public DataTable GetOleDbSchemaTable(Guid schema, object[] restrictions)   // MDAC 61846
        {
            OleDbConnection.ExecutePermission.Demand();

            IntPtr hscp;

            Bid.ScopeEnter(out hscp, "<oledb.OleDbConnection.GetOleDbSchemaTable|API> %d#, schema=%ls, restrictions\n", ObjectID, schema);
            try {
                CheckStateOpen(ADP.GetOleDbSchemaTable);
                OleDbConnectionInternal connection = GetOpenConnection();

                if (OleDbSchemaGuid.DbInfoLiterals == schema)
                {
                    if ((null == restrictions) || (0 == restrictions.Length))
                    {
                        return(connection.BuildInfoLiterals());
                    }
                    throw ODB.InvalidRestrictionsDbInfoLiteral("restrictions");
                }
                else if (OleDbSchemaGuid.SchemaGuids == schema)
                {
                    if ((null == restrictions) || (0 == restrictions.Length))
                    {
                        return(connection.BuildSchemaGuids());
                    }
                    throw ODB.InvalidRestrictionsSchemaGuids("restrictions");
                }
                else if (OleDbSchemaGuid.DbInfoKeywords == schema)
                {
                    if ((null == restrictions) || (0 == restrictions.Length))
                    {
                        return(connection.BuildInfoKeywords());
                    }
                    throw ODB.InvalidRestrictionsDbInfoKeywords("restrictions");
                }

                if (connection.SupportSchemaRowset(schema))
                {
                    return(connection.GetSchemaRowset(schema, restrictions));
                }
                else
                {
                    using (IDBSchemaRowsetWrapper wrapper = connection.IDBSchemaRowset()) {
                        if (null == wrapper.Value)
                        {
                            throw ODB.SchemaRowsetsNotSupported(Provider); // MDAC 72689
                        }
                    }
                    throw ODB.NotSupportedSchemaTable(schema, this); // MDAC 63279
                }
            }
            finally {
                Bid.ScopeLeave(ref hscp);
            }
        }
示例#2
0
        public DataTable GetOleDbSchemaTable(Guid schema, object[] restrictions)
        {
            DataTable table;
            IntPtr    ptr;

            ExecutePermission.Demand();
            Bid.ScopeEnter(out ptr, "<oledb.OleDbConnection.GetOleDbSchemaTable|API> %d#, schema=%ls, restrictions\n", this.ObjectID, schema);
            try
            {
                this.CheckStateOpen("GetOleDbSchemaTable");
                OleDbConnectionInternal openConnection = this.GetOpenConnection();
                if (OleDbSchemaGuid.DbInfoLiterals == schema)
                {
                    if ((restrictions != null) && (restrictions.Length != 0))
                    {
                        throw ODB.InvalidRestrictionsDbInfoLiteral("restrictions");
                    }
                    return(openConnection.BuildInfoLiterals());
                }
                if (OleDbSchemaGuid.SchemaGuids == schema)
                {
                    if ((restrictions != null) && (restrictions.Length != 0))
                    {
                        throw ODB.InvalidRestrictionsSchemaGuids("restrictions");
                    }
                    return(openConnection.BuildSchemaGuids());
                }
                if (OleDbSchemaGuid.DbInfoKeywords == schema)
                {
                    if ((restrictions != null) && (restrictions.Length != 0))
                    {
                        throw ODB.InvalidRestrictionsDbInfoKeywords("restrictions");
                    }
                    return(openConnection.BuildInfoKeywords());
                }
                if (openConnection.SupportSchemaRowset(schema))
                {
                    return(openConnection.GetSchemaRowset(schema, restrictions));
                }
                using (IDBSchemaRowsetWrapper wrapper = openConnection.IDBSchemaRowset())
                {
                    if (wrapper.Value == null)
                    {
                        throw ODB.SchemaRowsetsNotSupported(this.Provider);
                    }
                }
                throw ODB.NotSupportedSchemaTable(schema, this);
            }
            finally
            {
                Bid.ScopeLeave(ref ptr);
            }
            return(table);
        }
示例#3
0
        public DataTable GetOleDbSchemaTable(Guid schema, object[] restrictions)
        {
            CheckStateOpen(ADP.GetOleDbSchemaTable);
            OleDbConnectionInternal connection = GetOpenConnection();

            if (OleDbSchemaGuid.DbInfoLiterals == schema)
            {
                if ((null == restrictions) || (0 == restrictions.Length))
                {
                    return(connection.BuildInfoLiterals());
                }
                throw ODB.InvalidRestrictionsDbInfoLiteral("restrictions");
            }
            else if (OleDbSchemaGuid.SchemaGuids == schema)
            {
                if ((null == restrictions) || (0 == restrictions.Length))
                {
                    return(connection.BuildSchemaGuids());
                }
                throw ODB.InvalidRestrictionsSchemaGuids("restrictions");
            }
            else if (OleDbSchemaGuid.DbInfoKeywords == schema)
            {
                if ((null == restrictions) || (0 == restrictions.Length))
                {
                    return(connection.BuildInfoKeywords());
                }
                throw ODB.InvalidRestrictionsDbInfoKeywords("restrictions");
            }

            if (connection.SupportSchemaRowset(schema))
            {
                return(connection.GetSchemaRowset(schema, restrictions));
            }
            else
            {
                using (IDBSchemaRowsetWrapper wrapper = connection.IDBSchemaRowset())
                {
                    if (null == wrapper.Value)
                    {
                        throw ODB.SchemaRowsetsNotSupported(Provider);
                    }
                }
                throw ODB.NotSupportedSchemaTable(schema, this);
            }
        }