/// <summary>
/// When user cliks on red cross
/// </summary>
/// <param name="sender">LoginForm</param>
/// <param name="e">System.EventArgs</param>
private void LoginForm_Closed(object sender, EventArgs e)
{
CalculatorForm calculatorForm = new CalculatorForm();
calculatorForm.Show();
}
private void lommeregnerToolStripMenuItem_Click(object sender, EventArgs e)
{
CalculatorForm form = new CalculatorForm();
form.Show(dp_main, DockState.Document);
}