本文整理汇总了C#中System.Data.Common.DbDataReader.GetProviderSpecificValues方法的典型用法代码示例。如果您正苦于以下问题:C# DbDataReader.GetProviderSpecificValues方法的具体用法?C# DbDataReader.GetProviderSpecificValues怎么用?C# DbDataReader.GetProviderSpecificValues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.Common.DbDataReader
的用法示例。
在下文中一共展示了DbDataReader.GetProviderSpecificValues方法的2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: GetProviderSpecificValues_Reader_Closed
public void GetProviderSpecificValues_Reader_Closed ()
{
cmd.CommandText = "SELECT * FROM employee";
rdr = cmd.ExecuteReader ();
rdr.Close ();
try {
rdr.GetProviderSpecificValues (null);
Assert.Fail ("#1");
} catch (InvalidOperationException ex) {
// Invalid attempt to call MetaData
// when reader is closed
Assert.AreEqual (typeof (InvalidOperationException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
}
}
示例2: GetProviderSpecificValues_Reader_NoData
public void GetProviderSpecificValues_Reader_NoData ()
{
cmd.CommandText = "SELECT * FROM employee where id = 6666";
rdr = cmd.ExecuteReader ();
try {
rdr.GetProviderSpecificValues (null);
Assert.Fail ("#A1");
} catch (InvalidOperationException ex) {
// Invalid attempt to read when no data
// is present
Assert.AreEqual (typeof (InvalidOperationException), ex.GetType (), "#A2");
Assert.IsNull (ex.InnerException, "#A3");
Assert.IsNotNull (ex.Message, "#A4");
}
Assert.IsFalse (rdr.Read (), "B");
try {
rdr.GetProviderSpecificValues (null);
Assert.Fail ("#C1");
} catch (InvalidOperationException ex) {
// Invalid attempt to read when no data
// is present
Assert.AreEqual (typeof (InvalidOperationException), ex.GetType (), "#C2");
Assert.IsNull (ex.InnerException, "#C3");
Assert.IsNotNull (ex.Message, "#C4");
}
}