how to fire an event for a button from another form

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C#3.5

forms

how to fire click event for a button from a nother control

neeed help

Posted 20-Apr-14 1:03am

beljk

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Manas Bhardwaj · Answer 1 · 2014-04-20T01:09:00

In a very crude way, you can just call the original event handler just like any method. Foe e.g. I am calling the button clicked event also from checkbox changed:

C#

private void button1_Click(object sender, EventArgs e)
{
    MessageBox.Show("Button Clicked!!!");
}

private void checkBox1_CheckedChanged(object sender, EventArgs e)
{
    button1_Click(sender, e);
}

However, a better way would be look back and see what you actually want. And perhaps you can implement a new common custom event which can fired by multiple controls.

OriginalGriff · Answer 2 · 2014-04-20T01:13:00

You can do it - each button has a PerformClick method[^] you can call, which is the equivalent of clicking it with the mouse - buit I'd say it is generally poor design to use it, particularly from outside the actual UserControl or Form that houses the button - it "locks" the two classes together so you can't change one without considering the effects on the other, and it measn you have to make teh button public, which is against OOPs principles.

A better way is to create a method within the Form / UserControl with is public and which can be called by the outside world which does the same thing as clicking the button. That way the button can be replaced with a different control without the outside world needing to know about it.

Emre Ataseven · Answer 3 · 2014-04-20T06:04:00

Solution 3

Another way, create a public method

C#

//Form1

public void SimulateClick()
{
    button1_Click(null, null);
}



//Form2

form1.SimulateClick();

Posted 20-Apr-14 6:04am

Emre Ataseven

Updated 20-Apr-14 6:38am

v2

how to fire an event for a button from another form

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