Treeview - Access Masterpage Object From Regular Page?
Jul 20, 2010
In a project I'm working on, the master page codebehind does a load of complex checks and confirmations that decide the navigation list displayed on the TreeView of the page. Now, I need a way to access this list from another front-end page, such as "frontpage.aspx".
This serves two purposes. One, the masterpage will hide pages on the navigation list the user shouldn't have access to, but the user can still enter the page by typing the page name into the URL manually. By being able to browse through the TreeView, I can isolate the whole authorization into a single method by simply checking if the page name exists within the currently used TreeView.
Two, this will allow me to easily change the displayed content of any page without checking the database or storing sessions for whatever specific rights the current user has, as I can just look if the TreeView contains "Products Admin" for example, and then use that to hide or display the section of the page that has to do with "Product Admin" functionality.
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i want to accessing the MasterPage variable, such as Panel, from the others page. How to do that? I have try this code:
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Feb 10, 2011
I have following environment:
masterpage with a contentPlacholder multiple pages which use this masterpage and implement a base-class (fooPage) fooPage has a certain property (fooProperty)
[Code]....
Obviously this is not going to work - but how can I achieve this?
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Apr 12, 2010
I have a textbox on a masterpage called txtNotes
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[code]....
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Oct 21, 2010
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May 6, 2010
am using asp .net 3.5 web forms with VB.I have a masterpage that is populating a treeview from a sql db. When a user clicks on the name in the tree it passes the employee identifier (employee number) to a label on the master page i have hidden. FROM the CONTENT page i am reading the label on the master page and updating the label on the content page to match the label on the master page so i can use the emp number to display info. At least that what i want. However, the content page is not posting back when the label updates of course and its one clikc behind becuase there is no post back. Is there a way to make the page postback when a label changes or a textbox for that matter.Here is how i am updating the label control On the mastepage :
Public Property EmpCode() As [String]
Get
Return Label360.Text
[code]...
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Jun 21, 2010
I have dynamically built my treeview by reading hierarchical data from database, I have divided my MasterPage like so:
<table width="100%">
<tr>
<td style="width:20%">
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</asp:TreeView>
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<td>
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</table>
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<frame src="menu.aspx" name="Menu"></frame>
<frame src="Main.aspx" name="Content"></frame>
</frameset>
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Jun 25, 2010
I have an asp:TreeView in my MasterPage, which is loaded on demand from a database using some custom functions to fill the Tree. My tree will only ever be 4 levels deep (root -> 1st sublevel -> 2nd sublevel -> leaf nodes) What I want to achieve is preserving the expand/collapse state of this TreeView while navigating between different aspx pages, that all share the MasterPage holding my TreeView. I have been using the methods described in these resources:
[URL]
but I am still not getting the results I want... My TreeView markup in the MasterPage looks like this:
[Code]....
I am using a custom class to save and retrieve the state of the TreeView, the code is pasted below:
[Code]....
In my Page_Load on MasterPage I have:
[Code]....
where Reload() makes sure I'm loading the TreeView for the correct argument (based on a user selection)
And in TreeView_Unload I have:
[Code]....
With all this in place, my TreeView is behaving almost as I want it.. I can expand the root node, it will be populated and I can browse to a new content page and have the same treeview appear in the MasterPage (with same expanded root)... BUT if I try to expand any of the 1st sublevel nodes, I end up with a completely collapsed treeview instead. After some debugging I have come to the conclusion that the "NodeExpanded" event gets the ROOT NODE as event argument instead of the 1st sublevel node that I clicked. When the user changes the option that makes the TreeView re-populate with new data, I simply do a "HttpContext.Current.Session("TreeViewState") = Nothing" to reset my saved state.
If you need more info / code snippets, let me know and I will post it.. But I felt there was no reason to post my complete source, as I have multiple files with about 500 lines of code each (there's a lot happening on the MasterPage, other than the TreeView)
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Jan 7, 2011
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[Code]....
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May 5, 2010
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I have placed the contentplaceholder in an Updatepanel. I would like to if possible avoid including the menu in the update panel.
Using
VS2008 C#
AJAX Control toolkit Version 3.0.30512.20315
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Mar 2, 2011
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This is aspx page code....
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
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{
public int[] anArray;
}
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Edit2: I removed the OdbcConnection object in order to focus to the real problem: how to refer to an object istantiated in a code-behind file from a C# class situated in App_Code?
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Jul 2, 2010
I tried to get the heade row text with the following code, but it failed.
[Code]....
Error returned was "Object reference not set to an instance of an object." on this line:
[Code]....
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[code]....
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Cannot access a disposed object.
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