Esempio n. 1
0
        public DataTable GetElements()
        {
            DataTable dataTable = new DataTable("MSDAENUM");

            dataTable.Locale = CultureInfo.InvariantCulture;
            OleDbDataReader dataReader = GetRootEnumerator();

            OleDbDataAdapter.FillDataTable(dataReader, dataTable);
            return(dataTable);
        }
Esempio n. 2
0
        public DataTable GetElements()
        {
            OleDbConnection.ExecutePermission.Demand();
            DataTable table = new DataTable("MSDAENUM")
            {
                Locale = CultureInfo.InvariantCulture
            };

            OleDbDataAdapter.FillDataTable(GetRootEnumerator(), new DataTable[] { table });
            return(table);
        }
        public DataTable GetElements()
        {
            OleDbConnection.ExecutePermission.Demand();

            DataTable dataTable = new DataTable("MSDAENUM"); // WebData 112482

            dataTable.Locale = CultureInfo.InvariantCulture;
            OleDbDataReader dataReader = GetRootEnumerator();

            OleDbDataAdapter.FillDataTable(dataReader, dataTable);
            return(dataTable);
        }
        internal DataTable GetSchemaRowset(Guid schema, object[] restrictions)
        {
            DataTable table2;
            IntPtr    ptr;

            Bid.ScopeEnter(out ptr, "<oledb.OleDbConnectionInternal.GetSchemaRowset|INFO> %d#, schema=%ls, restrictions\n", base.ObjectID, schema);
            try
            {
                if (restrictions == null)
                {
                    restrictions = new object[0];
                }
                DataTable table = null;
                using (IDBSchemaRowsetWrapper wrapper = this.IDBSchemaRowset())
                {
                    System.Data.Common.UnsafeNativeMethods.IDBSchemaRowset rowset2 = wrapper.Value;
                    if (rowset2 == null)
                    {
                        throw ODB.SchemaRowsetsNotSupported(this.Provider);
                    }
                    System.Data.Common.UnsafeNativeMethods.IRowset ppRowset = null;
                    Bid.Trace("<oledb.IDBSchemaRowset.GetRowset|API|OLEDB> %d#\n", base.ObjectID);
                    OleDbHResult result = rowset2.GetRowset(ADP.PtrZero, ref schema, restrictions.Length, restrictions, ref ODB.IID_IRowset, 0, ADP.PtrZero, out ppRowset);
                    Bid.Trace("<oledb.IDBSchemaRowset.GetRowset|API|OLEDB|RET> %08X{HRESULT}\n", result);
                    if (result < OleDbHResult.S_OK)
                    {
                        this.ProcessResults(result);
                    }
                    if (ppRowset != null)
                    {
                        using (OleDbDataReader reader = new OleDbDataReader(this.Connection, null, 0, CommandBehavior.Default))
                        {
                            reader.InitializeIRowset(ppRowset, ChapterHandle.DB_NULL_HCHAPTER, IntPtr.Zero);
                            reader.BuildMetaInfo();
                            reader.HasRowsRead();
                            table = new DataTable {
                                Locale    = CultureInfo.InvariantCulture,
                                TableName = OleDbSchemaGuid.GetTextFromValue(schema)
                            };
                            OleDbDataAdapter.FillDataTable(reader, new DataTable[] { table });
                        }
                    }
                    return(table);
                }
            }
            finally
            {
                Bid.ScopeLeave(ref ptr);
            }
            return(table2);
        }
        internal DataTable GetSchemaRowset(Guid schema, object[] restrictions)
        {
            IntPtr hscp;

            Bid.ScopeEnter(out hscp, "<oledb.OleDbConnectionInternal.GetSchemaRowset|INFO> %d#, schema=%ls, restrictions\n", ObjectID, schema);
            try {
                if (null == restrictions)   // MDAC 62243
                {
                    restrictions = new object[0];
                }
                DataTable dataTable = null;
                using (IDBSchemaRowsetWrapper wrapper = IDBSchemaRowset()) {
                    UnsafeNativeMethods.IDBSchemaRowset dbSchemaRowset = wrapper.Value;
                    if (null == dbSchemaRowset)
                    {
                        throw ODB.SchemaRowsetsNotSupported(Provider);
                    }

                    UnsafeNativeMethods.IRowset rowset = null;
                    OleDbHResult hr;

                    Bid.Trace("<oledb.IDBSchemaRowset.GetRowset|API|OLEDB> %d#\n", ObjectID);
                    hr = dbSchemaRowset.GetRowset(ADP.PtrZero, ref schema, restrictions.Length, restrictions, ref ODB.IID_IRowset, 0, ADP.PtrZero, out rowset);
                    Bid.Trace("<oledb.IDBSchemaRowset.GetRowset|API|OLEDB|RET> %08X{HRESULT}\n", hr);

                    if (hr < 0)   // ignore infomsg
                    {
                        ProcessResults(hr);
                    }

                    if (null != rowset)
                    {
                        using (OleDbDataReader dataReader = new OleDbDataReader(Connection, null, 0, CommandBehavior.Default)) {
                            dataReader.InitializeIRowset(rowset, ChapterHandle.DB_NULL_HCHAPTER, IntPtr.Zero);
                            dataReader.BuildMetaInfo();
                            dataReader.HasRowsRead();

                            dataTable           = new DataTable();
                            dataTable.Locale    = CultureInfo.InvariantCulture;
                            dataTable.TableName = OleDbSchemaGuid.GetTextFromValue(schema);
                            OleDbDataAdapter.FillDataTable(dataReader, dataTable);
                        }
                    }
                    return(dataTable);
                }
            }
            finally {
                Bid.ScopeLeave(ref hscp);
            }
        }
        internal DataTable GetSchemaRowset(Guid schema, object[] restrictions)
        {
            if (null == restrictions)
            {
                restrictions = Array.Empty <object>();
            }
            DataTable dataTable = null;

            using (IDBSchemaRowsetWrapper wrapper = IDBSchemaRowset())
            {
                UnsafeNativeMethods.IDBSchemaRowset dbSchemaRowset = wrapper.Value;
                if (null == dbSchemaRowset)
                {
                    throw ODB.SchemaRowsetsNotSupported(Provider);
                }

                UnsafeNativeMethods.IRowset rowset = null;
                OleDbHResult hr;
                hr = dbSchemaRowset.GetRowset(ADP.PtrZero, ref schema, restrictions.Length, restrictions, ref ODB.IID_IRowset, 0, ADP.PtrZero, out rowset);

                if (hr < 0)
                { // ignore infomsg
                    ProcessResults(hr);
                }

                if (null != rowset)
                {
                    using (OleDbDataReader dataReader = new OleDbDataReader(Connection, null, 0, CommandBehavior.Default))
                    {
                        dataReader.InitializeIRowset(rowset, ChapterHandle.DB_NULL_HCHAPTER, IntPtr.Zero);
                        dataReader.BuildMetaInfo();
                        dataReader.HasRowsRead();

                        dataTable           = new DataTable();
                        dataTable.Locale    = CultureInfo.InvariantCulture;
                        dataTable.TableName = OleDbSchemaGuid.GetTextFromValue(schema);
                        OleDbDataAdapter.FillDataTable(dataReader, dataTable);
                    }
                }
                return(dataTable);
            }
        }