Indicates whether the value of the parameter can be blank.
命名空间： Microsoft.ReportingServices.ReportRendering
程序集： Microsoft.ReportingServices.ProcessingCore（在 Microsoft.ReportingServices.ProcessingCore.dll 中）
语法
声明
Public ReadOnly Property AllowBlank As Boolean
Get
用法
Dim instance As ReportParameter
Dim value As Boolean
value = instance.AllowBlank
public bool AllowBlank { get; }
public:
property bool AllowBlank {
bool get ();
}
member AllowBlank : bool
function get AllowBlank () : boolean
属性值
类型：System.Boolean
A Boolean that indicates whether the parameter can have a blank value. A value of true indicates a blank value is acceptable. A value of false indicates that it cannot have a blank value.