private void manageEmployeeToolStripMenuItem1_Click(object sender, EventArgs e)
{
EmployeeForm objEmployeeForm = new EmployeeForm();
objEmployeeForm.MdiParent = this;
objEmployeeForm.Show();
}
private void manageEmployeeToolStripMenuItem1_Click(object sender, EventArgs e)
{
if (employeeForm == null)
{
employeeForm = new EmployeeForm();
employeeForm.MdiParent = this;
employeeForm.FormClosed += EmployeeForm_FormClosed;
employeeForm.Show();
}
else
{
employeeForm.Activate();
}
}
private void ShowEmployeeForm()
{
// If instance is null then create new form instance
if (employeeForm == null)
{
employeeForm = new EmployeeForm();
employeeForm.MdiParent = this;
employeeForm.FormClosed += EmployeeForm_FormClosed; // Call this method on form close event
employeeForm.Show(); // Method 1 to Invoke form
}
else
{
// If instance is already present, activate it and give it focus
employeeForm.Activate();
}
}
// Set form instance to null on form close
private void EmployeeForm_FormClosed(object sender, FormClosedEventArgs e)
{
employeeForm = null;
}
