VS 2008 Updating Access Database Error
Jul 26, 2011
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.
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May 25, 2011
I am trying to make changes to parts of an Access table but can not get the database values to change.I am able to get the datasets and things in VS to change, but the database never shows the changes.
I Have:
' Create an instance for the payrolltable
Dim dt As New MsPeachDataSet.PayrollDataTable
[code]......
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Mar 24, 2010
I have a datagrid view that displays information from a table. Changes I make to the data grid view are not saved. I have a button called btnsave but I have no idea what to put in the click event to save changes to the DB.
vb
Dim ConnStr As String = String.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0}", DataDir)
Dim conn As New OleDb.OleDbConnection(ConnStr)
Dim sql As New OleDb.OleDbCommand("Select * FROM USERS")
Dim dt As New DataTable
[Code] .....
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Jun 18, 2012
I'm having trouble updating my access database using DataGridView1 on my form. I created a DataGridView on my form linking it to an access database data source. At run time, the DataGridView shows the content of my access database. When I edit the database data in DataGridView, it looks like the database is being updated but when I close the form and reopen, the database is not updated. Do I have to write code and assign it to a button to update the access database? Is there a way to update the database once a new value is entered in the DataGridView? Am I missing a setting that does this automatically?
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Apr 8, 2011
i m having problem while updating my database... In this code when i delete records then it will deleted but it can't show updated data..for viewing new updated data i hav to again open the form ... so is there any code which i miss??? to update database @ runtime??
[Code]...
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Jul 28, 2009
I have spent several hours trying to delete a row and insert a row into an Access database using the OLEDBDataadapter and dataSets without any success. I don't get any errors it just doesn't update the datatable. Here is the last version of the code I have been trying to get to work. I have done a lot of searching and have
Data save
Private Sub SaveNumDte(ByVal ltoNum As String, ByVal ltoDate As Date)
Dim numTotal, x, MaxRows As Integer
[code].....
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Aug 25, 2010
I have an access table that I'm loading into a dataset, then I'm binding the dataset to a bindingsource. The bindingsource is the datasource for a datagridview. I can use a command builder to update the entire table, but I need to update all the rows (or changed rows) in specific columns. I have a column called "dPrint" which is Boolean. I'm not sure how to use the bindingsource as my datasource in an Update Command. I've tried this:
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Aug 22, 2010
Only my local dataset updates when adding, deleting or editing records.The Source Database is supposed to update on issuing DataAdapter. Update(dataset )However, when I check my source database after running the operations it remains the same as the original.
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Mar 25, 2012
I'm trying to update data to a Access data base using the following [code]...
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May 5, 2010
I have the following update statement to save data to an access 2007 DB:
[Code]....
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Apr 2, 2010
I'm having problems updating my existing access database in vb. Whenever I exit my program, the changes made won't save. How can I correct this? This is the code I have so far...
Code:
Private Sub Customer_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'AutioEssentialsDataSet3.Customer' table. You can move, or remove it, as needed.
Me.CustomerTableAdapter2.Fill(Me.AutioEssentialsDataSet3.Customer)
[code].....
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May 14, 2009
I wrote this code in asp.net(vb):
dim dbconn as New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;data source=" & server.mappath("../kri1.mdb")) Dim DBCmd As New OleDbCommand Dim DBAdap As New OleDbDataAdapter DBCmd = New oledbCommand("INSERT INTO tabela (@id, @nesto, @ime)", DBConn) DBCmd.Parameters.Add("@ID", OleDbType.smallint).value= 6 DBCmd.Parameters.Add("@nesto", OleDbType.varchar ).Value = "2" DBCmd.Parameters.Add("@ime", OleDbType.varchar ).Value = "3" DBCmd.Connection.Open() DBCmd.ExecuteNonQuery()
and nothing happened in my database and there's no compilation error?
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Mar 29, 2009
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?
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Jul 13, 2011
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]...
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Jan 27, 2012
I have taken over support of a VB .Net application that makes use of an Access database. Now I discover that the developer who wrote this application did not create any unique indexes on the primary key columns for the tables in the database. So none of the primary key fields are actually flagged as being primary keys in access and so no duplicate checking is being performed by Access. Furthermore, the primary key columns are not being auto-incremented with an AutoNumber type in Access, rather the developer has used queries like this to insert rows into the tables:
INSERT INTO Users (pkid, FirstName, Surname, City)SELECT iif(isnull(max(pkid)),0,max(pkid))+1, [@strFirstName], [@strSurname], [@strCity], FROM Users;This application is generally run as a networked application with up to 40 people using the application simultaneously, and combined with design issues already mentioned, this has resulted in serious concurrency issues with several users being assigned the same primary key value. This == BIGNow I need to sort this out (guess what I will be doing this weekend!! Great.). I have thought about maybe using a mutex around the code that calls the Access insert queries; not the neatest of solutions, but it would be the quickest. Ultimately though, I would like to have the database corrected and have proper primary key values in place. But the application is currently running at about 15 different sites, so I need to do some sort of batch update of the database.
