private void ToBillEdit(int v)
{
BillAddEdit billAddEdit = new BillAddEdit();
billAddEdit.MdiParent = this.ParentForm;
billAddEdit._BillID = Convert.ToString(v);
this.ParentForm.ActiveMdiChild.Close();
billAddEdit.Show();
}
private void billAddEditToolStripMenuItem_Click(object sender, System.EventArgs e)
{
if (_instanceBillAddEditForm == null)
{
CloseAllForms();
_instanceBillAddEditForm = new BillAddEdit();
_instanceBillAddEditForm.MdiParent = this;
_instanceBillAddEditForm.FormClosed += instanceBillAddEditFormHasBeenClosed;
}
else
{
ShowMessage();
}
_instanceBillAddEditForm.Show();
}
