Update And Delete Records In Database (3 Tier)

Jan 8, 2010

I have problems with the updating and deleting of records in database. I'm using ObjectDataSource and the GridView to display the results in the database. Below is the codes for the update and delete (in the DAL (data access layer). BTW, I'm doing 3 tier architecture in VB.

'update the records accordingly in the database.
Public Function UpdateBooks(ByVal title As String, ByVal borrowDate As String, ByVal dueDate As String, ByVal NameBorrower As String, ByVal book_id As Integer) As Integer
Dim connectionString As String = My.Settings.dbConnection
[Code] .....

I don't know why, but every time I try to update (by clicking on the update button), every thing is not updated, the page would refresh then the records still remain the same in the GridView. As for delete, when I clicked on the 'delete' button, the record is not deleted, it still remains there.

These are the codes in the (BLL (business logic layer)):
Public Function getUpdateBooks(ByVal title As String, ByVal borrowDate As String, ByVal dueDate As String, ByVal NameBorrower As String, ByVal book_id As Integer) As Integer
Dim ds As Integer = UserDA.UpdateBooks(title, borrowDate, dueDate, NameBorrower, book_id)
Return ds
[Code] .....

ADVERTISEMENT

Asp.net - Update / Delete The Table Records In ASPNETDB.MDF In Single Update / Delete Query?

Nov 29, 2010

I want to know how to Update / delete the table records in ASPNETDB.MDF in single update / delete query ?

View 1 Replies View Related

Get Records Into Oracle Database Delete From DB And Update The Records?

Oct 27, 2009

how to get records into oracle database delete from db & update the records i have successfully connected my vb 2008 win form with oracle 10g.

View 1 Replies View Related

Add / Delete / Update Records In A Database

Nov 19, 2009

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]

View 2 Replies View Related

.Net CommandBuilder Will Update, Insert, But Not Delete Records In SQL DB?

Feb 15, 2012

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.

[Code]...

View 1 Replies View Related

Delete / Update And Searching Records In Database?

Dec 14, 2010

1- How to delete & update any record in the DataBase in vb.net?
2- How to make search & advance search about any record in the DataBase in vb.net by date,ID ........etc?

View 1 Replies View Related

Insert, Update & Delete Records In Datagridview?

Jun 28, 2011

I'm creating a project using Microsoft Access 2007 & Visual Basic 2008.I have two tables in my database, Staff and Training Attended. The Training Attended records of Staff are displayed in datagridview, residing in a different form from the Staff detailsWhat my program does is, it will display all of the Staff's list of Training Attended in datagridview once I click the button in Staff form. I've succeeded in retrieving the records. using bindingsource.filterThe problem is that I can't insert/update/delete records in the Training Attended datagridview. it keep giving me this error: Update requires a valid UpdateCommand when passed DataRow collection with modified rows.

View 2 Replies View Related

Update And Delete Access Database Records?

Mar 6, 2011

First one is how to update database records without using me.validate[code]...

View 4 Replies View Related

Update Database And Delete Records Via Datagridview

Jun 23, 2010

I display my records using datagridview...I have also Save button which is intended to update any changes I make via the datagridview.I got this error whenever I type something in the address column "Update requires a valid UpdateCommand when passed DataRow collection with modified rows."[code]What code do I put so that whenever I highlight a row and click delete button or press delete key selected records will be deleted from datagridview as well as my database will be updated from any deletion?

View 8 Replies View Related

Add, Update, Delete Records From Oracle10gXE Using Text Boxes?

Sep 14, 2009

I'm designing a windows application in visual studio 2008 and connecting to oracle 10g XE but don't know how to add, update and delete records from my database using text boxes.

View 1 Replies View Related

Update And Delete Records From Access 2007 Database?

Nov 3, 2008

How do I insert,update,and delete records in vb.net 2008 from a Access 2007 database?Really, I figured out how to add records - but I cannot delete or update records. Any pointers, website tutorials, etc?Also, I am binding the database table to Listbox which is working, but I need to update the listbox with deletion and update changes too... 

View 3 Replies View Related

Adding Records On Database - Creating Update And Delete Button?

