[Solved] Using RadCombobox in RadGrid

[314]

I would like to add two radcombobox in the RadGrid to do the Edit and Add function, when I click the first radcomobox, the second radcomobox will bind other data depend on the first radcomobox input value. I attempt to try


  Protected Sub RadComboBox1_SelectedIndexChanged(ByVal o As Object, ByVal e As Telerik.Web.UI.RadComboBoxSelectedIndexChangedEventArgs) Handles RadComboBox1.SelectedIndexChanged
        Me.RadComboBox2.DataSource = "SqlDataSource3"
        Me.RadComboBox2.DataBind()
    End Sub

But nothing happen when the system after autopost
How can I do?

[Shinu]

Hi,

Go through the following online demo.
http://www.telerik.com/DEMOS/ASPNET/Prometheus/Grid/Examples/Programming/AccessingCellsAndRows/DefaultCS.aspx

Thanks
Shinu.

[314]

For the example, it use the dropdownlist, if I change to RadCombobox, that's something error on it.
I change to 
Dim list As DropDownList = CType(CType(e.Item, GridEditableItem)("ddlOrderID").Controls(0), DropDownList)

to 
Dim list As RadCombobox= CType(CType(e.Item, GridEditableItem)("ddlOrderID").Controls(0), RadCombobox)

And the error is Error 
Method 'Private Sub list_SelectedIndexChanged(sender As Object, e As System.EventArgs)' does not have the same signature as delegate 'Delegate Sub RadComboBoxSelectedIndexChangedEventHandler(o As Object, e As Web.UI.RadComboBoxSelectedIndexChangedEventArgs)

How can I fix it? As I am a dummy in ASP.NET