希望有人可以在这里帮助我，我已经寻找了几天的解决方案，但还没有找到。
我已经建立了一个带有 2 个 iframe 的页面，SelectCustomer 打开了一个页面，其中包含客户名称和 iframecontent 的下拉列表，我通过单击链接在其中加载页面。此页面有一个带参数的 sqldatasource。我想引用此参数中的下拉列表来过滤选择查询，但我还没有找到一种方法来引用 iframe“iframecontent”之外的下拉列表。
这是带有 iframe 的页面：
<%@ Page Title="" Language="VB" MasterPageFile="~/Dashboard/Sales/Dashboard_Sales.master" AutoEventWireup="false" CodeFile="Index.aspx.vb" Inherits="Dashboard_Sales_Default" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" Runat="Server">
<!DOCTYPE HTML>
<html>
<head>
</head>
<body>
<iframe
name="SelectCustomer"
src="SelectDebiteur.aspx"
align="top"
frameborder="0"
height="50"
width="100%"
marginheight="0"
marginwidth="0"
scrolling="auto">
</iframe>
<iframe
name="iframecontent"
height="500"
width="100%">
</iframe>
</body>
</html>
</asp:Content>
这是第一个 iframe 的页面：
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="SelectDebiteur.aspx.vb" Inherits="Dashboard_Sales_SelectDebiteur" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$("#DropDownList1").on("change", function () {
// When the DropDownList selected value has been changed,
// refresh the other iframed page changing its source
// adding the value as its query string.
$("#iframecontent", parent.document).attr("src", "Default.aspx?value=" + $(this).val());
return true;
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:SqlDataSource ID="ListDebiteur" runat="server" ConnectionString="<%$ ConnectionStrings:FLOSConnectionString2 %>" SelectCommand="SELECT [aa-270].cddeb, [ba-001].naamorg AS Debiteur FROM [aa-270] INNER JOIN [ba-001] ON [aa-270].cdorg = [ba-001].cdorg ORDER BY Debiteur"></asp:SqlDataSource>
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" DataSourceID="ListDebiteur" DataTextField="Debiteur" DataValueField="cddeb">
</asp:DropDownList>
</div>
</form>
</body>
</html>
这是在第二个 iframe 中加载的页面：
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:SqlDataSource ID="ListCustomers" runat="server" ConnectionString="<%$ ConnectionStrings:FLOSConnectionString2 %>" SelectCommand="SELECT [aa-270].cddeb, [ba-001].naamorg AS Debiteur FROM [aa-270] INNER JOIN [ba-001] ON [aa-270].cdorg = [ba-001].cdorg ORDER BY Debiteur"></asp:SqlDataSource>
<asp:DropDownList ID="DropDownList2" runat="server" AutoPostBack="True" DataSourceID="ListCustomers" DataTextField="Debiteur" DataValueField="cddeb">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:FLOSConnectionString2 %>" SelectCommand="SELECT [va-211].cdorg, [ba-001].naamorg, RTRIM(YEAR([va-211].[datum-lvoor])) + '-' + CASE WHEN RTRIM(MONTH([va-211].[datum-lvoor])) < 10 THEN '0' + RTRIM(MONTH([va-211].[datum-lvoor])) ELSE RTRIM(MONTH([va-211].[datum-lvoor])) END AS Maand, SUM(CASE WHEN [va-211].cdstatus = 'O' THEN [va-211].aanttelev * ([va-211].prijs / [bb-063].prijsper) WHEN [va-211].cdstatus = 'A' THEN [va-211].aantgelev * ([va-211].prijs / [bb-063].prijsper) END) AS Omzet FROM [ba-001] INNER JOIN [va-211] ON [ba-001].cdorg = [va-211].cddeb LEFT OUTER JOIN [bb-063] ON [va-211].cdprodukt = [bb-063].cdprodukt WHERE ([bb-063].cdprijssrt = 'VERK') AND ([va-211].cdstatus = 'O' OR [va-211].cdstatus = 'A') GROUP BY [ba-001].naamorg, RTRIM(YEAR([va-211].[datum-lvoor])) + '-' + CASE WHEN RTRIM(MONTH([va-211].[datum-lvoor])) < 10 THEN '0' + RTRIM(MONTH([va-211].[datum-lvoor])) ELSE RTRIM(MONTH([va-211].[datum-lvoor])) END, [va-211].cdorg HAVING (SUM(CASE WHEN [va-211].cdstatus = 'O' THEN [va-211].aanttelev * ([va-211].prijs / [bb-063].prijsper) WHEN [va-211].cdstatus = 'A' THEN [va-211].aantgelev * ([va-211].prijs / [bb-063].prijsper) END) > 0) AND ([va-211].cdorg = @param1) ORDER BY Maand, [ba-001].naamorg">
<SelectParameters>
<asp:ControlParameter ControlID="DropDownList2" Name="param1" PropertyName="Text" DefaultValue="00000739" />
</SelectParameters>
</asp:SqlDataSource>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4" DataSourceID="SqlDataSource1" EnableModelValidation="True" ForeColor="#333333" GridLines="None">
<AlternatingRowStyle BackColor="White" />
<Columns>
<asp:BoundField DataField="cdorg" HeaderText="cdorg" SortExpression="cdorg" />
<asp:BoundField DataField="naamorg" HeaderText="naamorg" SortExpression="naamorg" />
<asp:BoundField DataField="Maand" HeaderText="Maand" ReadOnly="True" SortExpression="Maand" />
<asp:BoundField DataField="Omzet" HeaderText="Omzet" ReadOnly="True" SortExpression="Omzet" />
</Columns>
<EditRowStyle BackColor="#7C6F57" />
<FooterStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#666666" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#E3EAEB" />
<SelectedRowStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />
</asp:GridView>
</div>
</form>
</body>
</html>
它是页面背后的代码：
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Dashboard_Sales_Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
DropDownList2.SelectedValue = Request.QueryString["value"];
}
}
新的挑战：
<a href="javascript:openPage()" target="iframecontent">Omzet in portefeuille </a> </li>
<scriptsrc="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"
type="text/javascript"></script>
<script type="text/javascript">
openPage = $(function () {
location.href = "Default.aspx?value=" + $("#DropDownList1").val();
});
</script>