How To Fast Load TreeView From Database
Jan 9, 2010Private Sub DisplayTreeview()
Try
tv.Nodes.Clear()
Dim i, j As Integer, ds1 As DataSet
S = "select * from Product where PdtRoot=''"
[Code] .....
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Load Treeview From Database?
Nov 11, 2011What is the best to load a treeview from a database where it goes 4 deep
Parent
child
child
[Code]....
How would that look in a database? and then how would you load the tree. I can load everything up to the grandchild, but as soon as I load the great grandchild I start having issues. So I am thinking it is the way they are in the database.
Run Program Access Database Load To Treeview
Aug 15, 2011I start program for a library and I have to use Treeview and Access DataBase..I find methode to load database to treeview but the problem is save changes after I run program Access Database load to treeview and I edit tree but how I can save changes before I close program?
View 1 RepliesRemoveAt Very Slow To Load / How To Make Fast
Mar 22, 2012After I RemoveAt my payList, it appear very slow in edit form, but in new form no problem.How to make it faster. [code]
View 1 RepliesLoad Treeview From Access?
Aug 12, 2009How can I load treeview from Access? I want to get small example for that.
View 3 RepliesHow To Load TreeView Serialization Into GridView
Nov 11, 2009From a TreeView, I get this XML serialized:
<?xml version="1.0" encoding="utf-16"?>
<node text="<span id='c6f5ab9e-d08f-448a-9143-02d174317c07' oncontextmenu="
SetContextMenu(this.id, event);return false;"
>Zürich</span>" value="c6f5ab9e-d08f-448a-9143-02d174317c07" navigateurl="" populateondemand="False" showcheckbox="false" checked="False" expanded="True" selected="False">
[Code] .....
Load Favorites Into TreeView From XML Document Not Working?
Dec 21, 2009I was making a treeview favorites for my browser and got this code, however, nothing happens on startup, like the treeview stays emty
Heres the code for the Load handler
If System.IO.File.Exists(FavFile) Then
Dim xdoc As New Xml.XmlDocument
[Code].....
the exact same code works for the orginal project, and I have the same xml document in the same subfolders for my project
Create XML, Save It, Open Later And Load Into TreeView Control
Sep 28, 2009I need to create an XML doc that I can call up and populate a treeview with. Can someone show me that basics on doing this. A simple example will suffice. Note I am not using XML-speak for any of this description. Assume I have some unknown number of Types (Parent Nodes). Each Type has a possible of Three Groups (children to Type nodes). Each Group has an unknown number of randomly names Cases (children to Type nodes). I want to create this XML file, save to a directory and the open again later to load into a treeView control.
Type1
Group 1
XYZ Case
[Code].....
Load A Large Number Of Records Into A Treeview Control?
Sep 5, 2011I want to load 2 crore records in a treeview control with parent child Hierarchy order
for example
- Groupa
- a1
- a2
[Code[....
VS 2008 : Load A Xml Into The Treeview To Show Cities/states?
Sep 12, 2009I have a treeview control on my form, i am trying to load an xml into the treeview to show cities/states (example at the bottom of the page)The xml that treeview is loading from looks like:
vb.net
<?xml version="1.0" encoding="utf-8" ?>
<Locations>
<Group name="US States">
[code]....
VS 2010 Save & Load Treeview To / From SQL Server Table
Feb 23, 2012This is one of those problems where there just doesn't seem to be anything of use on Google.Does anyone have any code snippets of how to achieve this? This thread: url...links to a solution but experts exchange has been a paid for service for a while now.Ideally, the solution needs to be able to handle any number of parent/child nodes.
View 3 RepliesVS 2008 TreeView Null Reference Exception In Base.load()?
Dec 28, 2009I've placed a treeview on my form and when debugging everything works as planned. However, when I publish the application and run it on another machine, I get a null reference exception. This form is an MDIchild and another form in the same child collection loads its TreeView data with no problem.Here's my code, MajorCategories(), MiddleCategories(), MinorCategories() are all arrays of Structures filled in an outside subroutine.
