I am trying to do simple insert, update, delete, select statements within VB .NET to access a MS Access database. I have tried all kinds of solutions offered on the web and while the code seems to work, no rows are inserted. Also, I have tried, unsuccessfully, to use the Try/Catch to see if there's an error with no success. I have attached the versions of VB .Net and MS Access I am using: Here's the code:
I am working on arrays but i need to do a sql update statement. Contents of the array are also part a primary key in my table.How do I do an update using the array for example if my array is room names and my other table values are start date, end date and campus ID.
I need to update more than one DataAdapters, so I used the
Dim sqlcmdbldUser As New OleDbCommandBuilder(dtaadpUser) Dim sqlcmdbldPoints As New OleDbCommandBuilder(dtaadpPoints)
But only one of them works, the second one brings up errors if I try to update the DataAdapter. Is there a way of using and updating multiple data adapters?
I wrote simple update/insert statements that are returning a syntax error, what am I missing? The table name is notes, the field note is type memo, acaps is a double. update notes set note='why is there a syntax error' where acaps=12345
Can someone give me a site to a tutorial that will help me write a program that will generate a pattern using do while, if else statements,and do until statements. I have been using google but I can't find anything. I need to generate patterns a certain size 6 by 6 or similar such as something like a checkerboard but where the ^ symbols is there a suppose to be a blank space..
I am working on project. i am using vb.net and sql server 2005. in my project i have a form which records student details. so if i want to update the record of an existing student, i delete the record and insert a new record to the table with the same identity column value using IDENTITY_INSERT. is this ok if i do it like this.
im having a bit of trouble with the delete and add record for my database. [code]The error im getting is Update requires a valid UpdateCommand when passed DataRow collection with modified rows.
add new records into access but the uploader didn't add any delete and update button. im hoping that anyone in here can continue he's work. because he's not active on youtube anymore and i tried to message him but not replying..
this is the code below i just need the delete and update button.
Private Sub add_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load con.ConnectionString = "provider= microsoft.jet.oledb.4.0; data source =..VG.mdb" con.Open()
I have connected my access database to vb.net and program is capable to show the database in the datagridview. but what i want is when i change the data in the datagridview and click onto update button,changes i made should be saved in database so when i execute the application again i should be able to see the updated database in the datagridview.
Ive created a form to add/delete/update records in a database ,but when i try and open the frm i get a NullReferenceExceptionUnhandled error, below is my code, i cannot for the life of me see where i've gone wrong, but maybe someone else can spot it?[code]
I have created simple database project, using vb.net, ado.net, oledb, datatable, datagridview.My program is working nice, I just need Help with how to add, delete, update and edit records.
I am having trouble updating or deleting rows that were just added to my form. If I close the form and then open it again everything works as intended. Below is a bit of code from the project.
'Delete row from DataGridView Try MasterDataSet.PaintStock.Rows(PaintStockDataGridView.CurrentRow.Index).Delete()
I am having the same problem <as this >> when i update my record in Access Database. It is successfully updated the record in the database. but the dataset in my project is still not updated. I am using vb 2005 to develop the application.
from the insert code, I don't quite know how to make it into update.some examples on update of data.Here is the code for the insert part:Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
I am not sure if I can do update, delete and insert in one form. The problem is that in this one form I have 3 textbox and 1 combobox which the user have to enter each column and click on the submit button which is for insert. So how can I do this with delete and update.
i'm querying 2 tables from an access 2007 database + i've worked out the SELECT statement which works ok:
vb "SELECT a.id, a.number, a.subjectName, a.years, a.birthYear, b.note FROM Table1 AS a INNER JOIN Table2 AS b ON a.id = b.id"
now i need the insert, update, delete commands. i'm using parameters:here are my insert, update, delete commands for a single table. how should i modify them to work with the 2 tables as shown in the SELECT statement?
vb "INSERT INTO Table1 VALUES(@id, @number, @subjectName, @years, @birthYear)" vb "UPDATE Table1 SET id = @id, [number] = @number, subjectName = @subjectName, years = @years, " & _
I'm trying to get the Update button and my Delete button to work. Please advice me accordingly on what I'm doing wrongly. And as for the delete button, I have little clue of doing it. What I want the Update button to do: Basically I have a datagridview in my form. And the DGV displays all the records I have in my mdb file. The user could edit the records directly at the DGV and when the Update button is clicked, both DGV and database gets updated.
I have a bound combo box with employee profile names. I have two buttons: save and delete buttons.When I edit a selected profile, I hit save and automatically the change is reflected in the bound combo box, but when I hit delete or create new profile, I have to close the app and when I open it I see the changes in the bound combo box.The combobox.Refresh() no workThis is my code:
Private Sub deleteselectedprofile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_deleteprofile_oninsideprofiledittap1.Click Dim mconn As New SqlConnection("Data Source=(local);Initial Catalog=epmapp_db;Integrated
I have a datatable populated from an SQL Server 2008 database table. I created a DataAdapter with a commandbuilder to manage the updating, inserting, and deleting of records. The Updating and Inserting work as expected. However, Delete does not. The code runs through just fine without any errors. The number of records in the datatable after the row is deleted even reflects the deletion. The DataAdapter.Update works fine without any exceptions. But when checking the actual table in the SQL DB the deleted record is still there.Here are the parts of my code that deal with this table.
I am using UltraGrid for inserting data in table. The problem is that i need to do insert,update, delete with web service. I am getting dataSet from web service and display it into grid but when I do some changes on the grid for example insert or update data, I need also to send new dataSet to web service so that web service do update data.