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ValidateCount Attribute Declaration

The ValidateCount attribute specifies the minimum and maximum number of arguments allowed for a cmdlet parameter.

[ValidateCount(int minLength, int maxlength)]

For more information about how to declare this attribute, see How to Declare Input Validation Rules.
When this attribute is not invoked, the corresponding cmdlet parameter can have any number of arguments.
The Windows PowerShell runtime throws an error under the following conditions:
- The MinLength and MaxLength attribute parameters are not of type Int32.
- The value of the MaxLength attribute parameter is less than the value of the MinLength attribute parameter.
The ValidateCount attribute is defined by the ValidateCount class.

ValidateCount

How to Declare Input Validation Rules
Writing a Windows PowerShell Cmdlet

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