VS 2005 Data Not Updating?
Jul 22, 2009ToTable.AcceptChanges()
If TypeOf Adapter Is OleDb.OleDbDataAdapter Then
CommandBuilder = New OleDb.OleDbCommandBuilder(Adapter)
[code].....
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VS 2005 Updating Client Data Tables When Data Table On Shared Drive Is Updated
Sep 28, 2009I would like to know the best, or standard, way to accomplish real-time client updates in a small multi-user application using an access data table as a data source.
Specifically, this application will be used by 3-4 people. It uses a datatable which is filled on form load and bound to a datagrid at design time. The datatable is stored on a shared drive. The data table on the shared drive is updated in two ways:
1) Users can update the datagrid which then updates the datatable on the shared drive via the data adapter's Update method.
2) A server application does some work on some text files, periodically updating the data table.
I need the clients to reflect the changes to the data table on the shared drive as closely to real-time as possible. I know that the data table stored in memory on the client is disconnected from the data table on the shared drive, so I must query again to get the updates.
I have two questions:
1) Is there an alternvative model I can use which is connected, and which will automatically reflect the updates in the data table on the shared drive?
2) If not, what is the best way to check for changes in the data table (so I can know when to call the data adapter fill method)? I am planning to poll the drive for a change to the .mdb file, raise an event and then fill the data adapter when the event is triggered. I am using this method successfully now to check for changes to a text file in another application, and I know how to implement it
VS 2008 Updating Data, SQL Express 2005?
Oct 6, 2009I have noob question. I made a dataset of a sql express 2005 database using the designer. So it's a typed dataset. Then I declare some tableadapters and fill them.Now I do this to add a record to my dataset:
Private Function SaveOrder(ByVal controlenummer As Integer, ByVal PK_BaanID As Integer, ByVal starttime As DateTime, ByVal stoptime As DateTime) As Integer
Dim orderRow = dsIntveen.tblOrder.NewtblOrderRow
orderRow.Controlenummer = controlenummer
orderRow.FK_Baan = PK_BaanID
[Code]...
Updating A SQL Database From 2005?
Jan 26, 2010I am trying to add records to a SQL database from a form in Visual Basic. When I first started my project, I was using a MSAccess database, but decided to switch to a SQL database. I have updated all my data connections and everything seems to be working fine. I can view the database from the project, even run parameterized searches with no problem.
WHen I try to add a record, there is the problem. I can add information, get a "update sucessful" message, and no information is added to the database. if I hit the button again, it even tells me the event failed because there is already matching information in the database. here is the code i am using to update the database.
Private Sub BtnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnAdd.Click
'' takes the info entered on the screen and inputs it into the Inventory Table
Dim newRow As AddCupDataSource.TbInventoryRow = Me.AddCupDataSource.TbInventory.NewRow()
[code]....
DB/Reporting :: Updating Client Data Tables When Data Table On Shared Drive Is Updated?
Sep 28, 2009I would like to know the best, or standard, way to accomplish real-time client updates in a small multi-user application using an access data table as a data source.Specifically, this application will be used by 3-4 people. It uses a datatable which is filled on form load and bound to a datagrid at design time. The datatable is stored on a shared drive. The data table on the shared drive is updated in two ways:
1) Users can update the datagrid which then updates the datatable on the shared drive via the data adapter's Update method.
2) A server application does some work on some text files, periodically updating the data table.
I need the clients to reflect the changes to the data table on the shared drive as closely to real-time as possible. I know that the data table stored in memory on the client is disconnected from the data table on the shared drive, so I must query again to get the updates.
1) Is there an alternvative model I can use which is connected, and which will automatically reflect the updates in the data table on the shared drive?
2) If not, what is the best way to check for changes in the data table (so I can know when to call the data adapter fill method)? I am planning to poll the drive for a change to the .mdb file, raise an event and then fill the data adapter when the event is triggered. I am using this method successfully now to check for changes to a text file in another application, and I know how to implement it?
C# - Updating Records In SQL Server 2005?
