Binding ContextualGroups IsActive to MainWindow public property

[Julian]

I have a MainWindow with various tabs. One of them is a Contextual Tab. I want to set the Contextual Tab's IsActive to the boolean IsFormAgentVisible value which is a public property in my MainWindow.xaml.cs

I'm entirely new to WPF so I'm not sure a normal public property is the best way to go here. When I click on a ribbon button to launch a specific Window I set the IsFormAgentVisible to true. At this point I want to the contextualGroupFormAgents ContextualGroup below to be updated so that IsActive is now true. Hopefully this is a pretty simple task to perform. Thanks.


Contextual Tab code from the MainWindow.xaml:
             <telerik:RadRibbonView.ContextualGroups>
                <telerik:RadRibbonContextualGroup x:Name="contextualGroupFormAgents" />
            </telerik:RadRibbonView.ContextualGroups>

            <telerik:RadRibbonTab Header="Form Agents" ContextualGroupName="contextualGroupFormAgents">
                <telerik:RadRibbonGroup Header="Primary Details">
                    <telerik:RadRibbonDropDownButton Content="Change Primary Details" Click="ChangePrimaryDetailsDropDown_Click" />
                    <telerik:RadRibbonButton Content="Obsolete Forms"/>
                </telerik:RadRibbonGroup>
                <telerik:RadRibbonGroup Header="Process Status">
                    <telerik:RadRibbonDropDownButton Content="Update Process Status" Click="UpdateProcessStatusDropDown_Click" />
                </telerik:RadRibbonGroup>
                <telerik:RadRibbonGroup Header="Memos">
                    <telerik:RadRibbonButton Content="Add Memos"/>
                </telerik:RadRibbonGroup>
                <telerik:RadRibbonGroup Header="Submittal Details">
                    <telerik:RadRibbonDropDownButton Content="Change Submittals" Click="ChangeSubmittalsDropDown_Click"/>
                </telerik:RadRibbonGroup>
            </telerik:RadRibbonTab>

MainWindow.xaml.cs public property:
          public bool IsFormAgentVisible { get; set; }        

[Martin Ivanov]

Hello Julian,

Thank you for the code snippet.

If you are not using the MVVM pattern in your application I recommend you instead of a property in the code-behind of the MainWindow to change directly the IsActive property of the contextual group using its x:Name.

private void activateGroupBtn_Click(object sender, RoutedEventArgs e)
{
    this.contextualGroupFormAgents.IsActive = true;
}

This way you won't need to create an additional property. 

If you are using MVVM you can define the boolean IsFormAgentVisible property in your MainViewModel and bind it to the contextual group's IsActive property. Here is a simple example:

public class ExampleViewModel : ViewModelBase
{
    private bool isFormAgentVisible;
    public bool IsFormAgentVisible
    {
        get { return this.isFormAgentVisible; }
        set
        {
            this.isFormAgentVisible = value;
            OnPropertyChanged("IsFormAgentVisible");
        }
    }
    ...
}

<telerik:RadRibbonContextualGroup x:Name="contextualGroupFormAgents" IsActive="{Binding IsFormAgentVisible}" />

As a side note, in order for the UI to listen for dynamic changes in its bound properties, those properties should implement the INotifyPropertyChanged interface.

Please let me know if this helps.

Regards,
Martin
Telerik

 

 

[Julian]

Thanks Martin. We are not currently using MVVM but may convert the app to MVVM later (timing constraints are limiting us at this point) so thanks for given samples of both. I'll try setting IsActive in the RibbonButtonClick to launch my form. That should should work. I'll let you know. Thank you again

[Julian]

Martin that worked out great.

Thanks!