本文整理汇总了C#中System.Data.SqlClient.TdsParserStateObject.RestoreErrorAndWarningAfterAttention方法的典型用法代码示例。如果您正苦于以下问题:C# TdsParserStateObject.RestoreErrorAndWarningAfterAttention方法的具体用法?C# TdsParserStateObject.RestoreErrorAndWarningAfterAttention怎么用?C# TdsParserStateObject.RestoreErrorAndWarningAfterAttention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类System.Data.SqlClient.TdsParserStateObject
的用法示例。
在下文中一共展示了TdsParserStateObject.RestoreErrorAndWarningAfterAttention方法的1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: ProcessAttention
private void ProcessAttention(TdsParserStateObject stateObj)
{
if (_state == TdsParserState.Closed || _state == TdsParserState.Broken)
{
return;
}
Debug.Assert(stateObj._attentionSent, "invalid attempt to ProcessAttention, attentionSent == false!");
// Attention processing scenarios:
// 1) EOM packet with header ST_AACK bit plus DONE with status DONE_ATTN
// 2) Packet without ST_AACK header bit but has DONE with status DONE_ATTN
// 3) Secondary timeout occurs while reading, break connection
// Since errors can occur and we need to cancel prior to throwing those errors, we
// cache away error state and then process TDS for the attention. We restore those
// errors after processing.
stateObj.StoreErrorAndWarningForAttention();
try
{
// Call run loop to process looking for attention ack.
Run(RunBehavior.Attention, null, null, null, stateObj);
}
catch (Exception e)
{
if (!ADP.IsCatchableExceptionType(e))
{
throw;
}
// If an exception occurs - break the connection.
// Attention error will not be thrown in this case by Run(), but other failures may.
_state = TdsParserState.Broken;
_connHandler.BreakConnection();
throw;
}
stateObj.RestoreErrorAndWarningAfterAttention();
Debug.Assert(!stateObj._attentionSent, "Invalid attentionSent state at end of ProcessAttention");
}