IParameterRequired Property

bool Required { get; }

ReadOnly Property Required As Boolean
	Get

property bool Required {
	bool get ();
}

abstract Required : bool with get

function get_Required();

Property Value

Required parameters (i.e., Required = true) must precede optional parameters (i.e., Required = false) in the parameter list.

Note that the data source values parameter, i.e., the 'expression', is technically a required parameter but always exists as the last parameter after any defined optional or internal parameters. This parameter is automatically added to the parameter list by the ParameterDefinitions class.

Reference