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all groups > vb.net data > recent posts

repeated queries and performance
Posted by georgejetson at 11/1/2007 5:47:01 AM
Hello, To begin: I'm trying to 'trend' data on a graph, where x is time, and y is a value... Requirement would be something like: User selects a field to view Chart defaults to last 10 minutes (range shown on gui) Once every (1 to 5 seconds) a new query is issued for the latest and great...more >>


updating datagridview
Posted by Pascal at 10/30/2007 12:00:00 AM
Hello I began with vbnet and databinding. I created a database containing a table access Students. In a form frmListEleves I slipped and deposited the table in question and a datagridview was created automatically, as well as Calcul_mentalDataSet, ElevesBindingSource, ElevesTableAdapter. Th...more >>

Populate listbox with multiple columns from a dataset?
Posted by PhilsPhan at 10/29/2007 8:31:01 AM
I have tried this a number of different ways but to no avail. Like my subject hopefully explains, I am looking for a way to populate a listbox with multiple columns of data from a dataset. The dataset was filled (properly, I believe) from an *mdb database table in Access. Does anyone know if t...more >>

Re: Cannot create a new record?
Posted by dcraig at 10/26/2007 1:34:28 PM
I have had this problem in the past and got around it by using a currency manager and calling 'endCurrentEdit' on the currency manager before saving. Another trick I've used (in particular with datagrids) is to move the focus away from the currentControl before saving, in theory there is a 'e...more >>

Spell check for HTML Editor (a wrapper on MSHTML COM component)
Posted by Matrix at 10/26/2007 7:46:15 AM
Hi, I am trying use HTML Editor (a wrapper on MSHTML COM component) is there any way I can implement a spell check in this component I want it should support all facilities available with word like a spell checker dialog along with wavy lines which should be enabled when any bad word is typ...more >>

Spell check for HTML Editor (a wrapper on MSHTML COM component)
Posted by Matrix at 10/25/2007 3:04:45 AM
Hi, Hi, I am trying use HTML Editor (a wrapper on MSHTML COM component) is there any way I can implement a spell check in this component I want it should support all facilities available with word like a spell checker dialog along with wavy lines which should be enabled when any bad word...more >>

Re: [vb8] Add NewRow to .mdb problems
Posted by C-Services Holland b.v. at 10/25/2007 12:00:00 AM
Pitmaster schreef: > Hi there, > hoping somebody can help out here. Searched half earth to find a > solution but no success yet. The following code doesn't gave any fault > or warning but doesn't what it is suppose to do. > Can somebody explain why this code does not produce an extra new row ...more >>

[vb8] Add NewRow to .mdb problems
Posted by Pitmaster at 10/25/2007 12:00:00 AM
Hi there, hoping somebody can help out here. Searched half earth to find a solution but no success yet. The following code doesn't gave any fault or warning but doesn't what it is suppose to do. Can somebody explain why this code does not produce an extra new row in my database? Thanks, N...more >>



RE: Cannot create a new record?
Posted by d1rtyw0rm at 10/23/2007 7:32:34 AM
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SQL Server --> Dataset --> SQL Server
Posted by chetsjunk at 10/22/2007 7:29:19 PM
I am developing an application that will be able to be used offline from the SQL server and am trying to come up with a good way to do this. My thought at this moment is to basically work "offline" all the time and sync on a regular basis when connected. To do this, I have written several p...more >>

Fatloss computer program
Posted by Angel vasquez at 10/15/2007 7:35:01 PM
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HP Desktop for sale!
Posted by pbdude at 10/14/2007 4:11:52 AM
Hi, I have an unused HP Pavilion with the fallowing specs: # Processor: AMD Athlon 64 X2 4000+ (2.1GHz, 2000MT/s System Bus) # Memory: 2048MB PC2-5300 DDR2 SDRAM memory (2x1GB) (expandable to 8 GB (4 x 2 GB) (64-bit OS)/ 4 GB (4 x 1 GB) (32-bit OS)) # Hard Drive:320GB 7200RPM SATA 3G (3.0 Gb/s...more >>

Watch NFL Games Online
Posted by Dexter H. at 10/13/2007 10:03:11 PM
Watch NFL Games Online! For every one who wants to watch the games online because they dont live in the teams town or are at work i found a site that has basically every game covered. Its perfect if you have afford a monthly $70 direct tv nfl access subscription. they got a bunch of channels The s...more >>

