The process of adding a DropDownList Web server control to a page consists primarily of setting options that specify how items should be displayed and whether users can select multiple items.
To add a DropDownList Web server control to a Web Forms page
From the Standard tab of the Toolbox, drag a DropDownList control onto the page.
Adding items to the control is a separate process that depends on whether you will display a static list in the control or a list that is generated dynamically at run time. For details, see How to: Add Items in List Web Server Controls.
See Also