Here is my sub for updating a Database using ODBC:
Public Sub UpdateDatabase(ByVal sql As String, ByVal parameters() As OdbcParameter)
Dim connectionString As String = "dsn=" & ODBC & ";uid=" & UID & ";pwd="
Try
[Code]....
But the following exception is shown:
NullReferenceException: Object reference not set to an instance of an object
Which seems to be triggered by this:
adapter.InsertCommand.ExecuteNonQuery()
I have a small vb.net application that fires a crystal report through crystal viewer.
The report uses an ODBC connection provided by 32-bit software accounts package, which is installed in the ODBC 32-bit This all works fine on 32-bit XP and 32-bit Win7 with no problems, When run on a win7 64-bit machine the application launches ok, but when it comes to running the report, it prompts for a database logon box for the odbc connection.
When the report is run seperate on its own, on the exact same pc through crystal reports desginer it runs fine, Its almost like the application is not picking the 32-bit ODBC set up is it the case that the connection needs to be coded rather than using the report connection,
how to connect to database using ODBC, where in connection string i will provide only DSN name. User id and Password should be entered dynamically. Like if i want to connect to SQL Server, I will provide dsn name, User id and password shud be entered dynamically. Already there is a form in SQL Server for Logging in, want to connect to tat?
View 2 RepliesI want to create ODBC DSN for a database (which will be included in my application folder whenever a user setups the application). I want to know how to create ODBC with all the required parameters so that the first thing that is done when the setup is being run is connecting the database to the application. I have tried using default VB.NET setup wizard and Installshield.
View 1 Replieswith odbc connection in vb.net example i have add button on my database and i want that what ive added will be added on the database with odbc connection.i know how in oledb but im really confuse with odbc
View 2 RepliesI am connecting to Citrix database using SQL-defined ODBC. Having a problem with it. I am updating an existing application that uses the ODBC in SQL, and it connects fine. However, that database connection is secured, only available on the production side. The test side has a remote connection. I am attempting to change the remote connection values to match the parameters of the SQL-based ODBC, but the labels are different, and it doesn't seem to match. Specifically, I don't think I'm getting the DataSource correct. Also, it can't find the username and password that I use to log into the remoter connection - I get an error message "Invalid authorization specification".
View 1 RepliesI want to query a XML file (actual database) via odbc, but i do not know how and where to start and what program to use for it.
View 1 RepliesIn the old version Visual Basic 6, my code to connect to our Prophet 21 Progress database was:
Global DBConnect (5) as new ADODB.connection Global DBRec(5) as new ADODB.recordset Public Function Open_P21(SQL_Str As String, Ch As Integer, Status As Boolean)
[Code]...
I do need to connect oracle database via odbc in my vs 2005 project. I have no idea how to connect, kindly give me connection string codes and prerequisites.
View 7 Repliesi have used this code to insert information into microsoft access database.however i dont know how to edit information from vb.the coding is below:
Private
Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code].....
I have an Access table in which I connect through ODBC commands. I want to delete the 50% of data rows from it. Can anyone knows a string to write for doing that? ALARMLOG is my table. In MS SQL I tryed succesfully the following command :
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I am fresher in vb.net but I have experience in vb 6.0. But I want to connect database in sql server through sql connection. In that case how to create connection with window or sqlserver authintication mode and how to add or update new record in data base in batch transaction. Please help me with sample code.
So that I can understand eassily.
update statement, i am trying to update a row within a access 2007 database here is my code.
[Code]...
i am new to vb .net i just want to ask why is it i don't see the odbc data adapter in the toolbox pane? i just have (under data) pointer, dataset, datagridview, bindingsource, and binding navigator.
View 3 RepliesI am using vb.net with access database. I am using sql. How can i update database with the value 40'6"(Feet and inches values)
View 5 RepliesWhat is wrong with this code. It does not update the access database and no error.
Dim conn As New OleDbConnection
Dim sqlQRY As String = "SELECT * FROM StdMaster WHERE StuNo = " & txtStudentNo.Text & " ORDER BY StuNo"
[CODE]...
I am using MySQL ODBC 3.51 Driver to connect odbc to MySQl.But it shows the following error.
