How to solve "RadAsyncUpload does not have permission to write files in the TemporaryFolder. ..."

Question

My WebApp(asp.net WebForm C#) is working properly but when i uploaded it, telerik's radgrid is working properly but RadAsyncUpload is giving me following error.

RadAsyncUpload does not have permission to write files in the TemporaryFolder. In Medium Trust scenarios, the TemporaryFolder should be a subfolder of the Application Path.

i found that

UseApplicationPoolImpersonation and impersonate="true" in the web.config

will solve the problem but under what tag i should add it? by the way i am new to IIS7.

Answer 1

For me the issue was resolved after going into IIS folder where the site files are located, and ensuring that the folder has "Modify" and "Full Control" permissions for Users.