如何获取使用asp .net检查的gridview中的CheckBoxes值

I am using checkbox in gridview .... I am using it in 1st cell.... When I select the checkbox at run time, I need to get those values... but on selecting or on click to checkbox, it's not finding or value is taking as FALSE... how to write in asp.net backend and in c# code?

我在gridview中使用了复选框....我在第一个单元格中使用它....当我在运行时选择复选框时,我需要获取这些值...但是在选择或单击复选框时,它不是发现或价值是假的...如何用asp.net后端和c#代码写?

 <asp:TemplateField>
   <ItemTemplate >
       <asp:checkbox id="ShowAddress" runat="server" />
  </ItemTemplate>
 </asp:TemplateField>

Code-behind:

  protected void Button1_Click(object sender, EventArgs e)
    {
        // Looping through all the rows in the GridView

        foreach (GridViewRow di in GridView1.Rows)
        {
         CheckBox chkBx = (CheckBox)di.FindControl("ShowAddress");

            if (chkBx != null && chkBx.Checked)
            {
                /// put your code here
            }
        }
    }

Is there any implementation to be done in script at page load?

页面加载时脚本中是否有任何实现?

Can anyone help?

有人可以帮忙吗?

5 个解决方案

#1

How do you populate your GridView? If you do this in Page_Load, make sure you are not doing it on postbacks (check IsPostBack).

你如何填充你的GridView?如果你在Page_Load中执行此操作,请确保您没有在回发中执行此操作(请检查IsPostBack)。

Is your chkBx variable null?

你的chkBx变量是null吗?

The following code works:

以下代码有效:

    protected void Button1_Click(object sender, EventArgs e)
    {
        foreach (GridViewRow row in GridView1.Rows)
        {
            CheckBox chk = row.Cells[0].Controls[0] as CheckBox;
            if (chk != null && chk.Checked)
            {
                // ...
            }
        }
    }

#2

StringCollection idCollection = new StringCollection();
string strID = string.Empty;

for (int i = 0; i < GridView1.Rows.Count; i++)
{
   CheckBox chkDelete = (CheckBox) GridView1.Rows.Cells[0].FindControl("chkSelect");
   if (chkDelete != null)
   {
     if (chkDelete.Checked)
      {
          strID = GridView1.Rows.Cells[1].Text;
         idCollection.Add(strID);
    }
  }
}

for more details check this link: http://www.itworld2.com/ghowto.aspx?id=69

有关详细信息,请访问此链接:http://www.itworld2.com/ghowto.aspx?id = 69

#3

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
     Loadgridview();// its a correct
    }//            not Loadgridview() here if you load above error is occur
 }

check it

#4

int i = 0;
foreach (GridViewRow row in GridView1.Rows)
{
    CheckBox chk = (CheckBox)GridView_AdminTags.Rows[i].Cells[0].FindControl("chkTag");
    if (chk != null)
        if (chk.Checked)
        {
            ////.......;
        }
    i++;
}
i = 0;

#5

Jakob Answer will work if below line is used. Even one control only in the cell, index need to be 1 not 0

如果使用以下行,Jakob Answer将起作用。即使一个控件只在单元格中,索引也需要为1而不是0

CheckBox chk = row.Cells[0].Controls[1] as CheckBox;

Thank you Sam

谢谢山姆

#1