Winform判断EventHandler是否已经添加

斜体部分替换成自己需要的

        private bool HasValueChangedEventHandler(DateTimePicker b)

        {

            FieldInfo f1 = typeof(DateTimePicker).GetField("onValueChanged", BindingFlags.Instance | BindingFlags.NonPublic);

            var handler = (EventHandler)f1.GetValue(b);

            return handler != null;

        }

Winform判断EventHandler是否已经添加,布布扣,bubuko.com

时间： 2024-10-14 15:12:27

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