I am building a project in Visual Studio 2008 using VB. I have a Access Database and i have made all connections success and Viewing data in Grid Control Successfully.i am editing SQL Server Database Successfully using Same pattern and Code.when i use Access Database using Same code and Dataset there is no change apply to the Access Databasebut when i change or add new record to a Databa Table i have no error but when i check the Database there is no change has been updated or no New record added to the database.
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
I created a dataset and i am using OleDbDataAdapter to insert new values to access database. But when i close the program and after open it, values are not in the database. How can i solve this problem? Also, i have another problem. When i write codes that
Well here I am again, could really use some expert eyes on this. I've got an update statement for access 2007 and when I run it it's giving me a "No value given for one or more required parameters." error. I've spent at least 2 hours on this now and searched all over the place and none of the suggestions I found are fixing it. I've got an insert statement to the same table that works fine, I took this same syntax for the update statement from another project where it was working perfectly. I've verified the spelling of the table and column names, As best as I can tell there are no reserved keywords being used and I've eliminated any spacing from the names. I've even tried updating a single row with no variables, just like for like data directly from the table and it still throws the error.
Code: Dim DAEdit As New OleDbDataAdapter Dim update As New OleDbCommand("UPDATE ActiveContracts " & _
the problem is that the migrating tool im using tries to import the foreign keys... but it cant because the name for the relationships generated by Access is too long...So im trying to rename the MSysRelationships .. where the relationships name are....here the code
Dim connection As New Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & DataSource & ";Jet OLEDB:Database Password=" & Password) Dim c As New OleDb.OleDbCommand("Select * From MSysRelationships", connection)
I'm having problems with the updating of my datagridview. I can update to the MS Access database. The problem is I cannot update to my datagridview!-[code]
I am trying to update a field in a MS Access database and it appears to be working but it keeps coming up with an error on the last line "executeNonQuery", I think it has something to do with data type but not sure.
Using conProduct cmd1 = New OleDbCommand("UPDATE tblSODetails SET StartTime = " & soStartTime & " WHERE SO = " & CurSO & "", conProduct)
I have created a datagrid and populated it with data from a database. When the data is changed, I try to update the database and I get an error without any description of what the error is.to fill the grid:
dsjobs.Clear() With dbAdaptr 'populate jobs table Dim SQLStr As String = "Select * from jobs"
How can I do that? I already have the code I'm working on but it seems that it doesn't work really fine. I input an id number(unique) on a text box and click the search button. The entries that corresponds to the id number is then displayed on the other text boxes. And then I try to edit one of the entries manually(changing its letters or name) then I click the update button.
Here is now the problem: It really updates the entry but it makes a mirror of the entry with a different id number(maybe automatically generated). So basically the ms access database will now contain the old entry and the updated version of the entry.
im trying to add a new record to my DB and im gettin an error on updating the row to my DB De instructie INSERT bevat een syntaxisfout.If you have anny questions or want to have alook at the full application, i can send you all of the code i have...
I am having trouble saving data from a VB Windows form to an Access database. I can retrieve the data ok but when I try to save back using the test code snippet below, I always get a Syntax error at the Update line no matter how I code the update. I have used the default Item 1, Item 2 column headers in the Acess database table.
Public Class Form1 Dim con As New OleDb.OleDbConnection Dim dbProvider As String
Code to insert and update the record. I read the record sucessfully but without exception applied. I want also use the try catch statement for catch exception if generate. I want to know only sql query with in the try catch or datset connection adapter all in the try catch.
I am trying to update a Database via a form. In the update button I Have the below code HTML Dim bm As BindingManagerBase = frmFindCustomer.DataGridView1.BindingContext( _ frmFindCustomer.DataGridView1.DataSource, frmFindCustomer.DataGridView1.DataMember) dr = CType(bm.Current, DataRowView).Row 'This gets a reference to the row currently being edited 'dr.BeginEdit() [Code] ..... I do not get any error messages but the database is not getting updated.
I am an experienced VB6 programmer trying to adapt to the vb.net mindset. I am using Visual Basic 8 and I am using Microsoft Access 2003 as my database. I have spent the past 6 hours trying to do something as simple as updating my database for the following event. Everything I find on the net is either using SQL server or bound controls (which I don't think can work here).
I have a login page (gets the data from the database)( which then opens my main form. This works fine. I then have a menu item that allows the user to change his password. After doing all the appropriate validity checks, the program is supposed to save the new password back to the database. This does not work. I have a textbox where the user enters the new password. How do I set up (in code) the appropriate objects to then save the data. The pertinent code is below. I have left off the connection string (cn) as I know it works.
