Writing Data In Access F
Feb 22, 2009[code]i want to write Delta_r(i) in access data and then i want to connect that file to Crystal report for plotting.
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Writing Data To Access 2007?
Mar 25, 2009I am having trouble writing information to a 2007 access database. I just want to write a numeric value into a data base. My table name is KW and my field is also referred to as Kw.
Dim theOleDbConnection As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;" & _
"Data Source=C:\Documents and Settings\HP_Administrator\My Documents\value.accdb")
Dim theOleDbCommand As New OleDbCommand("INSERT INTO[KW] (Kw)VALUES (@P1)")
theOleDbCommand.Connection = theOleDbConnection
[code]....
Writing Data To Access Database File?
Jul 19, 2010I use Visual Basic in Access, and I have no problem writing data directly to a cell in a database table. But I can not figure out how to write the code for Visual Basic 2008. For example I would
use Me![cust_Cost] = 20 to input 20 in the database table.
I have purchased two different Books on Visual Basic 2008 and not one of them show how to input data manually.
Error In Writing To Access
Jun 15, 2009I am trying to Read a text file from vb.net and then write it to microsoft access. The following is the codes that i have written for this project.
However, there are errors stated:
1. error in inserting record
2. Warning 1 Variable 'DoCmd' is used before it has been assigned a value. A null reference exception could result at runtime. C:Documents and Settings�74958XDesktop6jun[updated]6junForm1.vb 63 9 6jun[code]....
Error While Writing Into Access File?
Sep 10, 2011What i've written opens an Access database and one can read and write into it (on a table called Journal)It does indeed work for newly made Access files. However it doesnt work with a specific Microsoft Access database (again .mdb) which was made with a very old Access, like Access 2000 or something.The error message is: Syntax error in INSERT INTO statement.Inside the zipped file below you will find the source code of the program, along with an access file that the program CAN read, and the one access file that i NEED the program to reed but it cannot!
To see what i mean run the program one, try to add a new line to the database. you get an error!now rename the Journal.mdb to "journal.bak.mdb. And the journal_working.mdb to Journal.mdb try to add a new line to the database again without altering the source code at all. it succeeds now!!
NOTE: the program can READ data from both files. but it CANT write data to the old access file
this is the code:
Dim cb As New OleDb.OleDbCommandBuilder(da)
Dim dsNewRow As DataRow
dsNewRow = ds.Tables("AddressBook").NewRow()
dsNewRow.Item(1) = txtFirstName.Text 'or .Item(1) =
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Writing To An Access Database Via .net 2008?
Jun 24, 2010im having an issue writing to an access database via vb.net 2008 i can read form it but not write?
View 4 RepliesWriting VB/Access Apps Fast?
Nov 23, 2010At my company we build a lot of small, administrative type databases generally used by a dozen or less users. We have thus far done them entirely in Access. I've been doing VB forever and would like to write nicer, rich UI apps using a VB front-end to and Access database instead, as I find Access apps clumsy to use; VB apps look better and have more UI options.
I've started to play around with building Data Sources, Binding Sources, etc. and dropping them on forms, trying to create something useful with as little code as possible. I'm just wondering what folks generally think of using this approach. Remember this is for small, not complicated db apps with few users.
I know in the VB6 world bound controls took some heat for being not worth the effort it saved you.Also, is there a good book on the subject that concentrates on creating VB/Access apps with minimal code?
VS 2008 - Writing To Blank Access Database
May 16, 2009I have searched all over the forums and not found an answer to my question. My question is how do i write to an access database at runtime. The database is also created at runtime. I have a dataset loaded with a table that i needs to be written to the database. how would i write each row of my dataset to my database? Sorry if this sounds a little jumbled together it is late and i am tired. If it is unclear you can ask me and i will answer any questions you have about my question.
View 14 RepliesWriting A Access Query In Visual Studio?
Dec 15, 2011I have limited experience with Visual Studio and have a question about Querying an Access database. I have created a Visual Studio application that displays and modifies an access database. I have use datagridview and detailed view to insert data and view data in the Access database. I am now trying to figure out the best way to query the data in the database. I have tried right clicking a table in the database explorer and creating a new query. Everything works and I can view the data but I am unsure how to display this query result in datagridview. So my question is how do I view this result in datagrid view?
View 9 RepliesError Writing To An Access 2010 Database Using VB2010
Aug 18, 2010I am writing an app in VB2010. My code parses a text file, assigns data to variables My??, and then attempts to store this data in an access 2010 (actually access 2007 format) table. Yet, whenever my code gets to MyRow.Item("Artist") = MyArtist I get an error 5 'Artist' does not belong to Table MyTable, but the field/column does exist in the table as do all the others.
