Make Changes to a TFS Work Item as a specific user

Question

I am working on creating a Web application, which the users in my team will use to make changes to TFS Work Items. I am using TFS API for this..

In order to access

Answer 1

You need to use the 'make requests on behalf of others' functionality. You can impersonate another user by following:

public void Impersonation(Uri serverUri,string userToImpersonate)
{
    // Read out the identity of the user we want to impersonate
    TeamFoundationIdentity identity = ims.ReadIdentity(IdentitySearchFactor.AccountName, 
        userToImpersonate,
        MembershipQuery.None, 
        ReadIdentityOptions.None);

    tfs_impersonated = new TfsTeamProjectCollection(serverUri, identity.Descriptor);

    GetAuthenticatedIdentity(tfs_impersonated);

    // Use this tfs_impersonated object to communicate to TFS as the other users.
}

And make sure your account running the website has the permission to "make requests on behalf of others":

http://www.codeproject.com/Articles/104019/TFS-API-Part-TFS-Impersonation