how to create master page in .net 4.5?

http://www.asp.net/web-forms/overview/older-versions-getting-started/master-pages/creating-a-site-wide-layout-using-master-pages-cs

you can visit this page for detailed information about master page

Hi Rajalakshmi,

http://msdn.microsoft.com/en-us/library/vstudio/ehszf8ax%28v=vs.100%29.aspx

The above link helps you to create sample master page and all the functionality. Even you can download the sample project from the above link itself.

Thanks,
Ramchand