ArgumentException.Message Property

Definition

Gets the error message and the parameter name, or only the error message if no parameter name is set.

C#
public override string Message { get; }

Property Value

A text string describing the details of the exception. The value of this property takes one of two forms:

Condition Value
The ParamName is a null reference (Nothing in Visual Basic) or of zero length. The Message string passed to the constructor.
The ParamName is not null and has a length greater than zero. The Message string appended with the name of the invalid parameter.

Remarks

This property overrides Message. The error message should be localized.

Applies to

Product Versions
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.1
UWP 10.0