I have linked VB to my sql server and all my tables and data load correctly in VB.I drag and dropped my table in "detail" view and then debugged the program, little did I know, when I tried to add a new instance of data into my table I literally have to enter the primary key. I am trying to figure out how to set the "STU_ID" (PrimaryKey) to auto-increment off of the last row of data on my table.
View 3 RepliesHere is the code snippet
objCommand.CommandText = "UPDATE tblCustomers SET weight= @weight, height= @height WHERE id=@id "
What i want to do is the following:
I have a form and i want,by clicking the appropriate button, to update the height and weight values which have the specified primary key 'id'.
The primary key 'id' is of type IDENTITY.The problem is that the above code does not work. It says Must declare the scalar variable "@id".
reflect a set of data in xml using the above mentioned tools.i was thinking that the xml should be converted to a dataset first. however, i couldn't see any useful sites.
View 7 RepliesI'm trying to add a new data connection to a SQL Server database that lives out on my network. When I add the new connection I get the "Choose Data Source" dialog but it only contains the following:
Microsoft Access Database File
Microsoft SQL Server Database File
I don't see an option for a remote SQL database. How can I add that option to my list?
I am currently developing an application that is linked to a MS SQL Server 2008 Database. So now I realised that I needed to make a few minor changes to the database (add new columns to some tables, change the data type of a few columsn in some tables). After making the changes, I realised that these changes have not been updated in my VB application's dataset. I then tried to "refresh" the dataset, but it still is not updating the dataset. What do I need to do to update the dataset to reflect the changes in the database?
View 1 RepliesI am trying to rewrite a program written in an older version of VB. The old program has a input table that looks like the one below.
1) How to I get the row headers to reflect the row line number? I have tried DataGridView1.rows(1).HeaderCell.Value = "2" but that didn't work.
2) How do I make one (or more) of the cells into buttons? Each of the cells marked "Change" and "View" are buttons.
I have an object databound to a WinForm. One property, BOLNumber is bound to a textbox on the form. When you change the value in the form, the underlying BOLNumber property is changed. But the property setter does some "formatting" to the value. I want to BOLNumber textbox to reflect the changes to the value made in the property setter immediately upon the textbox losing focus. I tried implementing the INotifyPropertyChanged interface, but I am either doing something wrong or misunderstanding something it would seem. How do I get the databound control to reflect the changes to the underlying data source?
Public Event PropertyChanged As PropertyChangedEventHandler _
Implements INotifyPropertyChanged.PropertyChanged
Public Property BOLNumber As String
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I want to use dataset for sql server for adding/modifying/deleting data from sql server.
View 8 RepliesMy application is in VS 2008 (vb.net Windows form)
I want tips for this:
What types of care I take for it?
What types of problems can be generally happen?
Using VB.Net and SQL Server 2008 R2: I have recently had a database that using sp_who2 reflects a connection ".Net SqlClient Data Provider" is still active even though the .Net application has closed and disposed of all connections.
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I've made a dataset using the dataset designer, and I'm trying to add a column to reflect changes made to the database (added a column, nothing fancy). Is there a way to 'refresh' the dataset schema from the datasource without deleting my adapter (and all the methods and queries I've created)?
View 2 RepliesI have written a small application that will allow the user to use DreamScenes on there desktop in Windows XP but i can't get the screen to refresh to reflect the desktop changes. The refresh routine i have used will only work once....This program is part of an application i am writing to allow users to customize/modify the windows xp source.Here is my code:
Imports System.Collections.ObjectModel
Public Class Form1
Dim DSNAME As String
[code].....
I am wondering if anyone else has experienced any issues with adding a data source to a VB.NET 2010 solution using the 'Add New Data Source' wizard. I am getting a very odd behavior when i add the data source, I see a .xsd file is added in my solution explorer but I do not get a data source listed in the data source view. In short, it will add a dataset to the project but will not add an entry in the project data sources. I realize I can code to get the same results but purely out of convenience I would much prefer to just use the wizard and the corresponding table adapters it generates as I always did.
By the way, a google search shows that many people had similar issues in the 2005 version but their issues involved trying to use special characters in the project path (i.e. 'C:My ProjectsR & DMy Tool. I do not use any special characters in my project paths and yet am still experiencing this issue.
Hey guys, I am trying to send data from client to server (encrypted) and the string sent from the client is not the same as recieved from the server. I've been killing my brain for hours to get this to work but I cant manage. Im converting everything to Base64 string.
Client:
Public Sub SendMessage(ByVal msg As String)
Try
SyncLock myclient.GetStream
sw = New IO.StreamWriter(myclient.GetStream)
[code]....
