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Problem with the state of a DropDownList

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destroyhead

destroyhead

Programmer
Feb 22, 2006
27
GB
Hi,
I have got a problem to keep the state of a DropDownList.
My page is organized this way:
- 1 MasterPage with :
- 1 DropDownList
- 1 Menu
- 1 Content
- X pages displayed into the Content when clicking on the menu
When I am clicking on the menu, the PostBack refresh the DropDownList to the SelectedIndex 0.
I want to use the selected value in the ContentPages.
I have tried with the ViewState and with cookies with no success (I guess I am using it the wrong way).
Many thanks for your help.

-- Olivier --
 
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Are you re-populating the DDL on every postback or do you use the IsPostBack method to check whether it is a postback?


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Hi ca8msm,
I am using an SQLDataSource to populate it.
How do I keep the SelectedIndex between PostBack?
Thanks.

-- Olivier --
 
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Hi,
When I am doing the PostBack via ButtonClick or SelectedIndexChanged, the state stays . It is when I am doing the PostBack with the menu that the state is refreshed.
What is wrong?
Thanks.
-- Olivier --

 
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I don't know - you'll have to post the relevant code so we can see what you are doing.


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Yes, please post the code, a postback is a postback is a postback. It shouldn't matter what triggers it, there must be something else in the code.

Jim
 
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<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
<html xmlns=" >
<head runat="server">
<title>MY PAGE</title>
</head>
<body>
<form id="form1" runat="server">

<!-- Zone : Header -->
<div class="header">
<!-- Zone : Direct Access -->
<div class="directaccess">
<asp:DropDownList ID="DropDownList1" runat="server" DataSourceID="DB1" DataTextField="Name" DataValueField="ID" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
</asp:DropDownList>
<asp:SqlDataSource ID="DB1" runat="server" ConnectionString="<%$ ConnectionStrings:csDB1 %>"
SelectCommand="SELECT [ID], [Name] FROM [Server]"></asp:SqlDataSource>
</div>
</div>
<div class="page">
<div id="details" style="right: 0px; top: 0px">
<div id="menu">
<asp:Menu ID="Menu1" runat="server" DataSourceID="SiteMapDataSource1" BackColor="#F7F6F3" DynamicHorizontalOffset="2" Font-Names="Verdana" Font-Size="1em" ForeColor="#7C6F57" Orientation="Horizontal" StaticSubMenuIndent="10px">
<StaticMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" />
<DynamicHoverStyle BackColor="#7C6F57" ForeColor="White" />
<DynamicMenuStyle BackColor="#F7F6F3" />
<StaticSelectedStyle BackColor="#5D7B9D" />
<DynamicSelectedStyle BackColor="#5D7B9D" />
<DynamicMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" />
<StaticHoverStyle BackColor="#7C6F57" ForeColor="White" />
</asp:Menu>
<asp:SiteMapDataSource ID="SiteMapDataSource1" runat="server" ShowStartingNode="False" />
</div>
<div id="content">
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</div>
</div>
</form>
</body>
</html>

Many thanks.
 
Upvote 0 Downvote
There isn't any!
Everything is populated automatically with the Data Control.
 
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You are going to have to write the code manually if you want to manipluate it (i.e. don't populate the control on each load of the page).


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Need help finding an answer?

Try the Search Facility or read FAQ222-2244 on how to get better results.

 
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Hi,
Many thanks for your help.
Does someone know why the Menu control refresh the page without keeping the ViewState of all the other controls?
Is there a possibility to avoid that?
Thanks.

-- Olivier --
 
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I just tested the menu and had no problems.. maybe just recreate the control.

Jim
 
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