无法获取gridview中的复选框的值 [英] Can't Get the value of Checkbox inside gridview

问题描述

我在获取gridview内复选框的值时遇到问题.我的网格视图代码是:

 <   asp:GridView     ID   ="   ="span>    runat   =" 服务器" <   RowStyle     ="  白色"  ForeColor   黑色"   包装  ="  True" / <  列 > 
 <   asp:TemplateField     HeaderText   ="  <   HeaderStyle     ="   Center"  VerticalAlign   中间"   宽度  ="  50像素" / <   ItemStyle     ="   Center"  VerticalAlign   中间"   宽度  ="  50像素" / <   HeaderTemplate  > 
 <   asp:CheckBox     ID   ="   onclick    javascript :HeaderClick(this);"   运行  ="      / <  /HeaderTemplate  > 
<   ItemTemplate  > 
<   asp:CheckBox     ID   ="   runat   服务器"  AutoPostBack   错误" / <  /ItemTemplate  > 
<  /asp:TemplateField  > 
<   asp:TemplateField     HeaderText   ="   ItemStyle-Horizo​​ntalAlign     HeaderStyle-Font-Underline   ="  > 
<   ItemTemplate  > 
<   asp:LinkBut​​ton     ID   ="   runat   服务器" 文本  <％ #Eval(" )％>' 
 
  CommandArgument   ='  "   Employee_User_Id")％> '    OnCommand   ="  User_Id_OnClick" <  /asp:LinkBut​​ton  > 
<  /ItemTemplate  > 
<  /asp:TemplateField  > 
<  /列 > 
<  /asp:gridview  >  

注意::我在我中称呼"

报价:

onclick =" javascript:HeaderClick(this);

"全选的Gridview

上面的代码按我想要的方式工作.问题我从后面的代码中得到复选框的值.选中复选框后，我单击提交按钮.在BUTTON单击事件后面的代码中，我想获取所有选中的复选框的值


我的代码背后的代码是

 对于 i  As  整数 =  0  到 empinfomation.Rows.Count- 1 
   Dim  chkDelete  As  CheckBox = _  DirectCast ( empinfomation.Rows( 0 ).Cells( 0 ).FindControl( 0 >"   chkBxSelect")，复选框)
如果 chkDelete 是不是 什么都没有 然后
                如果 chkDelete.选中然后
                    
                    ' 在此处进行操作
                结束 如果
            结束 如果
        下一步 

如果您注意到我正在传递

报价:

CommandArgument =''<％#Eval("Employee_User_Id")％>''

在我的gridview中.我想为每个选中的复选框获取此值.

谢谢

解决方案

按如下所示更改代码

将chk删除为复选框= _ DirectCast(empinfomation.Rows(i).FindControl(" )，CheckBox)

大家好，感谢您的回复.那是我的臭虫. btn click事件，我正在更新gridview数据，默认情况下，我的复选框值为false.这就是我变得虚假的原因.

I am having problem getting the value of check box inside gridview. my grid view code is :

 <asp:GridView ID="empinfomation" runat="server">
 <RowStyle BackColor="white" ForeColor="black" Wrap="True" />
 <Columns>
 <asp:TemplateField HeaderText="Select">
 <HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="50px" />
 <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="50px" />
 <HeaderTemplate>
 <asp:CheckBox ID="chkBxHeader" onclick="javascript:HeaderClick(this);"   runat="server"  />
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="chkBxSelect" runat="server" AutoPostBack="False" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Employee Name" ItemStyle-HorizontalAlign="left" HeaderStyle-Font-Underline="true">
<ItemTemplate>
<asp:LinkButton ID="Employee_Name" runat="server" Text='<%#Eval("Employee_Name") %>'

CommandArgument='<%#Eval("Employee_User_Id") %>' OnCommand="User_Id_OnClick">
</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</columns>
</asp:gridview>

NOTE:: i am calling "

Quote:

onclick="javascript:HeaderClick(this);

"" In my gridview for select all

The Above code work as i wanted to work. Problem i am having getting the value of check box from code behind . After i Selected check Box /Boxes , i Click SUBMIT BUTTON . In code behind on BUTTON click event i want to get the value for all checked checkbox


My Code behind Code is

  For i As Integer = 0 To empinfomation.Rows.Count - 1
  Dim chkDelete As CheckBox = _ DirectCast(empinfomation.Rows(0).Cells(0).FindControl("chkBxSelect"), CheckBox)
If chkDelete IsNot Nothing Then
                If chkDelete.Checked Then
                    
                    'Do stuff here
                End If
            End If
        Next

IF you note i am passing

Quote:

CommandArgument=''<%#Eval("Employee_User_Id") %>''

in my gridview . i want to get this value for each checked check box.

Thanks

解决方案

Change your code as below

Dim chkDelete As CheckBox = _ DirectCast(empinfomation.Rows(i).FindControl("chkBxSelect"), CheckBox)

Hey guys thanks for your responses . It was my codding bug . btn click event i was updating my gridview data and by default my check box value is false . This is the reason i was getting false.

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