I'm at another wall in my project. I've been trying to get it to add a new record to a table but I got a message that said "Object reference not set to an instance of an object" but I have no clue where the error is popping up. I am also unsure of whether the coding for adding a record will actually work on not.Here is the code for the form with the bits subs that I'm sure aren't the problem removed (as they have no relevance to adding a record);
Imports System
Imports System.Data
Imports System.Data.OleDb
Public Class NewStock
We're trying to work out some code for saving from a textbox to a database field without using DataGridViiew. We have it working using the automated controls that Visual Studio gives us, but if we have a form with text boxes, can we make it so that, on a button click, it dumps that stuff into a field in a table?
I'm getting an error doing this. Here is my Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click Dim con As New OleDb.OleDbConnection Dim dbProvider As String Dim dbSource As String Dim dsgames As New DataSet [Code] ..... The error appears on the very final line, "dagames.Update(dsgames, "games"). This is the error: "Operation must use an updateable query."
I've been having a problem adding a record to an Access database using datasets and da.update etc. I'm trying to create a simple program that displays the records of a database table in a series of text boxes. I've managed to get my next and previous buttons working correctly and my update button works correctly too. The problem occurs when I try to add a new record. I keep getting a "Syntax error in INSERT INTO statement" whenever I click my add button.
I have a access database with these columns. USER_ID,COUNT,TIMES
Let say the current record is this: USER_ID,COUNT,TIMES STEVE20,24,1.5
Now I want to updated the current count record and times, but before updating I want the old record to be added to the new record. What should be my query?
I am having no issues reading from an Access database, just when I am trying to add a record to the database I am getting no results. I am using a 64bit computer, and am aware about running in the x86 solution platform. I am getting the result that it hassuccessfully added. But nothing is showing up in Access
Private Sub voteBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles voteBtn.Click Dim decision As String
im trying to add data to an ms access table that I have created elsewhere in the app. The code I am using is below but I keep getting an error message (Update requires a valid InsertCommand when passed DataRow collection with new rows.)
con.Open() sql = "SELECT * FROM attachment" da = New OleDb.OleDbDataAdapter(sql, con) da.Fill(ds, "Attachment")
I just want to add a value from a textbox/variable and save it as a new record in a MS Access Database after a button click.
I've set up the database, set up the tables required.
From what I gather, I need to first link declare 'Imports System.Data' outside all the code. And also define a variable as a connection (Dim con As New OleDb.OleDbConnection) then access the database with "con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source = PathName").
Having trouble adding a new record to an access table. I have the table called ITEM. Want to create a new row and then add a record to the table. Can't seem to open to connect to the table... Its bugging me :L
I have a database linked to my VB.NET project using the data source wizard. I've created a log in form using a table in access that has the details required to log in.
The code is: Imports System.Data Public Class Form1
I have been trying to get the database sample to work. I have been unable to figure it out. I posted my code below, but something isn't working right and I cant figure it out. Please review my code if you have a chance and let me know what I am doing wrong.
I have been following a tutorial in a book Vb 2005 Jumpstart Ch 4..Anyway I have followed the books code exactly and the program runs.It connects to Amazons web service and allows the user to search and display books, the application also allows the user to save the titles that they wish by clicking an Add Title button, when the user does this the current focus title is saved to the database and can be viewed off line.When I hit the add title the record gets saved as I can hit the catalog button which opens a new form with a datagrid that has all the titles I just saved in it!! But when I close the app and run it again the catalog is gone?? back to no records again?Now ive never worked with SQL databases before and this is me just having a go at .Net so I have no idea whats wrong or where to look.[code]
How do I increment a primary key that is in integer digit format to a record when adding or pressing an "Add New" button that I have on my form. In other words, I have a 'Add New' Button that has the code following:
[code]...
As you can see from the above code, that most of the textboxes are cleared so that a enduser can insert his or her values and information. Currently, I do have the OrderNumber which is the primary key cleared, however, I would rather have this field auto incremented to the next digit. For some reason, at the moment, I just do not know where to begin to set this field so that a digit canbe inserted and incremented rather than cleared.
I'm following the sops from msdn on how to create a database from scratch. I would now like to programmatically add a single record via a command button?
Hi how's it going. In the middle of coding a banking application for a project. Part of it involves mortgage interest repayments. Was wondering if there was any way of logging the time a new record was created and added to the database and then adding interest to the balance owed periodically every 30 days..
I'm looking for a simple code to get a specific record from an access table or query.say the table is called "tblPriceList" and there are field called "product", "color", "size" and "price". I want to get the price when I know the value of the other 3 fields and assign it to a value "x"say product = "Clip", color ="Red", size ="large" orsay product = 1 color = 2 and size = 3What is the syntax for the method?
this is my code to display records from my ms-access database whenever i click the button next. But the code is only displaying the last record in the database. I have tried using for loop but it is giving me error.
Code to insert and update the record. I read the record sucessfully but without exception applied. I want also use the try catch statement for catch exception if generate. I want to know only sql query with in the try catch or datset connection adapter all in the try catch.
first of all here is the code that populates the fields when the user logs in. This code is correct and works fine.
Dim passwordrow() As Data.DataRow passwordrow = MyDBDataSet.Tables("Customer").Select("Username = '" & txtusername.Text & "'") 'This try statement checks to see if a row has successfully been found
i want to create login form in VB.NET i will done a lot of work like inserting data and also retrieving data but i want to know that how can i get specific record from data base and want to match with my input .
Imports System.Data.OleDb Public Class frmmain Dim da As OleDbDataAdapter
