ASP.NET
How to: Add ImageButton Web Server Controls to a Web Forms Page
An ImageButton control allows you to present a picture as a clickable control.
 Note |
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| If you want to create an image with clickable regions, you can use the ImageMap control. |
To create a graphical button
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Type an <asp:ImageButton> element into the page.
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Set the button's ImageUrl property to point to an image file (for example, .gif or .jpg).
You can point to an image file anywhere using a URL or UNC path.
Security Note The URL associated with an ImageButton control can be tampered with by a malicious user. For more information, see How to: Protect Against Script Exploits in a Web Application by Applying HTML Encoding to Strings.