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Apr 21, 2012
i am trying to update the info in my access database and i keep getting a syntax error. This is my first database program and i found a site online that showed my how to do it but when i get to the update it keeps giving me the syntax error.
Private Sub CreateBT_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CreateBT.Click
Dim con As New OleDb.OleDbConnection
Dim dbProvider As String
[code]....
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Jan 5, 2010
Here is the error: [URL]
here is my code: what can I do to solve this error
Try
If MessageBox.Show("Save and update database?", _
"Confirmation", MessageBoxButtons.YesNo) = _
[Code]....
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Aug 23, 2011
This is my code for update event
Protected Sub GridView1_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles GridView1.RowUpdating
Connection.Open()
[Code]....
it is deleting and fetching fine but while trying to update it shows nullreferenceexception was unhandled by user code in this line:
a = Trim(empname.Text.ToString)
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Mar 11, 2010
I am having a problem updating an access database with new information from an updated dataset. the database consists of 4 columns: User_ID, Login_Name, Password, Access. The following code makes a connection to the database, fills a dataset with the data from the database, reads a txt file with user name and passwords, and should update the dataset and then the database. However, I keep getting an Syntax error on the INSERT INTO statement on the datest.Update(dsUser,"User") line. I have found multiple posts on here showing the correct syntax of how to update a database, but I can't seem to get it to work.
[Code]...
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Jul 24, 2011
I have been trying to update my database using datagridview control.my code below gets the data from database to datagridview but when i hit the update button ,,i get an oledb exception saying error in insert into statement .
Imports System.Data.OleDb
Public Class Form3
Dim cnxnString As String = ("Provider=Microsoft.JET.OLEDB.4.0;" & _
[Code].....
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Jun 4, 2009
I've been browsing these forums for a day looking for the answer to this, so far nthing has fitted.I've got an access 2000-2003 database containing a whole pile of data for a VB coded application to use. One of the tables in the database needs to be able to be updated with data from the application.The new data is stored in the app as a datatable. I need to replace the original table in the Access file with the datatable in the App.
I'm changing as many as 60 values at a time, so defining these as parameters in an OleDbCommand would be impractical and frankly ridiculous.
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Jan 13, 2011
I'm developing a program utilizing an Access database and Visual basic. I'm having a problem saving the data I'm adding to the database. I'm entering the data into the database table with text boxes and making a new row and adding it the the table:Database2DataSet.Tables("").Rows.Add(newRow)
I have a grid view for the table, and the new row is added to the table, showing that I'm getting the new information into the table. However, I'm trying to save this new information to the database so its there after I close the program. I've tried using the following but none have worked so far.
[Code]...
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Jul 16, 2009
3. DB2, located on a shared network drive, contains nothing more than the structure of DB1, but which I have updated to include new fields in various tables, as well as some new queries and modules.4. I need to be able to copy whatever new table structure there is, etc, without overwriting the user's existing data.
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Jul 17, 2009
com=new oledbcommand("Select tablename SET Roll=@Roll or Name=@Name or Age=@Age WHERE Roll=@Roll or Name=@Name or Age=@Age")
command.Parameters.AddWithValue("@Name", Combobox1.text)
command.Parameters.AddWithValue("@Age", textbox1.text)
command.Parameters.AddWithValue("@Roll", Combobox2.text)
Is this a correct syntax of updating an access database using parameters?
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Jul 14, 2010
I got an Syntaxerror in my INSERT INTO but i cant figure out why.
[Code]...
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Jan 17, 2012
I have part of an application that reads from a database makes changes to the data then saves the changes to the database.
[Code]...
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Feb 1, 2011
I'm using Access 2010 for 2 small databases for a windows forms desktop application.on Form 1, my datagridview updates Paccounts.mdb correctly as follows:
end_OK:
Try
Me
.PaccountsTableAdapter.Update(PaccountsDataSet.Paccounts)
[code]....
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Jul 6, 2009
I'm currently looking to add a code where, when executed, finds the appropriate value (searches for it), then on the same line, but in a different category, changes the text to 'YES'.
[Code]...
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Oct 7, 2011
how to update fields in an Access database through VB. What I'm supposed to do subtract the quantity of the daily orders from the inventory quantity. My textbook is a little bit vague at this point, because the only way it describes updating the DB is manually through the BindingSourceNavigator. I don't want to enter it manually, I want it to subtract the quantity from the orders table.
Public Class frmMicroland
Private Sub frmMicroland_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
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Mar 11, 2010
:( I am have been trying to update changes from my vb.net program to an access database file and it simply will not work. I have am using table adapters. I'm not familiar with SQL so i can't go that route. It updates the dataset fine but not the database...
I have pasted my code below.
Private Sub BooksBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BooksBindingNavigatorSaveItem.Click
[code]....
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