Mar 10, 2012

I have used this form to add new records on my database(ms access) in my database I have a column name 'ID' which is my primary key 'ID' is set as auto number. Now I am having a trouble on creating my update and delete button it's always saying "cannot be delete/update"

Here's my code on add, update and delete
Public Sub SaveRecord()
Try
Dim dbConn As OleDbConnection
Dim dbInsert As New OleDbCommand
Dim str1, str2, str3, str4, str5, str6, str7, str8, str9 As String
[Code] .....

Note my add is working perfectly fine. I just can find the error on my delete and update. Also I have used this to view it to my datagrid I don't know if its the right thing but it's working fine too.
'declared dbpath globally'
Dim dbPath As String = "Provider=Microsoft.Jet.Oledb.4.0; Data Source=../VG.mdb;Persist Security Info=False"
[Code] .....

Another thing is how to code each textbox and combobox to bind it to my records so that when I click on the datagridview each column will be distributed on each respective textbox.

View 1 Replies View Related

Application Which Can Create/update/delete/search Records Using Access Database?

Apr 24, 2010

i have a simple application which can create/update/delete/search records using Access database. If i add a record, save it, then close the application and run it again and search for that record, it appears. However, when i write some code to my application, nothing to do with the search function, and i run the application the record is not found. For example i added a button to clear the textfields, and when i ran the application the records i have added earlier were not found.

View 1 Replies View Related

Make Program That Input Data And Update, Delete Records From Access7?

Sep 17, 2011

I have widows7 on my dell notebook than tried to make my personal program on vb 2008

I wand to make program that i can input data and update, delete records from access7

View 4 Replies View Related

Add Records Using N-tier And Stored Procedure?

Sep 7, 2010

how can i add records using n-tier and stored procedure""

View 1 Replies View Related

Update, Append, Delete And Populate The Records To The Various Files Based On Two Distinct Fields, Column A & F?

May 18, 2010

Currently working on a project to automate the input based on the Summary file (xls format)

1. I want to be able to do the following: update, append, delete and populate the records to the various files based on two distinct fields, column A & F (see attached file).

2. Researched the process, requires knowing VB codes, are you familiar with this language? If so, how can I simplify the process? Please advise.

3. The files will reside on the SPP.

View 6 Replies View Related

VS 2010 Delete Top 1 - Delete A Number Of Records In A Table From The Last And Forward?

Mar 16, 2011

I'm trying to delete a number of records in a table from the last and forward. My idea is to use sql like this: delete top " & variable & " * from table where ID = something It gives me a general sytax error. Is it at all possible? Fuga. Edit: I also have the order by statement there. I just forgot to put it in the question.

View 5 Replies View Related

Update Records In A Dataset With Records In A Transaction File?

Dec 29, 2011

How do I update records in a dataset with records in a transaction file?

View 3 Replies View Related

Update Several Records Using UPDATE Command At One Time?

Jan 27, 2010

We know:"UPDATE tt SET Points=" & iPoints & " WHERE Ref='" & sRef & "'"Can we update several records using UPDATE command at one time?

View 4 Replies View Related

Cannot Delete The Records?

Jun 14, 2012

The following code deletes the records from the table on run time but not actually from the MS Access database. I have deleted all the records and when I restart the application, all records are exist.

How to solve the problem?

[Code]...

View 3 Replies View Related

Cannot Delete Any Records From DataGridView

May 14, 2012

imports System.Data.SqlClient
Public Class Form3 Inherits System.Windows.Forms.Form
Dim myConnection As SqlConnection
Dim myCommand As SqlCommand
Dim ra as Integer
[Code] .....

Attached File(s)
deleting.txt (793bytes)
Number of downloads: 9

View 3 Replies View Related

Delete All Records From A BindingSource?

Nov 30, 2010

Is it possible to delete all records from a bindingsource without using a loop? My binding source is a dataset table

View 3 Replies View Related

Delete More Than One Records To Get Rows Ids From Dgv?

Aug 22, 2011

I use this code to get row id from dgv to delete that row after that

Me.
TextBox1.Text = DataGridView1.Rows(e.RowIndex).Cells("id").Value

Now how can I amend this code to use it to get sevral rows ids in case that I want to delete more than one row ?

View 6 Replies View Related

Delete Records From Datagrid?

Jun 21, 2010

how to delete a record from datagrid, i tried the following code but it gave me an error in deleting records, I am using Mysql Database.

Following is the code:

Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
'recorddelete()
Dim sql As String
Dim db As New DBHelper

[code]....

