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?
I am using treeview to display records from 4-5 SQL Tables. Currently I am using 4-5 different stored procedures to retrieve data based on a dropdownlist value.The tree is loaded everytime the value in the dropdownlist is changed by the user.
Is there a faster way to load treeview as everytime a new selection is made, the treeview is binded again. Or is there any way I can optimize the actions I am performing now to bind the treeview?
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.
In my Treeview i have for all nodes checkboxes.
parent
child
leaf
leaf
leaf
parent
child
leaf
child
leaf
1. when i check leaf - i want to have checked child and parent too
2. when i check parent - i want to have checked child and leaf
---
3. on a save button i only want to save checked leaf to DB - if they are not checked delete from DB
I have 2 iframes in my page and 2 separate pages linked to each of these iframes. In one iframe page a tab control is placed with treeview on each tabs and the tree items are selectable (treeview with checkbox). On navigation of one tab from other an XML document stored in session is being updated with the selected treenode values.
The second iframe page is places on right side of the page which summarize the selected made on the each tabs. To do this, the page is getting loaded on tab navigation and in page load of that page, the treeview id created and displayed. We created the treeview as an object and kept in session variable then added into a panel. The only modified areas require to be updated instead of binding the entire tree on each tab's navigation.
1. The treeview must retain it's collapse/expand status on tab navigation which is not happening now.
2. When I set EnableClientScript property to true, I'm getting error on expand/collapse as Undefined 'somenodename' error. If I set the value as false, then postback is happening which should not.
I use a Treeview control like below code.. it cause page_load event twice.. how to stop page_load firing twice?
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] ....
I would to like to know about how can i bind the TreeView with multiple tables
E.g.
i have a table
Class -- fields are [id,class]
Term -- fields are [id,classid,terms]
subject -- fields are [id,classid,subject,terms]
topic -- fields are [id,classid,subjectid,termsid,topic]
[all joined with Foreign keys]
my need the following output requirement.
[Code]...
MCA is a parent class and under MCA there are Terms and under Terms there are Subjects and under Subjects there are Topics according to Topics wise. My requirement is when i Clicked on the MCA it will show Terms and after clicked on any Terms it display Subjects and after clicked on the Subject it display Topics and after clicked on topic it must display contents according to topic-wise.
There is a way to map a tree view to a database structure?
View 7 RepliesI have the following code that populates a treeview with a database
it has a first and second level structure...example
-Animals
Cat
Dog
-Fruit
Appel
Orange
+Cars
How can I extend my code to get a 3 category inside the 2second category node??
example
-Animals
-Cat
Small Cat
+Dog
-Fruit
+Appel
+Orange
+Cars
the code below is a first and second level structure...how can I extend this to 3rd and fourth level??
Dim DBConn As SqlConnection
Dim dt As New DataSet()
Dim myConn As String = (ConfigurationManager.ConnectionStrings("myConnectionString").ConnectionString)
DBConn = New SqlConnection(myConn)
DBConn.Open()
'Create DataAdaptor for Customers and Orders
'Table and fetch record from the Database
Dim DBCustAdap As New SqlDataAdapter("Select * From Product_MainCategory", DBConn)
Dim DBOrdAdap As New SqlDataAdapter("Select * From Product_SecondLevelCategory", DBConn)
'Create DataSet object and fill DataAdapter
Dim DSCustOrder As DataSet = New DataSet
DBCustAdap.Fill(DSCustOrder, "Product_MainCategory")
DBOrdAdap.Fill(DSCustOrder, "Product_SecondLevelCategory")
'Add Realation using Relation Attribute
DSCustOrder.Relations.Add("CustomerOrders", DSCustOrder.Tables("Product_MainCategory").Columns("MainCategoryID"), DSCustOrder.Tables("Product_SecondLevelCategory").Columns("MainCategoryID"))
'Fill the TreeView control Nodes using For Loop
For Each PRow As DataRow In DSCustOrder.Tables("Product_MainCategory").Rows
Dim PNode As New TreeNode(PRow("MainCategory"))
Me.tvDisplayRecord.Nodes.Add(PNode)
For Each CRow As DataRow In PRow.GetChildRows("CustomerOrders")
PNode.ChildNodes.Add(New TreeNode(CRow("SecondLevelCategory")))
Next
PNode.CollapseAll()
Next
'Close Connection and Dispose all database objects
DBCustAdap.Dispose()
DBCustAdap = Nothing
DBOrdAdap.Dispose()
DBOrdAdap = Nothing
DBConn.Close()
DBConn = Nothing
End Sub
......my 3rd level datatable is called thirdLevelCategory
and has following columns:
thirdLevelCategoryID
secondLevelCategoryID ...(foreign key link to secondLevelCategory datatable)
thirdLevelCategory
I would appreciate this so much is someone can tweak my code for me please.
