public override bool Execute(object param, object data)
{
MainForm form = param as MainForm;
if (form == null)
{
return(false);
}
foreach (DockContent item in form.DockPanel.Contents)
{
if (item is DesignForm)
{
item.Activate();
return(true);
}
}
DesignForm role = new DesignForm(form);
role.Show(form.DockPanel, DockState.Document);
role.Activate();
return(true);
}