I have a form in vb8 that is set up as follows: I have a table in my Access database calledUsers that has a name and a password (encrypted). Using the toolbar I created aBindingSource with a name of UsersBindingSource and a dataSource ofUsers Using the toolbar I created aDataset called with a Name and a DatasetName called Users_Dataset Using the toolbar I created atableAdapter called UsersTableAdapter I added two textboxes on the form and changed theirDatabindings...Text property to the corresponding field in the Database.
How to now update the database when I click Update. What the program needs to do first is encrypt the Password before saving it. I wrote the code in the TextBox2.Lostfocus event to encrypt the data a place it back into the TestBox2 field. The only samples I find on the net refer to DataGridView controls (which work) but I don't want to use them. How can I get the database to accept these changes as well as changes to radio buttons or comboboxes?
i have access database. its data is laoded to datagridview in vb.net langauge. i want to edit some data in the datagridview and this edit should be save in the database too when i press button edit. i used this code but it is edit for only one time and if i do any action before it it will not work.
Dim ConnString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:UsersHaidarDesktopcustomer listNewFarahnetFarahnetCustomers.mdb" Dim SQLString As String = "SELECT * FROM customers ORDER BY Fname ASC" private da As OleDbDataAdapter
I've been perusing some hep forums and some help books but cant seem to get my head wrapped around this. My task is to read data from two text files and then load that data into an existing MS Access 2007 database. So here is what i'm trying to do:
Read data from first text file and for every line of data add data to a DataTable using CarID as my unique field. Read data from second text file and look for existing CarID in DataTable if exists update that row. If it doesnt exist add a new row. once im done push the contents of the DataTable to the database.
What i have so far:
Dim sSQL As String = "SELECT * FROM tblCars" Dim da As New OleDb.OleDbDataAdapter(sSQL, conn) Dim ds As New DataSet
[Code].....
In constructing my table i use "SELECT * FROM tblCars" but what if that table has millions of records already. Is that not a waste of resources? Should i be trying something different if i want to update with new records?
Once Im done with the first text file i then go to my next text file. Whats the best approach here: To First look for an existing record based on CarNum or to create a second table and then merge the two at the end?
Finally when the DataTable is done being populated and im pushing it to the database i want to make sure that if records already exist with three primary fields (DriveDate, DCode, and CarNum) that they get updated with new fields and if it doesn't exist then those records get appended. Is that possible with my process?
I have been working on this for a couple days now, and I am ready to throw my computer through the window.I am still rough around the edges with Visual Studio 2010.When I run the project, it works just as it should. the fields populate with the selected items from the .accdb, and I can navigate just fine up and down the rows. The problem comes when I try to update the info. When I change a value and hit the update button I get the following ERROR: System.Data.OleDb.OleDbException was unhandled Syntax error (missing operator) in query expression '((PID = ?)
I would like to update an Access database at a particular time.For example:I have a startdatetime = 11/08/2011 8:00 AM.I want to update the database when DateTime.Now = Startdatetime.AddMinutes(30)I thought about using a Timer, but i am not sure how to update the database when the timer stops.Note: This statement will be in a loop, because I will be updating e.g For i = 1 to n
I want to update data into an access database containing three fields of text type. so in the design i added three text box and one button.........on button click the data corresponding to textbox3 will be updated by textbox1 and textbox2. then i coded it as follows:
Imports System.Data Imports System.Data.OleDb Public Class Form1 Dim con As OleDbConnection
[Code].....
It is running and executing good........But finally the data in the database is not updated.........Hence i say the above code does not work......
I have been tasked with writing a program for our yearly reviews. We want all of the information gathered in the form to be submitted to an access database. I have created the form and the database. I can send info to the database but it is put on a new line everytime it is submitted. I would like to check the first column of the table to see if the user login is already there. If it is there I would like to update the information. If it is not there I would like to create a new row. This seems simple, but I can not figure out how to see if the user login is already there.[code]...
I am developing a VB.Net windows application to replace a legacy Access database. I started with the legacy database (.mdb) and made changed to tables (like deleting unused columns) and changing anniversaries from 3 columns (day, month, and year) to DataTime etc recognized the need to import data from the legacy system at the time when the new one goes live and wrote an import dialog to do this. And this is where my problem is. The importer correctly imports the data and writes new tables, but each time I restart the application I have the old data back.
This is the approach I took: In the load event I fill each tableadapter in the new (target) dataset as follows: Me.ClientInfoTableAdapter1.Fill(Me.DataSet1.ClientInfo)
