Connecting To This Database And Getting Updated?

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


ADVERTISEMENT

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

Autorefresh Rss When Database Updated?

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

Cannot See Updated Rows In The Database?

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

Database Not Updated When Delete / Add Row In DataGridView

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

Label Not Get Updated When New Value Assigned From Database

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

VS 2008 Updated Database, Now Need To Re-read?

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

Data Source Updated As Well When The Variable Is Updated?

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

Calculated Value On TextChanged Event Can't Be Updated To Database

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

Deployed MSAccess Database Not Updated Through Application?

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

How To Search For A Folder - Database That Gets Updated About Once A Month

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

Get The Updated Database Data And Print Into Crystal Report?

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

VB2008 With MS Access Database Updated Related Data

Oct 26, 2011

VB2008 with MS Access Database updated related data ?

View 9 Replies

Datagridview Cant Show Updated Data While Database Access Already Update

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

Programmatic Update Of Datagridview Cells Not Being Updated Back To Database?

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

Asp.net Connecting To A Sql Database

Feb 14, 2011

I'm trying to write a method in VB.net so that when I click a button it queries the database and returns all the values which match a textbox which is located next to the button. I have no idea how to do this, I assume in the onclick method for the button I will need to pull in the value from the textbox, connect to the database and display the results to a gridview?

View 2 Replies

C# - Connecting To DataBase ASP.NET

Jun 22, 2010

I have a database in the same workspace, I've tried to connect to this DB using this codes :

[Code]...

View 1 Replies

Connecting To A .mdf Database?

Jun 5, 2011

I got vb.net 2008 express and sql server 2005 and 2008 express editions whic I downloaded from microsoft website.Now I just want to connect vb.net with sql server 20o5 or 2008.I am using a connection string as

PubConnstring = "Data Source=RAMANSQLEXPRESS;Database=FirmTest11;Trusted_Connection=Yes"
'Create your connection object
Dim objconnection As ADODB.Connection
Dim strSQL As String

[code]....

Getting Error : [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified.

View 4 Replies

Connecting To A Database?

Apr 14, 2011

I'm having problems connecting to a database. I have sql server 2005 express installed on my PC, and i am using the following to code to connect to it.

Dim nwindConn As SqlConnection = New SqlConnection("Data Source=localhostSQLExpress;Initial Catalog=northwnd;" & _
"Integrated Security=SSPI")

[code].....

View 2 Replies

Connecting To A SQL Database?

Jun 2, 2010

Ok I'm finally getting to put on big boy pants and have now moved beyond doing everything in Access (yay me).o here is the problem, can't connect to the Server. created a test button on my form, which is what I usually do with Access so Ican be sure everything is where it needs to be pointing.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim connetionString As String

[code]....

View 10 Replies

Connecting To A Web Database?

Sep 21, 2010

is it possible to connect to a database residing on a website (eg., MS Access)to get/update data.can we do it by a VB.net windows application.

View 9 Replies

Connecting To Database In .NET?

Mar 25, 2011

Dim con As New System.Data.SqlClient.SqlConnection
con.ConnectionString = "Server=iraq\sqlexpress ; Database=stats ; Trusted_Connection=True ;"
Dim com As New System.Data.SqlClient.SqlCommand
com.CommandText = "insert into users values('" & TextBox1.Text & "','" & TextBox2.Text & "','" & TextBox3.Text & "')"

[Code]...

There are new events happen when i adjust the connection string

con.ConnectionString = "Data Source=.SQLEXPRESS;AttachDbFilename=C:Documents and SettingsAdministratorMy DocumentsVisual Studio 2005WebSitesWebSite2App_Datastats.mdf;Integrated Security=True;User Instance=True"

show me error with com.ExecuteNonQuery()

View 1 Replies

Connecting To SQL Database

Feb 8, 2012

I am a wannabe programmer but quite new, started with VB.net about 1 month ago.I write on this forum because It's the first time that I'm actually stuck. The problem is I cannot find a way to connect to SQL server database I have created and saved earlier on my HD using visual express 2010. I want to find a way to connect using code, not by click and drop. I just hope you won't find my issue too trivial to even answer it.The project is very simple, it just consists of a button that should connect to the db on click.[code]

View 9 Replies

Asp.net - Connecting To Oracle Database

Apr 7, 2011

Today is my first day trying to use Oracle databases in Asp.NET so I have no idea of what I need to do. I have added this code

[Code]....

View 2 Replies

Connecting A .mdb Database With Password?

Mar 8, 2012

I use VB.NET 2010 Express and Windows 7. Access is not installed.The code used to connect database password protected, is:

Public Class Form1
Dim cn As OleDb.OleDbConnection
Dim cmd As OleDb.OleDbCommand


The code is not working. I get this error: "Could not find installable ISAM".

NB: The error occurs only if the database is password protected!For unprotected database, code works without error.

View 5 Replies

Connecting A Mdb Database With Password ?

Mar 15, 2012

My code is:

CODE:

It works for a database without password. But for a database with password and the string: "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:DBB.mdb;Jet OLDB:Database Password=xxx"

I get an error:"Object reference not set to an instance of an object." Where wrong?

View 2 Replies

Connecting ComboBox To Database?

Apr 1, 2010

i'm fairly new to VB and am doing my second system through it. I am at the point where i want to link a combobox on my form to my access database so that when i click the dropdown arrow a list of surnames from the particular table in my access database appears.

[Code]...

First things first is this code remotely close to doing what i want it to do? I have to use an access database and i am familiar with this particular method of connecting to the database (sending any data to it is easy now). Secondly when the form opens (since the sub is called at load) i get the annoying old "object reference not set to an instance of an object" message.

View 10 Replies

Connecting Database From Ppc To Desktop?

Feb 17, 2010

I have a database(.sdf file) in ppc folder - Storage CardProgram FilesEmpEmployee.sdf. I want to connect this file with sql express 2005. I use this code

Dim Con as new sqlconnection
Con = New SqlConnection("Data Source= 192.168.55.101Storage CardProgram FilesEmpEmployee.sdf;Password = 12345;Integrated Security=SSPI")

[code].....

View 3 Replies

Connecting In Access Database In VB

May 30, 2010

I have a problem in connecting in access database in vb .net.

View 1 Replies

Connecting MS Access Database In LAN?

Jan 11, 2010

i want to share my ms access database in other computer using LAN so that they have they same database. it is possible?? or any idea that is easier than this?.. my program is just like this. i created a program called ordering system.. the 1st computer will save the orders of the customer and the 2nd computer will retrieve the orders of the customer..

View 3 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved