ValidationAttribute.ErrorMessage Property

Definition

Gets or sets an error message to associate with a validation control if validation fails.

C#
public string ErrorMessage { get; set; }
C#
public string? ErrorMessage { get; set; }

Property Value

The error message that is associated with the validation control.

Remarks

This property is the error message that you associate with the validation control. It is used for non-localized error messages.

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 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 2.0 (package-provided), 2.1 (package-provided)
UWP 10.0