Share Email Facebook Twitter LinkedIn TextBox.PromptText Property The prompt text for the text box.Namespace: Autodesk.Revit.UIAssembly: RevitAPIUI (in RevitAPIUI.dll) Version: 25.3.0.0 (25.3.0.0) Syntax C# public string PromptText { get; set; }Property ValueString RemarksPrompt text is displayed when the text box is empty and does not have keyboard focus. This text is displayed in italics. The default value is null. See AlsoReferenceTextBox ClassAutodesk.Revit.UI Namespace