System.NotSupportedException: A query parameter cannot be of type 'System.Object'. at System.Data.Linq.SqlClient.SqlTypeSystem.ProviderBase.InitializeParameter(ProviderType type, DbParameter parameter, Object value) at System.Data.Linq.SqlClient.SqlProvider.AssignParameters(DbCommand cmd, ReadOnlyCollection`1 parms, Object[] userArguments, Object lastResult) at System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult) at System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries) at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) at System.Data.Linq.DataContext.ExecuteQuery[TResult](String query, Object[] parameters) at LV.HCS.SqlMembership.Provider.GetLogin(String Schema, String SessionID) at LV.HCS.Security.Account.CheckSession(CheckLoginRequest request) at LV.HCS.Security.LogoutUser.Page_Load(Object sender, EventArgs e)