Created A System Whereby The Database Is Connected To Using The Preset Tools Available?
Jul 2, 2009
I have a connection to an access database, I have used the data sources tool provided because in this particular instance I don't want to do much with it other than display the records (which I can do) and edit them (which I'm haveing some trouble with).I have created a system whereby the database is connected to using the preset tools available like; BindingSource, TableAdapter, BindingNavigator etc.
I also have a button for edit. This doesn't work and I was wondering if anyone could help me with this? I can't really provide any code for this, because I didn't code the connection by hand and the code I have been attempting to use for editting the records in the database doesn't even sort of work.
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Nov 7, 2011
I am designing a Point Of Sale system to be used by sales representatives. The sales rep should be able to place an order of a specific product on behalf of the customer. I have defined my relationships between the tables, Product, Order and Customer. When i try to save my orders i get an error that says "you cannot add or change a record becuase a rerlated record is required in table Product"
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Feb 4, 2012
I have a thesis project. it is composed of a webpage created on php and a system using vb.net 2008. As of now , they are both connected to the same database. I am wondering if it is possible that if i packaged the system and live the website, will still be connected with one database?
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Jun 9, 2009
is there a section on how to add controls, Ie like in fire fox Tools/Options
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Nov 15, 2010
I am working on a client system . How i will get IPAddress of all the system connected through lan.
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Jun 18, 2010
What I'm looking to do is 'hook' a physical drive connected to the system so I can process data coming through the API before it's written to the disk. I have a sense DeviceIOControl is where I should be, but I can't seem to find any IOCTL code that uses a callback (which is what I expect I should be using to scan/process data on its way through the API).
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Feb 19, 2009
I am used to using the binding database tools in vb.net for sql server, are there these same tools for using a mysql database?
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Dec 18, 2011
I have a past experience with visual Foxpro and SQL. Now, I need to build a database with multiple data files (say 100 files), each data file with millions of records, each record with dozens of fields.Then, each data file is linked with other files by using different fields. Primary data is in English. Then there would be a translation of the English data is in another language. Primary data in English is stored in separate files whereas the translated data is stored in separate data files.
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Sep 3, 2011
Can you give me some tools for LAN. I have a Program and im using SQL database and i wll access to other Computer. Im Using Visual Basic 2010.
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Sep 24, 2011
I was reading from a book, and there's a way of creating database and accessing its tables using tools available in IDE. i-e DataSet, BindingSource, TableAdapter, BindingNavigator. Is this the correct way of using database or through the code??
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Nov 18, 2010
For whatever odd reason, we have a legacy data recorder device that runs at 9600 baud. Except when it needs to transfer its recorded data to a PC, in which case it switches to 57600 baud.
The old VB6 code worked, although it had its own set of problems of course.
The routine is this: Do several COMMAND/RESPONSE routines to populate a list of available records, listed by timestamp, at 9600 baud. Once a timestamp or several are selected, display a file save dialog. At the moment that dialog is closed, send a command to the device to tell it "hey we're going to warp", sleep for 100ms, then set the baud rate property of the persistent COM1 connection to 57600, before beginning to process XMODEM data and do the progress bar dance.
The problem I'm having is that it doesn't appear that the data received is ever really kosher as far as the byte marshaling is concerned. Which makes me wonder just how well SerialPort is at dynamically changing bauds on the fly. The VB6 version used MSComm.
I've even attempted to just use MSComm through the compatibility layer but "CTL_E is not supported" which makes it sound like it's incapable of doing XMODEM. (?)
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Oct 9, 2009
I'm trying to make a form that allows users to register new tools with the database. I know how to update the sql server with that information, but there's quite a bit of code that accompanies specific tools (which alter labels on textboxes, etc.) Is it possible to programmatically update the software according to information put into a 'add new tool' form without touching the source code?
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Aug 14, 2010
I'm am wanting to get out of access dbs and into something more solid, ive heard that sqlite or mysql are great database tools for your applications. I am also looking for a database with a GUi to manage the database more easily and links on how to incorporate the database into my projects, etc. So any links,videos, suggestions i'd like to hear them all.
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May 30, 2006
I'm viewing reports on a VB.net form using CrystalReportViewer. Once a report is opened, the Access database that is used within the report is locked (i.e., the Access MDB file can't be deleted). Even after the report is closed, the database stays locked until the VB.net app "ends". This is a problem because I want to be able to delete the MDB file at some point while running the app and can't. The VB.net app starts by opening a form named "Startup". No database connection occurs here. A button is pressed using this [code]I must not be properly closing the CrystalReportViewer or the Report form.How do I close the Crystal report and unlock/release the Access database?
