Hello Arvind
In C# you can do it like this
<br />
private void button1_Click(object sender, EventArgs e)<br />
{<br />
this.WindowState = FormWindowState.Maximized;<br />
}<br />
private void button2_Click(object sender, EventArgs e)<br />
{<br />
this.WindowState = FormWindowState.Normal;<br />
}<br />
private void button3_Click(object sender, EventArgs e)<br />
{<br />
this.WindowState = FormWindowState.Minimized;<br />
}<br />
for VB.net
you can use
Me.WindowState = FormWindowState.Maximized