I developed a page where i m using jquery treeview plugin to generate tree. It worked fine on FF, IE8 with out ajax.But when my page loads thro' ajax call in IE8, it is not collapsing or expanding tree.
View 5 Repliesi have created tree view using asp.net web forms...it will simply show the data in database in the tree view. i hav kept label which should show the specific id of each parent and child when clicked for all parent nodes id is displayed as 0 and for all child nodes id is displayed as 1, it should come like this for eg,when the 1st parent is clicked it should display 1 and then it's when 1st child is licked label id should be 1a, 2nd as 1b and 3rd as 1c and so on... wat function should i use to display in the above way
View 2 RepliesHow to do this programitically.
I want to populate treeview control parent and child nodes dynamically from the database table using sql server,asp.net and c# code,so that when user clicks the node in the treeview, it would take me to the selected aspx page.
I want to take the treeview's selectednode and then search control from the database for that particular node and then bind it in gridview column dynamically.
The problem is like i am not able to get treeviews selected node in OnInit method and if If i bind it in page load or anyother i am able to get treeview selected node but i cant create dynamic columns at that time using template handler.
How can i get the treeviews selected node or what is the option to bind usercontrol in gridview column dynamically without template handler.
I want to make a menu used treeview control.so I can get data from database,I want to see in treeview.
My database: Tablename: Menu,Field: Id,ParentId,Title.
How do see this table in treeview
Example:
--Main menu1 -- id is 1,parent id is null
-- sub menu1 -- id is 3,parent id is 1
-- sub menu2 -- id is 4,parent id is 1
--Main menu2 -- id is 2,parent id is null
-- sub menu1 -- id is 5,parent id is 2
-- sub menu2 -- id is 6,parent id is 2
I have a project where I need to create a folder type view which will show a list of files, and the description of them to the user when they navigate to the website.
View 3 RepliesPeriodically a rash of occurrences of the following error happen. I believe they're the result of hack attempts. Whether that's the case or not, my question is how can I handle the error? I want to avoid unhandled exceptions. The TreeView control is just
a standard .Net TreeView control, not a custom one. If you suggest a code solution, please code it in VB.Net as that's what I'm using.
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)
I have a treeview which will be generated dynamically which need to be displayed on left side and when user clicks on a node it need to open a page on the right side of the same page. and each node has different aspx page. so whenever user selects a node the page details should be displayed on the right side .we can use an iframe on the page which will display the different pages clicked on the node.Is there any alternative i can use to display different pages based on the user selection on the right side without using iframe.
View 5 RepliesCode to drag and drop a TreeNode to another control or tag such as Div or even another TreeView.
View 1 Replieshow can i generate treeview from database using jquery. I have table with column ID,Name,ParentID. I am new in MVC.
View 3 Repliesi am creating a software., in that i want to form menu in treeview structure.the parent node, child node and sub child node location are stored in database table SQL 2005..using coding i have to display the treeview menu structure to the screen when the page loads and that too without any flickering on page load...i need in javascript or C#
View 2 RepliesI am saving relative path of files in my DB as string. I want to create a treeview from this input. There can be multiple folders for a file path.
View 1 RepliesHow to bind TreeView Control in asp.net using C# code?
View 1 RepliesI have a database table a field that is the 5 character cultureinfo code. I would like to create a dropdown control that has its value set from the database field (the database table contains only a list of those languages supported by the site) but displays the cultureinfo name.
View 1 RepliesHow to make a TreeView in my Database Table in ASP.NET ....
View 1 Repliesi have a web application with sql server 2008 i wanna know if its possible to load the data automatically after its been inserted to DB..i have a alerts table which store message and user name to which the alert is to be send i wanna display the alert msg to user after it has been inserted...
View 3 Replies