How to pass multiple button click event from child to parent in c#-CodePudding

I have 18 buttons on the child form "Control Test" which send event to the parent form
Out of 18 buttons, 14 are ON and OFF functionality, making 7 pairs as in the picture
The problem is raising the event for each button, it causes very long and messy code, both in the child and the parent form,
Is there any less complex way to do it? like I have done with the menu.

Child Form:

// B Plus Relay On Button
public event EventHandler BPRElayOnBtnClicked;
protected virtual void WhenBPRelayOnBtnClicked(EventArgs e)
{
    BPRElayOnBtnClicked.Invoke(this, e);
}
private void BPRelayOn_btn_Click(object sender, EventArgs e)
{
    WhenBPRelayOnBtnClicked(e);
}

    // B Plus Relay OFF Button
public event EventHandler BPRElayOffBtnClicked; 
protected virtual void WhenBPRelayOffBtnClicked(EventArgs e)
{
    BPRElayOnBtnClicked.Invoke(this, e);
}
private void BPRelayOff_btn_Click(object sender, EventArgs e)
{
    WhenBPRelayOffBtnClicked(e);
}



// B Minus Relay ON Button
public event EventHandler BMRElayOnBtnClicked;
protected virtual void WhenBMRelayOnBtnClicked(EventArgs e)
{
    BMRElayOnBtnClicked.Invoke(this, e);
}

private void BMRelayOn_btn_Click(object sender, EventArgs e)
{
    WhenBMRelayOnBtnClicked(e);
}

// B Minus Relay OFF Button
public event EventHandler BMRElayOffBtnClicked;
protected virtual void WhenBMRelayOffBtnClicked(EventArgs e)
{
    BMRElayOffBtnClicked.Invoke(this, e);
}

private void BMRelayOff_btn_Click(object sender, EventArgs e)
{
    WhenBMRelayOffBtnClicked(e);
}
...... //event for each button

Parent Form:

private void viewToolStripMenuItem_Click(object sender, EventArgs e)
{
    ToolStripMenuItem menu = sender as ToolStripMenuItem;

    switch (menu.Name)
    {
               
        case "controlTestToolStripMenuItem":
            if (Application.OpenForms["CtrlTest"] is CtrlTest ctrlTest)
            {
                ctrlTest.Focus();
                return;
            }
            ctrlTest = new CtrlTest();
            ctrlTest.BPRElayOnBtnClicked  = CtrlTest_BPRElayOnBtnClicked;
            ctrlTest.BPRElayOffBtnClicked  = CtrlTest_BPRElayOffBtnClicked;
            ctrlTest.BMRElayOnBtnClicked  = CtrlTest_BMRElayOnBtnClicked;
            ctrlTest.BMRElayOffBtnClicked  = CtrlTest_BMRElayOffBtnClicked;
            ctrlTest.PreRElayOnBtnClicked  = CtrlTest_PreRElayOnBtnClicked;
            ctrlTest.PreRElayOffBtnClicked  = CtrlTest_PreRElayOffBtnClicked;
            ctrlTest.MdiParent = this;
            ctrlTest.Show();
            break;
            .........//Other menus ...
        default:
            break;
private void CtrlTest_BPRElayOnBtnClicked(object sender, EventArgs e)
{
    //Do something here
}
private void CtrlTest_BPRElayOffBtnClicked(object sender, EventArgs e)
{
    //Do something here
}
private void CtrlTest_BMRElayOnBtnClicked(object sender, EventArgs e)
{
    //Do something here
}
private void CtrlTest_BMRElayOffBtnClicked(object sender, EventArgs e)
{
    //Do something here
}

CodePudding user response：

For the on/off, take a look at the following