Access Database Is Not Updated?
Dec 2, 2009
I'm trying to write my first application which connects to an Access db. It took me hours to understand this, but I figured out that, if during the creation of the connection I chose to copy the mdb file in my project directory (VB asks this), I get that the database is not updated. Everything works, except the save button which saves new rows in the db. If I answer no, and the original mdb file is used, the database is correctly updated as expected. Is there a reason for this? Why is this happening? Shouldn't the database bu updated anyway?
View 2 Replies
ADVERTISEMENT
Oct 26, 2011
VB2008 with MS Access Database updated related data ?
View 9 Replies
May 17, 2009
currently i had a program which working fine when its running in the solution explorer,but after published,problem comes.my datagridview cant show updated data while my database access already update...my datagridview only show existed data.could it be my datagrid problem?i get my data programmatically or is my INSERT command doesn't update the dataset?but in the solution explorer does show the dataset was updated. [code]
View 3 Replies
Oct 10, 2010
i try to update the table but not sucessful. In access database the following fields with datatype as under;
Parameters=text
Value=Number
Units=text
[code].....
View 23 Replies
Mar 20, 2010
Let's say I roll out version 1 of this project for many users. As time goes by I update the code, change the Access db strucutre here and there, and would like to roll out version 2.What is the best way to do this?Is there an easy way to get the differences between version 1 and version 2 of an access db?
View 6 Replies
Apr 26, 2011
i implemented a RSS for big company on loacal area network attached with sql database to feed internal news.everything working fine.but i faced a small problem when the database changed the RSS doesn't take the update unless the user close the RSS and start it again.how can autorefresh the rss without closing it when the database changed.
View 1 Replies
Mar 19, 2010
Using this code i cannot insert data in the database . it gives no error but no row is created in the data base
Imports System.Data.SqlClient Publi ClassForm1 SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=
[code].....
View 24 Replies
Nov 24, 2009
Ive never done a database before and i found this in one of my books... I think it should work. The part of the program that is in bold is the issue i get an error that says "Update unable to find TableMapping['Table'] or DataTable 'Table'." From the da.Update(ds).. ive been trying to figure this out for hours!
Public Class retailForm
Dim tempPrice As Double
Dim dbProvider As String
[code].....
View 1 Replies
Apr 20, 2010
I have a datagridview bound to bindingsource. Whenever I delete a row, it is not updated to the underlying database table. I have to click elsewhere in the form to cause the dgv_rowValidated to fire where I have the following code in there to push changes to the database:
bs,EndEdit
Dim cb As New SqlCommandBuilder(myDataAdapter)
myDataAdapter.Update(myDataSet)
Normally, where do I place such code for updating when comes to deleting a row in datagridview? I noticed userDeletedRow event does not fired when I am deleting the last row in a one row datagridview.
View 9 Replies
Jul 17, 2009
The label never get updated when it is assigned a new value from DB. I try with label.refresh method and also update method but the label still never get updated.
View 2 Replies
Mar 24, 2010
I've updated my database...
And all the information goes in fine, and an Auto-Number is allocated.
Do I need to re-read the database to find & display this auto-number?
Where do I begin?
View 15 Replies
Jul 1, 2009
part of my code is in below
[Code]...
I would expect to see the path.Path include the new record, however, I also notice that tempnextgen also include the new record. Can anyone help me out on this issue? Why the tempnextgen got updated as well, how to prevent this unexpected operation?
View 3 Replies
Jan 14, 2010
I have invoice form bound to a bindingsource and bindingnavigator. In the form I have unit price, quantity and total textboxes. The total textbox text property is set to total.text = quantity.text * unitprice.text in the textChanged event of both quantity and unitprice text boxes. The result is displayed in the total textbox. But when i hit save button on the bindingnavigator it is set to null and not saved to database. [code]When I used msgbox to see the value of total textbox before bindingsource.endEdit() it is the correct value. but after the code bindingsource.endEdit() it is null. I checked the databinding property and it is correct. What is the problem.
View 1 Replies
May 26, 2009
I've created a VB.NET Windows Form application which pulls info from an MSAccess database via datasets and tableadapter. When the user makes a change to the data, I use the Update method of the tableadapter to send the changes back to the database. This all works fine in the Visual Studio 2008 IDE, but once the build is done and the application is installed, I run into problems. The application keeps the original data and will not read or write to the database, although any changes I make through the application are mysteriously saved somewhere. If I make changes directly to the database using MS Access - which I need to be able to do - those changes don't show up in the data pulled into the application.
View 13 Replies
Jan 16, 2012
I can figure out how to do this, but Im not sure what I should be looking for. I have a database that gets updated about once a month, and when it does, it changes the name of the database file to match the date and time the new database was created.
The file name always starts with DB and the rest of the file name structure is DBYYYYMMDDHHMMSS (After the seconds, the file name is the same for all of the databases)
There are a few things I am trying to do.
1.I want to be able to search the update folder for whatever database is there
2.Trim the file name to return the database name as DBYYYYMMDD
3.Search the local database folder for the specific file name and return it in the same format as the update
4.Compare the two file names and choose which decide if one is newer than the other based on the date
What I need to know is what this would be called and what I would need to use to accomplish this.
View 4 Replies
Dec 9, 2010
how to get the updated database data and print into crystal report using VB.net?
Dim rpt As New CrystalReport1()
Dim myConnection As SqlConnection
Dim MyCommand As New SqlCommand()
[Code].....
