EXT.NET高效开发（二）——封装函数-白红宇

EXT.NET高效开发（二）——封装函数

阅读量：6976 次

发布时间：2019-06-27

本文共 27757 字，大约阅读时间需要 92 分钟。

在上一篇《》中，大致的介绍了一下EXT.NET。那么本篇就要继续完成未完成的事业了。说到高效开发，那就是八仙过海各显神通。比如使用代码生成器，这点大家可以参考我的这篇帖子《》。本人是比较推崇批量化生产的。当然，本篇的重点不在这，看过标题的人都知道。

在使用EXT.NET的时候（当然不仅仅是EXT.NET），总是要做很多重复的事，于是封装一些实用的函数可以一劳永逸呀。

1）单选框和复选框.

看图说话开始了，如图

当选择其他的时候，出框框填写数据。在实际需求中，很多选择项都不是只有A、B、C、D，往往还能自己自定义。遇到这种需求的，每次加个框框跟后面既麻烦又不方便布局，于是秉着不重复造轮子的原则，定义了以下函数：

                            
/// <summary>
/// 绑定单选框组（最后一项为可编辑项，保持位置为ID+Hidden）
/// </summary>
/// <typeparam name="T">类类型</typeparam>
/// <param name="lst">泛型集合</param>
/// <param name="ID">复选框组ID</param>
/// <param name="TextPropertyName">需要绑定的文本属性字段名（大写小都必须一致）</param>
/// <param name="ValuePropertyName">需要绑定的值属性字段名（大写小都必须一致）</param>
/// <param name="CheckedPropertyName">需要绑定的选择属性字段名（大写小都必须一致）</param>
/// <param name="isCheckedPropertyName">是否是选择属性字段名，如果如false，则CheckedPropertyName表示选中的值</param>
/// <param name="_ColumnsNumber">显示列数</param>
/// <param name="_remark">备注项名称，如设置了此项，则可以填写该项备注</param>
/// <param name="textlen">显示的文本长度</param>
public
static
void
BindRadioGroup<T>(System.Web.UI.UserControl _userControl, List<T> lst, 
string
ID, 
string
TextPropertyName, 
string
ValuePropertyName, 
string
CheckedPropertyName, 
bool
isCheckedPropertyName, 
int
? _ColumnsNumber, 
string
_remark, 
int
textlen)
{ 
    
if
(lst != 
null
&& lst.Count > 0)
    
{ 
        
Control _control = _userControl.FindControl(ID);
        
if
(_control 
is
RadioGroup)
        
{ 
            
//该脚本实现弹框填写其他项，以下是参数
            
//hiddenID：其他项的文本保存位置ID
            
//chk：其他项的CheckBox
            
//orgBoxLabel：原始的BoxLabel
            
string
_setRemarkScript =
            
@"
                        
function setChkRemark(hiddenID, chk, orgBoxLabel ,textlen) { 
                            
if (chk.getValue()) { 
                                
Ext.MessageBox.show({ 
                                    
title: orgBoxLabel,
                                    
msg: '请输入' + orgBoxLabel + '：',
                                    
width: 300,
                                    
buttons: Ext.MessageBox.OKCANCEL,
                                    
multiline: true,
                                    
value: hiddenID.getValue(),
                                    
fn: function (btn, text) { 
                                        
var remark = text.replace(/(^\s*)|(\s*$)/g, '');
                                        
if (btn == 'cancel')
                                            
Ext.MessageBox.alert('温馨提示', '操作已取消。');
                                        
else if (btn == 'ok') { 
                                            
hiddenID.setValue(remark);
                                            
if (remark!='') 
                                                
chk.setBoxLabel(orgBoxLabel+':'+(remark.length>textlen? remark.toString().substring(0,textlen)+'...':remark));
                                            
else
                                                
chk.setBoxLabel(orgBoxLabel);
                                        
}
                                    
}
                                
});
                            
}
                        
}
            
"
;
            
//注册函数
            
_userControl.Page.ClientScript.RegisterStartupScript(_userControl.GetType(), 
"setChkRemark"
, _setRemarkScript, 
true
);
            
RadioGroup groupRadios = _control 
as
RadioGroup;
            
if
(groupRadios == 
null
)
                
return
;
            
//groupRadios.SubmitValue = true;
            
#region 【_ColumnsNumber】设置显示列数，为null则一行显示4列。
            
_ColumnsNumber = _ColumnsNumber ?? 4;
            
if
(lst.Count <= _ColumnsNumber)
            
{ 
                
groupRadios.ColumnsNumber = lst.Count;
            
}
            
else
            
{ 
                
groupRadios.ColumnsNumber = _ColumnsNumber.Value;
            
}
            
#endregion
            
groupRadios.Items.Clear();
            
int
i = 0;
            
foreach
(var item 
in
lst)
            
{ 
                
T t = item;
                
Type type = t.GetType();
                
