[Solved] radCombobox.Items always showing a count of 0

[Joshua Wise]

Hi all,

I'm trying to build a user control that has a radCombox on it.  One of the features of the combobox is that you can list the ID's of child radcomboboxes that will clear when the ItemsRequested event fires on the parent box.  However, when I run the following code to get the child radComboBox, the Item.count is always 0, and the items in the box never clear, even when I clearly see items in the child radComboBox.

 

  private void ClearChildren()
    {
        RelationalComboBox Child;

        string[] ChildrenList = _Children.Split(_ChildrenDelimeter.ToCharArray());

        for (int i = 0; i < ChildrenList.Length; i++)
        {
            Child = (RelationalComboBox)this.Parent.FindControl(ChildrenList[i]);
            Child.radComboBox.Text = " ";
            Child.radComboBox.ClearSelection();

            do
            {
                if (Child.radComboBox.Items.Count > 0)
                {
                    Child.radComboBox.Items[0].Remove();
                }
            } while (Child.radComboBox.Items.Count > 0);



        }
    }

Any ideas how I can get the other radComboBox control and clear it's items?  

Thanks,
Joshua Wise

Aramark

[sitefinitysteve]

So this is called from ItemsRequested?

[Simon]

Hi Joshua,

In the ItemsRequested event handler only the initiator RadComboBox's state (mainly the Text and SelectedValue properties) is available on the server. Additionally any changes to other controls or to the RC do not have effect except the Items added to the initiator RCB.

So, clearing other RCBs in the ItemsRequested event handler will not work. Please consider doing so on the client in the client-side ItemsRequested event handler.

Sincerely yours,
Simon
the Telerik team

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