单击模板字段命令按钮时获取gridview单元格值 [英] getting gridview cell values when clicking template field command button

问题描述

我在模板字段中有一个带有命令按钮的gridview。
在没有选择行的情况下，如何获取命令按钮上的第一个单元格值？

为了测试，我尝试设置一个标签的文本值，但我认为，行不是先选择，它将无法工作

  Label3.Text =test + GridView1.SelectedRow.Cells [1] .Text; 
  

解决方案

您可以将行号作为CommandArgument发送按钮。

 < asp：Button ID =Button1CommandArgument ='<％＃Container.DataItemIndex％>' OnCommand =Button1_Commandrunat =serverText =Button/> 
  

并从代码后面的行和列中获取正确的值。

  protected void Button1_Command（object sender，CommandEventArgs e）
 {
 Label3.Text =test+ GridView1.Rows [Convert。 ToInt32（e.CommandArgument）]细胞[1]。文本。 
} 
  

正如后面发现的那样，您需要将GridView绑定到一个！ IsPostBack，否则你会得到一个无效的回发或回调参数错误。

  protected void Page_Load（object sender，EventArgs e ）
 {
 if（！IsPostBack）
 {
 GridView1.DataSource = myDataSource; 
 GridView1.DataBind（）; 
 
 
 
 
 
 
lock $ $ $ b $ p注意到搜索GridView像这样的单元格（行[0] .Cells [1] .Text）只有
适用于BoundField列，而不适用于TemplateField和AutoGenerated 
列。 
 
 
I have a gridview with a command button in a template field.
Without selecting the row first, how can I grab the first cell value on the command buttons on-click event?

To test, I tried to set a labels text value but I think that as the row is not select first, it won't work
Label3.Text = "test " + GridView1.SelectedRow.Cells[1].Text;

解决方案
You can send the row number as a CommandArgument in the button.
<asp:Button ID="Button1" CommandArgument='<%# Container.DataItemIndex %>' OnCommand="Button1_Command" runat="server" Text="Button" />
And grab the correct value from the row and column in code behind.
protected void Button1_Command(object sender, CommandEventArgs e)
{
    Label3.Text = "test " + GridView1.Rows[Convert.ToInt32(e.CommandArgument)].Cells[1].Text;    
}
As discovered later, you need to wrap the binding of the GridView into a !IsPostBack, otherwise you'll get an "Invalid postback or callback argument" error.
protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        GridView1.DataSource = myDataSource;
        GridView1.DataBind();
    }
}



  
Note that searching GridView cells like this (Rows[0].Cells[1].Text) only
  works with BoundField columns, not TemplateField and AutoGenerated
  Columns.


                        
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