摘要：
在普通sql语句后面加上;async=true.There are four common ways to use BeginXXX and EndXXX to make asynchronous calls. In all cases, youinvoke BeginXXX to initiate the call. After that, you can do one of the follo... 阅读全文
摘要：
1. Fill a DataSet with data from the database2. Save the schema with DataSet.WriteXmlSchema()3. Use the schema as input into XSD.exexsd /DataSet /language:CS C:\Data\Products.xsd 阅读全文