Radio rdo = 
new
Radio();
                
rdo.ID = 
string
.Format(
"{0}items{1}"
, ID, i);
                
PropertyInfo TextProInfo = type.GetProperty(TextPropertyName);
                
if
(TextProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, TextPropertyName);
                
PropertyInfo ValueProInfo = type.GetProperty(ValuePropertyName);
                
if
(ValueProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, ValuePropertyName);
                
object
objText = TextProInfo.GetValue(t, 
null
);
                
rdo.BoxLabel = objText == 
null
? 
string
.Empty : objText.ToString();
                
object
objValue = ValueProInfo.GetValue(t, 
null
).ToString();
                
rdo.Tag = objValue == 
null
? 
string
.Empty : objValue.ToString();
                
rdo.InputValue = objValue == 
null
? 
string
.Empty : objValue.ToString();
                
if
(!isCheckedPropertyName)
                
{ 
                    
if
(rdo.Tag == CheckedPropertyName)
                        
rdo.Checked = 
true
;
                    
groupRadios.Items.Add(rdo);
                    
i++;
                    
continue
;
                
}
                
PropertyInfo CheckedProInfo = type.GetProperty(CheckedPropertyName);
                
if
(CheckedProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, CheckedPropertyName);
                
if
((CheckedProInfo.GetValue(t, 
null
) ?? 0).ToString() == 
"1"
)
                    
rdo.Checked = 
true
;
                
groupRadios.Items.Add(rdo);
                
i++;
            
}
            
groupRadios.Items[groupRadios.Items.Count - 1].Listeners.Check.Handler = 
"setChkRemark(#{"
+ ID + 
"Hidden},this,'"
+ _remark + 
"',"
+ textlen + 
");"
;
        
}
        
else
if
(_control 
is
System.Web.UI.WebControls.RadioButtonList)
        
{ 
            
System.Web.UI.WebControls.RadioButtonList _rbl = _control 
as
System.Web.UI.WebControls.RadioButtonList;
            
_rbl.DataTextField = TextPropertyName;
            
_rbl.DataValueField = ValuePropertyName;
            
_rbl.DataSource = lst;
            
_rbl.RepeatDirection = System.Web.UI.WebControls.RepeatDirection.Horizontal;
            
//_rbl.RepeatLayout = RepeatLayout.Flow;
            
_rbl.DataBind();
            
if
(!isCheckedPropertyName)
                
_rbl.SelectedValue = CheckedPropertyName;
        
}
    
}
}
         
       

                            
这样调用起来就方便了，如：

                            
ExtControlHelper.BindCheckGroup(
this
, _db.SelectGeneralFromTableINFO(ShopID, CurrentFormID,
                                                                     
"TerminationReason"
).ToList()
                                
, 
"cblTerminationReason"
, 
"AttributeValue"
, 
"AttributeID"
, 
"CheckValue"
,
                                
4, 
"其他"
, 8);
         
       

不过别忘了在页面上丢一个“<ext:Hidden ID="cblTerminationReasonHidden" runat="server" />”。

为了方便，本人又定义了以下几个函数：

                            
/// <summary>
/// 绑定单选框组
/// </summary>
/// <typeparam name="T">类类型</typeparam>
/// <param name="lst">泛型集合</param>
/// <param name="ID">复选框组ID</param>
/// <param name="TextPropertyName">需要绑定的文本属性字段名（大写小都必须一致）</param>
/// <param name="ValuePropertyName">需要绑定的值属性字段名（大写小都必须一致）</param>
/// <param name="CheckedPropertyName">需要绑定的选择属性字段名（大写小都必须一致）</param>
/// <param name="isCheckedPropertyName">是否是选择属性字段名，如果如false，则CheckedPropertyName表示选中的值</param>
/// <param name="_ColumnsNumber">显示列数</param>
public
static
void
BindRadioGroup<T>(System.Web.UI.UserControl _userControl, List<T> lst, 
string
ID, 
string
TextPropertyName, 
string
ValuePropertyName, 
string
CheckedPropertyName, 
bool
isCheckedPropertyName, 
int
? _ColumnsNumber)
{ 
    
if
(lst != 
null
&& lst.Count > 0)
    
{ 
        
Control _control = _userControl.FindControl(ID);
        
if
(_control 
is
RadioGroup)
        
{ 
            
RadioGroup groupRadios = _control 
as
RadioGroup;
            
if
(groupRadios == 
null
)
                
return
;
            
#region 【_ColumnsNumber】设置显示列数，为null则一行显示4列。
            
_ColumnsNumber = _ColumnsNumber ?? 4;
            
if
(lst.Count <= _ColumnsNumber)
            
{ 
                
groupRadios.ColumnsNumber = lst.Count;
            
}
            
else
            
{ 
                
groupRadios.ColumnsNumber = _ColumnsNumber.Value;
            
