VS 2008 Access Database And Recordsets.
May 27, 2010
I have just moved over from VB6 to VB2008 Express and I cannot get a simple recordset to work.All I want to do is create a very simple recordset form a single table in an access 2007 database file.In VB6 I just dropped a data object on a form, told it the database name and the table name and the job was done.I have been trying bits of code and the wizard for 10 hours I cannot get a simple recodset to work can some one give me some basic pointers please.If I try using the wizards I get some bizarre error message about ConectionString.[code]
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Jan 2, 2010
I'm using a OleDB connection to a access database. I'm entering a row into the database to set some user preferences. What i need to get is get back the row ID of the row I just entered. I'm more familiar with PHP and with PHP I use use this entry
[Code]...
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Apr 3, 2012
i just started programming using DAO recordsets and almost everything works great, most of what I did is database stuff.including movefirst and other stuff like that. But when my boss came and deleted everything in the database and clicked on movefirst i got an error that says no current record. is there any way for me to trap that error
Dim AccessEngine As New DBEngine
Dim db As Database = AccessEngine.OpenDatabase(DatabasePath)
Dim dbs As Microsoft.Office.Interop.Access.Dao.Recordset = db.OpenRecordset("myTable",
[code].....
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Aug 23, 2010
I am using Windows Forms on VB 2008 Exp. combining with Access 2007 as backend.I have designed a form to use ADODB connection with recordsets to retrieve and display data on label controls on the form.On the Form I have buttons like (First, Previous, Next, Last).... I want to use these buttons to navigate the rows of the recordset.However, I have problem in the codes - when I click the PREVIOUS button, it will tell me that either EOF is true. But if I click the NEXT button, it moves to the next record once.... Clicking on NEXT again, does not move to the next record..
See my code below:
Imports ADODB
Imports Microsoft.SqlServer.Server
Imports System.Data.Odbc.OdbcConnection
Imports System.Data.OleDb.OleDbConnection
[code].....
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Aug 6, 2009
How can i refer to an access recordset in vb.net? when i just type the name of the dataset/recordset i am given an error that i need to declare it.Do these not work like forms or classes or modules?
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Jun 2, 2009
i suppose this is an IDE related question; (correct me to another forum if not)
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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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Mar 5, 2009
I am trying to read an Excel workbook with VB 2008. I am fairly successful but I need to make the code more flexible. Currently I use.[code]There are a variable (unknown) number of sheets within a workbook, all with the same format, and their names are given in "SHEET NAMES". What I need to do is now loop through these remaining sheets and transfer the data. I can do this into individual "cells" arrays but I would like them in one 3-dimensional array, something like sheets(sheet-number,columns,rows)I am new to VB and I'm not too sure about variant type, but any suggestions would be most welcome.
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Jun 16, 2010
I am trying to add a new record to a Visual FoxPro data table using an ADO dataset with no luck. The code runs fine with no exceptions but when I check the dbf after the fact there is no new record. The mDataPath variable shown in the code snippet is the path to the .dbc file for the entire database. A note about the For loop at the bottom; I am adding the body of incoming emails to this MEMO field so thought I needed to break the addition of this string into 256 character Chunks.
cnn1.Open("Driver={Microsoft Visual FoxPro Driver};" & _
"SourceType=DBC;" & _
"SourceDB=" & mDataPath & ";Exclusive=No")
[code].....
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Nov 10, 2010
I have recordsets in my MySQL database like this (in german): Karrieren im Porträt: Interview mit Thorsten Franck - „Ich liebe Produkte" Now when I get the data with the MySQL connector reader and write it into an xml file I get just this: Karrieren im Porträt: Interview mit Thorsten Franck Ich liebe Produkte As you (hopefully) can see, the minus (it's one of those long ones) and the upper and lower quote signs are not shown. The table is defined as UTF-8, the output of the xml file also.
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Mar 16, 2012
I have this piece of code which goal is to compare ALL records from recordset rs1 to ALL records of recordset rs2. Im doing something wrong because, when the code finishes I find that some records that fulfill the matching condition are not being considered as matched.
[code]...
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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.
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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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Mar 23, 2011
My experience with Stored Procedures is limited and I'm hoping this will solve my payroll problems. Further, for what I'm attempting to accomplish a Stored Procedure may not be the best answer.I'm attempting a Payroll function in which the goal of the Stored Procedure is to fetch the data for a given Payroll Period, do math on the first returned employee, output a calculated result, then move to the next. Let me explain a bit more...Based on a Pay Period ID which is given to the Stored Procedure, I would like it to do the following:Select the employee in that period, add a total of his hours worked, then add that employees total commissions, whichever amount is greater - return that value (along with the totals - such as the total hours and total commission) - then move to the next employee until completed.
