Gets or sets the maximum number of characters allowed in the text box.
Assembly: System.Web (in System.Web.dll)
Use the TextBox control.property to limit the number of characters that can be entered in the
This property is applicable only when the TextMode property is set to TextBoxMode.SingleLine or TextBoxMode.Password.
A Visual Studio Web site project with source code is available to accompany this topic: Download.
The following code example demonstrates how to use the TextBox control to get user input. When the user clicks the Add button, the sum of the values entered in the text boxes is displayed.
This example has a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview.
Available since 1.1