}
            
#endregion
            
groupRadios.Items.Clear();
            
int
i = 0;
            
foreach
(var item 
in
lst)
            
{ 
                
T t = item;
                
Type type = t.GetType();
                
Radio rdo = 
new
Radio();
                
rdo.ID = 
string
.Format(
"{0}items{1}"
, ID, i);
                
PropertyInfo TextProInfo = type.GetProperty(TextPropertyName);
                
if
(TextProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, TextPropertyName);
                
PropertyInfo ValueProInfo = type.GetProperty(ValuePropertyName);
                
if
(ValueProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, ValuePropertyName);
                
object
objText = TextProInfo.GetValue(t, 
null
);
                
rdo.BoxLabel = objText == 
null
? 
string
.Empty : objText.ToString();
                
object
objValue = ValueProInfo.GetValue(t, 
null
).ToString();
                
rdo.Tag = objValue == 
null
? 
string
.Empty : objValue.ToString();
                
rdo.InputValue = objValue == 
null
? 
string
.Empty : objValue.ToString();
                
if
(!isCheckedPropertyName)
                
{ 
                    
if
(rdo.Tag == CheckedPropertyName)
                        
rdo.Checked = 
true
;
                    
groupRadios.Items.Add(rdo);
                    
i++;
                    
continue
;
                
}
                
PropertyInfo CheckedProInfo = type.GetProperty(CheckedPropertyName);
                
if
(CheckedProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, CheckedPropertyName);
                
if
((CheckedProInfo.GetValue(t, 
null
) ?? 0).ToString() == 
"1"
)
                    
rdo.Checked = 
true
;
                
groupRadios.Items.Add(rdo);
                
i++;
            
}
        
}
        
else
if
(_control 
is
System.Web.UI.WebControls.RadioButtonList)
        
{ 
            
System.Web.UI.WebControls.RadioButtonList _rbl = _control 
as
System.Web.UI.WebControls.RadioButtonList;
            
_rbl.DataTextField = TextPropertyName;
            
_rbl.DataValueField = ValuePropertyName;
            
_rbl.DataSource = lst;
            
_rbl.RepeatDirection = System.Web.UI.WebControls.RepeatDirection.Horizontal;
            
//_rbl.RepeatLayout = RepeatLayout.Flow;
            
_rbl.DataBind();
            
if
(!isCheckedPropertyName)
                
_rbl.SelectedValue = CheckedPropertyName;
        
}
    
}
}
/// <summary>
/// 绑定复选框组
/// </summary>
/// <typeparam name="T">类类型</typeparam>
/// <param name="lst">泛型集合</param>
/// <param name="ID">复选框组ID</param>
/// <param name="TextPropertyName">需要绑定的文本属性字段名（大写小都必须一致）</param>
/// <param name="ValuePropertyName">需要绑定的值属性字段名（大写小都必须一致）</param>
/// <param name="CheckedPropertyName">需要绑定的选择属性字段名（大写小都必须一致）</param>
public
static
void
BindCheckGroup<T>(Control _userControl, List<T> lst, 
string
ID, 
string
TextPropertyName, 
string
ValuePropertyName, 
string
CheckedPropertyName, 
int
? _ColumnsNumber)
{ 
    
if
(lst != 
null
&& lst.Count > 0)
    
{ 
        
Control _control = _userControl.FindControl(ID);
        
if
(_control 
is
CheckboxGroup)
        
{ 
            
CheckboxGroup groupChks = _control 
as
CheckboxGroup;
            
if
(groupChks == 
null
)
                
return
;
            
#region 【_ColumnsNumber】设置显示列数，为null则一行显示4列。
            
_ColumnsNumber = _ColumnsNumber ?? 4;
            
if
(lst.Count <= _ColumnsNumber)
            
{ 
                
groupChks.ColumnsNumber = lst.Count;
            
}
            
else
            
{ 
                
groupChks.ColumnsNumber = _ColumnsNumber.Value;
            
}
            
#endregion
            
groupChks.Items.Clear();
            
int
i = 0;
            
foreach
(var item 
in
lst)
            
{ 
                
T t = item;
                
Type type = t.GetType();
                
Checkbox chk = 
new
Checkbox();
                
chk.ID = 
string
.Format(
"{0}items{1}"
, ID, i);
                
PropertyInfo TextProInfo = type.GetProperty(TextPropertyName);
                
if
(TextProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, TextPropertyName);
                
PropertyInfo ValueProInfo = type.GetProperty(ValuePropertyName);
                
if
(ValueProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, ValuePropertyName);
                
PropertyInfo CheckedProInfo = type.GetProperty(CheckedPropertyName);
                
if
(CheckedProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, CheckedPropertyName);
                
object
objText = TextProInfo.GetValue(t, 
null
);
                
chk.BoxLabel = objText == 
null
? 
string
.Empty : objText.ToString();
                
object
objValue = ValueProInfo.GetValue(t, 
null
).ToString();
                
chk.Tag = objValue == 
null
? 
string
.Empty : objValue.ToString();
                
chk.InputValue = chk.Tag;
                
