fyiReporting.RdlDesign.RdlDesigner.menuViewPreview_Click C# (CSharp) Method

        private void menuViewPreview_Click(object sender, System.EventArgs e)
        {
            MDIChild mc = this.ActiveMdiChild as MDIChild;
            if (mc == null)
                return;
            mc.RdlEditor.DesignTab = DesignTabs.Preview;
        }