以编程方式检查控件时如何防止触发 CheckedChanged 事件? [英] How to prevent firing CheckedChanged event when checking a control programmatically?

问题描述

如何在以编程方式检查控件时防止触发 CheckedChanged 事件?

How do I prevent firing CheckedChanged event when checking a control programmatically?

我通常按照以下方式进行.

I usually do this the following way.

private bool isFrozen = false;

private void btn1_CheckedChanged(object sender, EventArgs e)
{
    if (isFrozen) 
        return;

    isFrozen = true;
    btn2.Checked = false;
    isFrozen = false;

    // Do some stuff
}

private void btn2_CheckedChanged(object sender, EventArgs e)
{
    if (isFrozen) 
        return;

    isFrozen = true;
    btn1.Checked = false;
    isFrozen = false;

    // Do another stuff
}

有更好或更通用的解决方案吗?

Is there a better or more common solution?

推荐答案

我觉得你的方法很好.

另一种方法是在检查前删除EventHandler，然后在检查后重新添加.这种方式消除了对 isFrozen 变量的需要.

The other way to do it is remove the EventHandler before the check, and then add it back again after the check. This way eliminates the need for the isFrozen variable.

private void btn1_CheckedChanged(object sender, EventArgs e)
{
  btn2.CheckedChanged -= btn2_CheckedChanged;
  btn2.Checked = false;
  btn2.CheckedChanged += btn2_CheckedChanged;

    // Do some staff
}

private void btn2_CheckedChanged(object sender, EventArgs e)
{
  btn1.CheckedChanged -= btn1_CheckedChanged;
  btn1.Checked = false;
  btn1.CheckedChanged += btn1_CheckedChanged;

    // Do another staff
}

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