Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
How to use i frame in asp.net with dynamic height
set runat="server" id="ifWidth" in iframe tags. and then write the coding in server side in bellow format ifWidth.Attribute.add("style","height:350;");