Re: Using Parametized query to access a SQL Server database?
Posted by William (Bill) Vaughn at 10/11/2007 10:52:05 AM
I show how to do this (and a lot more) in an article I wrote for Developer.Com http://www.developer.com/db/article.php/10920_3693236_1 Yes, this might be more than you need, but there are walk-through examples here that should get your started. My book has more basic (and more advanced) examp...more >>

Re: Get the ODBC Database Name and Server name for a known DSN?
Posted by William (Bill) Vaughn at 10/11/2007 10:40:06 AM
A registered DSN is simply a ConnectionString saved to the Registry or to a file. I would look into the APIs to access the registry to pull out these values. The DSN is likely to have the database namd and server name imbedded therein. I illustrated how to do this in this article (see page 2)...more >>

Re: Interface with SQL
Posted by William (Bill) Vaughn at 10/11/2007 10:35:39 AM
I wrote a book just for you. "Hitchhiker's Guide to Visual Studio and SQL Server (7th Edtion)". It uses VB.NET examples to show how to work with SQL Server 2005. hth -- ____________________________________ William (Bill) Vaughn Author, Mentor, Consultant Microsoft MVP INETA Speaker ...more >>

Interface with SQL
Posted by John at 10/11/2007 9:01:01 AM
I am having a difficult time finding information (beginner's) on how to interface a VB.Net program with an SQL database. Can you point me in the right direction? -- John...more >>

Re: ExecuteNonQuery: Error Cannot open action query ''
Posted by Cor Ligthert[MVP] at 10/10/2007 8:38:35 PM
Hi, Do you have in the other thread altready a OleDB connection open? Close that than first, Cor...more >>

Re: Growing VB.Net application
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Re: ExecuteNonQuery: Error Cannot open action query ''
Posted by fniles at 10/10/2007 3:13:52 PM
I open the connection in the beginning of each thread. And at the end of each thread, I close the connection. So you think the error "Error Cannot open action query ''" is because the maximum connection has been reached ? Thanks. "Cor Ligthert[MVP]" <notmyfirstname@planet.nl> wrote in mes...more >>

ExecuteNonQuery: Error Cannot open action query ''
Posted by fniles at 10/10/2007 12:59:53 PM
I am using VB.NET 2005 and MS Access. I use OLEDbCommand ExecuteNonQuery to delete a record from a database. Whenever the program gets a message, it creates a new thread to process that message. In the thread I open the database, then process the message. Sometimes I get an error "Error Cannot...more >>

Re: Growing VB.Net application
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Re: Growing VB.Net application
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Re: Growing VB.Net application
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Re: Using Parametized query to access a SQL Server database?
Posted by Michel Posseth [MCP] at 9/29/2007 4:02:51 PM
Yes Just set up a data adapter and set the resulting dataset to the bindingsource HTH Michel "winlin" <winlin@verizon.com> schreef in bericht news:6128229B-C24E-4AA5-ACD0-F372A75467F7@microsoft.com... > Hello > Using VS2005 and VB.net when creating a DataGrid you drag and drop ...more >>

Get the ODBC Database Name and Server name for a known DSN?
Posted by RG at 9/25/2007 2:14:02 PM
Is there a way in a VB.NET 2003 program to get the ODBC Database Name and Server name for a known DSN (DataSource Name)? Thanks....more >>

Using Parametized query to access a SQL Server database?
Posted by winlin at 9/22/2007 5:34:01 PM
Hello Using VS2005 and VB.net when creating a DataGrid you drag and drop to connect to a SQL Server database. But can a DataGrid connect to a SQL Server database using a sub procedure or function using a parametized query and if so how? ...more >>

Why VS 2005 VB.net "Add New Item" "SQL Server Database" rejected?
Posted by winlin at 9/19/2007 4:28:03 PM
Hello Why would VS 2005 display the message: "An error occurred while establishing a connection to SQL Server 2005. This failure may be caused by the fact that under default setting SQL Server does not allow remote connections. Provider Named Pipes. Provider error 40, could not open connec...more >>

Using a DAL with Gridview and formatting columns
Posted by Brian Green at 9/18/2007 5:05:37 PM
I'm sure this is a very simple and basic question for you guys so please be kind if I miss the obvious. :-) I am currently using a VB DAL that I downloaded from http://www.a1vbcode.com/app-3822.asp and the only customization I have done is change all the shared members to public because I want...more >>

Re: Look up record
Posted by Vayse at 9/12/2007 12:00:00 AM
There are several ways of doing what you are looking for. I'll start you off, reply here if you want more detail. Lets call the database TestData.mdb and say the table is called Clients. 1) Datasource Wizard Look up "Walkthrough: Displaying Data on a Form in a Windows Application" to get MS ...more >>


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