如何在行数据绑定事件的网格视图中选中复选框。 [英] How to get the check box checked in a grid view on row data bound event.

问题描述

只有当价值为付费时，才应选中复选框，否则应取消选中。

我正在尝试此选项以检查所有复选框。

Only if value is "Paid" then only checkbox should be checked else it should unchecked.
I am trying this its making all the checkboxes checked.

protected void grdDataUpdate_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            CheckBox chk = (CheckBox)e.Row.FindControl("chkFIPaid");

            for (int i = 0; i < _dtStudentsFD.Rows.Count; i++)
            {
                if (_dtStudentsFD.Rows[i]["status"].ToString() == "Paid")
                {
                    chk.Checked = true;
                }
                else
                {
                    chk.Checked = false;
                }
            }
        }
    }

推荐答案

Why do you use another for loop in RowDataBOund... RowDatabound means it will be called for each and every row...
Solution 1:
Place anothe column in your data grid which takes the value of "Status" and make it invisible and then write ur code like this

protected void grdDataUpdate_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            CheckBox chk = (CheckBox)e.Row.FindControl("chkFIPaid");
             Label lblSatatus = (Label)e.Row.FindControl("lblStatusCol");
           
                if (lblSatatus.Text.ToString() == "Paid")
                {
                    chk.Checked = true;
                }
                else
                {
                    chk.Checked = false;
                }
            
        }
    }

这里当每一列被限制时访问状态值和复选框，然后根据该行的状态列值...将决定复选框状态。



如果它对您有用，请接受

protected void grdDataUpdate_RowDataBound（object sender，GridViewRowEventArgs e）

{

if（e.Row.RowType == DataControlRowType.DataRow）

{

CheckBox chk =（CheckBox）e.Row.FindControl（chkFIPaid ）;

if（e.Row.Cells [i] .Text ==付费）

{

chk.Enabled =假;

}

其他

{

chk.Enabled = true;

}

}

}

protected void grdDataUpdate_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
CheckBox chk = (CheckBox)e.Row.FindControl("chkFIPaid");
if (e.Row.Cells[i].Text == "Paid")
{
chk.Enabled = false;
}
else
{
chk.Enabled = true;
}
}
}

查看你的代码。我认为你做错了代码。

look at your code.i think your doing something wrong with fallowing code.

for (int i = 0; i < _dtStudentsFD.Rows.Count; i++)
 {
     if (_dtStudentsFD.Rows[i]["status"].ToString() == "Paid")
     {
        chk.Checked = true;
     }
     else
     {
        chk.Checked = false;
     }
}

而不是上面的代码，你应该尝试使用fallowing方法..

这里，'e.Row.Cells [5] .Text'是状态字段的值

Instead of above code , you should try with fallowing approach..
Here,'e.Row.Cells[5].Text' is the value of status field

void GridView1_RowDataBound(Object sender, GridViewRowEventArgs e)
  {
    if(e.Row.RowType == DataControlRowType.DataRow)
    {
     CheckBox chk=(CheckBox)e.Row.cells[0].FindControl("chkMyCheckBox");
     if(chk != null)
     {
      if(e.Row.Cells[5].Text == ""status"") //check for status column
      chk.Checked = true;
     }
    }
  }

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