Contextual Tab Binding to IsActive

[Erich]

I am trying to bind a contextual group to the IsActive property using a custom property of a UserControl. The contextual tab should only be shown after the user has selected a port from a dropdown list. I have tried each of the following with no success, but hopefully it gives you an idea of what I'm trying to do.

<telerik:RadRibbonView.ContextualGroups>
<telerik:RadRibbonContextualGroup x:Name="xCOM" IsActive="{Binding RelativeSource={RelativeSource Self}, Path=IsPortSelected}"/>
<telerik:RadRibbonContextualGroup x:Name="xCOM" IsActive="{Binding ElementName=_this, Path=IsPortSelected}"/>
<telerik:RadRibbonContextualGroup x:Name="xCOM" IsActive="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:MyRibbon}}, Path=IsPortSelected}"/>
<telerik:RadRibbonContextualGroup x:Name="xCOM" IsActive="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}, Path=IsPortSelected}"/>
</telerik:RadRibbonView.ContextualGroups>

Where IsPortSelected is the property in MyRibbon:

string _port = "";
public string Port
{
    get { return _port; }
    set
    {
        if (_port == value)
        {
            return;
        }
        _port = value;
    }
}

public bool IsPortSelected
{
    get
    {
        if (String.IsNullOrEmpty(_port))
        {
            return false;
        } else if (_port.Equals("Port")) {
            return false;
        }
        return true;
    }
    set { }
}

Is there something wrong with my binding statement? Or do I need to do something else in the code behind, such as implementing a PropertyChangedEventHandler (which I have tried with no success as well)?

[Pavel R. Pavlov]

Hi Erich,

You are on the right way to achieve your requirement. However, I think that you need to try to bind to your custom property like this:

<telerik:RadRibbonContextualGroup x:Name="CG" IsActive="{Binding RelativeSource={RelativeSource AncestorType=local:MyRibbon}, Path=IsPortSelected}" />

I achieved your requirement in the attached project. Please take a look at it and let me know if you need any further assistance.

Regards,
Pavel R. Pavlov
Telerik