View 2 Replies
Aug 25, 2010
I can edit the values in the dgv cells manually, add rows, delete rows all without problem and then update the database.My problem is in one form where I want to allow the user to filter the rows in the grid and then enter a value in a textbox and programmatically update all the cells in one column with that valueI can update the rows, and see the changes in the datagridview. When I try and update the database (using UpdateQuery on the underlying TableAdapter of the datagird) only some of thechanged rows are being updated I though it might be related
View 9 Replies
Jun 4, 2011
I can save my data to access database and in the access database field I set it to date/time.But problem is when I get the value out from the database.. the format is always month/day/year hour:minutes:seconds example today: 5/2/2011 12:00:00..How to get the value into listview becoming May/2/2011 without the hour..Here's my code to get it from database ListView1.Items(i).SubItems.Add(dt.Rows(i)(14).ToString).The second problem is.When I would like to edit, how can the datetimepicker get the listview value ? [code] info: using access 2003 (.mdb) the Date of Birth field has been set into Date/Time.
View 2 Replies
Oct 15, 2011
I have an application that has an Ms Access 2007 DataBase which runns great if access is installed. Is there any code that I can use in vb that I would be able to run access with out installing it.
View 5 Replies
Mar 30, 2009
I have two Access database, say database One.mdb and Two.mdb. I want to use VB2005 to export tblCustomer from One.mdb to Two.mdb, and replace the existing tblCustomer in Two.mdb, during run time. I basically want to simulate the export function that is available in MS Access (which can export one table from one Access database to another) with VB2005 during run time. I can think of a way by querying the table to a dataset and then delete everything on the other database before filling the table in that database with the dataset
View 1 Replies
Jun 22, 2010
I am trying to import data from an access database to a access database that my project uses I am having problems with combo box fields in the database with the data. I want to import what is displayed instead of the numerical key value. Example: The combo box displays employee names but the value stored is the key value from the employee table so instead of importing John Doe it imports 2 is there a way to make the actual name instead of the number?
View 4 Replies
Mar 14, 2011
I'm writing an asp.net page with a simple registration form that connects to my access database and inserts the values in the table. So I have my database, my registration page, everything looks fine in my code, but there's a syntax error I can't seem to figure out. When I go on my webpage and click submit, it says : Syntax error in INSERT INTO instruction.
Here's my code:
<%@Page language="vb" explicit="true" debug="true"%>
<%@Import Namespace="System.Data"%>
<%@Import Namespace="System.Data.OleDb"%>
[CODE]...
View 5 Replies
Apr 22, 2010
I am using the code shown below to compare two Access databases with two fields each and write the results to a third Access database. I am getting an error at the "Do While DMReader02.Read = True" line: "Invalid attempt to call Read when reader is closed." Why would the reader be closed at this point if I am using different DataReaders in the two loops?
Imports System.Data.OleDb
Partial
Class Form1
[code]....
View 2 Replies
Feb 16, 2012
I'm using VS 2010, and I did a project using VB and a database in Access. The problem is that when I try to put that "application" on other computers, sometimes, is not working. I thought it can be because on these computers they don't have access, but on one computer, is running another app which is using Access and there is no Access installed. How can I check if my application requires Access to be installed or not?
Here is a example of how I did the connection:
Public AccessOLEDBConnString= "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & myfullpath & ";Jet OLEDB:Database Password=password"
Function getConnection() As OleDb.OleDbConnection
[CODE]...
And when I want to have access at the data I'm doing like this:
dim conn as Oledb.OledbConnection
dim sql as string
dim ds as Dataset
[CODE]...
View 9 Replies
Mar 16, 2011
(using VB2008) I am trying to automate Access from VB.Net. To do this, I added two libraries to my project, Microsoft.Office Interop.Access v12.0.0.0, and dao v10.0.4504.0. This seems to give me all the necessary commands, yet when I tried to open up an Access database via the following code:
CODE:
View 18 Replies
Oct 13, 2010
I have a similar problem posted in the forum similar to this : started learning VB. I am not able to get my example code to work to access an Access database through automation. The author of my book suggested that I might not have the correct Jet 4.0 engine. The specs I have are: MSJet40.dll, Dated 7/14/2009, Prod Ver 4.00.9756.0.
View 3 Replies
Mar 31, 2009
I have two Access database, say database One.mdb and Two.mdb. I want to use VB2005 to export tblCustomer from One.mdb to Two.mdb, and replace the existing tblCustomer in Two.mdb, during run time. I basically want to simulate the export function that is available in MS Access (which can export one table from one Access database to another) with VB2005 during run time. I can think of a way by querying the table to a dataset and then delete everything on the other database before filling the table in that database with the dataset. However, there should be something simpler and faster than that, shouldn't it? Any idea?
View 6 Replies
Nov 5, 2010
I have this problem, I can create a setup for my app/database but everyone can open the backend file which is an MS Access database. I want it so we can only access the database using the frontend app.
View 2 Replies
Sep 9, 2010
I coded a program to access a Microsoft Access 2010 database. The program is written using Microsoft Visual Studio 2010. I get the error message that the database I'm trying to access is in an invalid format. look at the code below to see what I missed. The error is in the datasource statement.
[Code]...
View 6 Replies
Aug 14, 2011
I have 2 access databases in access 2007 I want to be able to up date one from the other.
View 3 Replies
