Attempting to change the BackColor of a Form by a button that is located on a seperate Form : <p>Title says it all. </p>

<p>but this is the code I used </p>

<pre><code>Form1 f1 = new Form1();

    private void button2_Click(object sender, EventArgs e)
    {

        {
            f1.BackColor = Color.White;
        }
</code></pre>

<p>For example, the button is on Form4, and when I click that button, I want the BackColor of Form1 to change to white, but it doesn't.</p>
