I am new to VB and trying my hand at the below code. I am trying to determine the number of records for each possible combination. Depending on the outcome of the number of records groups may be combined. I am not able to find the record count for each grouping. Can you please look at the code below and suggest what I am doing wrong?
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I need to display records from a database in Access in Visual Studio 2010. The project Im looking to create needs to display all of the records from the database and allow the user to navigate throughout the set of records.
I need controls and codes to:
MoveNext
MovePrevious
FirstRecord
LastRecord
Exit
I am using VS2010/VB.NET/MS Access 2007 I had added a database from ms access to the vb.net application (strongly typed)that table contains an autonumber field.I made a button to add new row and another one to save the row the problem is that I want to get the last autonumber from the database so that I can save the row.
View 1 RepliesI have a database in access and one of the fields is 'Is Quick'. I have a query that filters all of these out. How would I get the data from that query in Visual Studio 2010 (Express). VB code please.
View 1 RepliesIs it possible to import a query from Access 2003 into Visual studio 2010 (language used vb.net).
I created the queries originally for a project, then when I imported the database to visual studio I can only use the tables that i created. I have started looking at the coding to re-do these, but if I can import them would it be quicker?
how can i return the number of records processed from an sql procedure whether it is a select or update/insert query and how can i receive it in the calling method in vb .net.
View 4 RepliesI 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 RepliesHOW TO update and query and erase in database on visual studio using officce access
View 3 RepliesI am working in a project where i have to add employees in a company. I have a form with text fields(for example name,surname,age,...). What i want is to insert this txt values into a database. My project is connected with an sql database. How can i add the values into a data table on button click("submit")?
View 9 Repliesi'm getting an error with the code below
The Error.... SQL Syntax Errors Encountered
Error in Select clause: expression near 'DESC'.
Missing from clause
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I'm looking for a control that allows images to be placed onto it and moved about. Moreover, I need to draw lines between the images. It will sort of be like the query designer in SQL Man Studio. It will be used as a virtual desktop where a variety of objects (and their icon representations) can be freely placed and moved. I'm having a blank and cant remember where I saw this before.
View 2 RepliesI've found a sql string like: "SELECT Count(*) FROM table"My question is: how can I use this string and get the result into a variable in VB2010? I used to program with VB6 for years, but now things are very different.
View 1 RepliesI am trying to connect to an Access DB file when I do a drag and drop from the dataset to the form i get the following error [code]
View 1 RepliesI have created a form that does some access sql statements. Using the below code, I can run 9 different SQL statements that purge and load tables. For some reason 1 statement does not work. I do not receive any error, it just doenst load the table.
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I have a class assignment and I am having some difficulty with an Access 2010 database and OLE objects in the database. I have the database imported into the project and I am able to view the records from the database that I have in labels and combo boxes.
I used the database DataSoure wizard to create my connection string and import the Access database. In the DataSouce window I set the DataSet for the "Flag" column that contains my pictures to use a picture box object type and added the data bound object to my form.
When I run the application all the field from the database show as expected however, the picture box object does not display the images from the database. When I check the picture box object in the designer the properties window shows that the image source is bound to my database with the little database icon and the data bindings are all correct.
I am trying to write a Project to keep track of my favorite sports teams and scores and store and retrieve the data from a database. I am using vb.net and accdb files. I am able to connect to the tables( 3 tables Players'Keep track of individual stats',OpposingTeams'Keep track of who my team played',Games'matches between the two teams') and Visual studio made it easy to display the teams in comboboxes but this is as far as i can get.
I am wondering how to have a textbox query the Games table and "insert a record into the table, thus creating a primary key and returning the primary key to visual studio and display it in the texbox"
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I have a program designed in VB.net for a wafer probing system. The software has 3 main components that come standard and three that are options. When a customer decides not to have the three options they are disabled but still in the program. If at some point they decide to buy the options, one of our technicians would have to go there and be able to access the program with an administrative account to enabled the components.
Does anyone have any suggestions on what the easiest way to accomplish this?
i have create a software for my college which is document management. well am doing good so far up to now where i need to upgrade my database what i mean ?
in case i need to make any changes to my database i don't want to enter the database and create new table or add new fields to existing table to my current database,i would like to do that throught visual studio 2010 programaticaly. something like an additional application where i will choose my database path and the application will upgrade the database with new tables or new fields .
i would like also to ask, in order to create database,or if you already have the database and you like to just open the connection to it programaticaly and add new field ,or relate some table ,you have to work with different librarys? Like ADOX,DAO etc ? and other.?
