AttributeCollection.Add Method (String, String)
.NET Framework (current version)
Adds an attribute to a server control's AttributeCollection object.
Assembly: System.Web (in System.Web.dll)
If the string in the value parameter contains an ampersand (&), the character is automatically encoded. The resulting HTML representation is "&".
The following example shows how to use the Add method to programmatically add an attribute to an ASP.NET server control AttributeCollection object.
<%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> protected void SubmitBtn_Click(object sender, EventArgs e) { firstselect.Attributes.Add("Multiple", "True"); } </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>AttributeCollection Example</title> </head> <body> <form id="form1" runat="server"> <div> Make a selection: <select id="firstselect" runat="server"> <option>This</option> <option>That</option> <option>Other</option> </select> <br/><br/> <input type="submit" id="submitbtn" value="modify attribute" onserverclick="SubmitBtn_Click" runat="server"/> </div> </form> </body> </html>
.NET Framework
Available since 1.1
Available since 1.1
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