TextBox.TagKey Property
.NET Framework (current version)
Gets the HTML tag for the text box control. This property is protected.
Assembly: System.Web (in System.Web.dll)
Property Value
Type: System.Web.UI.HtmlTextWriterTagHtmlTextWriterTag.Textarea if the text box is multiline; otherwise, Input.
The following code example demonstrates how to use the TagKey property to create a custom text box.
Security Note
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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. |
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB" %> <%@ Page Language="VB" AutoEventWireup="True" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head> <title>Custom TextBox - TagKey - VB.NET Example</title> </head> <body> <form id="Form1" method="post" runat="server"> <h3>Custom TextBox - TagKey - VB.NET Example</h3> <aspSample:CustomTextBoxTagKey id="TextBox1" runat="server">Hello World! </aspSample:CustomTextBoxTagKey> </form> </body> </html>
Imports System.Web Imports System.Security.Permissions Namespace Samples.AspNet.VB.Controls <AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _ Public NotInheritable Class CustomTextBoxTagKey Inherits System.Web.UI.WebControls.TextBox Protected Overrides ReadOnly Property TagKey() As System.Web.UI.HtmlTextWriterTag Get ' If the TextMode is MultiLine, return a Textarea tag, else return an Input tag. If Me.TextMode = System.Web.UI.WebControls.TextBoxMode.MultiLine Then Return System.Web.UI.HtmlTextWriterTag.Textarea Else Return System.Web.UI.HtmlTextWriterTag.Input End If End Get End Property End Class End Namespace
.NET Framework
Available since 1.1
Available since 1.1
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