VS 2008 Access Concurrency Error On Delete?
Jan 6, 2011with this code? Im getting a conurrency error when I try to update the access database:Concurrency error the delete command deleted zero of the expected records
View 7 Replieswith this code? Im getting a conurrency error when I try to update the access database:Concurrency error the delete command deleted zero of the expected records
View 7 RepliesI am making a simple program that allows a user to add and delete contacts from a database. Whenever I try to delete a contact that was created in a previous session (by session, I mean time that I ran and then ended the program), it is fine, but when I try to delete a contact created in the same session, it says: "Concurrency violation: the DeleteCommand affected 0 of the expected 1 records." here is the code for the delete button: [code] I noticed that, since the error does not happen on a new session, that if I added the code that happens at the form_load, I could fix the issue.
View 2 RepliesI have a single user app that I wrote and have been using for more than a year that uses an Access 2003 database. Today, out of the blue, I started getting a DB concurrency violation whenever I tried to update one particular table in the database. After trying to troubleshoot what the problem might be, I just deleted that table and recreated it and the problem went away.
View 2 RepliesThe way I'm doing this is performing multiple reads on different tables to extract data. In this case I'm reading 2 different MS Access 2003 tables. I then dump the data into a "Row" variable that I have Publicly defined for each Class (each Access table is defined as a Class containing all the fields, Add, Change, Delete, and Select functions).For example, my first read extracts all the fields from the "tblClients" table and loads them into the form fields via the "clientROW" object. My second read extracts all the records from the "tblClientAddr" table associated with the selected Client and loads them into their form fields respectfully via the "addressROW" object.
View 3 RepliesI get an error when updating a related table, the main table can be updated but the related gives me a concurrency error but I don't know why. Btw I'm the only one using the program and it's connecting to sql server 2005 express.Inserting works like a charm.My piece of code, I hope you get it. The concurrency error is given on Me._objtblOrderinformatieA.Update(Me.objdtsOrders.orderInformatie)
If MessageBox.Show("Bent u zeker dat u deze record wilt wijzigen?", "Orderbeheer", MessageBoxButtons.YesNo) = 6 Then
update_dataset()
Me._objtblOrdersA.Update(Me.objdtsOrders.orders)
[code]....
I'm new to vb.net and its database methods so I'm a bit confused by these datasets and grids and table adapters.
I'm getting:Concurrency violation: the UpdateCommand affected 0 of the expected 1 records.
On this line:frmMain.AccountsTableAdapter.Update(frmMain.DsAccounts)
I have a datagridview attached to a dataset. I also have a button that the user can press to update information in the datagrid based on a website. But I often get that error when it comes to actually updating the table.
I cannot for the life of me work out why I get a concurrency error on the second update Here is my
[Code]....
I am getting a concurrency error on a truegrid. Basically I put some data in a row and and then do a dataadapter update command on the bound dataset. This works fine until I then modify the same row and do an update. How can I make it so that I don't get an error?
View 6 RepliesA concurrency violation error? It happens on this statement:
CODE:
It thinks I'm using a key value of 1 when the actual value is really 1218. I'm using a command builder. The attachments show the value of the key value and the value of the update text values. By the way, I can insert data but not update it.
I am using the select command to find a specific row and if its found update it but when I update back to live database I get a concurrency error. Here is my
[Code]...
how i can add, delete, edit, update data of ms access file using visual basic 2008
View 3 RepliesI will be displaying most of my data in a Listview, One I found that works with how I want it starts like this:
Dim Connection As New OleDb.OleDbConnection
Dim DataAdapter_ As OleDb.OleDbDataAdapter
Dim DataSet_ As New DataSet
[Code]....
The Add, Update and Delete on the tutorial didn't seem to work any chance
I am using this code to Add rows to a SQL database, and it adds the row to the SQL database if column 7 is not null. After it adds the row to the SQL database, it deletes it from the Access Dataset, and updates the Access Database. Sometimes double rows seem to get inserted into the database, so I'm thinking there is an error in my logic somewhere here.
Dim rowcount As Integer = AccessDataSet.AccessTbl.Rows.Count
Dim y As Integer = 0
For x = 0 To rowcount - 1
txtRow = AccessDataSet.AccessTbl(y)
If IsDBNull(txtRow(7)) = False Then
[Code] .....
This is my:
CODE:
I have a database, added in data sources. I can manage records with automatically generated database toolbar.I want buttons for Add, Replace, Erase data from Database. So far i've seen some Tutorials but they are most likely for VB6 and also i'm really new on VB at all.
So i've uploaded all my project folder and my access database for you to rewiev it.Also excuse me for my englsih. It's not my native language. And again i'm new on VB, so i can ask dumm questions about basic. I can use some qualty VB 2008 tutorials links too.
I am using MS Access 2007 as database and VB 2008 to build an application to show the content of 2 tables as a single table.I have two tables in MS Access and i have linked both the tables using "ID" as primary key(1st Table),foreign key(2nd Table). I used Query Wizard to show the data of both tables in a single table(3rd Table).I am able to view the content of all 3 tables using datagridview in vb 2008(Using Code), but i am unable to add,delete,save and search the content of the table using code. My concern is,i will be able to do all these operations using codes only.Would you please help me out in this.
