i like to work with combobox and database in 3 layers.the table that i can access has these elements: IdTiposervicio is int (key), and DesTipoServicio its varchar(50). How can i program combobox with database?
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I am currently using the following code to populate the combobox ' cboProducts' but i use the data binding method through the mysqlDataAdapter. I would like to load the comboxbox without data binding...How do i do this...? ( MySQL is the database.
Imports MySql.Data.MySqlClient
Imports System.Data.SqlClient
Imports System.Data
Public Class frmProduct
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In VB 2008, I use a combobox on a form, and I want to fill it with data coming from a column of an SQL Server table
The Table is PLG_Rank, Columns are "ID_Rank, Rank_Name, Rank_Code"
I want to fill the combo with PLG_Rank.Rank_Name
After that, on a selection in the combobox, I want to use the PLG_Rang.ID_Rank for a request on the SQL_Server
How can I make a comboxbox list the first item in the collection by default in other words i have a collection list
1
2
3
4
5
When program loads I want combobox to load 1
I have a keyboard handler for my combobox1:
Private sub Combobox1_Keydown(....yaddda) handles combobox1.keydown
if e.keycode = keys.enter then
msgbox(combobox1.text)
end if
end sub
this always displays an empty message box,I need the value of the combo box before the enter was pressed, apparently the enter key empties the combobox1.text.
In my Windows Form I have a ComboBox that is filled by a Stored Procedure with a list of names. I have the Combobox set for AutoComplete to "Suggest" and From "ListItems". When a user starts to type in and the AutoComplete does not find any matches in the listitems the user can tab out of the ComboBox and leave what they typed in the combobox even though it is not one of the Valid Items. Is there a way to check the Comboxbox to make sure of of the selected Items has been selected?
View 3 RepliesI am creating a very simple Voting System, that will be use on electing new set of officer in a teacher cooperative...
So I have to create two separate program, a Server Program that will manage all the information in the election and a Client Program where voters will vote their selected candidate...
The election officers wanted that the Server Program will display the Voting Results at real time... So when the Voter finished voting, The Voting Result displayed by the Server Program will also be updated every time the Client Program Insert the data to Database....
An action listener in Server Program that will execute if new data is inserted in a Table in the Database made by the Client Program...
I have a program where a lot of the required information for it is stored in text files. I simply read this information into large arrays. However, I don't think it's necessary to load all the information each time. Rather, it would be more efficient if I could simply search through a list of items to find the one I need and then use the data from it, or to find a similar name and use it elsewhere.
Would I be right in using a database? And is database programming done in SQL? I have a book on it telling me to use the SQL Server (IIRC), so I shouldn't be doing it in the VB.NET Express GUI?
Here's an example of what I would do:
Hex = 03 00 => dex number 003
Search in file Pokemon Dex Numbers
003 returns Bulbasaur
Check Bulbasaur base stats in the base stats file
etc
So basically I'm reusing a lot of information. I think a database would be best and it would all be internal right? I'm getting complaints about access denied to a text file (since it's stored in the program directory in the program files).
So to cap up the few questions I have:
-Databases are done in SQL and not inside the GUI?
-Databases would load internally?
-I could search a database without having to load it into like an array or something?
This program is very difficult for me, but I must get threw it or I cannot finish... What I am doing is making a Database of foreign Languages with the spelling of the words and the pronounciation inside the database... The USER enters a paragraph of words into the translator textbox and pushed translate. The program has a DATABANK of words with the phonetic spellings and matches the word, then translates to phonetics. The problem is that new words keep appearing inside the language. So I incorporated a Database of 2 fields
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i have a application that i designed for an assignment which uses a DB (ACCESS) However when i publish the application it fails to load even though the application completes. I have managed to find that it is the database that is not copying over, how do i solve this (the db is located when debugging and is also in the project files)
View 3 Repliesbefore re-inventing the wheel, i want to ask you how i can do this best: I have a VB.Net application that uses a database connection to MS SQL Server 2005 (express version). There are users that input data with the application into the database lets say once to 2x an hour to once a minute. I want to do backups like this: Once a day or once a week (in the evening) a full backup, and whenever the program/user is idle for lets say 10 Minutes, i want to do an incremental backup (so that it does not take so long until he can work on after the backup).
There are no big security issues, just copying the backup data files to a network share / a different computer or server would be fine. i guess the average db size may be 300MB, but the daily increments about 1MB.
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I want to create program in vb2008 express with ms access database. Can somebody help me so i can learn how to program using classes hard coded. I have learned vb6 before but it has a big difference on vb2008.
I have a database named "DATABASE" in ms access 2003 and the details are: Table :
EMPLOYEE(EmpNo, EmpName), DEPARTMENT(DeptID, DeptName), CATEGORY(CategoryID, CategoryName), SUPPLIER(SupplierID, SupplierName), ITEM(ItemID, Itemname), ITEMLIST(ItemListID, ItemID, ItemDescription), INVENTORY
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All the CAPITALIZED name are Table and all items inside the parenthesis are fieldnames. I don't know where to start on working on this RECORDS. I was able to understand visual basic 6 a bit, and i am trying to apply the coding to VB 2008 but all i get is errors. I am hopeless now and i need help to be able to start my programs. If someone can give me a sample code, i think i would be able to trace the line of code to be able to understand it. I am currently an inventory manager on the small company i was working with and i like to organize my record by using database.
How can i access a databsae through vb.net. i know how to connect to a microsoft sql server, but the problem is i have to install this sql to all the systems that i need to install the programmes. so -
1> is there any replacement to this where the programme itself has an sql which increases its size as required while running the programme and where a backup and restore function can be added?
