RadComboBox and CommandItemTemplate

[Hendrik Johns]

Hi There,

I have a RadCombobox that is placed on a CommandItemTemplate and in my SqlDataSource Selecting event there I need to get the SelectedValue from the RadCombobox. I have tried to use the FindControl function but I can't get it to work so I would be happy if you could tell me how this is done :)

Thanks
Hendrik Johns

[Princy]

Hello Hendrik,

Try the following code snippet to access the RadComboBox placed inside CommandItemTemplate.

C#:

protected void SqlDataSource2_Selecting(object sender, SqlDataSourceSelectingEventArgs e)

  {

      GridCommandItem cmditem = (GridCommandItem)RadGrid1.MasterTableView.GetItems(GridItemType.CommandItem)[0];

      RadComboBox combo = (RadComboBox)cmditem.FindControl("RadComboBox2"); // Accessing RadComboBox inside CommandItemTemplate


  }

Thanks,
Princy.

[Hendrik Johns]

Hi Princy,

Thanks that did the job :)

/Hendrik

[Hendrik Johns]

My next problem is now that on the RadComboBox I have a AutoPostback event that shoud rebind the Grid. This also works fine except that the RadComboBox looses it selected value.

PS. I have tried to set the AllowCustomText to True, but as soon as I call the Rebind function it is gone

Cheers,

Hendrik Johns

[Princy]

Hello Hendrik,

One solution would be in that AutoPostBack event store the text of RadComboBox in a HiddenField. Then in PreRender event reset the text of RadComboBox by using that HiddenField value. Check out the following code snippet.

ASPX:

<asp:HiddenField ID="HiddenField1" runat="server" />

C#:

protected void RadComboBox2_SelectedIndexChanged(object o, RadComboBoxSelectedIndexChangedEventArgs e)
    {
        RadComboBox combo = (RadComboBox)o;
        HiddenField1.Value = combo.Text;
        this.RadGrid1.Rebind();
    }

 protected void RadGrid1_PreRender(object sender, EventArgs e)
    {
        GridCommandItem cmdItem = (GridCommandItem)RadGrid1.MasterTableView.GetItems(GridItemType.CommandItem)[0];
        RadComboBox combo = (RadComboBox)cmdItem.FindControl("RadComboBox2");
        combo.Text = HiddenField1.Value;
    }

Thanks,
Princy.

[Shumaila Imran]

I've a Checkbox inside CommandItemTemplate and when I try to access the Checkbox in the ObjectDataSource Selecting event, I get the following error:

Index was outside the bounds of the array

protected void ObjDataSourceTests_Selecting(object sender, ObjectDataSourceSelectingEventArgs e)
       {

           GridCommandItem cmditem = (GridCommandItem)RadGridTests.MasterTableView.GetItems(GridItemType.CommandItem)[0];
           CheckBox chkTestsFilter = (CheckBox)cmditem.FindControl("chkTestsFilter");

           e.InputParameters["getExpired"] = chkTestsFilter.Checked;
       }

Could anyone please point out the reason of this error ?