Private Sub CategoryMaintenance_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
RedrawTree()
[code].....
VS 2008 - Checkbox On Treeview - Collapse And Expand Treeview When Click Plus Sign (+) On Treeview
May 14, 2011I have a problems with my application..
1. collapse and expand treeview when i click plus sign (+) on treeview, treeview didn't expand subfolder but when i click image, treeview expand it.
2. showing path that i check on treeview when i check the treeview then i'm click the button, then return path that i check
This is my code..
Database - WPF Treeview In .net?
Nov 15, 2011I have been looking for a some working code for the last couple of days to set up a treeview in my WPF app to display some database data. I use VB as i am much more confident in it - which drastically limited the code examples out there. More examples i found used manually entered data to populate each node versus a database which was little help. I finally found some code which bound the each node to a query and related the query via a DataRelation. Great this should work perfect!
The example used the Northwind database so I changed it to my database and plugged in the queries. To my shock the treeview populated fine except.... all the data is invisible.
Here is the code:
Imports MySql.Data.MySqlClient
Imports System.Data
Imports System.ComponentModel
[code]....
and here what i end up with the data seems to be there but you can't see it.PS there may be some confusion as to the objects. I went back tried to keep as close to the original code as possible when i discovered the problem only replacing the queries with my own - the original code used "Categories" and "Products" where as I "use Distributors" and "Titles"
Build Treeview From Database
Jun 11, 2009I am really stugling with this an was hoping that someone has done this in the past and can lend some guidance, I have had a look on Google but I only seem to find examples of one parent and one child.Anyway back to the problem, I have a treeview on a form and I want to allow the user to create a tree structure of their choice. What I mean by that is no limit to parent and child combinations, so basically have the same functionality as in Window Explorer.Now comes the problem, what I want to be able to do is store this tree view hierarchy in a database, so that when they add a new node to the treeview it is stored in the database at the correct level. Then if the user closes the form and re-opens it loads the treeview hierarchy from the database.
View 1 RepliesBuild Treeview From Database?
Jun 11, 2009I am really stugling with this an was hoping that someone has done this in the past and can lend some guidance, I have had a look on Google but I only seem to find examples of one parent and one child.
Anyway back to the problem, I have a treeview on a form and I want to allow the user to create a tree structure of their choice. What I mean by that is no limit to parent and child combinations, so basically have the same functionality as in Window Explorer. Now comes the problem, what I want to be able to do is store this tree view hierarchy in a database, so that when they add a new node to the treeview it is stored in the database at the correct level. Then if the user closes the form and re-opens it loads the treeview hierarchy from the database.I would really apreshiate some guidance on database table stucture and how I can loop through and build the treeview
Populate A Treeview From A SQL Database?
May 12, 2010how to populate a treeview from a SQL datbase. I have been looking on the web but I have not found a lot and wwhat I did find show some things that, like child nodes that I cannot find. Basically I am pulling orders from the Northwind database and want to have a branch with an order and off this branch the with the ID of the order details. So when the they click on the order node it expands to show the orderdetail ID.
I get the a branch, weiht the code below, with the order IDs but cannot get the child branch.
my code
Public Class Form2
'Dim TreeView1 = New TreeView
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
Treeview Query To A Database?
Aug 12, 2009I have the code below, what i have is three volumes called vol2 vol 3 and QRH (these are parent nodes in a treeview), these nodes are named in my database in a volume column 2,3 and 4 respectively. what i want to do is run a query that populates a treeview with another column depending on which parent node is clicked.
A drawing
Volume Parent node name (in treeview) child node
2 vol2 flightpath
3 vol3 takeoff
4 QRH landing
2 vol2 data
and there are more than one child node that has volume 2,3 or 4 what i want is if vol2 is clicked this is oppened
vol2
---Flightpath
---Data
etc etc
below is the code i am working on:
If tvwFCOM.SelectedNode.Text = "vol2" Then
Dim Volume As String = "2" And
Query = New OleDb.OleDbCommand("Select Title From " & cmbFamily.Text & " _Chapters Where Volume = '" & Volume & "'", AccessConn)
End If
If you're not living on the edge, you're taking up too much room?
