Question

我有一個GridView，我想綁定第一列（教師名）與DropDownList，我有GridView外。我怎樣才能使它工作？

protected void Button2_Click(object sender, EventArgs e) 
{ 
    string q = "select * from teacher where teachername='" + drpteachername.SelectedItem.ToString() + "' and ('2013-03-01' between date and todate) and '2013-03-31' between date and todate"; 
    dt = dbo.Getdt(q); 
    GridView1.DataSource = dt; 
    GridView1.DataBind(); 
    string teachername=drpteachername.SelectedItem.ToString(); 


    for (int i = 0; i < dt.Rows.Count ;i++) 
    { 
     Label lblteachername = (Label)GridView1.Rows[i].Cells[0].FindControl("lblgridteachername"); 

        this.GridView1.Rows[i].Cells[0].Value = teachername; 
    } 


} 

Answer 1

嘗試使用this.GridView1.Rows[i].Cells[0].Value = teachername;

不要猶豫，如果你覺得任何迷惑寫。

這條語句應該嵌入for循環。

Answer 2

你可以在prerender事件中得到它。

protected void GridView1_PreRender(object sender, EventArgs e) 
    { 
     Label lblteachername = (Label)GridView1.Rows[i].FindControl("lblgridteachername"); 
     lblteachername.Text = teachername; 
    }