//chk.InputValue = objValue == null ? string.Empty : objValue.ToString();
                
var _checkValue = (CheckedProInfo.GetValue(t, 
null
) ?? 0).ToString();
                
if
(_checkValue == 
"1"
|| (_checkValue != 
null
&& _checkValue.ToLower() == 
"true"
))
                    
chk.Checked = 
true
;
                
groupChks.Items.Add(chk);
                
i++;
            
}
        
}
        
else
if
(_control 
is
System.Web.UI.WebControls.CheckBoxList)
        
{ 
            
System.Web.UI.WebControls.CheckBoxList _cbl = _control 
as
System.Web.UI.WebControls.CheckBoxList;
            
_cbl.RepeatDirection = System.Web.UI.WebControls.RepeatDirection.Horizontal;
            
_cbl.RepeatLayout = System.Web.UI.WebControls.RepeatLayout.Table;
            
_cbl.RepeatColumns = 7;
            
_cbl.Width = System.Web.UI.WebControls.Unit.Parse(
"100%"
);
            
foreach
(var item 
in
lst)
            
{ 
                
T t = item;
                
Type type = t.GetType();
                
Checkbox chk = 
new
Checkbox();
                
PropertyInfo TextProInfo = type.GetProperty(TextPropertyName);
                
if
(TextProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, TextPropertyName);
                
PropertyInfo ValueProInfo = type.GetProperty(ValuePropertyName);
                
if
(ValueProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, ValuePropertyName);
                
PropertyInfo CheckedProInfo = type.GetProperty(CheckedPropertyName);
                
if
(CheckedProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, CheckedPropertyName);
                
object
objText = TextProInfo.GetValue(t, 
null
);
                
object
objValue = ValueProInfo.GetValue(t, 
null
).ToString();
                
System.Web.UI.WebControls.ListItem _li = 
new
System.Web.UI.WebControls.ListItem();
                
_li.Text = objText == 
null
? 
string
.Empty : objText.ToString();
                
_li.Value = objValue == 
null
? 
string
.Empty : objValue.ToString();
                
var _checkValue = CheckedProInfo.GetValue(t, 
null
).ToString();
                
if
(_checkValue == 
"1"
|| (_checkValue != 
null
&& _checkValue.ToLower() == 
"true"
))
                    
_li.Selected = 
true
;
                
_cbl.Items.Add(_li);
            
}
        
}
    
}
}
/// <summary>
/// 绑定复选框组（最后一项为可编辑项，保持位置为ID+Hidden）
/// </summary>
/// <typeparam name="T">类类型</typeparam>
/// <param name="lst">泛型集合</param>
/// <param name="ID">复选框组ID</param>
/// <param name="TextPropertyName">需要绑定的文本属性字段名（大写小都必须一致）</param>
/// <param name="ValuePropertyName">需要绑定的值属性字段名（大写小都必须一致）</param>
/// <param name="CheckedPropertyName">需要绑定的选择属性字段名（大写小都必须一致）</param>
/// <param name="_ColumnsNumber">显示列数</param>
/// <param name="_remark">备注项名称，如设置了此项，则可以填写该项备注</param>
/// <param name="textlen">显示的文本长度</param>
public
static
void
BindCheckGroup<T>(Control _userControl, List<T> lst, 
string
ID, 
string
TextPropertyName, 
string
ValuePropertyName, 
string
CheckedPropertyName, 
int
? _ColumnsNumber, 
string
_remark, 
int
textlen)
{ 
    
if
(lst != 
null
&& lst.Count > 0)
    
{ 
        
Control _control = _userControl.FindControl(ID);
        
if
(_control 
is
CheckboxGroup)
        
{ 
            
ToolTip _tool=
new
ToolTip();
            
_tool.ID = 
string
.Format(
"{0}ToolTip"
, ID);
            
//该脚本实现弹框填写其他项，以下是参数
            
//hiddenID：其他项的文本保存位置ID
            
//chk：其他项的CheckBox
            
//orgBoxLabel：原始的BoxLabel
            
string
_setRemarkScript =
            
@"
                        
function setChkRemark(hiddenID, chk, orgBoxLabel ,textlen) { 
                            
if (chk.getValue()) { 
                                
Ext.MessageBox.show({ 
                                    
title: orgBoxLabel,
                                    
msg: '请输入' + orgBoxLabel + '：',
                                    
width: 300,
                                    
buttons: Ext.MessageBox.OKCANCEL,
                                    
multiline: true,
                                    
value: hiddenID.getValue(),
                                    
fn: function (btn, text) { 
                                        
var remark = text.replace(/(^\s*)|(\s*$)/g, '');
                                        
if (btn == 'cancel')
                                            