I think problem is in this line, may be syntax problem:

sql = "delete from budget_details where ID = & DataGridView1.CurrentRow.Cells(0).Value.ToString()& "

View 15 Replies View Related

How To Delete All Records In Table

Mar 6, 2009

I try to delete all record in a table (.mdb msaccess) and I have the next code:
Me.Validate()
Me.Db1DataSet.Tables("tabl").Clear()
Me.TablAdapter.Update(Me.Db1DataSet.Tables("tabl"))
Me.Db1DataSet.AcceptChanges()...
But this don't change my table...

View 5 Replies View Related

VS 2008 Delete Records Re-appear

Aug 8, 2011

I am using the code below to delete reocrds , but when i restart the program they reappear.How do i commit the deleted records.[code]

View 3 Replies View Related

.net - Unable To Delete Records In DataGridView?

Apr 23, 2012

When I modify and delete data in a DataGridView, I get the error:

The record cannot be deleted or changed because table 'Table Name' includes related records.

but I can add new data, only cannot modify and delete data.

View 1 Replies View Related

Add, Edit And Delete Records In Access Using .net?

Jun 21, 2010

add edit and delete records in access using vb.net.i got textbox 1 to5 and three buttons which named addnew ,edit, delete.my database is in name records.mdb i want user to enter the information and click addnew button and the system save the records and so on with edit and delete.

View 3 Replies View Related

Cannot Delete New Records In Access Database

Feb 17, 2008

I'm creating an application that adds and deletes records from a microsoft access database. The language I'm using is VB2008. I am importing the database through a wizard. I can add records and delete records, but I cannot delete a newly added record without closing the form first. When i reopen the form, I can delete the record. Here is how I have my database setup:

'Bind user info to the controls.
AUSERDataSet = New BulldogUsersDataSet
AUSERTableAdapter = New BulldogUsersDataSetTableAdapters.UsersTableAdapter
AUSERTableAdapter.Fill(AUSERDataSet.Users)
' Setup the binding source.
AUSERBindingSource = New BindingSource

View 5 Replies View Related

Database - Delete Records From Ms Access?

Dec 21, 2009

how to do it, but the tutorial is not applicable on the program that I wish to do. The tutorial tells you to add 4 navigation buttons so that you can navigate the database(first, last, back, and forward). Then an update and delete button. But if this is what I will do, it would take 10 years to navigate the database and update a record. Now, what I want to do is just for the user to input a unique ID and click search button(which I have already done). Then the update would be easier. How can I update or delete a record using this method?

View 1 Replies View Related

Delete Duplicate Records From Combobox?

Apr 28, 2010

I currently have a sql database linked to vb.net and I'm populating the comboboxes using SELECT statements. However, I'm getting duplicate records in the comboboxes.I have my database setup as 1 project to many submittals and 1 submittal to many items.

I have 3 projects in my sample dataset and I'll recieve 3 duplicate submittals and 3 duplicate items.

If I have 6 projects in my sample dataset than I'll get 6 duplicate submittals and 6 duplicate items.

I've tried adding distinct to my SQL statement, but that didn't do anything. Is there any reason why its showing as many duplicates as I have projects?

View 8 Replies View Related

Delete Records From Related Tables

Jun 6, 2011

i have 3 tables in ms access that is patient , NOK,and admission they have related fields, i am using vb 2005. when i delete a record from the patient table i want the related records from the other tables to be deleted.

View 1 Replies View Related

Delete Records From The Database If They Are At-least 3 Years Old?

Dec 19, 2011

I have a project that I am working on that requires me to delete records from the database if they are atleast 3 years old.I have something like this in DB2 SQL to get the date:

SELECT * FROM tableA
WHERE ADD_DATE < CHAR(CURRENT DATE-3 YEARS)

ADD_DATE is stored as Characters in my system, this is why I am converting I know it is also possible to get the date and format it in VB.net which is the language I am using to call the SQL statements.My question is whether it would be faster/better to get the date and perform the conversion inside the SELECT in SQL or would it be better to get the current date and convert it in VB.net and then use that date in the SQL statement. I'm thinking VB.net would be better because there are thousands of records that must be compared. I should be able to set it up in VB so that it only retrieves the date and converts it once but I am not sure what kind of performance hit each takes from these statements.

