Web Forms :: Load TreeView Into Session?
Oct 29, 2010
What I have is a simple treeview with one root node, and some childnodes under it. My form allows users to add a new child under the parent, (I'm not pulling anything for the treeview from a database or anything - it is just a treeview with some static nodes). What I then need to be able to do is when navigating away from the page, and then coming back, I want the user added nodes to persist.
I would like to pass the treeview info to a Session variable and then upon page return load that session back into the treeview.I've tried to loop through the treeview to get all the nodes, but my count always comes out to 1, which I'm assuming is my root node. Do I just need to pass that to a session and it'll gather all the nodes under it as well, or do I need my session to be an array and load each node.
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Jul 12, 2010
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Feb 22, 2010
I am writing an Administration Module which it lets the administrator to Add/Delete the items in TreeView. I know that I have to store the Items in SQL Database but I dont know how to retrieve them and bind to the TreeView and then Link them to related pages.
I have found some Tutorials but I did not understand completly. I've seen that they used to have the
www.testwebsite.com/PageID=1?
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Mar 23, 2010
In my Treeview i have for all nodes checkboxes.
parent
child
leaf
leaf
leaf
parent
child
leaf
child
leaf
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2. when i check parent - i want to have checked child and leaf
---
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Apr 21, 2010
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[Code]....
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HTML Code:
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="test.aspx.vb" Inherits="AdminSection_test" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
[Code] ....
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see my login code
if (Session["uname"] != null)
{
if ((Session["uname"]).ToString() != "")
{
if ((Session["UserType"]).ToString() == "Administrator")
{ dont hide nodes }
else { hide some nodes}
}
else
{
Response.Redirect("index.aspx");
Session["uname"] = "";
}
}
else
{
Response.Redirect("index.aspx");
Session["uname"] = "";
}
}
so how to do that, if you need my .aspx code for treeview so free to ask.
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Message: Input string was not in a correct format.
Stack Trace:
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at System.Web.UI.WebControls.TreeView.LoadPostData(String postDataKey, NameValueCollection postCollection)
at System.Web.UI.WebControls.TreeView.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection)
at System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
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Sample
Link
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