Jul 26, 2009I have ALWAYS used the SQLDataSource to update my records in my SQL Server 2005 database, so i am not really sure how this would be done in normal code. I am using VB.NET but if you are a C# developer and want to show me some code that is more than welcome as well.
I am using ASP.NET 3.5.My user will see a page with 5 Text boxes with their contact details in. Those details I will get from a SQL Server DB and when they go and change the text in the text box and click submit, it must then save the changes.
This is very easy with the SQLDataSource but how can i code this myself?
VS 2005 In Updating An Access Database?
Jul 17, 2009com=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?
VS 2005 In Updating SQL With .NET Datagrid View?
Dec 18, 2010"I've wrote a code that accesses data from MS SQL server in DATAGRIDVIEW in VB.NET.the problem is whenever i save the changes back to the database, changes are not reflected back
[Code]...
VS 2005 Updating Items In Collections?
Jan 26, 2010have a collection that stores structures of data. my problem is that, after i have populated my collection, i do not know how i could change or update the data stored in the collection.my structure of data looks like this:
Structure tType1
Dim ID as Integer
Dim QTY as Integer
[code].....
IDE :: 2005 Application/Form Code Not Updating
Oct 15, 2007I have a VS 2005 VB.NET Windows forms application that is exhibiting very strange behavior. I can add controls to any of my forms and see them at design time, however when I run the application, it resorts to "old" copies of the forms without the new modifications. Also, the application does not seem to be firiing the correct events - when I put a break on the Form_Load event of my main form - it never fires the event when the application runs. If I change the project settings to start with a new form - it does not recognize the change. Something strange is going on and I am quite frsutrated trying to figure it out.
View 2 RepliesVS 2005 - Error Handling While Updating Contacts
Feb 18, 2011I have a for loop going through customers and for each customer a update a list of contacts. If there is an error updating the contacts I want it to move on to the next customer and if there is an error in the customer update I want it to move on to the next customer. At the moment if I get an error it bombs out of the routine. Here is a simple example:-
For iRows = 0 to oledscustomers.tables(0).rows.count - 1
For iContactRows = 0 to oledscontacts.tables(0).rows.count - 1
'make some changes in here.
Next
Update Contact Table
'Make changes to customer tables and save them.
Next
If I get errors in the contact for loop or the customer loop it comes out of the routine altogether. I just want it to either continue to the next contact or customer.
Updating A Software Developed In .NET 2005 - Windows Installer
May 17, 2010I'd like to know which would be the best way to deploy updates of a software developed in vb.NET, using Windows Installer. What do i have to change? Upgrade code? or Product code?
[Code]...
SQL CE - Data Not Updating?
Mar 5, 2011I'm using the following code to update a SQL CE database:
VB.NET
Public Sub SaveOldEntry(ByVal duration As String, ByVal checkinDate As String, ByVal receivedBy As String, ByVal platformName As String, ByVal serviceTag As String, ByVal
[code].....
Data Not Updating To Database
Aug 16, 2011I've seen similar problems posted on this and other boards, typically with a bunch of code checking before its realised that that database itself is being copied to another directory and run from there. Apparently this is managed via the database properties, copy to output directory settings. In my case I have tried all three options, with no change in result. After "saving", inspection of the actual database via the server explorer shows no changes have actually been committed.
I am getting to a point where I need to start entering large amounts of data into the app and have at actually save to the db for deeper testing.
I noticed this behavious first when using an .accdb and it has persisted through my exploration of SQL(.mdf)
db Output Option Selected / Result
always copy... data changes do not persist between debug runs and is not entered into actual database
copy if newer... data changes do persist between debug runs but is not entered into actual database (checked via server explorer)
Do Not Copy... generates the below Error on execution
System.Data.SqlClient.SqlException was unhandled
Message=An attempt to attach an auto-named database for file C:UsersXXXDesktopVisual Basic ProjectsSQLtestWindowsApplication4 - CopyWindowsApplication4inDebugMyDatabase.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
Updating A Database / Data Set?
Feb 3, 2012Basically I want to be able to save any data I enter into my data grid / dataset ermanently , so when i close the program or restart it the data I previously entered within the grid will be present.This is what I have so far
BindingContext(CustomersDs, "Customers").EndCurrentEdit()
OleDbDataAdapter1.Update(CustomersDs) is called Shop.mdb )
[code].....
