Represents the error that occurs when an argument passed to a method is invalid. [Edit]

See Also: ArgumentException Members

System.Object
     System.Exception
          System.SystemException
               System.ArgumentException

[System.Runtime.InteropServices.ComVisible(true)] public class ArgumentException : SystemException

Thread Safety

All public static members of this type are safe for multithreaded operations. No instance members are guaranteed to be thread safe.

Remarks

ArgumentException is thrown when a method is invoked and at least one of the passed arguments does not meet the method's parameter specification.

Note:

The Base Class Library includes three derived types:

• ArgumentNullException
• ArgumentOutOfRangeException
• DuplicateWaitObjectException

When appropriate, use these types instead of ArgumentException.

[Edit]

Example

The following example demonstrates an error that causes a ArgumentException exception to be thrown by the system.

C# Example

using System; public class MyClass {} public class ArgExceptionExample { public static void Main() { MyClass my = new MyClass(); string s = "sometext"; try { int i = s.CompareTo(my); } catch (ArgumentException e) { Console.WriteLine("Error: {0}",e); } } }

The output is

Error: System.ArgumentException: Object must be of type String.
at System.String.CompareTo(Object value)
at ArgExceptionExample.Main()

Requirements

Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0