//查询
private void btnQuery_Click(object sender, EventArgs e)
{
switch (cmbQuery.SelectedIndex)
{
case 0:
using (var db = new OrderContext())
{
bindingSource1.DataSource = orderService.Orders;
//bindingSource1.ResetBindings(false);
}
break;
case 1:
int.TryParse(QueryText, out int id);
bindingSource1.DataSource = orderService.QueryById(id);
break;
case 2:
bindingSource1.DataSource = orderService.QueryByCustomerName(QueryText);
break;
case 3:
bindingSource1.DataSource = orderService.QueryByGoodsName(QueryText);
break;
case 4:
float.TryParse(QueryText, out float totalPrice);
bindingSource1.DataSource = orderService.QueryByTotalAmount(totalPrice);
break;
}
bindingSource1.ResetBindings(false);
}
