What web framework uses "javascript:__doPostBack()"

I've seen this al开发者_JS百科l over the web

javascript:__doPostBack('ctl00$ContentPlaceHolder1$lnk2','')

Checking headers of the last place I saw it didn't reveal a server side language.

What server side language and/or framework encourages this style of link?

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ASP.NET server controls that post to the current page generate those kind of links.

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Microsoft's ASP.NET

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Microsoft's Asp.net Web forms frameworks uses this type of convention to make post back to page.