I am using visual studio 2010, service-based database. I created a simple table and created an edit form for that table. But when I save a row and then clear the text of a textbox (which holds a decimal value), it simply does not let me tab off the text box or save it. I put a ErrorProvider to see whats going on. It says "Input string was not in correct format". But I allowed this column to be null in my table. So how do I fix this error. And by the way, it does not happen for all text boxes.
View 3 RepliesI am adding data to two listboxes: listbox1 and listbox2. Now i want so sort Listbox 1, witch i can do with listbox1.sorted = true. But then listbox 2 has to be sorted the same way. (The data has to be matched) How can i do this?
View 1 RepliesI built the sample project "How Do I" Data Access and ran into a problem adding, updating or deleting records. The project works like a champ until this step... It will let me delete, change or add records just fine, but when I save and close project and go back to my "show table data" in the database explorer nothing has changed?
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VWD 2010 Express SQL Server 2008 R2 I have just jumped in to this and baffled at data access that is available. I have a tabbed page with labels, textboxes and dropdown lists. The user enters data in one box, selects from a dropdown, then enters text in a textbox. On the last textbox change event, I want to do a SQL select and populate the rest of the textboxes. Used to be so simple. Do not want bound gridview, etc. I want to handle the data, and on submit, do the update/ insert.
View 9 RepliesIs there a way to add rows to a DGV as I want to add information from another form to the DGV. The .Rows.Add() does not work as I am told I can not add rows to a data bound grid.Short of unbinding the DGV and re writing everything, I can not see how to do it.
View 2 Replieshow to insert data to a datagrid at run time, like values for the columns will be entered in text boxes and after cliking a button it should get inserted in to the data grid and have to be displayed immediately in the grid.
View 16 RepliesSo I will be writing a vb program that will need to connect to and display data from a SQL server in a list/dropdown menu. Eventually this program will be ported into a asp.net web app. For now it will be local.
View 8 RepliesI am trying to retrieve data row by row from my SQL Server and load them into my respective textboxes, I was doing the below code but of course it doesn't work as the For Each loop will load every single textboxes with each data retrieved, ran out of ideas.
Private Sub retrieve_Data()
Dim con As New SqlConnection
Dim cmd As New SqlCommand
[Code]....
i would like to ask for help, im trying to login to a server by httpresponse and http request. My code should get cookies and redirect to home page as login user, but for some reason i can't make it for.[code]
View 3 RepliesDoes anyone know how to store data from a RTD server into a array for calculations...?
View 2 RepliesI'm trying to import excel file into sql sever and then get some values that I decide.I read several posts but anyway I don't succed to proceding.First:
mypath=textbox1.text
Excelconnection = New OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0; data source=" + myPath + "; Extended Properties='Excel 8.0;HDR=Yes;IMEX=1'")
Excelconnection.Open()
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I will start off here by asking the question. How do I make the data from a database be bound to my project? I keep trying to add a new data source so that I can drag and drop things to my form, but I am unable to. I follow the steps, choosing an OLE DB, the file's location (D:Data Connected Applicationsfile name) The conecting string looks like: Provider=Microsoft.ACE.OLEDB.12.0;Data Source="D:Data Connected ApplicationsItem_Database_A.accdb". I choose the objects that I want (In this case, the entire tables option) and then it returns a message to me stating that: An error occurred while creating the new data source: Could not get information for 'WindowsApplication1.Item_Database_A.accdbDataSet3'
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im trying to make a project that obtain data from a text file and place records into a SQL server DB (.mdf).
basically i ve created my database, its ready but the thing is i dont know how to retrieve data from text file and put the records into DB
I have some code that retrieves some data from multiple tables.This works fine.Now I want the data I retrieved to ADD to an excisting table in an Access 2003 DB.
How can I achieve this.I searched this forum and google...without succes :-(
The code I use to retrieve the data from sql server 2005: Dim connection As New SqlConnection(strConnectionStringSQL)
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I defined a database using SQL Server 2008 R2 Express, and connected to it using Visual Basic 2010 Express. For some reason though, when I use the database in the program, it wants to start off using a negative primary key.Is there any way to make the primary key only a positive number?
View 3 Repliesi am trying to save data from vb.net form in sql server 2008 below is the code which i am using but the only problem is . i am not getting any error instead the data which is being saved in sql server in my First Name , Last Name and Address fields is not the one i insert into textboxes, when i check the backend it shows me my field values as first name , last name and address.
Dim FirstName As String
Dim LastName As String
Dim Address As String
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