User154499744 posted
It would be easier to explain with this example. Would someone please try this code and read through my explanation below?
Here is the page markup
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="MutiviewTest.aspx.cs" Inherits="Fund_PnL_Allocations_And_Returns.MutiviewTest" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>MultiviewTest</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:DropDownList ID="DropDownList" runat="server" AutoPostBack="true"
OnSelectedIndexChanged="DropDownList_SelectedIndexChanged">
<asp:ListItem>California</asp:ListItem>
<asp:ListItem>New York</asp:ListItem>
<asp:ListItem>Nevada</asp:ListItem>
<asp:ListItem>Utah</asp:ListItem>
</asp:DropDownList>
<asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkButton1_Click">Go to View 1</asp:LinkButton>
<asp:LinkButton ID="LinkButton2" runat="server" OnClick="LinkButton2_Click">Go to View 2</asp:LinkButton>
<hr />
<%--<asp:MultiView ID="MultiView" runat="server">
<asp:View ID="View1" runat="server">--%>
<h2>View 1</h2>
<asp:Label ID="Label1" runat="server" Width="2.0in" BackColor="LightGray">DEFAULT VALUE</asp:Label><br />
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource">
<Columns>
<asp:BoundField DataField="ItemValue" HeaderText="ItemValue" ReadOnly="True" SortExpression="ItemValue" />
<asp:BoundField DataField="LengthOfItemValue" HeaderText="LengthOfItemValue"
ReadOnly="True" SortExpression="LengthOfItemValue" />
</Columns>
</asp:GridView>
<%-- </asp:View>
<asp:View ID="View2" runat="server">--%>
<h2>View 2</h2>
<asp:Label ID="Label2" runat="server" Width="2.0in" BackColor="LightGray">DEFAULT VALUE</asp:Label><br />
<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource">
<Columns>
<asp:BoundField DataField="ItemValue" HeaderText="ItemValue" ReadOnly="True" SortExpression="ItemValue" />
<asp:BoundField DataField="LengthOfItemValue" HeaderText="LengthOfItemValue"
ReadOnly="True" SortExpression="LengthOfItemValue" />
</Columns>
</asp:GridView>
<%-- </asp:View>
</asp:MultiView>--%>
<asp:SqlDataSource ID="SqlDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:FinanceDB %>"
SelectCommand="SELECT @Item AS ItemValue, LEN(@Item) AS LengthOfItemValue">
<SelectParameters>
<asp:ControlParameter ControlID="DropDownList" Name="Item" PropertyName="SelectedValue" />
</SelectParameters>
</asp:SqlDataSource>
</div>
</form>
</body>
</html>
And here is the code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace Fund_PnL_Allocations_And_Returns
{
public partial class MutiviewTest : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
//MultiView.ActiveViewIndex = 0;
}
protected void LinkButton2_Click(object sender, EventArgs e)
{
//MultiView.ActiveViewIndex = 1;
}
protected void DropDownList_SelectedIndexChanged(object sender, EventArgs e)
{
Label1.Text = DropDownList.SelectedValue;
Label2.Text = DropDownList.SelectedValue;
}
}
}
If I conveyed everything correctly, you should get a page with a dropdown list with 2 identical sets of label and gridview that give you basic information about the item you chose. Try changing the dropdown list item and you should see the labels and the
gridviews getting updated.
Once you confirmed this, please try this. This is where I am confused. Uncomment the views in the markup and the code behind for activating the views on the 2 link buttons. After you do this, you should get one set of the label and the gridview on View 1
and the other set of the label and the gridview on View 2. Now change the dropdown list item. How do the labels and the gridviews behave for you? I am noticing that the both labels get updated as the dropdown list item is changed. But the gridview doesn't
behave the way it did before the multiview was added. Now, only the gridview that is on the active view gets updated. Do you get this behavior also?
Gridview in Non Active View of Multiview Not Getting Refreshed
