Hello!

I'm building a GridView using code to add template fields, because
there is a random number of columns in result set from database. I'm
using a class with ITemplate interface for defining columns. I am
using a code which adds a checkbox for each column:

   public void InstantiateIn(System.Web.UI.Control container)
   {
       switch (templateType)
       {
           case DataControlRowType.DataRow:

               CheckBox cb = new CheckBox();
               cb.Enabled = true;
               cb.ID = columnName;

               cb.DataBinding += new
EventHandler(this.CB_DataBinding);

               container.Controls.Add(cb);
               break;

           default:

               break;
       }
   }

When I display the grid, everything looks fine, but when the page is
postback and GridView_RowUpdating event occurs, I'm unable to find any
checkbox using GridView.Rows[e.RowIndex].FindControl method. I am able
only to find empty TableCells.

I have no more ideas how to solve this problem, please help me.