View 2 Replies View Related

Executenonquery Delete Null Records?

Jul 26, 2010

I have a database which contains 60K null or blank records.  These records contain several fields, all blank or null.  I am using the following code, which I know works if there is text in the field, but if it is null or blank, I get negative results.

Dim
rv As
Integer

[code]....

how to check for null in an executenon query command? 

View 15 Replies View Related

How To Delete Records In Access Database

Mar 17, 2009

how can I delete a records in access dataabse except for sql query my code is this I would like to know if this code is wrong or not

Private Sub BindingNavigatorDeleteItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BindingNavigatorDeleteItem.Click

[Code]...

View 4 Replies View Related

Delete Duplicate Records In Table Using Recordset

Mar 19, 2011

I am trying to delete duplicate records present in my database table using record set the code that i have tried is below [code]it is not showing any error . Then i tried to debug and the flow goes from While rec1.EOF = False directly to con.close.

View 2 Replies View Related

Edit,delete Records In Database Using Datagridveiw In .net?

Jun 6, 2011

how to use datagridview and why and when we use adaptor and data reader

View 1 Replies View Related

Insert/Delete Records In A MSSQL Database?

Mar 8, 2012

I am trying to Insert/Delete records in a MSSQL database based on if a checkbox is checked or unchecked. The checkbox is an item template in a datagrid, I can check/uncheck the checkbox but it doesn't do an insert or delete. Here is my code:

[Code].....

But then I get the error that the control chkmap has not been declared. I am confused as to how this needs to be declared, do I set a variable to the FindControl("chkmap") and then set it as variable.checked = true ?

View 7 Replies View Related

Unable To Delete Records From MS Access - OleDbConnection?

Feb 6, 2010

In my application, I open a "Customer Details" form and on confirming I have to delete all records from other 2 tables (Order & OrderDetails) of the database. I am not able to delete records. It somehow stops by on -  ordDetAdap.Update(ordDetDs) . The code is as follows :

[Code]...

There may be N number of Orders and each order may have N number of OrderRedetails. There are rows and also shows proper data in MsgBox, also row.Delete works fine, BUT why does it stop at Update(OrdDetDs) I can't make out. Any idea where am I going wrong.

Also Is their any easy way out to delete all records using just a single statement providing OrderId from OrderDetails table ? As of there are 10 rows of a single order, then For loop will iterate 10 times and delete 10 rows, instead if I can delete all 10 rows at once would be beneficial.

View 10 Replies View Related

Unable To Delete Records In VB2010 Express And Sql?

May 15, 2011

I have a program which I am converting from VB6 to VB2010 this is also my first venture into sql. I have read many of the examples to try to get to grips with deleting records including those in this forum by imcilhinney

My problem is that I want to delete all but one of the records when the user presses a button, everything goes well until the 'ExecuteNonQuery' is reached.

[Code]...

View 4 Replies View Related

Delete Duplicate Records Based On 3 Identical Columns?

Aug 3, 2011

I need to duplicate records with duplicate records, but only if the first three columns out of 5 columns are duplicates. I am using MS ACCESS with VB.NET. How do I loop through the records and delete records with three duplicate columns

View 1 Replies View Related

Insert Delete Duplicate Records Through Button Code?

May 3, 2012

How to make only one record at a time get inserted in the database table and also delete from the other table?

Once the details are filled ,I insert it in table1 as the new record and I delete the same record from table2.[code]...

View 1 Replies View Related

Search Delete Undo Records In Sql Server 2008?

Mar 11, 2010

how can i search,delete,undo edit record in vb.net using sql server2008 as database

View 1 Replies View Related

Insert / Delete / Edit / Search Records And Connection With Database

May 12, 2010

how can i access the sql server express database table in vb.net on forms to insert records,delete records,search records,edit records.I have made table by using visual studio.

View 5 Replies View Related

Save, Edit, And Delete Records In An Access Database Through Vb2008?

Mar 13, 2011

I need to be able to save, edit, and delete records in an access database through vb2008. Editing and deleting records works perfect, but I cannot save new records. Can anyone assist?

Here is my code

Imports System.Data.OleDb
Public Class Main_Form
Dim con As OleDbConnection
Dim cmd As OleDbCommand

[code].....

View 8 Replies View Related

ADVERTISEMENT