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BOOK: Beginning ASP.NET 3.5 : in C# and VB BOOK ISBN: 978-0-470-18759-3
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Old January 27th, 2010, 07:02 AM
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Default master page question

Hi again
I wanted to know if there is a way to create the following:
in the master page I put a dropdownlist that when selected index change I want it to change a grid view data which is on a page called page1.aspx.

also if I want the dropdownlist to affect only that page and not other pages so when users change the selected index they will be transferred to page1.aspx with the selected value of course

can it be done? I tried and did not succeed...

TIA barak
 
Old January 27th, 2010, 09:40 AM
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Default

Hi there,

One solution that comes to mind is always redirect to Page1.aspx with some data in the querystring.

Alternatively, you could create an event in the MasterPage that fires when the DDL is changed. Then Page1.aspx can subscribe to the event and handle it appropriately

For more info about the second solution, take a look at the section "Master Page To Content Page Interaction" in this article: http://odetocode.com/articles/450.aspx

Cheers,

Imar
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Author of Beginning ASP.NET 4.5 : in C# and VB, Beginning ASP.NET Web Pages with WebMatrix
and Beginning ASP.NET 4 : in C# and VB.
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Old January 28th, 2010, 10:15 AM
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Default need help...

Hi Imar
I was looking at the articale you posted and tried something but it did not worked.

I have a master page with the folloing in it:
Quote:
<%@ Master Language="VB" CodeFile="MasterPage.master.vb" Inherits="MasterPage" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<asp:ContentPlaceHolder id="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<asp:TextBox runat="server" id="QueryBox" />
<asp:Button runat="server" ID="SearchButton" Text="Search"
PostBackUrl="~/Default1.aspx"/>
<div>
<asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">

</asp:ContentPlaceHolder>
</div>

<asp:Label runat="server" ID="FooterLabel"
Text="Default footer text" />
</form>
</body>
</html>
and in the code behind:
Quote:
Partial Class MasterPage
Inherits System.Web.UI.MasterPage
Public Property FooterText() As String
Get
Return FooterLabel.Text
End Get
Set(ByVal value As String)
FooterLabel.Text = value
End Set
End Property
Public Property SearchText() As String
Get
Return QueryBox.Text
End Get
Set(ByVal value As String)
QueryBox.Text = value
End Set
End Property
End Class
also page 1 : default1.aspx:
Quote:
<%@ Page Title="" Language="VB" MasterPageFile="~/MasterPage.master" AutoEventWireup="false" CodeFile="Default1.aspx.vb" Inherits="Default1" %>
<%@ MasterType VirtualPath="~/MasterPage.master" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</asp:Content>
and code beind:
Quote:
Partial Class Default1
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Master.FooterText = "some text"
Label1.Text = Master.SearchText
End Sub
End Class
and page 2 Default2.aspx:
Quote:
<%@ Page Title="" Language="VB" MasterPageFile="~/MasterPage.master" AutoEventWireup="false" CodeFile="Default2.aspx.vb" Inherits="Default2" %>
<%@ MasterType VirtualPath="~/MasterPage.master" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
</asp:Content>
no code behind.

according to the articale the @ MasterType directive in Default1 and in Default2 causes them both to reference the master page
but when clicking on Search button while in Default2.aspx the browser go to Default1.aspx but does not display the enterd text in QueryBox and the textbox is empty

what am I missing here? does the postbackurl does not post the textbox text?

thank you very much
Barak
 
Old January 29th, 2010, 11:15 AM
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Default

Code:
 
Label1.Text = Master.SearchText
This gives you the text for the master page which is associated with the current, request, not the previous one.

With PostBakcUrl you typically make use of the PreviousPage property....

Cheers,

Imar
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and Beginning ASP.NET 4 : in C# and VB.
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Old January 30th, 2010, 12:31 PM
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Default Thanks

thanks for the help
got it!





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