如何获取DateTimePicker C＃Winform已选中/未选中事件 [英] How to get datetimepicker c# winform checked/unchecked event

问题描述

winforms .net的datetimepicker控件中有一个复选框。
但是我找不到当复选框处于选中状态或未选中状态时触发的事件。
是否有出路？

There is a check box in the datetimepicker control of winforms .net. But I could not find the event that is triggered when the check box is checked or unchecked . Is there a way out?

推荐答案

您必须存储旧的 checked值才能与新的相比，因此您可以确定已检查状态是否已更改：

You´ll have to store the old "checked" value in order to compare to the new one, so you´ll be able to determine if the "checked" state has changed:

bool oldDateChecked = false; //if it's created as not checked

private void dtp_filtro_date_ValueChanged(object sender, EventArgs e)
{
    if (this.dtp_filtro_date.Checked != oldDateChecked)
    {
        oldDateChecked = this.dtp_filtro_date.Checked;
        //do your stuff ...

    }
}

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