Updating A Label With Data
Mar 11, 2010I have Data coming in through a serial port and it consists of pretty much all numerical values except for a few begining response characters. Its a Load Cell which spits out Tension in Pounds. I'm making a simple terminal program with the ability to log the Incoming Data for record keeping and data plotting. I want the incoming Tension to be displayed on the screen real time.I can get it into a text box and have it scroll indefinetly as it updates the data,but I'd like to keep it localized in one Label. I can display it in the Label but it wants to scroll down as it comes in. I want to keep it refreshed in one spot if that makes any sense. Heres what I have thus far. It will put it in the Label but wants to scroll like in the textbox. For example if I send #00F0 followed by a carriage return it replys back with whatever is displayed on the Screen which usually is the tension.it says "01TK 00.074 LBS" no quotes.. for a reply.I'm assuming it needs to be stripped down to just the numeric characters first.'here is what gets sent to the Load Cell to tell it to output data fast as it can to the serial port.[code]
View 5 RepliesUpdating Data From A DataGridView?
Feb 12, 2009I have a datagridview and the datasource is a database query. This query takes data from multiple tables within the database.
When I run the project the data loads to the datagridview fine. However, the system needs to allow the user to update data shown in the datagrid and save it.
I've been messing with this for ages now and it is still not saving correctly. Here is the code behind the save button:
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
Dim strUpdate As String = "Update tblAttendance set Reasonforabsence = @Reason For Absence"
[Code]....
Data Not Saving Into Database While Updating
Apr 8, 2011In my form i have a datagrid view and two textbox the textbox is bind with the datagrid..now when i click the data in the datagrid the data will go to the textbox (that's i want to happen) but when i click the update button and check my database it doesn't change.. i use ExecuteNonQuery to update my data.[code]...
View 11 RepliesHow To Stop Controls From Updating With Data
Nov 1, 2010I have a form with many controls that are binded to a datasource. when some of these values change, they impact aspects of the form itself like the backgroud color or the title. There is a filter applied to it so it only displays certain records (this is important).when I change something and save the data I need to update the filter to show all the previous records plus the current one.All that works great, but the problem is: saving the data or changing the filter makes the controls take a new value based on the new record and go through the subs that each one have to modify the aspect of the form. This happens because if I save the data first, then the current record does not conform to the filter and all the data in the form changes, or if I change the filter first, we go to the first record of the set.
After that I return to the correct record and everything looks fine, but going to all the changes makes the app halt for a moment.Is there a way that I can stop the controls in the form form updating to their binding data while saving or changing the filter in the bindingsource?
No Data Returned After Updating Database
Oct 6, 2011I'm sure im just making a simple mistake some place but i just cant find it. I have datatable which I can and can make changes, save back to the database just fine. But if I reload the data after updating, no data is retrieved from the database. But if I stop debugging completely and then start again, it loads just fine...until i call Update.
Here is some code I am using for testing purposes.
Private myDataSet As New DataSet
Private conn As MySqlClient.MySqlConnection
Dim myDataAdapter As New MySqlClient.MySqlDataAdapter
[Code]....
Reloading Data Grid After Updating?
Nov 2, 2010when im updating my data through a textbox and i save it, i dont automatically show the updated file on the datagrid, here is my code btw, i already tried some code but it aint working
[Code]......
Updating Data From 2 Rows To 2 Columns?
Jun 12, 2011How do I updatezz data from 2 rows to 2 columns?
tool: vb.net
server: MySQL (SQLyog)
I have 2 tables, membercardlist and memberinfo:
table membercardlist:
------------- ------------ ------------
| AccountNo | CardNo | status |
------------- ------------ ------------
| 9999 | B009 | inactive |
[Code]......
Updating Data From A Table Adapter
Apr 18, 2006Honestly I do not understand why I need to write code to update a databse and why it stores it localy. I'd simply rather the system update the individual row after it is scrolled off of.
In either case since I guess I can't do that.