Ext.MessageBox.alert('温馨提示', '操作已取消。');
                                        
else if (btn == 'ok') { 
                                            
hiddenID.setValue(remark);
                                            
if (remark!='') 
                                                
chk.setBoxLabel(orgBoxLabel+'：'+(remark.length>textlen? remark.toString().substring(0,textlen)+'...':remark));
                                            
else
                                                
chk.setBoxLabel(orgBoxLabel);
                                        
}
                                    
}
                                
});
                            
}
                        
}
            
"
;
            
//注册函数
            
_userControl.Page.ClientScript.RegisterStartupScript(_userControl.GetType(), 
"setChkRemark"
, _setRemarkScript, 
true
);
            
CheckboxGroup groupChks = _control 
as
CheckboxGroup;
            
if
(groupChks == 
null
)
                
return
;
            
#region 【_ColumnsNumber】设置显示列数，为null则一行显示4列。
            
_ColumnsNumber = _ColumnsNumber ?? 4;
            
if
(lst.Count <= _ColumnsNumber)
            
{ 
                
groupChks.ColumnsNumber = lst.Count;
            
}
            
else
            
{ 
                
groupChks.ColumnsNumber = _ColumnsNumber.Value;
            
}
            
#endregion
            
groupChks.Items.Clear();
            
int
i = 0;
            
foreach
(var item 
in
lst)
            
{ 
                
T t = item;
                
Type type = t.GetType();
                
Checkbox chk = 
new
Checkbox();
                
chk.ID = 
string
.Format(
"{0}items{1}"
, ID, i);
                
PropertyInfo TextProInfo = type.GetProperty(TextPropertyName);
                
if
(TextProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, TextPropertyName);
                
PropertyInfo ValueProInfo = type.GetProperty(ValuePropertyName);
                
if
(ValueProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, ValuePropertyName);
                
PropertyInfo CheckedProInfo = type.GetProperty(CheckedPropertyName);
                
if
(CheckedProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, CheckedPropertyName);
                
object
objText = TextProInfo.GetValue(t, 
null
);
                
chk.BoxLabel = objText == 
null
? 
string
.Empty : objText.ToString();
                
chk.ToolTip = objText == 
null
? 
string
.Empty : objText.ToString();
                
object
objValue = ValueProInfo.GetValue(t, 
null
).ToString();
                
chk.Tag = objValue == 
null
? 
string
.Empty : objValue.ToString();
                
chk.InputValue = chk.Tag;
                
//chk.InputValue = objValue == null ? string.Empty : objValue.ToString();
                
var _checkValue = (CheckedProInfo.GetValue(t, 
null
) ?? 0).ToString();
                
if
(_checkValue == 
"1"
|| (_checkValue != 
null
&& _checkValue.ToLower() == 
"true"
))
                    
chk.Checked = 
true
;
                
//if (i == lst.Count - 1)
                
//{ 
                
//    chk.Listeners.Check.Handler = "setChkRemark(#{" + ID + "Hidden},this,'" + _remark + "'," + textlen + ");";
                
//    //chk.Icons.Add(Icon.Note);
                
//}
                
groupChks.Items.Add(chk);
                
i++;
            
}
            
groupChks.Items[groupChks.Items.Count - 1].Listeners.Check.Handler = 
string
.Format(
"setChkRemark(#{ 
{ 
{0}Hidden}},this,'{1}',{2});"
, ID, _remark, textlen);
            
//groupChks.Items[groupChks.Items.Count - 1].ToolTip=
        
}
        
else
if
(_control 
is
System.Web.UI.WebControls.CheckBoxList)
        
{ 
            
System.Web.UI.WebControls.CheckBoxList _cbl = _control 
as
System.Web.UI.WebControls.CheckBoxList;
            
_cbl.RepeatDirection = System.Web.UI.WebControls.RepeatDirection.Horizontal;
            
_cbl.RepeatLayout = System.Web.UI.WebControls.RepeatLayout.Table;
            
_cbl.RepeatColumns = 7;
            
_cbl.Width = System.Web.UI.WebControls.Unit.Parse(
"100%"
);
            
foreach
(var item 
in
lst)
            
{ 
                
T t = item;
                
Type type = t.GetType();
                
Checkbox chk = 
new
Checkbox();
                
PropertyInfo TextProInfo = type.GetProperty(TextPropertyName);
                
if
(TextProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, TextPropertyName);
                
PropertyInfo ValueProInfo = type.GetProperty(ValuePropertyName);
                
if
(ValueProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, ValuePropertyName);
                
PropertyInfo CheckedProInfo = type.GetProperty(CheckedPropertyName);
                
if
(CheckedProInfo == 
null
)
                    
ExtensionMethods.ThrowNullException(type, CheckedPropertyName);
                
object
objText = TextProInfo.GetValue(t, 
null
);
                
object
objValue = ValueProInfo.GetValue(t, 
null
).ToString();
                