01Dim tbl As DataTable = New DataTable(MyTable)
02tbl.Rows.Add()
03Dim lastRow As Integer = tbl.Rows.Count - 1
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Exception - Vista + .NET - Access Denied While Writing To HKEY_LOCAL_MACHINE?
Mar 30, 2009I want my program to be able to edit a values within a registry key that resides in 'HKEY_LOCAL_MACHINE'
My.Computer.Registry.SetValue("HKEY_LOCAL_MACHINESOFTWAREXYZ", "MyValue", "MyData")
The above works fine in Windows XP, but throws an UnauthorizedAccessException in Vista.
VS 2008 - Writing To Vista Registry (Unauthorized Access)
Sep 19, 2009I'm running Windows Vista with admin privilege and UAC is disabled but still unable to write to windows registry!
My.Computer.Registry.SetValue _
("HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun", _
"Test", "C:Test.exe", Microsoft.Win32.RegistryValueKind.String)
I'm getting error "Unauthorized Access Exception was unhandled."
"Access to the registry key 'HKEY_LOCAL_MACHINE....' is denied."
I've googled the net and found that registry permission elevation is required for admin tasks, Is there away to take registry key ownership through VB.Net code??
Writing The Code To Connect To The Access Database And Insert The New Row?
Sep 24, 2009I am creating a form which has the customer information entered by the user.When the user clicks submit the row need to be inserted into table "customer".writing the code to connect to the access database and insert the new row?
View 3 RepliesChange The Delimiter When Writing Access Table To A Text File?
Nov 2, 2010How can I change the delimiter when writing my Access table to a text file? I was hoping it would be as easy as adding a similar option like we do for HDR=No; maybe Delimiter=|
Dim AccessConn As New System.Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|mydatabase.mdb")
AccessConn.Open()Dim AccessCommand As New System.Data.OleDb.OleDbCommand("SELECT * INTO[Text;HDR=No;DATABASE=" & userPath & "].[" & fileName & "] FROM tblMyTable", AccessConn)
AccessCommand.ExecuteNonQuery()
AccessConn.Close()
Windows7: Writing A Text File Giving Access Denied?
Nov 28, 2010I've been doing some more experiments and have summarized the query as below: I've created the simplest application. A project with a plain form, which writes text file within its application directory. Simple as that.Supposing this was my application which I want to distribute on the world web. I've created a basic installer for this using NSIS installer. The Installer installs my application in a folder created inside Program Files. The OS is Windows7 and UAC is enabled.Now I know many people have been facing difficulties in accessing files inside the Program Files folder. My app is simply creating a plain text file, nothing more, and within its own application directory. It is giving Access Denied error. But if I right-click on the EXE and run it as Administrator, then it works ok.The only solution thats available is not to write in the application folder, and write text file in some other folder which is not protected. My question is that other programs that are installed on my system are also doing it. I have a temperature monitoring software called SpeedFan on my system, it creates log files within its app directory. All other softwares create log files within their app directories, why cant I?I just have to make a small log file for my application and Win7+UAC is not letting me do it. I don't want to write the small file in any other folder. How are the other softwares accomplishing this ?
View 5 RepliesVS 2008 Unauthorized Access Exception When Writing To App Program Files Directory?
Jul 12, 2009My application creates a file by writing to System.AppDomain.CurrentDomain.BaseDirectory() & "data/" & filename...Now this works fine usually, but I just added a setup utility to the app, so now it installs to the program files directory. It installs correctly and creates the data folder, however when it tries to write the file it gets an exception "unauthorized access".
View 3 RepliesWriting Data To A New XML File?
Jun 13, 2011I am working on a program for work and I am stuck on trying to make a new XML file from VB.NET 2010. I have the old code which was done in C# and it works but even using a C# to VB converter didn't help. I will paste in both the C# and what I have in VB
private void webBrowser1_Navigating(object sender,
WebBrowserNavigatingEventArgs e)
{
[Code]....
It is supposed to not only create the file but launch a program called PowerScribe and find the case in the Field 6 section.
IDE :: Writing Data To The Original Database?
Sep 14, 2007I want to be able to click on the save icon and have the data on the form save to the original database. Right now I seem to have a disconnected dataset I have tried to change everything from read only to a false statement but it just will not work. It saves to the form fine just not the orignial data base.
View 3 RepliesPass The Data To Procedure Instead Of Writing Out Each One?
