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Update CustomValidationAttribute.xml #9775

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Update CustomValidationAttribute.xml #9775

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16 changes: 8 additions & 8 deletions xml/System.ComponentModel.DataAnnotations/CustomValidationAttribute.xml
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Expand Up @@ -256,14 +256,14 @@
<format type="text/markdown"><![CDATA[

## Remarks
The custom method specified by this property must be public and static, and it must return a Boolean value. It must also take at least one input parameter that specifies the object to validate. This parameter can be strongly typed. If a process passes a value of a different type, type conversion will be attempted.
The specified method should return `true` if a given object is valid. Otherwise it should return `false`.
The custom method can also take parameters that specify a <xref:System.ComponentModel.DataAnnotations.ValidationContext> input value and a <xref:System.ComponentModel.DataAnnotations.ValidationResult> output value. The <xref:System.ComponentModel.DataAnnotations.ValidationContext> parameter provides additional context information that the method can use to determine the context that it is used in. The <xref:System.ComponentModel.DataAnnotations.ValidationResult> output parameter enables the method to return an error message.
If the method returns `null` for the <xref:System.ComponentModel.DataAnnotations.ValidationResult> parameter or if it returns an empty value for the <xref:System.ComponentModel.DataAnnotations.ValidationResult.ErrorMessage%2A> property, the default <xref:System.ComponentModel.DataAnnotations.ValidationAttribute.FormatErrorMessage%2A> method will be called to compose the error message.
The custom method specified by this property must be public and static, and it must return a <xref:System.ComponentModel.DataAnnotations.ValidationResult> value. It must also take at least one input parameter that specifies the object to validate. This parameter can be strongly typed. If a process passes a value of a different type, type conversion will be attempted.

The specified method should return <xref:System.ComponentModel.DataAnnotations.ValidationResult.Success> if a given object is valid. Otherwise it should return custom <xref:System.ComponentModel.DataAnnotations.ValidationResult> value with optional error message.

If the method returns `null` or if it returns an empty value for the <xref:System.ComponentModel.DataAnnotations.ValidationResult.ErrorMessage%2A> property, the default <xref:System.ComponentModel.DataAnnotations.ValidationAttribute.FormatErrorMessage%2A> method will be called to compose the error message.

The custom method can also take parameter that specify a <xref:System.ComponentModel.DataAnnotations.ValidationContext> input value. Parameter provides additional context information that the method can use to determine the context that it is used in.

]]></format>
</remarks>
</Docs>
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