问题描述
在这个数据绑定数据从GridBase到GridView DropDownList 它显示80个记录 我想使用条件选择那个值为>的记录0 任何想法如何完成
In this i m Binding Data From dataBase to GridView DropDownList it shows 80 records i want to use a condition it in that select that record whose value is > 0 any ideas how it can be done
private void bindCombo(string ddlName)
{
if (ddlName == "ddlCustCode")
{
ddlCustCode.DataSource = dl.getCustCode("S");
ddlCustCode.DataTextField = "CardCode";
ddlCustCode.DataValueField = "CardName";
ddlCustCode.DataBind();
}
}
推荐答案
你可以这样做 你正在取材数据表中的数据 假设您正在获取数据表名称dt 创建数据表名称myNewTable DataTable myNewTable = dt.Select（qty<>'0'）。CopyToDataTable（）; 尝试一下，让我知道这对你有帮助而不做任何事更改数据库 You Can do like this You are fetching your data in datatable Suppose you are fetching your datatable name dt create ne datatable name myNewTable DataTable myNewTable = dt.Select("qty<> '0'").CopyToDataTable(); try it and let me know this will help you without making any changes in database
在数据库中你可以做 声明@quantity int set @quantity =从表格中选择数量> 0 如果@ quantity> 0 开始 从表格中选择CustName，CustCode，qty 结束 尝试这个让我知道 in database you can do declare @quantity int set @quantity=select quantity from table where quantity>0 if @quantity>0 begin select CustName,CustCode,qty from table end try this and let me know
您可以尝试使用Generic list以便它可以很容易过滤。 You can try using Generic list so that it can be filtered easily.
private void Bind()
{
List<Item> items = new List<Item>()
{
new Item(){ Cust = "One", QTY=8 },
new Item(){ Cust = "Two", QTY=0},
new Item(){ Cust = "Three", QTY=14 }
};//Adding list item just to demonstrate
DropDownList1.DataSource = items.Where(itm=>itm.QTY>0) ;
DropDownList1.DataTextField = "Cust";
DropDownList1.DataValueField = "Cust";
DropDownList1.DataBind();
}
public class Item// this can be replaced as per your type that you fetch from your DL layer ( like dl.getCustCode("S") )
{
public string Cust { get; set; }
public int QTY { get; set; }
}希望这有帮助
Hope this helps