[Code]...
is there a way to update a database row with the update command by first defining all parameters and then all values just like you can in the insert command? "insert into table1 (parameter1,parameter2,....) values (value1, value2,....)"something like "set table1 (parameter1, parameter2) values (value1,value 2,...) where ...."?because I only know the syntax to define each parameters value "set table parameter1=value, parameter2=value2... where"
View 8 RepliesThis program is very difficult for me, but I must get threw it or I cannot finish... What I am doing is making a Database of foreign Languages with the spelling of the words and the pronounciation inside the database... The USER enters a paragraph of words into the translator textbox and pushed translate. The program has a DATABANK of words with the phonetic spellings and matches the word, then translates to phonetics. The problem is that new words keep appearing inside the language. So I incorporated a Database of 2 fields
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I created a dataset and i am using OleDbDataAdapter to insert new values to access database. But when i close the program and after open it, values are not in the database. How can i solve this problem? Also, i have another problem. When i write codes that
[Code]...
i want to update my inventory table in database from another database name. Example: In VB, i had a form named Orderform. User need to select e product that they want and key in the quantity. all these information are able to store inside my database named ORDERTAB. but now the problem is i wanted to update another field in my database named INVENTORY by minus the quantity tat the user had key previously. i totally had no idea how it going to works.
View 3 RepliesI got a system which i want to insert, delete, update the data into my database and the data from database will be display using datagrid. The below is the coding for one of my button, delete.
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
Try
btnSearchEmpNo.Enabled = False[code].....
Now I wanna set when user click on this button to delete a employee (for example) then the datagrid that i have in my application will not show the data of the deleted employee but in the background, the employee haven't been deleted from database.The employee only will be deleted from database when the user click on SAVE button.I know this application have to use RowState but how?
I figure why this happens, and is because of Windows 7 and its permissions. Now I'm trying to fix this. but the code for this is a bit complicated for me. I found on this website an example on how to set the permissions on files. ([URL])
[Code]...
i am just developing a library management system as one of my project. i using vb.net 2010 and the MS Access 2007 as back end. when i save some records into my database through my application it is correctly saved and i confirmed it through opening the relevant table in the database. but when i restart the application all the entered data were missing..
View 5 Repliesi have the connection to the database.i have a datatable that stores the info from the database.i just cant seem to get the database to update. the program is a website and when the user clicks submits his account is created. if all the data is verified and the screen name doesnt already exist,a new row in the datatable is created and the info is stored in the correct columns. this is where im stuck. whats the next step for getting the data from the datatable to the database. do i have to insert a row to the dataset and accept again, and then with the database?
View 2 RepliesI want to update data in Province table in eUnion.mdb using Form2.
View 1 RepliesIll start this by saying im still very new to VB, ive had some programming expereice here and there since high school, but never really did much with it till now.Ive got a small app that im working on for a side project, i want to add the details of a given days records from a simple POS system i have built up so far. At this point i have all of the information generated and i cant seem to get the app to commit it to the database. I have seen tons of posts on this, and i have followed a bunch of them to no avail. Im sure this problem is because i have the code written wrong, and i cant get it figured out. Here is the code that im using to try to save the data:
Dim hoursworked As TimeSpan = dtpEndTime.Value.Subtract(dtpStartTime.Value)
hours As Double = Math.Round(hoursworked.Hours + (hoursworked.Minutes / 60), 2)
[code].....
I'm currently working on my A2 computing project, and I am having slight difficulties updating and saving the data in my database when it is entered on a form in VB. I cannot find any reason why it wouldn't work, but if someone could suggest a better way to do it, it would be great as everything else works. It's in the btnsave at the bottom, and when you click the button on the form it come up with a very unuseful error, which is no help to anyone.
This is the code for the edit details form, where on loading, the customers details which are currently in the database are already there, and they can change things on it and save it to update their details if anything changes.
Public Class EditMyDetails
Dim con As New OleDb.OleDbConnection
Dim dbProvider As String
[Code].....
I am trying to update a few entries in a access database through VB.NET. With the code I used below could anyone help me out and show me where I made a mistake because it is creating new database entries instead of updating them.
[Code]...
Here is my
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim NewRow As TimeClockDataSet.EmployeesRow
NewRow = TimeClockDataSet.Employees.NewRow
[CODE]...............
I have experimented with other classes but I cannot get the database to update.
