Read Data From Acces Datbase?
Oct 9, 2009I just want to read some data from a database (a table) but I am not sure how.
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Save A Data Entered In Vb Form Into .txt Or Acces Db?
Aug 16, 2011How to save a data i entered in vb form into .txt or acces db, for example i have a form, and there is some text box in that form, then i write a text in that TextBox then i save all into txt file or Access DB, and i can open or load that file into my aplication. i use SaveFileDialog but how to make i can chose a file type to save it?
View 8 RepliesWrite Data From A DataGridView To A MS Acces Table?
Oct 10, 2009I want to write data from a DataGridView to an MS Acces Table, BUT I want e.g. cell in DataGridView to be cell 1 in the Acces table.
View 4 RepliesVisual Basic 2008 Retrieve Specific Data From Ms Acces To Eliminate Duplicate Records?
Sep 11, 2009I'm doing a simple database thru VS2008 and Msaccess without using any builtin relationship between records, now i need to know how i can retrieve specific data from access using the oledbadapter or any, example seek if the value from the textbox1.text is already existing in msaccess table then msgbox "Record already exists.", note that the code is in keypress event of the textbox1.
View 2 RepliesLooking Through A Datbase And Adding Item To Listbox?
Dec 23, 2009This is what I have so farPublic Class Form1Private Sub IndividualParticularsBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e s System.EventArgs) Handles IndividualParticularsBindingNa
View 3 RepliesVS 2008 Search Button On Sql Datbase 2005
Aug 29, 2010where to start on making a button on my form to search for records in a database.I know how to do a filter on the navi bar to say search for lastname records,but i want to add the button to the form to do the search.
View 4 RepliesComm Port Read Hangs When Attempting To Read Data?
Apr 18, 2010I;m attempting to write code to read several NMEA ports and format the data for archive. When I execute the following code:
Using Commportno As IO.Ports.SerialPort = _
My.Computer.Ports.OpenSerialPort(portName:=port)
Dim Incoming As String = Commportno.ReadLine()
Inner Join In Acces
Mar 16, 2009how we use inner join in oledb( acces ) ? this is false :
cmd = New OleDbCommand("select lesson_name as ,lesson_type from choice inner join present on choice.p_code=present.p_code inner join lesson on lesson.lesson_code=present.lesson_code
and this:
[Code].....
Writing To MS Acces Mdb?
Feb 20, 2010I can't seem to write to my database. No errors came up These is my code and declarations
Imports System.Data
Imports System.Data.OleDb
Imports System.Net
Imports Microsoft.VisualBasic
Public Class frmChange
[Code]...
My mdb file has all the tables set. The database isn't being copied to the bin folder
HSD 32 Bit Data Bus To Serial Converter Via A Microcontroller - Data Sniffer To Read The Data Bus (32Bit)
Sep 3, 2008Im working on a HSD 32 bit data bus to serial converter via a microcontroller. Now first I want to make a sort of data sniffer to read the data bus (32Bit) .All on the controller side is working and the stream of bytes are coming in via RS232 as 4 bytes in HEX like FD,A5,45,8B . I already converted the bytes in Dec and ASCII to determine what is passed true the bus and how fast and stuff.. Now that is all correct and working very well if the LSB (least significant bit) of the 32 data bus is Data line 0 and the MSB (most significant bit) is Data line 31 but if that is not the case I need to invert the 32Bits (like as I would invert the connector on the bus) . How do I best do this using the 4 bytes I send from the micro controller.
Example:
(MSB) 01001000 01100101 01101100 01110000 (LSB)
HEX= 48 65 6C 70
DEC= 72,101,108,112
ASCII= H E L P
I need to invert it with a button to:
(MSB) 00001110 00110110 10100110 00010010 (LSB)
HEX= 0E 36 A6 12
DEC= 14,54,166,18
ASCII= (SO) 6 : (DC2)
Acces BBDD Through A Service?
Sep 20, 2011I have a windows service that connects to a database to read a few names of processes to control them.The problem I have is that if I run the service on the machine where I have the database works perfectly.However if I run it from other machine on the same network can not connect to the database.With the aggravating circumstance that an independent application with the same connection string is that machine if it connects to the same database. Shortly that an indepenciente application connects with this connection string but a service not[code]....
View 3 RepliesAcces Other Computer With Program?
Jun 3, 2012How could you accese and other computer via localhost or internet wiht vb.net. Not controlling but something like a chat box.
View 14 RepliesAcces To Folder Denied
Sep 14, 2010I've made an app that first extracts an iso file to a folder. Say the folder is "ExtractedIsoDir", this folder is created in the same directory as the app.
Inside the iso are only folders, so you get a structure like "ExtractedIsoDirFolder1", "ExtractedIsoDirFolder2" etc.[code]...
Can't Insert Value In Acces Database?
Dec 16, 2011This my code in VB.NET. My try catch says there is a syntax error in the instruction INSERT INTO. I don't know what happened to my INSERT. I searched for the error for over an hour... I'm not an expert in VB.NET, I'm better in C#, but I need to do this anyway in VB..
[Code]...
Cannot Acces ListView SubItems
Jul 16, 2010I'm trying to get the first subitem's text from an item in my ListView. Here is the code I'm using[code]...
View 2 RepliesRead Data (read Only) From Excel Files?
May 27, 2011I want to read data (read only) from excel files
I use this connection string
Con_BarCode = New ADODB.Connection
With Con_BarCode
.ConnectionString = "Driver={Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm,
[Code].....