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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.
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Sep 30, 2011
Here my proj details
details:
application:vb.net 2008
database:ms access2007
32bit OS vista
actually what the problem is my project is working fine with windows vista in all the systems my other teams members are using 64 bit windows7 in windows 7 projects runs but couldn;t able to connect with database not able to save the data.
i want to use the project in windows 7
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Jan 2, 2012
I made a Microsoft Access Database on my old computer and it worked fine with vb 2008When i try to go to my form containing the tables from Microsoft access, I get this message
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Aug 3, 2009
Access data from a .sdf database (2008)?
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Feb 15, 2011
I have make database in vb.net 2008 with access database is data grid i need to calculate total but i dont
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Mar 11, 2010
i am trying to read from access database and that work with data in a program. I used to work with VB from previous version and now it seems to me there are differencies. If someone can paste a working simple code.I would like to make a windows form aplication.
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Oct 27, 2010
My problem does not seem to be the same as in other links. I'm trying to teach myself VB 2008 and I want to connect to an Access MDB file. I follow the instructions in all the different books and websites. I start a new project, choose a new data connection, change the type to Microsoft Access and browse for the file. When I get the connection string I press "Test Connection" and it's okay. I then drag either the entire table or just a field to the form. I use Data Preview Data and can see all the rows and columns and the data, so I know the connection has been made. however, when I press F5 I get a form, but no data and it says "0 records of 0".
I accessed the code and put a MsgBox before and after the "Fill" statement. The one before pops up, but the second one (below Fill) does not. I also get "A first chance exception of type 'System.InvalidOperationException' occurred in System.Data.dll" in the Immediate Window. I have tried putting a "Try" statement around the code and in this case it will go to the second MsgBox, but still no data.
I'm following what seems to be the most basic and simple method, but I cannot get data in my form.
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Aug 8, 2009
I would like to know how could i connect my Visual Basic program to a database that can be opened to MS Access. My friend made a program that links to a database that opens in MS Access and when you open the database the inputted data are organized to their respective columns and rows. However he used VB6 in making the program and he wont let me see the syntax. And another thing, the program that he made updates the database everytime a new set of data is inputted.
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Jul 19, 2010
Currently I have this "commands" to access to a database in my computer:
Public conn As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source= " & System.AppDomain.CurrentDomain.BaseDirectory & "bd2.mdb;Persist Security Info=False;")
Dim strSQL As String = SQLcommand
Public cmd As New OleDbCommand(strSQL, conn)
My question is: Is there a way to connect to that database online?
Example: bd2.mdb is on [URL]
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Oct 17, 2010
I am creating a drawing manager, to be run inside 64-bit AutoCAD. From what I have read, there is no 64-bit version of the msjet40.I thought was going to be successful was to build the class as a 32-bit, but I still get the error. is there a way that I can read an access database from withing a 64-bit app?
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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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May 26, 2009
I've just started learning Visual Basic 2008 and I am stuck with accessing a database through VB, I am using the Data Source Configuration Wizard. Everything goes fine until I start debugging, there is no information in any of the fields. However if I use a different computer in the house I can look at different records.
[Code]...
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May 10, 2009
I've got a program I'm working on and I've been entering all the data manually but want to move it to a database.I've constructed the database and have it in the program but cannot get access to the individual cells so that I can use them in computing the results..I have a database named DFTL.mdb with a couple tables, including one query that I'm trying to get data from. The query has 10 records each with 5 unique numbers that attatch to the records.I've tried every way I can think of of pulling this data so I can use it in my program.
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Jun 17, 2009
So I figured out how to display my entire access database into a datagrid but i don't like how it is displayed. I would like to display my information with some actual format to it. *see attached image.would I need to program my info to display in a text box? thats kind of what it looks like it is but Im not sure.
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Feb 2, 2010
Most of my project started out using Access databases, but now I want to swap them out for the SQL versions. One example would be this:
DEMOGRAPHICSTableAdapter.FillByCount(EyeBaseDataSet.DEMOGRAPHICS)
SPat = EyeBaseDataSetSQL.DEMOGRAPHICS.Patient_NumberColumn.Ordinal
'TODO: This line of code loads data into the 'EyeBaseDataSet.History' table. You can move,
[code]....
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Jun 24, 2010
im having an issue writing to an access database via vb.net 2008 i can read form it but not write?
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