DataPagerFieldCollection.OnValidate(Object) 方法

定义

验证指定的对象是否为 DataPagerField 对象。Verifies that the specified object is a DataPagerField object.

protected:
 override void OnValidate(System::Object ^ o);
protected override void OnValidate (object o);
override this.OnValidate : obj -> unit
Protected Overrides Sub OnValidate (o As Object)

参数

o
Object

要验证的对象。The object to validate.

例外

onullo is null.

o 不是 DataPagerField 类或其派生类之一的实例。o is not an instance of the DataPagerField class or of one of its derived classes.

注解

此方法在内部调用以验证集合的元素 DataPagerFieldCollectionThis method is called internally to validate an element of the DataPagerFieldCollection collection. 方法执行类型检查,并验证参数中指定的对象 o 是否不为 nullThe method performs type-checking and verifies that the object specified in the o parameter is not null.

适用于

另请参阅