Here is some code in a button on a form
Try
ItemsTableAdapter.Update(NewCreationsDataSet1.Items)
LineCodeTableAdapter.Update(NewCreationsDataSet1.LineCode)
Catch ex As Exception
[Code].....
Updating Data In 2 Tables In The Database?
Mar 9, 2010I'm Using vb 2008 and an access DB.I have 2 tables in the DB which is transaction and products.When a Customer Buy product the transaction will record and the stock of that product will deduct accdg to the quantity bought by the customer. Myproblem is products table didn't update. Stock of that product still didn't change.
View 5 RepliesUpdating Record From Data In Datagrid?
Apr 28, 2009I am trying to update a table based on row selected in a grid (C1TrueDBGrid1.Columns(1).Value), but I am getting the following error:
Update unable to find TableMapping['Table'] or Data Table 'Table'
Code:
Dim ConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=/DataDirectory/AOPT2002org.mdb;Persist Security Info=True;Jet OLEDB:Database Password=testaopupdate" Dim objConnection As New
[Code]....
Updating Tables Data VB 2010?
Sep 20, 2010I have one DataSet and two forms, Customers and Efficiency. When I make changes to the Customers table (Delete a Customer for instance) It does not reflect the changes on the Efficiency table. The default form is Efficiency and I'm calling the Customers form from within the Efficiency form. I make the change in the Customer form, I then close the Customer form and call the Efficiency form back. The data is not updated on the Efficiency side until I close the application and re-open it. what code I need and where to inject this code?
View 14 RepliesVS 2008 Data Bound RTF Not Updating
Jun 8, 2010I have a class which I'm binding to a series of textboxes, date pickers and so on. When I change text in the text boxes, the object updates just fine, and when I then save the data, it has the changes. My problem seems to be with the RTB ... if I bind to the .Text property, it works just fine and updates like any normal text box. However... when I bind to the RTF property... changes to the object don't happen unless I first click out of the RTB... quite annoying. If I edit the text or change the formatting, and hit the save button, the changes don't get reflected in my object. I've even tried using debug statements to track when the property is changed, and I'm not getting the results I desire.
View 7 RepliesVS 2008 Updating Database Data?
Jan 22, 2010I am working on a project that stores data on animals. I am trying to make updates to data already stored there, through inputs on a VB form. A form where all the data is populating the fields shows up and the user can change/update any field. Once they are finished, they click update and the DB is supposed to reflect those changes (Theoretically)However, I wrote the code to do that, but when it runs nothing in the database is changed and nothing gets done, as it seems. No errors appear and nothing goes wrong with the program. It just doesnt change the data in the db.
View 1 RepliesVS 2008 Updating The Database Data?
Apr 24, 2010I am working on a project that stores data on animals. I am trying to make updates to data already stored there, through inputs on a VB form. A form where all the data is populating the fields shows up and the user can change/update any field. Once they are finished, they click update and the DB is supposed to reflect those changes (Theoretically)
However, I wrote the code to do that, but when it runs nothing in the database is changed and nothing gets done, as it seems. No errors appear and nothing goes wrong with the program. It just doesnt change the data in the db.
Here is the code updating the database.
If txtNewID.Text = "" Or cmbRegion.Text = "" Or txtWombatName.Text = "" Or cmbGender.Text = "" Or txtAge.Text = "" Or txtWeight.Text = "" Or txtLength.Text = "" Or txtCommunity.Text = "" Or txtDescription.Text = "" Then
MsgBox("Please fill in all required fields.", , "ERROR")
Else
[code]....
VS 2008 Updating The Database With New Data?
Apr 14, 2009I have two forms in my program, Form1 has ListBox which contains names from the Database.Form2, has textbox and add button to get a new name from the user.but when I click on add button.. i return to Form1 to view the names in the listbox by clicking on view button: ALL NAMES ARE DISPLAYED WITHOUT THE NEW NAME.when I close my program and click on View button all names including the new name that was entered before are displayed ! is there a way to display everything in the database without closing the program??I need a way to refresh or something.
Form1:
Imports System.Data.OleDb
Public Class Form1
Dim ds As New DataSet()
[code]....