选中复选框后如何执行代码？ C＃

Question

When I usually work with checkboxes, I check to see if the box is checked with the code below:

if (checkBox1.Checked)
{    
     Label1.BackColor = Color.Red;
}

This code is usually attached to a button that sets into motion when it's clicked by the user. This time, however, I want to do something, like change the color of a label, the very SECOND the checkbox is checked by the user. That is, I don't want to wait until the user pushes some other button to check if the checkbox is checked in order for the label's color to change.

How do I do this?

Answer 1

Sounds like you need a CheckedChanged event handler . That one's for ASP.Net, but there's a version for winforms as well (and xaml, and so on.)

Answer 2

Then you have to write code inside CheckedChanged Event of checkBox as below:

private void checkBox1_CheckedChanged(object sender, EventArgs e)
            {
                if (checkBox1.Checked)
                    label1.ForeColor = Color.Red;
            }

Answer 3

您为什么不参加CheckChanged事件并在那里实现您的想法？