I am using the publish wizard in VB 2010 Professional for deployment as I tried the InstallShield and the Standard Build and cannot get support. My last resort is this wizard. Please help me I am getting the following 2 warnings. I downloaded MDAC 2.8 SP1 for warning 2 and after I run the program it doesn't upgrade and appear in VB2010. How can I install it in VB2010 Pro. Also How can I get the .Net.Framework.2.0 installed.
Warning 2 The 'SAP Crystal Reports Runtime Engine for .NET Framework 4.0' item selected requires 'Microsoft.Data.Access.Components.2.8'. Select the missing prerequisite in the Prerequisites Dialog Box or create a bootstrapper
package for the missing prerequisite. SendGlobalMobileAdvertisingBlasts
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If I create a windows app which I link to an MS Access databse file that already exists..will I need to have MS Office installed on every computer at which I want to use the app? If not then how do I go about making a standalone windows app that will store information in a database of some form or another ?
View 1 RepliesI am trying to write data to a binary file using the Print() method, but when I run it I get the System.IO exception Bad File Mode.
Here's the code for the FileOpen declaration, that might have something to do with it?
FileOpen(filenumber, "path to file", OpenMode.Binary, OpenAccess.Write, OpenShare.LockReadWrite)
Print(filenumber, expression(variable))
I have to retrieve data in two TextBoxes but the data should belong to tokennum that I am getting from first text box. I have a total of three TextBoxes and one button. In a database called db1 I have a table named Table1 and two fields ser as serial number, tokennum for token number and name for name of employees.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim con As New OleDb.OleDbConnection
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And the following sub routine is load in the Listbox_selectedindexchanged event
CODE:
And listitem class
CODE:
And subsequently I want to Design the select query by adding the three column i.e. First Name, Middle Name and Last Name in the Listbox and by selecting the list item that will show in text box.
Will i be able to successfully install 2010 beta 2 side by side 2008? because i want to test 2010 features and some development toolkits such as silverlight while i don't want to uninstall my visual studio 2008 professional.
View 2 RepliesI'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 RepliesBelow is my code to call the records or save/update to the database which works fine
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I have been trying to add First Previous Next Last buttons to my windows form (visual studio 2008), everything I have tried or found does not work.
I'd like to take all suggestion either in C# or VB.NET.I have a DB diagram like the image below. I also include the database script here [URL]In the Students table, CountryId and RoomId column are allowed null. Because some records do not have info about room and country yet.Also, some students do not have essays.I'm doing a joint query with all tables. I want to select all students to project the result like this:Wanted query result.
Here's my current query that gives the result like the image below:
Dim db As New DBDataContext
Dim query = From st In db.Students _
Join c In db.Countries On c.Id Equals st.Id _
Join r In db.Rooms On r.Id Equals st.RoomId _
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current query result I got only one result back because I have (2) William NoMan record in every table. But I don't get anything about others, like (3) Sync Master who has everything but RoomId.What do I need to modify the query above so it will give me all students like in the wanted query image above?
I receive this error: [code]whenever I run a query via a visual studio project in vb.net. If I run the same query via Open Office Base, it takes a long time but it works. How do I go about troubleshooting whats causing this?
View 2 RepliesI'm trying to write a Vistual Studio 2008 macro to run a stored TFS query and display the results.Previously I've created a query and named it 'Assigned to Me' to display all the work items currently assigned to me.Instead of View->Team Explorer, click, click down the tree to My Queries then double click 'Assigned to me' I want to write a macro to automate these steps.
Sub TemporaryMacro()
DTE.Windows.Item("{131369F2-062D-44A2-8671-91FF31EFB4F4}").Activate() 'Team Explorer
DTE.ActiveWindow.Object.GetItem("tfsserverMyProjectWork ItemsMy QueriesAssigned to Me").Select(vsUISelectionType.vsUISelectionTypeSelect)
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I know this is basic, but my mind is totally blanc. I'm trying to retrieve all records from a table with a specific code.
Dim cmd As New MySqlCommand("SELECT myValueRow FROM myTable WHERE searchRow = 'test'", myconnection)
myreader = cm.executereader
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