Not A Valid Update Method In Datatableadaptor - Saving Access Database?
Jul 4, 2009
I'm struggling to work with data in VB 2008, and find it extremely complicated! At first I couldn't even get a database to load, as VB 2008 kept complaining it was created with an older Jet engine.OK, I converted it to a newer Access format that VB 2008 finally accepted.
In trying to find out why changes weren't saved, I found a common problem was VB 2008 wiping out changes.OK I have told the compiler not to copy the older database file back over but to copy newer.Updates then supposedly happened --- no errors were reported --- but the changes were still not saved.It appears the update method didn't exist in the datatableadapter, but I got no error messages about that.
No update done.
I've used the tools to configure the dataset and datatableadapter.Automatic generation of methods like update, add new, delete, etc. were supposedly done.Now, when trapping the error, I'm told the update method isn't a valid one.I found little information on that. It suggested primary keys could be a cause, but adding or deleting a primary key has no effect.I can see the fill method, and it works fine.I can't see the update method. (Apparently it is in SQL which I don't know anyway.)
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Mar 19, 2012
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]......
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Nov 15, 2011
update statement, i am trying to update a row within a access 2007 database here is my code.
[Code]...
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Jun 15, 2012
Which method is professional to insert, update, delete data using either MS Access database or SQL database?
1) Using wizard to connect the database
2) Writing code manually such as
"INSERT INTO CUSTOMERS(CNO, CNM, CTY, TEL, TDT, NTS, UID) VALUES(@CNO, @CNM, @CTY, @TEL, @TDT, @NTS, @UID)")
I need to insert data from one form (Collection_Form) to 2 database tables. Like, Collection form data to be added in the following 2 tables:
1) Customer_Account
2) Collection_Account
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Jun 26, 2009
What is wrong with this code. It does not update the access database and no error.
Dim conn As New OleDbConnection
Dim sqlQRY As String = "SELECT * FROM StdMaster WHERE StuNo = " & txtStudentNo.Text & " ORDER BY StuNo"
[CODE]...
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May 2, 2010
In my project the "teacher" must enter grades in the Grades database then save it and click the Semester Average button(btnSA)to display the grades in the database. Well I can't the the data to save. After I completely fill in the grades and click the save button in my tool strip I get the following error "OleDbException was unhandled: Command text was not set for the command object"
Public Class Form1
Dim connStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & "Data Source=GRADEBOOK.MDB"
[code]......
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Dec 1, 2011
i am getting this error and i cant spot the mistake: No value given for one or more required parameters.
my code:
Sub UpdateCustomer(ByVal HCNNO As Double, ByVal Forename As String, ByVal Surname As String, ByVal DOB As String, ByVal Gender As String, ByVal PasID As String, ByVal
[code].....
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Jan 28, 2012
rs.Open("select * from CSOptions where OrderNumber = '" & cbstrCurrOrderNumber & "' and OrderLine = " & CBLI, strConn, 2, 2)
If rs.EOF Then
rs.AddNew()
End If
[code]....
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Feb 17, 2009
I have tried it by the following code [code]there is no error in this code, but it didn't work well.so is there anyone who can help me in making it work?
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May 11, 2012
this code worked in every form except this form which I named Reregistration the code is working and every thing but the only problem is that the new generated data is not saved in the actual table
Private Sub btnRegister_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRegister.Click
If txtPassword1.Text = txtPassword2.Text Then
[Code].....
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Nov 18, 2011
Okay what I have saves my stuff to the database. However, when I rebuild my application the previous data is gone. The data is loaded into datagridview using
[Code]...
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Sep 1, 2011
I'm using VB.net Express with SQLExpress. I've got the reader working in my program, but I'm trying to find the best way to go with SQL access in my VB program. I need to be able to write fairly sophisticated SQL queries from many different tables and then either load the data into VB arrays or? in order to do some calculations and field selection. I'm not displaying any data on the screen, like so many examples out there seem to illustrate.
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Apr 20, 2010
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
[Code]...
