public static FRM_Pagar Instance()
{
if (instance == null)
{
instance = new FRM_Pagar();
}
return(instance);
}
private void mPagar_Click(object sender, EventArgs e)
{
for (int intIndex = Application.OpenForms.Count - 1; intIndex > 0; intIndex--)
{
if (Application.OpenForms[intIndex] != this)
{
Application.OpenForms[intIndex].Close();
}
}
FRM_Pagar form_pagar = new FRM_Pagar();
form_pagar.MdiParent = this;
form_pagar.Show();
}