刪除行從GridView的在asp.net

Question

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e) 
{ 
    Label lblEmpID = (Label)GridView1.Rows[e.RowIndex].FindControl("Label1"); //This is Table Id load on Label1 

    conn.Open(); 

    string cmdstr = "delete from LUMHS_CHALLAN_FEE where ID=@ID"; 

    SqlCommand cmd = new SqlCommand(cmdstr, conn); 

    cmd.Parameters.AddWithValue("@ID", lblEmpID.Text); 

    cmd.ExecuteNonQuery(); 

    conn.Close(); 

    ShowStudentInfo(); /back to load Grid view Function 
} 

我想從GridView中刪除行，我寫了這個代碼，但行不能刪除，請幫我

Answer 1

是您的ID整數或字符串？ 如果它的整數嘗試convert.toInt32（lblEmpID.Text）;請