我有以下代码：
代码背后：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.DataVisualization.Charting;
namespace TestApp2
{
public partial class hookload : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString["Rig_ID"].Equals(1))
MultiView1.ActiveViewIndex = 0;
else if (Request.QueryString["Rig_ID"].Equals(2))
MultiView1.ActiveViewIndex = 1;
else if (Request.QueryString["Rig_ID"].Equals(3))
MultiView1.ActiveViewIndex = 2;
else if (Request.QueryString["Rig_ID"].Equals(4))
MultiView1.ActiveViewIndex = 3;
else if (Request.QueryString["Rig_ID"].Equals(5))
MultiView1.ActiveViewIndex = 4;
}
}
}
这是我的 aspx 文件：
<%@ Page Title="Shannons Proof of Concept Rig Dashboard" Language="C#" MasterPageFile="~/Site.master"
AutoEventWireup="true" CodeBehind="hookload.aspx.cs" Inherits="TestApp2._Default" %>
<%@ Register Assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
Namespace="System.Web.UI.DataVisualization.Charting" TagPrefix="asp" %>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:MultiView ID="MultiView1" runat="server">
<asp:View ID="View1" runat="server">
<asp:SqlDataSource ID="SqlDataSource27" runat="server" ConnectionString="<%$ ConnectionStrings:RigDashConnectionString1 %>"
SelectCommand="SELECT TOP (30) tbl_rig.name, tbl_stats.Timestamp AS Expr1, tbl_stats.HookLoad, tbl_stats.Rig_ID FROM tbl_rig INNER JOIN tbl_stats ON tbl_rig.rig_id = tbl_stats.Rig_ID WHERE (tbl_stats.Rig_ID = 2) ORDER BY Expr1 DESC">
</asp:SqlDataSource>
<h2>
Rig Hook Load Stats - Previous 10 minutes</h2>
<p>
<asp:Chart ID="Chart25" runat="server" DataSourceID="SqlDataSource27" Width="900px"
Height="500px" Style="margin-top: 5px" Palette="EarthTones">
<Series>
<asp:Series Name="Rig 24 Hook Load" XValueMember="Expr1" XValueType="Time" YValueMembers="HookLoad"
Legend="Legend" YValuesPerPoint="1" ChartType="Line">
</asp:Series>
</Series>
<ChartAreas>
<asp:ChartArea Name="ChartArea1">
<Area3DStyle Enable3D="True" LightStyle="Realistic" WallWidth="0" />
</asp:ChartArea>
</ChartAreas>
<Legends>
<asp:Legend Name="Legend" Title="Legend">
</asp:Legend>
</Legends>
</asp:Chart>
</p>
</asp:View>
<asp:View runat="server">
<asp:SqlDataSource ID="SqlDataSource28" runat="server" ConnectionString="<%$ ConnectionStrings:RigDashConnectionString1 %>"
SelectCommand="SELECT TOP (30) tbl_rig.name, tbl_stats.Timestamp AS Expr1, tbl_stats.HookLoad, tbl_stats.Rig_ID FROM tbl_rig INNER JOIN tbl_stats ON tbl_rig.rig_id = tbl_stats.Rig_ID WHERE (tbl_stats.Rig_ID = 3) ORDER BY Expr1 DESC">
</asp:SqlDataSource>
<h2>
Rig Hook Load Stats - Previous 10 minutes</h2>
<p>
<asp:Chart ID="Chart26" runat="server" DataSourceID="SqlDataSource28" Width="900px"
Height="500px" Style="margin-top: 5px" Palette="EarthTones">
<Series>
<asp:Series Name="Rig 21 Hook Load" XValueMember="Expr1" XValueType="Time" YValueMembers="HookLoad"
Legend="Legend" YValuesPerPoint="1" ChartType="Line">
</asp:Series>
</Series>
<ChartAreas>
<asp:ChartArea Name="ChartArea1">
<Area3DStyle Enable3D="True" LightStyle="Realistic" WallWidth="0" />
</asp:ChartArea>
</ChartAreas>
<Legends>
<asp:Legend Name="Legend" Title="Legend">
</asp:Legend>
</Legends>
</asp:Chart>
</p>
</asp:View>
<asp:View runat="server">
<asp:SqlDataSource ID="SqlDataSource29" runat="server" ConnectionString="<%$ ConnectionStrings:RigDashConnectionString1 %>"
SelectCommand="SELECT TOP (30) tbl_rig.name, tbl_stats.Timestamp AS Expr1, tbl_stats.HookLoad, tbl_stats.Rig_ID FROM tbl_rig INNER JOIN tbl_stats ON tbl_rig.rig_id = tbl_stats.Rig_ID WHERE (tbl_stats.Rig_ID = 5) ORDER BY Expr1 DESC">
</asp:SqlDataSource>
<h2>
Rig Hook Load Stats - Previous 10 minutes</h2>
<p>
<asp:Chart ID="Chart27" runat="server" DataSourceID="SqlDataSource29" Width="900px"
Height="500px" Style="margin-top: 5px" Palette="EarthTones">
<Series>
<asp:Series Name="Rig 22 Hook Load" XValueMember="Expr1" XValueType="Time" YValueMembers="HookLoad"
Legend="Legend" YValuesPerPoint="1" ChartType="Line">
</asp:Series>
</Series>
<ChartAreas>
<asp:ChartArea Name="ChartArea1">
<Area3DStyle Enable3D="True" LightStyle="Realistic" WallWidth="0" />
</asp:ChartArea>
</ChartAreas>
<Legends>
<asp:Legend Name="Legend" Title="Legend">
</asp:Legend>
</Legends>
</asp:Chart>
</p>
</asp:View>
</asp:MultiView>
<p>
<a href="..\default.aspx">< Go Back</a>
</p>
</asp:Content>
现在我的问题是，当我尝试运行它时，我收到消息“当前上下文中不存在名称‘MultiView1’”。我真的不明白为什么我会收到这个错误，但我也是一个菜鸟，所以这并不奇怪。:) 基本上，我在第一页上有一个 asp:gridview 表，我正在尝试传递参数以供此页面处理，因此当有人单击 ~\charts\hookload.aspx?Rig_ID=2 的链接时，它会处理MultiView Index 1，因此它显示 SQL 查询所描述的相关数据图表。
到目前为止，这是我发现的唯一方法，所以如果其他人有更好的主意，相信我，我全神贯注。我一直在努力寻找答案，主要是因为我不知道要搜索什么关键字。任何帮助，将不胜感激。