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Jul 6, 2010
My program runs with no errors, but the actual .accdb file does not reflect changes when I make them in the running program. Also when I fill in the text boxes and click the "Add New Item" Button, the "ID" text box displays a -1. "ID" is the primary key in my Access Database.
Imports System.Data.OleDb
Public Class addMemberForm
Inherits System.Windows.Forms.Form
[code].....
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Oct 7, 2009
I've seen used the datagridview to save the changes.
I don't use a dgv, but rather I connect directly to access and when a text field has text in it, it takes that text and searches, and updates various text boxes with the according information (finds a row, and takes all the data in the columns and adds it into their respective box). There are approximately 5-7 text boxes being used at the same time, and only a few will be changed.
How would I go about updating and saving through the VB program?
Here are some relevant pieces of code:
Dim con As OleDbConnection = New OleDbConnection("Provider=Microsoft.jet.oledb.4.0;data source=C:\InventoryMusic.mdb")
[Code].....
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May 28, 2012
I have a function that i use to save a datagridview row to an access database (which works fine) but i was wondering any one know what i should look up to figure out how to set the row that i am saving to a colour IN the access database. So the row that i save is say red in the access database.
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Mar 20, 2011
How to save image from picturebox1 to access database.
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Mar 16, 2011
am pretty new to VB and i am slowly teaching myself .I am working on a project at the moment which will write to an access database. I have created the database with contains about 40 fields. i Have a form which the user inputs the data into whose controls are bound to the corresponding fields in the database . I have been reading up on what a could but the more i read the more lost i am getting.
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Jun 6, 2010
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
[Code]...
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Aug 14, 2011
Private Sub Table1BindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Table1BindingNavigatorSaveItem.Click
Dim dg As DialogResult = MessageBox.Show("Would you like to continue saving your changes?", "Save Changes?", MessageBoxButtons.YesNo)
[Code]....
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Oct 24, 2011
I have a MS Access database file that I can view with a DataGridView, but I can not save the changes made. User should be able to modify data, and when pressing the "Save" button, these changes should be reflected on the database. That is not happening.I know this is a common question, but I have read dozens of pages trying yo get this to work.
Imports System.Data.OleDb
Public Class Form1
Dim con1 As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=T:JaimeTest.mdb;Persist Security Info=False")
Dim sql As String = "SELECT * FROM Table1"
[code]....
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Apr 4, 2011
I keep getting an "Syntax error in Insert Into Statement." error message when trying to save an image to my Access database.
Imports System.IO
Imports System.Data.OleDb
Imports System.Drawing
[code]....
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Mar 18, 2012
I'm working on a simple data logging program, and I have little to no database experience. I wrote a little VB forms app to log the data to ms access and then graph the data, but I'm having trouble with adding records to the database. First, I created a simple one table database in access. Then, I added the database to the project as a data source, and gave it a data set using the wizard. Right now my code looks like this:
[Code]...
There are no problems during build or run time, but I do not see changes to database after the program runs.
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Apr 17, 2009
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]
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Feb 27, 2011
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)
[Code]....
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Mar 27, 2009
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"
[code].....
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Dec 6, 2009
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.
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Oct 20, 2009
I'd like to export a table from Access to a text file (or a spreadsheet) using VB code in Excel 02. I'm using the transfertext command but my code runs through without actually doing anything or throwing up any errors. If I swap the code round and change Export to Import and move the data into the text file manually then the code will happily import the table into Access.
Sub Export()
dbfile = "C:XLSMDBTable.mdb"
Dim a As Object
Set a = CreateObject("access.application")
[code]....
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Sep 28, 2009
I have an issue with a data base updating it won't update for me in debgging mode it is stopping here on this bit of code which is highlighted in red. the error which comes up is .(update requires a valid update command when passed datarow collection with modified rows.)
Public Sub UpdateDataSource(ByVal ChangedRows As database.dataset1)
Try
'The data source only needs to be updated if there are changes pending.
If (Not (ChangedRows) Is Nothing) Then
[CODE]...
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Oct 6, 2010
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.
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