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C# SqlDataRecord.InternalGetSmiMetaData方法代码示例

本文整理汇总了C#中Microsoft.SqlServer.Server.SqlDataRecord.InternalGetSmiMetaData方法的典型用法代码示例。如果您正苦于以下问题:C# SqlDataRecord.InternalGetSmiMetaData方法的具体用法?C# SqlDataRecord.InternalGetSmiMetaData怎么用?C# SqlDataRecord.InternalGetSmiMetaData使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Microsoft.SqlServer.Server.SqlDataRecord的用法示例。


在下文中一共展示了SqlDataRecord.InternalGetSmiMetaData方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: SendResultsStart

        public void SendResultsStart( SqlDataRecord record ) {
            ADP.CheckArgumentNull(record, "record");

            SetPipeBusy( );
            try {
                EnsureNormalSendValid( "SendResultsStart" );

                SmiRecordBuffer recordBuffer = record.RecordBuffer;
                if (record.RecordContext == _smiContext) {
                    recordBuffer = record.RecordBuffer;
                } else {
                    recordBuffer = _smiContext.CreateRecordBuffer(record.InternalGetSmiMetaData(), _eventSink);    // Only MetaData needed for sending start
                }
                _smiContext.SendResultsStartToPipe( recordBuffer, _eventSink );

                // Handle any errors that are reported.
                _eventSink.ProcessMessagesAndThrow();

                // remember sent buffer info so it can be used in send row/end.
                _recordBufferSent = recordBuffer;
                _metaDataSent = record.InternalGetMetaData();
            }
            catch {
                _eventSink.CleanMessages();
                throw;
            }
            finally {
                ClearPipeBusy( );
                Debug.Assert(_eventSink.HasMessages == false, "There should be no messages left in _eventsink at the end of the SendResultsStart!");
            }
        }
开发者ID:iskiselev,项目名称:JSIL.NetFramework,代码行数:31,代码来源:sqlpipe.cs

示例2: SendResultsRow

        public void SendResultsRow( SqlDataRecord record ) {
            ADP.CheckArgumentNull(record, "record");

            SetPipeBusy( );
            try {
                EnsureResultStarted( "SendResultsRow" );

                if ( _hadErrorInResultSet ) {
                    throw SQL.SqlPipeErrorRequiresSendEnd();
                }

                // Assume error state unless cleared below
                _hadErrorInResultSet = true;

                SmiRecordBuffer recordBuffer;
                if (record.RecordContext == _smiContext) {
                    recordBuffer = record.RecordBuffer;
                } else {
                    SmiExtendedMetaData[] columnMetaData = record.InternalGetSmiMetaData();
                    recordBuffer = _smiContext.CreateRecordBuffer(columnMetaData, _eventSink);
                    if (SmiContextFactory.Instance.NegotiatedSmiVersion >= SmiContextFactory.KatmaiVersion) {
                        ValueUtilsSmi.FillCompatibleSettersFromRecord(_eventSink, recordBuffer, columnMetaData, record, null /* no default values */);
                    }
                    else {
                        ValueUtilsSmi.FillCompatibleITypedSettersFromRecord(_eventSink, recordBuffer, columnMetaData, record);
                    }
                }
                _smiContext.SendResultsRowToPipe( recordBuffer, _eventSink );

                // Handle any errors that are reported.
                _eventSink.ProcessMessagesAndThrow();

                // We successfully traversed the send, clear error state
                _hadErrorInResultSet = false;
            }
            catch {
                _eventSink.CleanMessages();
                throw;
            }
            finally {
                ClearPipeBusy( );
                Debug.Assert(_eventSink.HasMessages == false, "There should be no messages left in _eventsink at the end of the SendResultsRow!");
            }
        }
开发者ID:iskiselev,项目名称:JSIL.NetFramework,代码行数:44,代码来源:sqlpipe.cs

示例3: Send

        public void Send( SqlDataRecord record ) {
            ADP.CheckArgumentNull(record, "record");

            SetPipeBusy( );
            try {
                EnsureNormalSendValid( "Send" );

                if (0 != record.FieldCount) { // SQLBUDT #340564 -- don't send empty records.
                
                    SmiRecordBuffer recordBuffer;
                    if (record.RecordContext == _smiContext) {
                        recordBuffer = record.RecordBuffer;
                    } else {    // SendResultsRowToPipe() only takes a RecordBuffer created by an SmiContext
                        SmiExtendedMetaData[] columnMetaData = record.InternalGetSmiMetaData();
                        recordBuffer = _smiContext.CreateRecordBuffer(columnMetaData, _eventSink);
                        if (SmiContextFactory.Instance.NegotiatedSmiVersion >= SmiContextFactory.KatmaiVersion) {
                            ValueUtilsSmi.FillCompatibleSettersFromRecord(_eventSink, recordBuffer, columnMetaData, record, null /* no default values */);
                        }
                        else {
                            ValueUtilsSmi.FillCompatibleITypedSettersFromRecord(_eventSink, recordBuffer, columnMetaData, record);
                        }
                    }

                    _smiContext.SendResultsStartToPipe( recordBuffer, _eventSink );
                    _eventSink.ProcessMessagesAndThrow(); // Handle any errors that are reported.

                    //  If SendResultsStartToPipe succeeded, then SendResultsEndToPipe must be called.
                    try {
                        _smiContext.SendResultsRowToPipe( recordBuffer, _eventSink );
                        _eventSink.ProcessMessagesAndThrow(); // Handle any errors that are reported.
                    }
                    finally {
                        _smiContext.SendResultsEndToPipe( recordBuffer, _eventSink );
                        _eventSink.ProcessMessagesAndThrow(); // Handle any errors that are reported.
                    }
                }
            }
            catch {
                // VSDD 479525: if exception happens (e.g. SendResultsStartToPipe throw OutOfMemory), _eventSink may not be empty,
                // which will affect server's behavior if the next call successes (previous exception is still in the eventSink, 
                // will be throwed). So we need to clean _eventSink.
                _eventSink.CleanMessages();
                throw;
            }
            finally {
                ClearPipeBusy( );
                Debug.Assert(_eventSink.HasMessages == false, "There should be no messages left in _eventsink at the end of the Send record!");
            }
        }
开发者ID:iskiselev,项目名称:JSIL.NetFramework,代码行数:49,代码来源:sqlpipe.cs


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