Google Way of GIF :)

Ggmail uses _GM_EmoticonHandler javascript function to generate animated images from PNG files.

PNG File:

A potentially dangerous Request.Form value was detected from the client

If you get “A potentially dangerous Request.Form value was detected from the client” when you use Rich Text Editor or TextArea in your web projects. You can get this error if any html code is submitted from your form.

You can bypass this error with adding a parameter inside your asp.net aspx file

ValidateRequest=”false” inside <%@ Page element.

For example your page directive is

<%@ Page Language=”C#” AutoEventWireup=”true” CodeFile=”Default.aspx.cs” Inherits=”Test._Default” %>

Then you can use

<%@ Page Language=”C#” AutoEventWireup=”true” CodeFile=”Default.aspx.cs” Inherits=”Test._Default” ValidateRequest=”false” %> like that.