I took sample code to implement the IReportServerCredentials to send the login information to retrieve a report remotely but for some reason the implementation is error prone. Imports System.Net.NetworkCredential Imports System.Net Imports Microsoft.Reporting.WebForms Imports System.Security.Principal Partial Class _Default Inherits System.Web.UI.Page Protected Sub Page_Init(ByVal sender As Object, _ ByVal e As System.EventArgs) _ Handles Me.Init ReportViewer1.ServerReport.ReportServerCredentials = _ New ReportServerNetworkCredentials End Sub End Class <Serializable()> _ Public NotInheritable Class ReportServerNetworkCredentials Implements IReportServerCredentials #Region "IReportServerCredentials Members" ''' <summary> ''' Specifies the user to impersonate when connecting to a report server. ''' </summary> ''' <value></value> ''' <returns>A WindowsIdentity object representing the user to impersonate.</returns> Public ReadOnly Property ImpersonationUser() As WindowsIdentity Implements IReportServerCredentials.ImpersonationUser Get Return Nothing End Get End Property ''' <summary> ''' Returns network credentials to be used for authentication with the report server. ''' </summary> ''' <value></value> ''' <returns>A NetworkCredentials object.</returns> Public ReadOnly Property NetworkCredentials() As System.Net.ICredentials Implements IReportServerCredentials.NetworkCredentials Get 'User name Dim userName As String = _ ConfigurationManager.AppSettings("MyReportViewerUser") If (String.IsNullOrEmpty(userName)) Then Throw New Exception("Missing user name from web.config file") End If 'Password Dim password As String = _ ConfigurationManager.AppSettings("MyReportViewerPassword") If (String.IsNullOrEmpty(password)) Then Throw New Exception("Missing password from web.config file") End If 'Domain Dim domain As String = _ ConfigurationManager.AppSettings("MyReportViewerDomain") If (String.IsNullOrEmpty(domain)) Then Throw New Exception("Missing domain from web.config file") End If Return New System.Net.NetworkCredential(userName, password, domain) End Get End Property ''' <summary> ''' Provides forms authentication to be used to connect to the report server. ''' </summary> ''' <param name="authCookie">A Report Server authentication cookie.</param> ''' <param name="userName">The name of the user.</param> ''' <param name="password">The password of the user.</param> ''' <param name="authority">The authority to use when authenticating the user, such as a Microsoft Windows domain.</param> ''' <returns></returns> Public Function GetFormsCredentials(ByVal authCookie As System.Net.Cookie, ByVal userName As String, ByVal password As String, ByVal authority As String) As Boolean _ Implements IReportServerCredentials.GetFormsCredentials authCookie = Nothing userName = Nothing password = Nothing authority = Nothing Return False End Function #End Region End Class in the class declaration there is an error line for <pre><code><span> </span><span><span style="color:#2b91af">Implements</span></span><span> </span><span><span style="color:#2b91af">IReportServerCredentials</span></span><span> <br/></span></code> and it says class must implement function getformscredentials....for interface microsoft.reporting.webforms.ireportservercredentials... Now I have the function implemented so not sure what the problem is.

Your method signature for GetFormsCredentials doesn't match the interface. Here's the autogenerated version in VB (note the ByRef instead of ByVal): Public Function GetFormsCredentials(ByRef authCookie As System.Net.Cookie, ByRef userName As String, ByRef password As String, ByRef authority As String) As Boolean Implements Microsoft.Reporting.WebForms.IReportServerCredentials.GetFormsCredentials End FunctionCephas Lin This posting is provided "AS IS" with no warranties.