Log in to like this post! How do I add a control to the WebDialogWindow through code? [Infragistics] Tony Lombardo / Saturday, February 28, 2009 You can add controls dynamically to the WebDialogWindow by adding to the ContentPane.Controls collection. //Create a textbox TextBox tb = new TextBox(); tb.ID = "tb1"; tb.Text = "text"; //Add the textbox to the DialogWindow's ContentPane Control's collection this.WebDialogWindow1.ContentPane.Controls.Add(tb);