ASP.NET in a Nutshell, Second Edition

This class provides a single-selection drop-down list control. Various properties, such as BorderColor, BorderStyle, and BorderWidth, allow you to configure its appearance. To add items programmatically, use the Items collection or use the DataBind( ) method to bind to a data source (such as a System.Data.DataTable or a System.Array).

Use the SelectedIndex property to determine the selected item or the SelectedItem property, which returns a ListItem object that specifies the associated text.

public class DropDownList : ListControl, System.Web.UI.IPostBackDataHandler { // Public Constructors public DropDownList( ); // Public Instance Properties public override Color BorderColor{set; get; } // overrides WebControl public override BorderStyle BorderStyle{set; get; } // overrides WebControl public override Unit BorderWidth{set; get; } // overrides WebControl public override int SelectedIndex{set; get; } // overrides ListControl public override string ToolTip{set; get; } // overrides WebControl // Protected Instance Methods protected override void AddAttributesToRender(System.Web.UI.HtmlTextWriter writer);// overrides WebControl protected override ControlCollection CreateControlCollection( ); // overrides System.Web.UI.Control protected override void RenderContents(System.Web.UI.HtmlTextWriter writer); // overrides WebControl }

Hierarchy

System.Object System.Web.UI.Control(System.ComponentModel.IComponent, System.IDisposable, System.Web.UI.IParserAccessor, System.Web.UI.IDataBindingsAccessor) WebControl(System.Web.UI.IAttributeAccessor) ListControl DropDownList(System.Web.UI.IPostBackDataHandler)