Jan 7, 2011I have 10 panels on a form and I was wondering if there is a more efficient way to loop through them to pass the data to my procedure instead of writing out each one the way I am doing
' sample shows only 3 but there are 10
For i As Integer = 1 To 3
Select Case i
Case 1
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Writing & Reading A Data File
Jan 30, 2011I am trying to write the TOURN structure and then read the TOURN structure back in.. the file gets created on my desktop and the program does not have any syntax errors, but when I READ the file none of the Data gets retrieved. So I am not sure if the DATA was actually saved or it is just not being retrieved?? This is what I have coded so far...
[Code]...
Writing A C++ Code For Reading Data From UC Using USB
Apr 9, 2009I am doing the project to make a microcontroller communicate with PC. I am facing the problem writing the C++ code for command button to ask uC to display the data in my label. How to write the code for C++ to get the data from the microcontroller?
i'm using a C8051F320-dk which already have a USB connector and a RTC.
my data will be the date, and time provided from the RTC.
Writing A Timer To Transmit Data?
May 24, 2010I currently have a program that, when I select an option from a drop down menu, will transmit a character to a microcontroller. I then have to click another option after 10 seconds to send another character. What I would like to do is modify this program to transmit one character for a period of 10 seconds, then transmit another value for another 10 seconds and so on for a defined period of time, say 30 seconds in total.
View 1 RepliesWriting Data From Dataset To Database?
May 10, 2011I am trying to write data back to my database in my project, but it keeps disappering when I make any changes to code. I can build the project, add data, close the project and build it again and the data is still there. But as soon as I make any changes to anything, on the next build, all of the data is gone.
The table will not be bound to any controls in the final project, but for testing purposes I have a datagrid control that it is bound to. My code started as follows:
[Code]...
Writing Data To An ASCII Format?
Feb 16, 2010I have data that has to be collected from my database and sent to a supplier's edi system. The file has to be in ascii format so their system can read it. I am writing what I see as an ascii format file but they say it's in edibc format when they receive it. I am posting my code and hopefully somebody here can help me out. Funny thing is that I have done this before successfully and am using virtually the same code but to no avail!!
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim filed As String = "Y"
' get records to be transmitted and plop them into an array list
Dim con As VICSClaimDAO = New VICSClaimDAOSQL()
[code]....
Writing Data To Excel Continously?
Aug 19, 2011I want to import my data, which I receive over USB (every second), to an Excel sheet. Thing is, I want to open only one Excel file and write everything to this one file, and by pressing a "STOP" button, data reception will be canceled and data in the Excel file should be saved and Excel file should close right after that. Here my code,
Dim excel_cnt as Integer<br/>Dim sv_var as Integer = 0<br/><br/>Sub write_to_excel()
Dim xl As New Excel.Application
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Writing Data To Serial Port?
Nov 27, 2010I'm having problem while writing data to serial port. This piece of code is meant to write all the integer numbers in a text file to the SerialPort (connected to a USB-Serial Converter) when StartButton is clicked. However, it only managed to send two numbers and stopped at "USBSerialPort.Write(t, 0, 2)".
Private Sub StartButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles StartButton.Click
USBSerialPort.DiscardOutBuffer()
[Coe].....
Reading And Writing Data To A Text File?
Sep 28, 2009The program that I am writing has three default variables that I would like it to store and also be able to change. I have them in a text file called "settings.txt" The format of the text file is as follows:
Default Source "I:DCIM101MSDCF"
Default Destination "C:Documents and SettingsChristyMy DocumentsMy Pictures"
Default Backup Destination "D:My DocumentsBackupMy Pictures"
The field descriptions eg "Default Source" take up 30 characters, so the variable data starts with character 30. I know their has to be an easy way just to pull out the data from a particular line starting with character 30 but I can't find it.
Saving A Excel Document After Writing Data To It?
Feb 2, 2012I was developing a software with related to Excel, in which I have to write and SAVE the details at appropriate columns. I am currently having a problem in saving the data.
Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Open
[Code].....
Very first time I debug the coding I haven't got much problem. But debugging it again gives me an Error AS: "A file named 'Resume.XLW' already exits in this location. Do you want to replace it?"
I was able to see this since I have enabled the display alerts. Disabling it generates a save as window.
VS 2008 : Writing Data To A MySQL Database?
Jun 15, 2009I have added a MySQL Database as a data source in VB using the MySQL .NET connector and added the dataset . How do i write to the database from there?
View 7 RepliesVS 2010 : Connecting To A Database And Writing Data?
Oct 9, 2010How do I connect to a mysql database, and write a new column to a certain table there?
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