private void tsbSalesContract_Click(object sender, EventArgs e)
{
FrmSalesContract salesContract = new FrmSalesContract();
salesContract.MdiParent = this;
salesContract.Show();
}
private void btnCancel_Click(object sender, EventArgs e)
{
FrmSalesContract frmSaleContract = new FrmSalesContract();
frmSaleContract.MdiParent = this.MdiParent;
frmSaleContract.Show();
this.Close();
}
