Determine which cell was clicked in datagrid

[Q_Quek]

Hi, I got a problem of how to identify the cell was clicked in datagrid. In my datagrid, there are 10 template column and each column have a label and image button. I want to hide the label when user click the image button. I do not know which row of cell is clicked but column. I create a command to the button, for example: HTML: CodeBehind(VB.NET) Public Sub GetControl(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.CommandEventArgs) Select Case "e.CommandArgument" Case "1" 'Column 1 Dim Label1 as Label = DataGrid1.item(??).FindControl("Label") Label1.visible = False Case "2" 'Column 2 ... End Select End Sub Notice the ??(row), how can I get it??????? I was struggle on this problem couple of day, appreciate for any help! :) Calvin ****

[minhpc_bk]

Hi there, You can determine the row index thanks to the sender object. Here, the sender is the button that you click:

Button button = sender as Button;

then you can specify the row index based on the UniqueID or ClientID properties of the button. In addition, there are a number of different ways to achieve what you need, below are just some of them: + You can get the parent of the button then find the label:

Button button = sender as Button;
TableCell cell = button.Parent as TableCell;
string labelID = "Label" + e.CommandArgument;
Label label = cell.FindControl(labelID) as Label;
label.Visible = false;

+ You can get through the child controls of the parent:

Button button = sender as Button;
TableCell cell = button.Parent as TableCell;
foreach(Control ctrl in cell.Controls)
{
if(ctrl is Label)
{
ctrl.Visible = false;
return;
}
}

+ You can simply create a handler for the ItemCommand event of the DataGrid control. Then in the handler, you can easily determine which Label control should be invisible. The sample code is something like this:

private void DataGrid1_ItemCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
//The e.CommandArgument contains the column index.
string id = "Label" + e.CommandArgument;
Label label = e.Item.FindControl(id) as Label;
label.Visible = false;
}

[Q_Quek]

Well, this is good solution, thank you very much Calvin ****