Re: ReportViewer, VS2005 and SSRS 2005

try this - works for me 

... 
ServerReport report = ReportViewer1.ServerReport; 
report.ReportServerCredentials = new MyReportServerCredentials(); 
... 


class MyReportServerCredentials : IReportServerCredentials
{

    public MyReportServerCredentials()
    {
    }

    public System.Security.Principal.WindowsIdentity ImpersonationUser
    {
        get
        {
            return null;  // Use default identity.
        }
    }

    public System.Net.ICredentials NetworkCredentials
    {
        get
        {
            return new System.Net.NetworkCredential("user",
"pass", "domain");
        }
    }

    public bool GetFormsCredentials(out System.Net.Cookie authCookie,
            out string user, out string password, out string authority)
        {
            authCookie = null;
            user = password = authority = null;
            return false;  // Not use forms credentials to authenticate.
        }
    }