C#: calling a button event handler method without actually clicking the button

Question

I have a button in my aspx file called btnTest. The .cs file has a function which is called when the button is clicked.

btnTest_Click(object sender, EventArgs e)

How can I call this function from within my code (i.e. without actually clicking the button)?

Answer 1

btnTest_Click(null, null);

Provided that the method isn't using either of these parameters (it's very common not to.)

To be honest though this is icky. If you have code that needs to be called you should follow the following convention:

protected void btnTest_Click(object sender, EventArgs e)
{
   SomeSub();
}

protected void SomeOtherFunctionThatNeedsToCallTheCode()
{
   SomeSub();
}

protected void SomeSub()
{
   // ...
}

Answer 2

btnTest_Click(new object(), EventArgs.Empty)

Answer 3

You can call the btnTest_Click just like any other function.

The most basic form would be this:

btnTest_Click(this, null);

Answer 4

If the method isn't using either sender or e you could call:

btnTest_Click(null, null);

What you probably should consider doing is extracting the code from within that method into its own method, which you could call from both the button click event handler, and any other places in code that the functionality is required.

Answer 5

It's just a method on your form, you can call it just like any other method. You just have to create an EventArgs object to pass to it, (and pass it the handle of the button as sender)

Answer 6

Use

btnTest_Click( this, new EventArgs() );

Answer 7

Simply call

btnTest_Click(null, null);

Just make sure you aren't trying to use either of those params in the function.