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May 2, 2010
I have connected a database query that I made using MS Access 2007 to my form in VB 2008. I know how to pull the fields onto the form and get the information to display on the form by clicking the binding navigator at the top of the form. My question is that is there a way that I could input the ID number in a textbox and click a button to display the rest of the field in some more textboxes
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Apr 4, 2011
On my program I am trying to make a ToolStripStatusLabel's text change to "connected" if connected to a network and if not connected to a network change the text to " Not Connected" then I don't know how to display a image if connected to a network or not connected. So if the computer is connected to a network I have a image that I would like to be displayed next to the ToolStripStatusLabel. And if not connected to a network, can the program display a different image? I tried this:
My.Computer.Network.IsAvailable=True(ToolStripStatusLabel2.Text "Connected")
My.Computer.Network.IsAvailable=False(ToolStripStatusLabel2.Text "Not Connected")
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Nov 10, 2009
I am trying to find out if the connection of my sockets (TCPClient) is connected or not connected. I am using the following code:
[Code]...
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Jan 11, 2010
I am trying to add a data source from a connected database but it doesnt seem to be working well.Initailly the table name was mispelled and there where fields missing. The table was modified to include the new fields and it was also renamed.The changes are reflected in the dbml file within the project, and the solution has been built with a sucessfull result.The problem is, when I try to add a new data object into my solution, the changes that were made to the database arnt reflected in this new data object.
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Apr 15, 2010
i am using Visual Studio 2008 and VB.NET 2008 and SQL Server 2005 as the database. I just finished designing & writing codes for a customer information and , however after it has been connected to the database only one of the datetimepicker can be click, and the rest of the function including in the form are not working!it seem that the form stuck and NOT responding. i cant even close the form (X button), so i have to stop the process using compiler (visual studio 2008), however if i press the 'Delete' button before the 'Add' button, it will successfully delete the data.. but if i disconnected the form from the database, (disabled the form_load codes [put 'quote']) the both of datetimepicker will work and able to view the date interval (after pressing the 'Calculate Period' button) in addition how to make it appear automatically in screen without using the button? below are the code, I try to make some other form.. but it is still the same
Code:
Imports System.Data.SqlClient
Imports System
Imports System.Data[code].....
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Jul 21, 2009
i am wondering if it is possible to get the source code for the following:
1. use vb.net code to set on/off primary key when connected to Access database
2. update a particular data.
for e.g: hostname: AES-19 *use source code to check data in Microsoft Access database
if hostname is new, insert into Access. if hostname already exist, update into Access
*so that i will not have duplicate data in Access.
[Code]...
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Jun 21, 2010
I have connected a form to my database, which displays info when the form loads, butttt it displays them from load, which is not what I need, can someone tell me how to clear the form upon load so that none of the textbox fierlds have data within them? Untill I request them to.
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May 3, 2010
cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:ESHAN PROJECTUSMANasp.net_projectsHEALTHFOUNDATION PROJECTdatabasehvaccine.mdb")
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Mar 26, 2011
I have a system that can add, edit, delete and search data that is in ms access. That ms access is connected to my vb 2008. I'm upgrading my system so that it can print the access file.
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Aug 16, 2009
how do i delete selected row from a datagrid connected to sql server database...?? Delete selected row and update database.
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Feb 17, 2011
I am trying to develop an application using VS 2008 connected to MySQL database. Previously in vb6 i was using adodb and now when i googled and got a few sample projects done using VS2008 in which most of the module codes were OLEDB.....To which method should i stick to...?
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Apr 9, 2010
when i will enter form no. in the text box this should check the on the lost focus event either this form no. is already exsist or not.if exist show msgbox?
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Jun 14, 2012
When a vb project is connected to ms access(DB) whenever u make any changes in d db using addNew or insert or delete follwed by update command the changes are reflected in copy of original db in the debug folder of our project.in which updated values chnges with each run .. no changes are reflected in d original db.is dere any command to make dese changes permanent.
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Apr 5, 2010
I have a windows app that has a bindingNavigator connected to BindingSource that connects to an Access database. I am manually adding a record to the underlying database using an OLEDBConnection/command (cloning the current record). The insert into the database works fine, what I am not sure on how to do is force the bindingNavigatgor to refresh and read the new record and refelect it in the record count/next/previous buttons.Jack
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Sep 22, 2011
I've searched the forums but never seems to find an answer for this one.. I recently connected to MySQL database server "Automatically" in Visual Studio 2010. I want to know if there's a way to determine the connection state for "Automatically created" connections in Visual Studio 2010. I know how to do it for"programmatically created" connections but just want to know how on the auto-generated ones.
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Sep 2, 2011
my system is already working. I used VB.net and mysql. i used ODBC DSN to connect .net to mysql. however i would like my system to run in a Local Area Connection.
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