Acces Unix UNC Path From Within Application?
Aug 17, 2009For the application im writing i need to access files on a network server. I have tried different ways, but none of them seem to work.When i try using impersonation i keep getting logon failure (1326). I did try few solutions i found on the net but none seem to work.
View 1 RepliesCannot Acces A Disposed Object - Error?
Feb 26, 2012My program involves accessing a print preview dialog.
It works just fine the first time. However, when I close the printpreviewdialog and then try to open it again (through the button) in the same run
then I get a "cannot access a disposed object" runtime error. Hence, it can only work once during a program run.
Each Web Online User Connect With There Own Acces .mdb?
Apr 1, 2012in my project, when a new user register online on my website, then my project create a directory on server with the user name "abc" and copy a myDB.mdb file in it.this .mdb file contains predefined 2 tables.now my question is :1 is it possible to connect and use with Dataset.xsd in this task.2 how each user read and write data with there own myDB.mdb file
View 1 RepliesPopulate Datagrid From Acces With Conditions?
Dec 17, 2009I have a database in MS acccess, in 2 of my fields put some dates (but not on all rows).In DateField I put date as "dd.MM.yyyy" and in TimeField I put hours as "hh.mm"Now, in my vb datagrid I want to be shown only rows that has a date and n hour on the columns with dates and hours , and the dates must be latest 24h
Private Sub ultimile24_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'NavsitDataSet.nave' table. You can move, or
[code].....
A Login Form ForVB 2010 Using Acces
Jun 6, 2012Ive made a code that will read a database but i need a button that will "Create an account" and save the details into the access database so it can log in.
Here is my code so far
Imports System.Data.OleDb
Public Class Form1
Private Property Form1 As Object
[CODE]..................
How To Open An Acces Database In .net Under Windows 7 64bits
Apr 1, 2010i know oledb is not supported in 64b. I have read the application must to be compiled in x86. But it doesnt work.
As i said:
-windows 7 64b
-vb.net in visual studio 2008
-office 2003
Shutdown Network Computer Acces Denied
Jul 27, 2010I'm developing an application that controls the rest of the machines inside a local network and when i try to send a command to Shutdown remotely a pc in this LAN, i get the error Acces Denied, i've changed the Security Policies of that machine por testing purpose at:[code]Changed to this option "Classic - local users authenticate as themselves" as i read in other posts.But still getting the same error, i dont know what's wrong... all OS on my LAN are Windows XP Pro Sp2, and all of them boot Administrative user without entering any password.
View 9 RepliesVS 2008 Acces Connection Error In Windows 7?
Aug 26, 2010I created an vb.net Application with microsoft visual studio 2008 and Access 2003 as Database. The application work fine in XP O/s but when i run the application in Windows 7 it gives error when connecting to Database. It works fine when i create an new Access 2003 database in Window 7.It gives error System.Data.OleDb.OleDbException: Operation must use an updateable query.
View 1 RepliesImport And Export From Acces To Excel Or .csv Visual Basic
Feb 21, 2011Im trying to add an export import method in visual basic. Export from Access database to Excel Worksheet or .csv. And Import From Excel worksheet or .csv to Access database
View 3 RepliesMake A Progress Bar That Shows When Acces Some Items On A Listbox?
Dec 1, 2009How can I make a progress bar that shows when I acces some items on a listbox. It fills only when I click on listbox items, and then gets empty imediately.
View 2 RepliesVS 2008 Update Acces DB Will Trying A Diffrent Approach Work?
Jan 29, 2010I am working on a signout system I have a good start but am trying to solve a small problem.Signing out equipment I fill part of a form with student data from the dataset with Fillby, fill the other half with equipment data using Fillby1 I then save this combined data to my Access 2007 Database using a OleDb.OleDbConnection.
[Code]...
Read XML File - Read The Data From ?
Feb 13, 2010I have a fairly simple XML file that I just want to read the data from.
It has 3 levels, root, main section and items. There are no attributes. I want to go to the first main section by name, then read in all the items. The items all are named the same. I've seen this done before, so it should be ok. No writing will be done. Basically this is a static data file
File looks similar to the following:
CODE:
DB/Reporting :: Alter A Column In An Acces Database To A Random AutoNumber?
Mar 3, 2008I'm wanting to alter a column in an acces database, to a Random AutoNumber I know how to do it for incremental e.g."ALTER TABLE MyField Counter(1,1)"but how do you do it for a Random Autonumber??
View 10 RepliesCNC Control Program, Based On A DLL - Acces All Functions By Means Of Softkeys ( F-Keys At Top Of Our Keyboards )
Apr 8, 2009I'm working on a CNC control program, based on a DLL that someone else wrote. No problems with that sofar, as i get good support from the writer.
The problem i do have to tackle is the following: I want to acces all the functions by means of softkeys ( the F-Keys at the top of our keyboards ) when the program starts it shows the Main menu softkeys ( F1-F12), and each F-key has a function assigned to it, some will make the machine move, others will show another menu, or a fileopen/save dialog, depending on the chosen keys.
All works fine and handy-dandy, except for the F10 key, it seems to be "Sticky", when i press it, the program will not react to any other key, only the F10 key can get it back in "normal state" accepting every key with a function assigned..
How to "unstick" the F10 after pressing it?.. because pressing F10 now, means no other key will do anything, and that may become dangerous, when the machine is moving and it must be stopped..