RibbonCommand was not found

I see the majority of WPF Ribbon examples out there use some code like

xmlns:r="clr-namespace:Microsoft.Windows.Controls.Ribbon;assembly=RibbonControlsLibrary"

I'm getting this error..."The type 'r:RibbonCommand' was not found. Verify that you are not missing an assembly reference and that all referenced ass开发者_开发百科emblies have been built."

Using VS 2010, .NET 4.0.

I'm trying to figure out how to add a button to the ribbon and execute code/command when it's clicked.

Thanks.

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If you are using the new Microsoft WPF Ribbon, the RibbonCommand type has been removed. The Command property is now an ICommand type.

To set the command on a RibbonButton, you can do the following:

<ribbon:RibbonButton Command="ApplicationCommands.Copy" />

or use any command that implements ICommand.

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You also can use ICommand to implement your own command.

This class should be in code behind.

public class MyCommand : ICommand
{
    public void Execute(object parameter)
    {
        string hello = parameter as string;
        MessageBox.Show(hello, "World");
    }

    public bool CanExecute(object parameter)
    {
        return true;
    }

    public event EventHandler CanExecuteChanged;
}

You need to have Resources for using this command.

<DockPanel.Resources>
    <local:MyCommand x:Key="mycmd"/>
</DockPanel.Resources>

You also need to modify your xaml element to call this command.

<ribbon:RibbonButton Command="{StaticResource mycmd}" CommandParameter="Hello, command" Label="Copy" LargeImageSource="Images/LargeIcon.png"/> 

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You also have to reference the assembly in the project itself.