public InvalidOperationException (string? message, Exception? innerException); 参数 message String 解释异常原因的错误消息。 innerException Exception 导致当前异常的异常。 如果 innerException 参数不是 null 引用(在 Visual Basic 中为
public InvalidOperationException (string? message, Exception? innerException); 参数 message String 解释异常原因的错误消息。 innerException Exception 导致当前异常的异常。 如果 innerException 参数不是 null 引用(在 Visual Basic 中为 Nothing),则在处理内部异常的 catch 块中引发当前异常。 注解 因前一个...
Causing an InvalidOperationException with foreach|Avoiding InvalidOperationExceptions in loops foreach语句(Visual Basic 中的For Each)重复数组或集合中每个元素的一组嵌入语句,该数组或集合可实现IEnumerable或IEnumerable界面。 foreach 用于循环访问该集合以读取和修改元素,但它不能用于添加或删除集合中的项。 如果...
System.InvalidOperationException System.Net.NetworkInformation.PingException System.Net.ProtocolViolationException System.Net.WebException System.ObjectDisposedException 线程安全 此类型的任何公共静态(Visual Basic 中的Shared)成员都是线程安全的,但不保证所有实例成员都是线程安全的。
>Visual Basic Public Delegate Sub myDelegate(ByVal anInteger as Integer, ByVal _ aString as String) >C# public delegate void myDelegate(int anInteger, string aString); 使用任何控件来调用对其他线程所拥有的控件进行操作的方法。 注意: 方法所需的参数(如果有)可在 Object 中提供。
사용 오류(즉, 메서드를 호출하는 개발자가 만든 프로그램 논리의 오류)로 인해 발생하는 예외를 throw합니다. 일반적으로 ,ArgumentNullException,InvalidOperationException또는NotSupportedException.와 같은ArgumentExcep...
MsgBox("Invalid Operation: " & vbCrLf & Oper & " is not a valid operator") End Try End Sub This is an example of running the program: You can still use regular functions that handle exceptions and each function can handle its own exception(s). Here is an example: ...
Using hard-coded index values to manipulate an array is likely to throw an exception if the index value is incorrect or invalid, or if the size of the array being manipulation is unexpected. To prevent an operation from throwing anIndexOutOfRangeExceptionexception, you can do the following: ...
Using hard-coded index values to manipulate an array is likely to throw an exception if the index value is incorrect or invalid, or if the size of the array being manipulation is unexpected. To prevent an operation from throwing anIndexOutOfRangeExceptionexception, you can do the following: ...
application (Visual Basic, VBA, etc) but also it depends on the circumstance in which it is invoked. The only possible solution is to cause an error in your code in order to causeErrto show the numeric error that occurred. Then you have to use that error number and create a custom ...