Answer:   Yes, ASP.NET supports only one input web control: the TextBox. The TextBox behaves like a single-line or multiline edit control, depending on the value of its TextMode property.

Answer:   The following controls, which are based on the HTML INPUT element, are available on the HTML tab of the Toolbox:

Input (Button) control: INPUT type="button" element

Input (Checkbox) control: INPUT type="checkbox" element

Input (File) control: INPUT type="file" element

Input (Hidden) control: INPUT type="hidden" element

Input (Password) control: INPUT type="password" element

Input (Radio) control: INPUT type="radio" element

Input (Reset) control: INPUT type="reset" element

Input (Submit) control: INPUT type="submit" element

Input (Text) control: INPUT type="text" element

By default, HTML elements on a Web Forms page are not available to the server; they are treated as markup that is passed through to the browser. However, if you add an id attribute and the attribute runat="server", ASP.NET recognizes the element as a control on the page and you can program it with server-based code.