Telerik Radgrid How to retrieve textbox values from dynamically generated RadGrid columns?

[Sridhar]

I am dynamically creating a RadGrid and adding GridTemplateColumns to it. Those columns have textbox in them.
After binding datatable to the grid, after user makes changes to the textboxes and on clicking save button, I would like to access the textbox values. But I am stuck at getting hold of the textbox instance. I couldn't even get hold of GridItems!
To add more complexity, my RadGrid is in a UserControl, which is in a (multi)view.
Since my control is in view, it's Page_Init is called more than once for each action that involves this view.

Once the gridstructure is defined, it has no need to change, but I think I should be calling it on Page Init or Load every time..

I have column paging instead of row paging, so there is custom code to handle that.
I would like to get some advice on the best place to call NeedDataSource, DefineGridStructure and where to get Postback values.
I have read this article, but it has sparse information for my need. http://www.telerik.com/help/aspnet-ajax/grid-programmatic-creation.html
Heres my code.

protected void Page_Init(object sender, EventArgs e)

    {

        DefineGridStructure();


    }

      protected void Page_Load(object sender, EventArgs e)
      {
          if (RadGrid1 != null && RadGrid1.Items.Count > 0)
          {
              string strtxt = ((TextBox)RadGrid1.Items[1]["ProductGroup1"].Controls[0]).Text;//For starters, load one control and check it's state
          }
      }

    private void DefineGridStructure()

    {

        RadGrid1 = new RadGrid();

        RadGrid1.AutoGenerateColumns = false;

        RadGrid1.ShowHeader = true;

        RadGrid1.NeedDataSource += RadGrid1_NeedDataSource;

        foreach(GridColumn qtyColumn in BuildGridQtyColumns(PaxColumnCount))

        {

            RadGrid1.MasterTableView.Columns.Add(qtyColumn);

        }

        //Add grid to page

        phRadGrid.Controls.Add(RadGrid1);

    }

    private List<GridColumn> BuildGridQtyColumns(int count)

    {

        List<GridColumn> qtyColumns = new List<GridColumn>();

        for (int i = 1; i <= count; i++)

        {

            string qtyColumnName = string.Format("ProductGroup{0}", i);

            GridTemplateColumn qtyColumn = new GridTemplateColumn();

            qtyColumn.ItemTemplate = new GridNumberTemplate(qtyColumnName);//Creates a textbox control

            qtyColumn.UniqueName = qtyColumnName;

            qtyColumn.HeaderText = "Qty";

            qtyColumn.HeaderStyle.Width = Unit.Pixel(60);

            qtyColumn.HeaderStyle.HorizontalAlign = HorizontalAlign.Center;

 

            qtyColumns.Add(qtyColumn);

        }

        return qtyColumns;

    }

[Shinu]

Hello,

Try the following code.
C#:

void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
{
    if (e.Item is GridDataItem)
    {
        GridDataItem item = (GridDataItem)e.Item;
        TextBox txtbx = (TextBox)item.FindControl("TextBox1");
    }
}

-Shinu.

[Sridhar]

My grid is data bound on every 'postback'.
ItemDataBound is called when the dataitem is bound to control.

I am looking for the event method that lets me get values in the grid's textboxes once viewstate is restored. It can be done in OnLoad. I think I am at the verge of finding a solution.