System.Web.UI.WebControls.ListItem _li = 
new
System.Web.UI.WebControls.ListItem();
                
_li.Text = objText == 
null
? 
string
.Empty : objText.ToString();
                
_li.Value = objValue == 
null
? 
string
.Empty : objValue.ToString();
                
var _checkValue = CheckedProInfo.GetValue(t, 
null
).ToString();
                
if
(_checkValue == 
"1"
|| (_checkValue != 
null
&& _checkValue.ToLower() == 
"true"
))
                    
_li.Selected = 
true
;
                
_cbl.Items.Add(_li);
            
}
        
}
    
}
}
         
       

2）下拉列表。

无图无真相，果断上图。

绑定下拉列表，在这里，本人也封装了以下。如下面代码：

                            
/// <summary>
/// 通过反射绑定下拉列表
/// </summary>
/// <typeparam name="T">类类型</typeparam>
/// <param name="lst">泛型集合</param>
/// <param name="ID">下拉列表ID</param>
/// <param name="TextPropertyName">文本属性名</param>
/// <param name="ValuePropertyName">值属性名</param>
/// <param name="_SelectValue">选择的值</param>
public
static
void
BindComobox<T>(Control _userControl, List<T> lst, 
string
ID, 
string
TextPropertyName, 
string
ValuePropertyName, 
string
_SelectValue)
{ 
    
if
(lst != 
null
&& lst.Count > 0)
    
{ 
        
ComboBox _cbos = _userControl.FindControl(ID) 
as
ComboBox;
        
if
(_cbos == 
null
)
            
return
;
        
_cbos.Items.Clear();
        
foreach
(var item 
in
lst)
        
{ 
            
T t = item;
            
Type type = t.GetType();
            
ListItem _li = 
new
ListItem();
            
//文本属性
            
PropertyInfo TextProInfo = type.GetProperty(TextPropertyName);
            
if
(TextProInfo == 
null
)
                
ExtensionMethods.ThrowNullException(type, TextPropertyName);
            
//值属性
            
PropertyInfo ValueProInfo = type.GetProperty(ValuePropertyName);
            
if
(ValueProInfo == 
null
)
                
ExtensionMethods.ThrowNullException(type, ValuePropertyName);
            
object
objText = TextProInfo.GetValue(t, 
null
);
            
_li.Text = objText == 
null
? 
string
.Empty : objText.ToString();
            
object
objValue = ValueProInfo.GetValue(t, 
null
).ToString();
            
_li.Value = objValue == 
null
? 
string
.Empty : objValue.ToString();
            
_cbos.Items.Add(_li);
        
}
        
if
(!
string
.IsNullOrEmpty(_SelectValue))
            
_cbos.SelectedItem.Value = _SelectValue;
    
}
}
         
       

其实还有一种方式可以绑定，但是本人更喜欢这种。比如通过Store：

                            
_store = 
new
Store { ID = 
string
.Format(
"_store{0}"
, Guid.NewGuid().ToString(
"N"
)), IDMode = IDMode.Static };
                   
_jsonReader = 
new
JsonReader();
                   
_jsonReader.Fields.Add(
new
RecordField(
"text"
, RecordFieldType.String));
                   
_jsonReader.Fields.Add(
new
RecordField(
"value"
, RecordFieldType.String));
                   
_store.Reader.Add(_jsonReader);
         
       

然后再加上自己定义的URL和参数，定义几个参数，封装一下，也可以通用，这里我就不继续写下去了。

3）SharePoint中，给EXT.NET赋权。

这段代码，提供给需要的人吧。当初这问题把我折磨得快疯狂了。还好想到了这么一个解决方案。

                            
/// <summary>
/// 给EXT.NET脚本赋予特权
/// </summary>
/// <param name="ResManager">ResourceManager</param>
public
static
void
BuildAllPrivilegesForExtNET(
this
ResourceManager ResManager)
{ 
    
if
(!X.IsAjaxRequest)
    
{ 
        
SPSecurity.RunWithElevatedPrivileges(
            
delegate
()
            
{ 
                
ResManager.RenderScripts = ResourceLocationType.Embedded;
                
ResManager.BuildScripts();
                
ResManager.RenderStyles = ResourceLocationType.Embedded;
                
ResManager.BuildStyles();
            
}
        
);
    
}
}
         
       

4）读取与赋值。

                            
/// <summary>
/// 设置类型的属性值
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="userControl">用户控件</param>
public
static
void
SetValues<T>(
this
System.Web.UI.Control userControl, T t)
{ 
    
Type type = t.GetType();
    
if
(type.IsClass)
    
{ 
        
var properties = type.GetProperties();
        
foreach
(var item 
in
properties)
        
{ 
            
if
(item.CanWrite)
            
{ 
                
System.Web.UI.Control control = userControl.FindControl(
"txt"
+ item.Name);
                
if
(control != 
null
)
                
