学生求教：dropdownlist选择不同值时gridview绑定一个数据库里多个表的问题
我用的VS2005，Web窗体上建立了dropdownlist控件和一个gridview控件，dropdownlist控件里面有不同的items项目。我是想在选择dropdownlist不同选项的时候，在同一个gridview里面显示对应数据库表的信息。应该做怎样的绑定？
[解决办法]
也可以
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
String s = DropDownList1.SelectedValue;
//查询数据库，然后绑定GridView1
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
</head>
<body>
<form id="form1" runat="server">
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
</asp:DropDownList>
<asp:GridView ID="GridView1" runat="server">
</asp:GridView>
</form>
</body>
</html>
[解决办法]
联动表单一样。，那控件不是有text和vale那个值么？在后台写一个数据绑定的方法，参数是vale
把vlae的那个做成你想要查询的条件，
[解决办法]
或者这样写成方法，也跟根据你自己的问题写不同的条件
<%@ Page Language="C#" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server"> protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e) { string name = this.dropdownlist.selectValue; BindView(string name); this.dataview.DataBind(); } public void BindView(string name) { if(s == "老师") { string="select * from 老师"; DataTable table = new DataTable(); /*然后把这个SQL语句查询到的数据绑定到table里面*/ this.gridview.datasouce = table; } else if(s == "学生") { string="select * from 学生"; DataTable table = new DataTable(); /*然后把这个SQL语句查询到的数据绑定到table里面*/ this.gridview.datasouce = table; } }</script><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"></head><body> <form id="form1" runat="server"> <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged"> </asp:DropDownList> <asp:GridView ID="GridView1" runat="server"> </asp:GridView> </form></body></html>