2> can i use the database to connect to a server.
I am just trying to use a MS Database in my program and display some data on the listbox for practise but it gives me this error:
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
That is all the code I got
Imports System.Data.SqlClient
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed...
someone gave me a link to changing the database connection using an instance. When I tried to type what the instance of my SQL server 2008 I must have put the wrong information into the database connection instance.
What is the database connection instance called for SQL server 2008?
Giving out a complete tutorial on the step by step way a connecting to a database using VB?
View 2 RepliesI'm looking to create a program that needs to use a database I have (MySQL is the format it is in right now). The program doesn't need to change/update this database, only read from it. How would I go about making the data available to the program, without the end user having to install an SQL server?
View 9 Replies"Employee Monitoring Program"
Source: Visual Studio 2008 Pro
Language: Visual Basic
I already Installed the components came with the VS2008 Installer (Sql etc)
The idea of the program:
The program will create a personal information of every employee including the userid and password that will be use to log in (user validation) .The application will monitor the login / logout and save the task of every employee.he application will save/store the daily activity task done by the employee (login/logout time,notes, and other task assign). the information will be saved in a database which can be access by the application in every PC within the network (LAN).The application will be installed in different PC within a network(LAN). The number of PC is not yet confirmed (5-10 PCs)
The application will be used concurrently within the network.The database will be updated after the employee save his/her task.
I plan to have ONE application only, to make it simple no server type installation and client type installation needed. Just one installation type only, the functionality/privilege will depend on the login information validation.
There will be 3 account types, Manager Account (Administrator),Regular Account (Normal Employee) and Guest account.
1. How to create an application which the database will be on the other PC within the network (LAN) ?
2. How to do it during run time/design time ( the database will be on the other pc)?
3. Can I have a guide or walk through on how to do this project?
I'v created a program with a Ms SQL database, registration form and login form. Everything was working well so i detached the database and added it to my program as an existing item before so as to deploy the program. But now i recieve an error when i try to login to the database. The error states that there is a failure connecting to the database and the database cannot be opened
View 10 Repliesfor my A2 computing project, I need to get my program to interface with a database. Now I'm having a problem in updating records on the database. Here's what I've got so far.
Sub LockProgram()
'this updates the program to be locked, to prevent peoples trying to force their way in.
'it is simply some basic validation and an update statement on the database
If loginAttemptsToday >= 5 Then
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My program will read from a database perfectly, it will delete and add rows, but it simply will not update?
ok so i have a database which can be accesed by my program and i want to program a basic login form which wen a button is clicked, reads the username and password from 2 separate textboxes and searches for those entities in a table in my database. Now since my database with have multiple usernames i want the program to check the entire table for a match rather than singling out a particular row. how would i go about coding this?
View 7 RepliesI do have a program that uses MS SQL Server as database. The problem is that when the fire wall of the server is on, I can't connect on the server. But when i turn it off, it works! This is the connection string I'm using:
myCN.ConnectionString = "Integrated Security=SSPI; Persist Security Info=False; Initial Catalog=BIOMETRICS; Data Source=SERVER"
myCN is a SQLConnection...Please if can help me with regards on this problem.
I want to insert text into an empty database.I create a database using Access and now I want to insert text1) first I Added the data source2) I drag and drop the Fields into the dialog Form3) using dataview I inserted the database onto the dialog form4) added a little bit of code...5) Built the program and the database shows nothing...do I need to make a Query or something...bind the source
Private Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click
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I have tried many different suggestions from numerous posts by other people but with no avail. So I figured I would post "my" code and see if someone could lean me in the direction I need to go. I just need to update my database with the given values but when I click the Update button on my form It keeps telling me there is a syntax error which I do not see.[code]...
View 3 RepliesFor those of you that have been helping me for the last two days thank you first of all, my program is now at the stage where i need to have a windows application that the user can then select databases from, and then using these databases information will be put into a second application that will then run a program to compute some data and spit it into a .xml file.
Is there a prewritten piece of code for choosing databases? And then a set format for choosing cells in that data base to be exported into another windows application?
I have a access database named login.mdb,which has many tables.i want to update table named "try".in tat table i have two fields viz name and rollnumber.i want to update rollnum of corresponding name.[code]...
View 2 Replies1) I want my database should save on default location unlike this:
Dim connectionstring As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Contacts3mycontacts.mdb;Persist Security Info=False"
Since i'm deploying my project on another computer itz showing me an error of database connection.Then again i've to make one folder of Contacts3 in C drive and then itz connecting the database.please let me know how can i deploy my database as default.
2)When i'm deploying my project on server itz not running and the same pfoject is running on different computers.Itz showing me security errors.
At first glance this might looks repeated-old problem but my problem might differs a little from others
i want to create a desktop program to add images to a database (microsoft access 2003)
but the problem is no matter how i tried i can't do it.i have searched the internet[code]....
I'm not sure what is the best approach. Here is what I'm trying to do. I have installed sql express 2005 and sql express manger as pre-req before my program is installed. Now I would need to attach a DB to my new sql express instance. I'll be using windows login for this. I pretty much can not touch sql express, and run it as it was installed. No changing settings. Now I can run the SP_AttachDB from sql, but how would I automate that? I have tried the connection string, with the attach database option, but it's not working.
View 10 RepliesHow to backup ms access database in vb.net?We're gonna make a system for a certain company but our teacher doesn't teach us at all
View 1 Replies