{ 
                    
string
text = 
string
.Empty;
                    
if
(control 
is
DateField)
                    
{ 
                        
DateField _df = control 
as
DateField;
                        
if
(_df.IsEmpty)
                        
{ 
                            
if
(item.PropertyType.IsGenericType && item.PropertyType.GetGenericTypeDefinition() == 
typeof
(Nullable<>))
                                
item.SetValue(t, 
null
, 
null
);
                            
//else
                            
//    item.SetValue(t, System.Data.DbType.DateTime., null);
                            
continue
;
                        
}
                        
else
                            
text = _df.Text;
                    
}
                    
if
(control 
is
TextFieldBase)
                        
text = (control 
as
TextFieldBase).Text.Trim();
                    
if
(item.PropertyType.IsEnum)
                    
{ 
                        
item.SetValue(t, Enum.ToObject(item.PropertyType, text), 
null
);
                    
}
                    
else
                    
{ 
                        
//判断是否为可为空类型
                        
if
(item.PropertyType.IsGenericType && item.PropertyType.GetGenericTypeDefinition() == 
typeof
(Nullable<>))
                        
{ 
                            
if
(item.PropertyType.GetGenericArguments()[0].Equals(
typeof
(DateTime)) && text == 
"0001/1/1 0:00:00"
)
                                
item.SetValue(t, 
null
, 
null
);
                            
else
                                
item.SetValue(t, Convert.ChangeType(text, item.PropertyType.GetGenericArguments()[0]), 
null
);
                        
}
                        
else
                            
item.SetValue(t, Convert.ChangeType(text, item.PropertyType), 
null
);
                    
}
                
}
            
}
        
}
    
}
}
/// <summary>
/// 设置控件的属性值
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="t">类的对象</param>
/// <param name="userControl">用户控件</param>
public
static
void
SetControlValues<T>(
this
System.Web.UI.UserControl userControl, T t)
{ 
    
Type type = t.GetType();
    
if
(type.IsClass)
    
{ 
        
var properties = type.GetProperties();
        
foreach
(var item 
in
properties)
        
{ 
            
System.Web.UI.Control control = userControl.FindControl(
"txt"
+ item.Name);
            
if
(control != 
null
)
            
{ 
                
if
(control 
is
TextFieldBase)
                
{ 
                    
TextFieldBase txt = control 
as
TextFieldBase;
                    
object
obj = item.GetValue(t, 
null
);
                    
if
(obj != 
null
)
                        
txt.Text = obj.ToString();
                
}
                
else
if
(control 
is
DisplayField)
                
{ 
                    
DisplayField txt = control 
as
DisplayField;
                    
object
obj = item.GetValue(t, 
null
);
                    
if
(obj != 
null
)
                        
txt.Text = obj.ToString();
                
}
            
}
        
}
    
}
}
         
       

上面的代码进行了可为空类型的判断，这点需要注意。

5）设置通用的表单验证脚本。

                            
该出图的时候还是得出图啊。

                            
首先需要验证的表单页面得挂上这段JS：

                            
var
valCss = 
''
;
function
showMsg(title, content, cs) { 
    
if
(valCss != cs) { 
        
valCss = cs;
        
Ext.net.Notification.show({ 
            
hideFx: { 
                
fxName: 
'switchOff'
,
                
args: [{}]
            
},
            
showFx: { 
                
args: [
                          
'C3DAF9'
,
                          
1,
                          
{ 
                              
duration: 2.0
                          
}
                      
],
                
fxName: 
'frame'
            
},
            
iconCls: cs,
            
closeVisible: 
true
,
            
html: content,
            
title: title + 
'   '
+ 
new
Date().format(
'g:i:s A'
)
        
});
    
}
}
         
       

然后：

                            
if
(!
string
.IsNullOrEmpty(_fp.Listeners.ClientValidation.Handler))
    
return
;
_fp.Listeners.ClientValidation.Handler =
    
@"
                
var isCheckd=valid;var msgs;var msg='';
                
if(typeof(ValCustomValidator)=='function')
                
{ 
                    
msgs=ValCustomValidator(false,valid);
                    
if(typeof(msgs.IsVal)!='undefined')
                    
{ 
                        
isCheckd=msgs.IsVal;
                        
if(msgs.Message!='')
                        
msg='<span style=\'color:red;\'>'+msgs.Message+'</span>';
                    
}
                    
else
                        
isCheckd=msgs;
                
}
                
if(typeof(#{btnSave})!='undefined' && #{btnSave}!=null)#{btnSave}.setDisabled(!isCheckd);
                
if(typeof(#{btnSumbit1})!='undefined' && #{btnSumbit1}!=null)#{btnSumbit1}.setDisabled(!isCheckd);
             
var valCs=isCheckd ? 'valaccept' : 'valexclamation';
             
if (msg=='') msg=isCheckd ? '<span style=\'color:green;\'>验证通过，可以提交数据</span>' : '<span style=\'color:red;\'>输入有误，请检查标红的输入项。</span>';
             
this.getBottomToolbar().setStatus({text :msg, iconCls: valCs});showMsg('温馨提示',msg,valCs);
  
