How to manipulate DataGrid after binding?

[goodmorningsky]

Hi, all
I bind DataTable to DataGrid from Page_Load event.

DataView dvw = ds.Tables[0].DefaultView;
this.dgColorDate.DataSource = dvw;
this.dgColorDate.DataBind();

And I want to hide certain column and add some control to cell.
When I try to do it from PreRender event handler.

this.dgColorDate.Columns[(int)Lst.MDL_MFG_COLOR_ID].Visible = false;
this.dgColorDate.Columns[(int)Lst.Colors].HeaderText = "Colors";

It throws error. When I check it in debug mode, dgColorDate.Column.Count returns 0.
How can I solve this?

 

[Robby]

You need to do this after your dg is bound.