[c#] How to call a button click event from another method

How can I call SubGraphButton_Click(object sender, RoutedEventArgs args) from another method?

private void SubGraphButton_Click(object sender, RoutedEventArgs args)
{
}

private void ChildNode_Click(object sender, RoutedEventArgs args)
{
   // call SubGraphButton-Click().
}

You can perform different approaches to work around this. The best approach is, if your both buttons are suppose to do the same job, you can define a third function to do the job. for example :

private void SubGraphButton_Click(object sender, RoutedEventArgs args)
{
    myJob()  
}

private void ChildNode_Click(object sender, RoutedEventArgs args)
{
    myJob()
}

private void myJob()
{
    // Your code here
}

but if you are still persisting on doing it in your way, the best action is :

private void SubGraphButton_Click(object sender, RoutedEventArgs args)
{
}

private void ChildNode_Click(object sender, RoutedEventArgs args)
{
   SubGraphButton_Click.PerformClick();
}

Use InvokeOnClick event. it works even if the button is invisible/disabled

you can call the button_click event by passing..

private void SubGraphButton_Click(object sender, RoutedEventArgs args)
{
}

private void ChildNode_Click(object sender, RoutedEventArgs args)
{
   SubGraphButton_Click(sender, args);
}

Also without passing..

private void SubGraphButton_Click(object sender, EventArgs args)
{
}

private void Some_Method() //this method is called
{
   SubGraphButton_Click(new object(), new EventArgs());
}

Add it to the instance of the Click delegate:

ChildNode.Click += SubGraphButton_Click

which is inkeeping with the pattern .NET events follow (Observer).

For WPF:

YourButtonName.RaiseEvent(new RoutedEventArgs(System.Windows.Controls.Primitives.ButtonBase.ClickEvent));

we have 2 form in this project. in main form change

private void button1_Click(object sender, EventArgs e) { // work }

to

public void button1_Click(object sender, EventArgs e) { // work }

and in other form, when we need above function

        private void button2_Click(object sender, EventArgs e)
    {
        main_page() obj = new main_page();
        obj.button2_Click(sender, e);
    }

For people wondering, this also works for button click. For example:

private void btn_Click(object sender, EventArgs e)
        {
            MessageBox.Show("Test")
        }

private void txb_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == (char)13)
            {
                btn_Click(sender, e);
            }

When pressing Enter in the textfield(txb) in this case it will click the button which will active the MessageBox.

You can easily do it by the following piece of code (assuming that name of your button is btnButton):

btnButton.PerformClick();

A simple way to call it from anywhere is just use "null" and "RoutedEventArgs.Empty", like this:

SubGraphButton_Click(null, RoutedEventArgs.Empty);

In WPF, you can easily do it in this way:

this.button.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));

You can simply call it:

SubGraphButton_Click(sender, args);

Now, if your SubGraphButton_Click does something with the args, you might be in trouble, but usually you don't do anything with them.

private void PictureBox1_Click(object sender, EventArgs e)
{
    MessageBox.Show("Click Succes");
}

private void TextBox1_KeyPress(object sender, KeyPressEventArgs e)
{
    if (e.KeyChar == 13)
    {
        PictureBox1_Click(sender, e); //or try this one "this.PictureBox1_Click(sender, AcceptButton);"
    }
}

For me this worked in WPF

    private void Window_KeyDown(object sender, KeyEventArgs e)
    {
        if (e.Key == Key.Enter)
        {
            RoutedEventArgs routedEventArgs = new RoutedEventArgs(ButtonBase.ClickEvent, Button_OK);
            Button_OK.RaiseEvent(routedEventArgs);
        }
    }

Usually the better way is to trigger an event (click) instead of calling the method directly.