https://msdn.microsoft.com/zh-cn/library/system.exception.targetsite(v%3DVS.80).aspxException.TargetSite 属性
.NET Framework 2.0
获取引发当前异常的方法。 命名空间:System 下面的代码示例引发一个 Exception,然后捕捉该异常,并使用 TargetSite 属性显示源发方法。 // Example for the Exception.HelpLink, Exception.Source, // Exception.StackTrace, and Exception.TargetSite properties. using System; namespace NDP_UE_CS { // Derive an exception; the constructor sets the HelpLink and // Source properties. class LogTableOverflowException : Exception { const string overflowMessage = "The log table has overflowed."; public LogTableOverflowException( string auxMessage, Exception inner ) : base( String.Format( "{0} - {1}", overflowMessage, auxMessage ), inner ) { this.HelpLink = "http://msdn.microsoft.com"; this.Source = "Exception_Class_Samples"; } } class LogTable { public LogTable( int numElements ) { logArea = new string[ numElements ]; elemInUse = 0; } protected string[ ] logArea; protected int elemInUse; // The AddRecord method throws a derived exception if // the array bounds exception is caught. public int AddRecord( string newRecord ) { try { logArea[ elemInUse ] = newRecord; return elemInUse++; } catch( Exception e ) { throw new LogTableOverflowException( String.Format( "Record \"{0}\" was not logged.", newRecord ), e ); } } } class OverflowDemo { // Create a log table and force an overflow. public static void Main() { LogTable log = new LogTable( 4 ); Console.WriteLine( "This example of \n Exception.Message, \n" + " Exception.HelpLink, \n Exception.Source, \n" + " Exception.StackTrace, and \n Exception." + "TargetSite \ngenerates the following output." ); try { for( int count = 1; ; count++ ) { log.AddRecord( String.Format( "Log record number {0}", count ) ); } } catch( Exception ex ) { Console.WriteLine( "\nMessage ---\n{0}", ex.Message ); Console.WriteLine( "\nHelpLink ---\n{0}", ex.HelpLink ); Console.WriteLine( "\nSource ---\n{0}", ex.Source ); Console.WriteLine( "\nStackTrace ---\n{0}", ex.StackTrace ); Console.WriteLine( "\nTargetSite ---\n{0}", ex.TargetSite ); } } } } /* This example of Exception.Message, Exception.HelpLink, Exception.Source, Exception.StackTrace, and Exception.TargetSite generates the following output. Message --- The log table has overflowed. - Record "Log record number 5" was not logged. HelpLink --- http://msdn.microsoft.com Source --- Exception_Class_Samples StackTrace --- at NDP_UE_CS.LogTable.AddRecord(String newRecord) at NDP_UE_CS.OverflowDemo.Main() TargetSite --- Int32 AddRecord(System.String) */ // Example for the Exception.HelpLink, Exception.Source, // Exception.StackTrace, and Exception.TargetSite properties. package NDP_UE_JSL; import System.* ; // Derive an exception; the constructor sets the HelpLink and // Source properties. class LogTableOverflowException extends System.Exception { private String overflowMessage = "The log table has overflowed."; public LogTableOverflowException(System.String auxMessage, System.Exception inner) { super(String.Format("The log table has overflowed. - {0}", auxMessage), inner); this.set_HelpLink("http://msdn.microsoft.com"); this.set_Source("Exception_Class_Samples"); } //LogTableOverflowException } //LogTableOverflowException class LogTable { public LogTable(int numElements) { logArea = new String[numElements]; elemInUse = 0; } //LogTable protected String logArea[]; protected int elemInUse; // The AddRecord method throws a derived exception if // the array bounds exception is caught. public int AddRecord(String newRecord) throws LogTableOverflowException { try { logArea.set_Item(elemInUse, newRecord); return elemInUse++; } catch (System.Exception e) { throw new LogTableOverflowException( String.Format("Record \"{0}\" was not logged.", newRecord), e); } } //AddRecord } //LogTable class OverflowDemo { // Create a log table and force an overflow. public static void main(String[] args) { LogTable log = new LogTable(4); Console.WriteLine(("This example of \n Exception.Message, \n" + " Exception.HelpLink, \n Exception.Source, \n" + " Exception.StackTrace, and \n Exception." + "TargetSite \ngenerates the following output.")); try { for (int count = 1; ; count++) { log.AddRecord(String.Format("Log record number {0}", System.Convert.ToString(count))); } } catch (System.Exception ex) { Console.WriteLine("\nMessage ---\n{0}", ex.get_Message()); Console.WriteLine("\nHelpLink ---\n{0}", ex.get_HelpLink()); Console.WriteLine("\nSource ---\n{0}", ex.get_Source()); Console.WriteLine("\nStackTrace ---\n{0}", ex.get_StackTrace()); Console.WriteLine("\nTargetSite ---\n{0}", ex.get_TargetSite()); } } //main } //OverflowDemo /* Exception.Message, Exception.HelpLink, Exception.Source, Exception.StackTrace, and Exception.TargetSite generates the following output. Message --- The log table has overflowed. - Record "Log record number 5" was not logged. HelpLink --- http://msdn.microsoft.com Source --- Exception_Class_Samples StackTrace --- at NDP_UE_JSL.LogTable.AddRecord(String newRecord) in D:\Test\ConsoleApplicat ion7\ConsoleApplication7\Class1.jsl:line 45 at NDP_UE_JSL.OverflowDemo.main(String[] args) in D:\Test\ConsoleApplication7 \ConsoleApplication7\Class1.jsl:line 62 TargetSite --- Int32 AddRecord(System.String) */ Windows 98、Windows 2000 SP4、Windows CE、Windows Millennium Edition、Windows Mobile for Pocket PC、Windows Mobile for Smartphone、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition .NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表,请参见系统要求。 |
|