"
;

顺便解释一下：

支持在页面上写自定义验证函数“ValCustomValidator”。存在与否都不会引发异常。

支持页面上防止保存提交按钮，存在与否也没关系。

你还可以根据自己的情况自定义。

因为这里是通用的，比如默认给每一个表单使用这个验证脚本。那么如何实现自定义验证呢？先欣赏两幅美图：

然后右下角就来提示了：

这里再贴上具体的JS：

                            
    
var ids1 = [
"ctl00_ctl07_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_ASP_wpresources_usercontrols_form_packagenotice_ascx_txt100E44D593C054BFD9B13EBFBD9AAA41A"
, 
"ctl00_ctl07_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_ASP_wpresources_usercontrols_form_packagenotice_ascx_txt124C85DB03BA04EBDBE5055EAC5FACAEC"
, 
"ctl00_ctl07_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_ASP_wpresources_usercontrols_form_packagenotice_ascx_txt1DF8DD73F58F84492B89D7194D52D947F"
, 
"ctl00_ctl07_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_ASP_wpresources_usercontrols_form_packagenotice_ascx_txt1ADD45D7F275148769BD0E20013DC25F2"
];
    
var ids2 = [
"ctl00_ctl07_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_ASP_wpresources_usercontrols_form_packagenotice_ascx_txt200E44D593C054BFD9B13EBFBD9AAA41A"
, 
"ctl00_ctl07_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_ASP_wpresources_usercontrols_form_packagenotice_ascx_txt224C85DB03BA04EBDBE5055EAC5FACAEC"
, 
"ctl00_ctl07_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_ASP_wpresources_usercontrols_form_packagenotice_ascx_txt2DF8DD73F58F84492B89D7194D52D947F"
, 
"ctl00_ctl07_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_g_6fdea0d3_1768_457b_a4ba_ff8b3fc1ea4e_ASP_wpresources_usercontrols_form_packagenotice_ascx_txt2ADD45D7F275148769BD0E20013DC25F2"
];
    
function valSumMax(ids, maxValue, msg) { 
        
if
(ids != 
null
&& ids.length > 0) { 
            
var _temp = 0;
            
for
(var i = 0; i < ids.length; i++) { 
                
var value = Ext.getCmp(ids[i]).getValue();
                
var _currentValue = parseInt(value);
                
_temp += isNaN(_currentValue) ? 0 : _currentValue;
                
if
(_temp > maxValue) { 
                    
var message = { 
'IsVal'
: 
false
, 
'Message'
: msg != 
""
? msg : (
"当前值"
+ _temp + 
"超过最大值"
+ maxValue + 
"。"
) };
                    
return
message;
                
}
            
}
        
}
        
var message = { 
'IsVal'
: 
true
, 
'Message'
: 
''
};
        
return
message;
    
}
    
function CustomValidator() { 
        
var msg = valSumMax(ids1, 2, 
"美容顾问服装最多只能填2件。请修改总数。"
);
        
if
(!msg.IsVal)
            
return
msg;
        
msg = valSumMax(ids2, 6, 
"美容师服装最多只能填6件。请修改总数。"
);
        
return
msg;
    
}
    
function ValCustomValidator(isVal, valid) { 
        
if
(
typeof
(valid) != 
'undefined'
&& (!valid))
            
return
valid;
        
if
(
typeof
(isVal) == 
'undefined'
|| isVal == 
null
|| isVal) { 
            
var msg = CustomValidator();
            
if
(!msg.IsVal) { 
                
Ext.MessageBox.show({ 
                    
title: 
'错误'
,
                    
msg: msg.Message,
                    
buttons: Ext.MessageBox.OK,
                    
icon: Ext.MessageBox.ERROR
                
});
                
return
false
;
            
} 
else
{ 
                
return
true
;
            
}
        
} 
else
{ 
            
return
CustomValidator();
        
}
    
}
         
       

看到上面那一串ID没，这就是不使用IDMode的后果。因为刚开始接触，未发现有这么个好东东。

好了，今天就到此为止吧，我们还会见面的。我上面用了一些反射，大家都说反射性能怎么样怎么样，但是这点消耗有时大可不必担心，不过有些还是可以优化的，比如绑定下拉列表，使用Store结合HttpProxy的话，就完全不需要用反射了。只是每次绑定的时候，代码里面要调用下，然后Httphandler类也要写点代码。

当然我封装的并不止这一些，但是只适合我自己的系统，就不方便拿出来了。

兄弟我先抛块砖，有玉的赶紧砸过来吧。

转载地址：http://wmesl.baihongyu.com/

你可能感兴趣的文章