WDE Development ToolbarDialerRegion

Hi all,
I am quite new to genesys wde development. I have already created my custom views see below.
I need to put a phone number into the dialer box of wde.
I am unable to do so.
I tried a count of (“ToolbarDialerRegion”), I get 0 as result.

Can anyone help me please?

public void Initialize()
{
Int32 viewcount = viewManager.ViewsByRegionName[“ToolbarWorkplaceRegion”].Count;

        container.RegisterType<IMyCustom, MyCustom>();
        container.RegisterType<IMyCustomModel, MyCustomModel>();
        viewcount--;
        viewManager.ViewsByRegionName["ToolbarWorkplaceRegion"].Insert((viewcount+1), new ViewActivator()
        {
            ViewType = typeof(IMyCustom),
            ViewName = "MyCustom"
        });

        container.RegisterType<IMyTCustom, MyTCustom>();
        container.RegisterType<IMyTCustomModel, MyTCustomModel>();

        viewManager.ViewsByRegionName["ToolbarWorkplaceRegion"].Insert((viewcount+1), new ViewActivator()
        {
            ViewType = typeof(IMyTCustom),
            ViewName = "MyTCustom"
        });


        string va = viewManager.ViewsByRegionName["ToolbarDialerRegion"].Count.ToString();
        MessageBox.Show(va);

}