AttributeCollection.Item Property (String)
.NET Framework (current version)
Gets or sets a specified attribute value for a server control.
Assembly: System.Web (in System.Web.dll)
Parameters
- key
-
Type:
System.String
The location of the attribute in the collection.
You can add an attribute to or retrieve one from an ASP.NET server control that uses this property.
The following example shows how to set a dynamic HTML onblur attribute to run an ECMAScript (JavaScript) command when a TextBox Web server control loses focus.
<!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 runat="server"> <title>Attributes Property of a Web Control</title> <script language="vb" runat="server"> Sub Page_Load(sender As Object, e As EventArgs) TextBox1.Attributes("onblur")="javascript:alert('Hello! Focus lost from text box!!');" End Sub </script> </head> <body> <h3>Attributes Property of a Web Control</h3> <form id="form1" runat="server"> <asp:TextBox id="TextBox1" columns="54" Text="Click here and then tab out of this text box" runat="server"/> </form> </body> </html>
.NET Framework
Available since 1.1
Available since 1.1
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