C＃缩短重复代码的更好方法

Question

the following code allows me to have a hover over image on a button but requires a load of repeated code. I was wondering if there is a way to shorten down and allow the same piece of code to be used but with a different button name.

I know the private void *NAME* can be the same, used by different buttons and allows me to shorten the following but then leaves me with the hover over being on all the buttons at once rather than individually.

private void button1_Leave(object sender, EventArgs e)
    {
        this.button1.BackgroundImage = ((Image)(Properties.Resources.leave_img));
    }

    private void btnfb_Leave(object sender, EventArgs e)
    {
        this.btnfb.BackgroundImage = ((Image)(Properties.Resources.leave_img));
    }

    void btnfb_MouseMove(object sender, MouseEventArgs e)
    {
        this.btnfb.BackgroundImage = ((Image)(Properties.Resources.hover_img));
    }

    private void btndiscord_Leave(object sender, EventArgs e)
    {
        this.btndiscord.BackgroundImage = ((Image)(Properties.Resources.leave_img));
    }

    void btndiscord_MouseMove(object sender, MouseEventArgs e)
    {
        this.btndiscord.BackgroundImage = ((Image)(Properties.Resources.hover_img));
    }

    private void btn_pp_Leave(object sender, EventArgs e)
    {
        this.btn_pp.BackgroundImage = ((Image)(Properties.Resources.leave_img));
    }

    void btn_pp_MouseMove(object sender, MouseEventArgs e)
    {
        this.btn_pp.BackgroundImage = ((Image)(Properties.Resources.hover_img));
    }

    private void btnhelp_Leave(object sender, EventArgs e)
    {
        this.btnhelp.BackgroundImage = ((Image)(Properties.Resources.leave_img));
    }

    void btnhelp_MouseMove(object sender, MouseEventArgs e)
    {
        this.btnhelp.BackgroundImage = ((Image)(Properties.Resources.hover_img));
    }

    private void btnsave_Leave(object sender, EventArgs e)
    {
        this.btnsave.BackgroundImage = ((Image)(Properties.Resources.leave_img));
    }

    void btnsave_MouseMove(object sender, MouseEventArgs e)
    {
        this.btnsave.BackgroundImage = ((Image)(Properties.Resources.hover_img));
    }

    private void btnmini_Leave(object sender, EventArgs e)
    {
        this.btnmini.BackgroundImage = ((Image)(Properties.Resources.leave_img));
    }

Answer 1

You can wire up all your event to the same handler ...

private void MyButtonLeaveHandler(object sender, EventArgs e)
{
 Button button = sender as Button;
 if (button != null)
 { 
     button.BackgroundImage = ((Image)(Properties.Resources.leave_img));
 }
}

Saying

this.button1.Leave += MyButtonLeaveHandler;
this.btnfb.Leave += MyButtonLeaveHandler;

Similarly you can create abother common handler for MouseLeave event