Web Control that inherits the DataGrid

[Jonas Nilsson]

Hi!

Does anyone have a sample on how i can inherit the datagrid in a Web Control
and bind it to a datasource.
And then add template columns and add data from the datasource into the
columns

My Web Control inherits the DataGrid, i bind the control to a datasource
(DataReader) in my aspx code (Page_Load event)

But i can't get data from the DataItem in OnItemDataBound event in my Web
Control.

protected override void OnItemDataBound(DataGridItemEventArgs e)
{
LinkButton lb = new LinkButton();
lb.ID = "lbNav";

*** This row causes a "Object reference not set to an instance of an
object" ***
lb.Text = ((DataRowView)e.Item.DataItem).Row.ItemArray[1].ToString();

e.Item.Cells[0].Controls.Add(lb);
base.OnItemDataBound (e);
}

/Jonas

[Noel Hoo]

Morning Jonas,

Try this link
[url]http://msdn.microsoft.com/msdnmag/issues/01/10/cutting/cutting0110.asp[/url]
Build a Variety of Custom Controls Based on the DataGrid Control by Dino
Esposito

He rocks!!

Hope this helps,

--
Noel Hoo
[email][email protected][/email]

"Jonas Nilsson" <[email protected]> wrote in message
news:[email protected]..

> Hi!
>
> Does anyone have a sample on how i can inherit the datagrid in a Web

Control

> and bind it to a datasource.
> And then add template columns and add data from the datasource into the
> columns
>
> My Web Control inherits the DataGrid, i bind the control to a datasource
> (DataReader) in my aspx code (Page_Load event)
>
> But i can't get data from the DataItem in OnItemDataBound event in my Web
> Control.
>
> protected override void OnItemDataBound(DataGridItemEventArgs e)
> {
> LinkButton lb = new LinkButton();
> lb.ID = "lbNav";
>
> *** This row causes a "Object reference not set to an instance of an
> object" ***
> lb.Text = ((DataRowView)e.Item.DataItem).Row.ItemArray[1].ToString();
>
> e.Item.Cells[0].Controls.Add(lb);
> base.OnItemDataBound (e);
> }
>
> /Jonas
>
>
>