I 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?
I am connecting to an Access database and using a parameter query with the LIKE operator to return all rows that match query. The string to search for is taken from a Textbox
sql =
"Select * FROM Allview WHERE Info Like" & "*" & CStr(TextBox1.Text) & "*" The query does not return any data in vb, but when run from access with same string, there is data returned.The connection to the database is done correctly, as I am able to return data with various other queries.
Partial code : Dim con As New OleDb.OleDbConnection[code]....
The database: "ID (Primary key)" | "Title" 0 | "title1"
[code].....
OK, before adding values to database, we should check if a row exists with this values :)TO do this, creating a Stored Procedure is a best way to deal with the database fastly.So... The problem now is, at the runtime, Miss OleDB throw this error:Microsoft Jet database engine cannot find the input table or query 'IF
i should say hi experts :D . Help me with this pretty code :)
The database: "ID (Primary key)" | "Title" 0 | "title1"
[code].....
OK, before adding values to database, we should check if a row exists with this values :)TO do this, creating a Stored Procedure is a best way to deal with the database fastly.So... The problem now is, at the runtime, Miss OleDB throw this error:Microsoft Jet database engine cannot find the input table or query 'IF
I 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.
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"
I 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 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
What 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.
how 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
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
I 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.
I'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.
finding 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.
I 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...
I 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?
If 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)
i 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.
[Code] my issue is that now i need two cases, first i need a query that will return the date created and modified of the table and i also need to know if its possible to query a list of table names in the database ordered by date created but that have a certain thing in their names. for example the database contains the following tables: [Code] and what i need the query to return is the tables that contain "Data", settings and employees are for the other functions of the program. so the query should return the 4 data tables in order of date created. but i have no idea how to go about doing that in the query, does anyone know how this is done?
i 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.
I'm having a bit of a problem populating a collections class with the values from the database. Everytime I loop through a record in the WHILE DR.READ loop, the last record over writes all the other items in the collection. My returnVal collections has several of the same items despite the loop showing each individual record being added into returnVal.
I have loaded my database with one table under "Data Connections" in the "Server Explorer" pane.What is the standard / best-practices way to handle a simple query in a VB ASPX page?
My left <div> would be a set of form elements to filter rows, and when the button is clicked, the main <div> would show the columns I want for the rows returned.
Note: Answers in C# are okay too, I'll just translate.
I have connected a database query that I made using MS Access 2007 to my form in VB 2008. I know how to pull the fields onto the form and get the information to display on the form by clicking the binding navigator at the top of the form. My question is that is there a way that I could input the ID number in a textbox and click a button to display the rest of the field in some more textboxes
i have a table named item_details.i have some field named item_id,item_name,quantity,supplier_name etc.i want to see all details as per the item_id given in a textbox.i also want to see details as per the item_name is given.i can use 2 forms to view this type of query..one for item_id..and other to view from item_name.but..i want to use tabcontrol..in 1 tab i want go give the item_name...and want to get the details.and other tab i want to give the item_id...and want to get the details....and whenever i gave wrong information.an error message will be shown.
Is there any way to retrive data from Database with out writing any sql query . I mean i want to read data into my label fileds with out writing any query in sqlcommand. me how can i do this in c# or vb.netUpdate
PROBLEM: I want to only show specific database records based on serveral combo-box inputs from a user. I'm looking to query an Access database from within a form I've created for viewing simple Jpegs of CAD files and pointcloud data. I've never worked with table adapters, SQL statements, or much in the way of databases before and I'm lost.
Do I add a new query and do what I want from a configuration wizard somehow? That method gave me a toolstrip button with no combo-box.Should the combo-box be bound to the table or should it stand alone?Can this be done without the use of a wizard (purely in an event) I've been told what I'm looking to do is rather simple, I'm just unable to find syntax that has worked for me.
I have created a bookshop website with database, I need a search engine that will search the database records and present the user with results according to the keyword.I have created the page with the text search box and search button.[code]