Create Nodes Treeview From Database?
May 13, 2011I'm trying to create nodes from a .sdf database according to a specific value in a combobox.[code]...
View 2 RepliesForms :: Build Treeview From Database?
Jun 11, 2009I have a treeview on a form and I want to allow the user to create a tree structure of their choice. What I mean by that is no limit to parent and child combinations, so basically have the same functionality as in Window Explorer.
Now comes the problem, what I want to be able to do is store this tree view hierarchy in a database, so that when they add a new node to the treeview it is stored in the database at the correct level. Then if the user closes the form and re-opens it loads the treeview hierarchy from the database.
I would really apreshiate some guidance on database table stucture and how I can loop through and build the treeview
How To Create TreeView From Database Using LINQ
Nov 8, 2010I want to create a treeview from a database in my project. I have been using linq to retrieve data. I have TeamLeaders, Marketers and Clients. When i expand the TeamLeaders node i want to see the Marketers under that node and when I click on the Marketer. I want the list of clients under that Marketer to be displayed on the right panel that has a gridview. TeanLeaders and Marketers are from one table and Clients in a different table.
View 2 RepliesLoading Database Into Treeview In Groups?
Sep 13, 2010I'm thinking about using the treeview for creating a phonelist. The issue here is that I can't think how to load the data into the nodes according the group they are categorized in.
Here's a screenshot of my test_database:
So there is an ID and a row with groups (groep). What I want is that when loading the data a DISTINCT node gets create for each group and that the person is added to the sub-node. Got the faintest idea where to start.
Use Save All The Contents Of Treeview In The Database?
Feb 5, 2009finding a solution on how to save a four level treeview on each table in the database? each level must be saved in the table w/c includes their parent-child relationship.
[Code]...
VS 2005 Connect Database To A Treeview
Dec 24, 2009I would like to connect my database to a treeview. Here is my code so far. It is connecting BUT i have problem. SEE the image below
[Code]...
The image below is showing my problem. The Groups are all shown. I would like to see 2A , 3A, 4A ...(so only ONE 2A) .and so on... and then click on the node to open with all the students in that group...
Populate TreeView With A MS Access 2007 Database?
Oct 10, 2011The question says it all, I can connect/Open a Access DB and I can setup a Treeview but how can I bind them together?
View 1 RepliesSaved String Or Value In Your Database - Open This That It Is Selected In A Treeview?
May 1, 2012If you have a saved string or value in your database. How can you open this that it is selected in a treeview? i mean when you click for example a commandbutton (Open my data)
View 1 RepliesVS 2010 Treeview - Populate From Database, With Child Nodes?
Oct 27, 2011i have a treeview which is databoud to a access dataabse, the database has 1 table, and the treeview shows everyname from column 2.
What im trying to achive is for the treeview to also display the names from column 5 and 6 as child nodes of the name from column 2. Been tinkering all morning to no luck, googles not finding much int he way of working examples, just lots of garbage.
Treeview - Display The Selected Contents Of Treeview Into The Listbox?
Mar 2, 2010i have a treeviev and listbox.i want to display the selected contents of treeview into the listbox.my code is working for file but not for folder. means i want, if the all contents of folder ABC(i.e all files) are selected then in listbox i want to show the only path of folder not the seperate path of each file.
View 1 RepliesLoad And Run Swf From Database?
Jan 26, 2011i want to load and run swf file which is in byte array format in databse (sqlite)i search to run swf from db directly without creating temp file but i cant find. If file is createdthan may be file stolen. So i want to run file without creating it in temp
View 4 RepliesFeed Reader - Compare The Feed To The Database And Only Load New Items Into The Database
Nov 8, 2011I am trying to figure something out. I have an application in which I am adding the ability to consume a feed. I have no problem with the feed itself, but my problem is how can I mark certain items as 'read'? The only thing I can thing of is to read the feed into a database. In this database, I add a column for 'read' which I update when the user has read the article. Then each time I retrieve the feed, I compare the feed to the database and only load new items into the database.
View 2 Replies