Telerik.WinControls.UI.RadComboBoxItem depricated

[David]

Hi,
I'm currently upgrading a solution from telerik controls from 2010 to telerik controls from 2013. 
In our solution we have a class inheriting from RadComboBoxItem.
This control appears to have been deprecated. What control can I inherit from in telerik 2013 to achieve the same behaviour? Thanks.
Dave

[George]

Hello David,

Thank you for writing.

You need to inherit from RadDropDownListElement and RadDropDownList. A simple implementation would look like this:

public class RadCustomDropDownList : RadDropDownList
{
    protected override RadDropDownListElement CreateDropDownListElement()
    {
        return new RadCustomDropDownItem();
    }

    public override string ThemeClassName
    {
        get { return typeof(RadDropDownList).FullName; }
        set { }
    }
}

public class RadCustomDropDownItem : RadDropDownListElement
{
    public RadCustomDropDownItem()
        : base()
    {
    }

    public RadCustomDropDownItem(object owner)
        :base(owner)
    {
    }

    public RadCustomDropDownItem(string text)
        : this()
    {
        this.Text = text;
    }

    public RadCustomDropDownItem(string text, string tag)
        : this(text)
    {
        this.Tag = tag;
    }

    protected override Type ThemeEffectiveType
    {
        get { return typeof(RadDropDownListElement); }
    }
}

Additionally you can find a more advanced implementation in our Code Library on this address.

I hope this helps.

Regards,
George
Telerik