View 5 Repliesi need to access to a special folder and operate there, but i don't have permission to do this, how i can set permission to access to special folder and delete/create files?
View 18 Repliesi need a simple phonebook program using vb.net 2008 and access 2007 using ado.net with add , edit , delete buttons
View 2 RepliesI am working on a program whereby insert, update and delete of database is required, i have been able to do so successfully but the above error occurs when i tried to insert a new row of data into the database and tried to edit it and update it to the database. The database platform i used is SQL server 2005 and i am using datagridview to display my data, my primary key is "s/n" which is an auto number, however, whenever after i insert data into the database, the newly added row has the "s/n" column blank shown in the datagridview and after i edited that row and tried to update it, the error occurs.
Imports System.Data
Imports System.Data.SqlClient
Imports System.Threading
Imports System.Text.RegularExpressions
[code]....
Code:
Dim cn As New ADODB.Connection()
cn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:BackupEon of LightEon Of Light.mdb"
[code]....
' This code not Working :('Error Messege in md.Save()
My client recently got this error but I can't reproduce it on my pc. Any Idea what the problem could be. I have a master/detail scenario. So I have a grandparent/parent relationship, so when I select a product from my product combobox it displays the relevant results from the Result_Header table in my first datagridview.
Then I have a parent/child relationship so that when I select a result_header item from my first datagridview it displays the child records from the Result_detail table. If i'm adding a new Result_Header and then click save, I search for existing tests for the chosen product and insert them as new datarows into the Result_detail table. then I can update the child rows and click the second save button and it saves what I edit. Quite complicated.
Dim data As DataSet
Private dbpath As String = My.Settings.dbpath
Private con As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;" _
& "Data Source=" & dbpath & ";Persist Security Info=False;")
[code]....
I am trying to utilize the access database, but I'm getting an error message: Value cannot be null. Parameter name: dataSet
[Code]...
That's the code I'm using, why I'm getting this error?
I am creating a small app in VS2008 and have to use an Access DB. I have Office 2007 loaded on my machine. I use the Create DataSource Wizard to set things up, when I declare all of the information and test that connection and it works. I save the connection string and click Next: at that point I get the following error message in a popup dialog box:
'Microsoft.visualstudio.datadesign.syncdesigner.syncfacade.syncmanager' from assembly
'Microsoft.visualstudio.datadesign.syncdesigner.dslpackage, version=9.0.0.0, culture=neutral, publickeytoken=b03f5f7f11d50a3a;'
how to fix this?
When I try to connect to an access database I get this error: "The Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine."It comes up when I try to debug, da.Fill(ds) becomes highlighted and an arrow with that error comes up.I dont understand how its not registered on the machine, when I check the connection to my access database in the visual environment it says its successfully.
sqlQuery = "SELECT " & sqlColor & " FROM Pictonary WHERE ID=" & j.ToString
Using cn As New OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:UsersChrisDesktopRandom Color For PictonaryRandom Color For
[code].....
I have a small program with Members table and for subscription. The table has a joindate, expirationdate, status and gracedate collumns. When I run my program n click on a button I want the program to update the STATUS text by checking expirationdate column if is greate or equals to todays date then Set it to Expire.[code]Here is the error message I get on runtime: Syntax error in string in query expression 'Expirationdate <= '26 July 2011'.All I need is to change the status text into Expire if expirationdate <= todays date.
View 1 Repliesthis is my codes:
Dim Cmd As OleDbCommand
Dim SQL As String
Dim objCmd As New OleDbCommand
Dim Con = New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;""Data Source= C:\Users\STRIDEO1\Desktop\HIS1.accdb;User ID=Admin;Password=;")
[Code]...
I cannot subclass a window form some reason (running as administrator) Is there something I missed here:
vb.net
Public Delegate Function WndProc( _
ByVal hWnd As IntPtr, _
[Code].....
sql = "CREATE TABLE tblPrograms ([index] Counter," & _
"[lngPlatformFK] TEXT(255) NOT NULL," & _
"[strCompany] TEXT(255)," & _
"[strProgramName] TEXT(255) NOT NULL," & _
[Code].....
When running the previous sql query i am getting a syntax error. This database is a access 2003 database using the Jet 4.0 OleDB driver.
I have a class project that supplied me with an Access 2007 DB. When in VB and go through the steps for creating a data source. When the Wizard comes up I click on Database, Next, New Connection, Data Source is Microsoft Access Dagabase File (OLE DB), Browse to Database File Name, Test Connection is successful, click on OK, then Next. A MSVS box appears "The connection selected uses a local data file that is not in the current project. "Would you lie to copy the file to your project and modify the connection?"I am supposed to click NO. When I do I get this "Wizard Form" "An unexpected error has occurred. Error Message: Cound not load type." I need to be able to go to the next part of the Configuration Wizard that says "Choose Your Database Objects" I evensaved the file as Access 2003, and it will not work.
View 4 RepliesI get the error message: "Format of initialization string does not conform to specification starting at index 0" What does this mean and how can I get the database to open in vb express 2008?
View 5 Replies