static bool CheckIfFormIsOpen(string id, string message)
{
FormCollection fc = Application.OpenForms;
foreach (MessageForm frm in fc.OfType <MessageForm>())
{
if (frm.frmId == id)
{
frm._msgText(id, message);
return(true);
}
}
return(false);
}
private void btUtilizadores_Click(object sender, EventArgs e)
{
if (!formsOpen.OfType <formPickUser>().Any())
{
new formPickUser(dbContainer).Show(this);
}
else
{
formsOpen.OfType <formPickUser>().First().Focus();
}
}
public static Form Validar <T>(this FormCollection forms) where T : Form
{
return(forms
.OfType <T>()
.FirstOrDefault());
}