Group header linkbutton

[Paula]

I have created a grid and it has group header controls that I create in the prerender event so that it will not be reset during postback.  I originally did it in the itemdatabound but it disappears during postback and since I need to access a dataitem value this was my only option but my problem now is that I cannot add the onclick handler.  Anyone have any iteas how I can do this? 

My group header current looks like ( Field_Value_Label_control  Add_New_Link_Button ) or as an example it would be (Computers  Add New Category) both of which have text from an sql database.

Any help would be appreciated.

[Princy]

Hello Paula,

One suggestion is to create the GroupHeader control and attach onclick event in both ItemCreated and ItemDataBound event. Sample code is given below.

C#:

protected void RadGrid1_ItemDataBound1(object sender, GridItemEventArgs e)
    {
         if (e.Item is GridGroupHeaderItem)
          {
               GridGroupHeaderItem item = (GridGroupHeaderItem)e.Item;
               LinkButton linkBtn = new LinkButton();
               item.DataCell.Controls.Add(linkBtn);
               linkBtn.ID = "LinkButton1";
               linkBtn.Text = item.DataCell.Text;
               linkBtn.Click += new EventHandler(linkBtn_Click);
           }
    }

  protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
    {
        if (e.Item is GridGroupHeaderItem)
        {
            GridGroupHeaderItem item = (GridGroupHeaderItem)e.Item;
            LinkButton linkBtn = new LinkButton();
            item.DataCell.Controls.Add(linkBtn);
            linkBtn.ID = "LinkButton1";
            linkBtn.Click += new EventHandler(linkBtn_Click);
        }
    }

Thanks,
Princy.

[Paula]

Unfortunately this doesn't work, all the values are lost in postback which is why it has to be in the prerender event. 

[Paula]

To get around this I'm just going to use nested views.  I should have did this to begin with.

Thanks for trying to help.

[Enigma]

I had a very similar problem where I wanted to add a LinkButton to the group header that would enter edit mode for all items in that group. I was/am using code very similar to that suggested by Princy. After much debugging, playing and searching I found the MasterTableView.GroupLoadMode property, by setting this property to 'Client' all by problems went the way of the dinosaurs.