Quering Record - Check A Record In Database Before Inserting A New Record

Aug 9, 2010

I am trying to check a record in database before inerting a new record here is my code but problem is when i enter a names first alphabet it imediatly populate massage. i want to check it after entering whole name

Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Try
Dim cnString As String = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" &

[CODE]...

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Check If Record Exists On Database When Inserting?

May 17, 2011

the next code is working but when I try to insert an existing record, it gives me an error and I want to add a msgbox to let people now that the username is already taken.Only the username cannot repeat on the database because it's the primary key.. the rest of the table rows can repeat.

Dim cn As New OleDbConnection
cn.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\Fabio\Desktop\Telemoveis\Telemoveis\Db_Tel.accdb"

[code].....

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Inserting New Record Overwrites Existing Record?

Jul 14, 2010

I am inserting new record in ms access database by using VB.NET but when i insert new record it replaces the existing fisrt record the code i am using as follows

Coding:

Dim cnString As String
cnString = ("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\PaymentSystem\PaymentSystem\bin\Debug\Payment.mdb;")

[Code].....

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Retrieve The Record And Display The Record In A Listbox Displaying The Time Field As The Text For That Record?

Apr 18, 2009

I hav a web service which pull records from a database and I am hosting these services in IIS which works fine but I am trying to retrieve the record and display the record in a listbox displaying the time field as the text for that record.I have created the following function

public sub get_data()
dim dt as new data.dataTable
dim service as ws webservice.webservice

[code]...

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Database Control Binding - Create A Record Add Information To It And Click On Next Record

Nov 15, 2009

I have a problem with my program, and it's really bad because I need to burn it to disk within 12 hours and I can't get it to work: If I create a record, add information to it and click on Next Record, the ID, Status and Notes boxes content will change but the rest of the controls contents are carried over to the next record and I don't know why or how. It was working perfectly but now it stopped and I never done anything.

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Display A Record From Database And Also The Picture For That Record In A .rdlc Report?

May 23, 2010

I have records in a database. Each record has a Picture path in it eg. "C:\Pics\Image1.jpg". I would like to display a record from my database and also the picture for that record, in a .rdlc report in vb .net 2008. i have succeded in displaying the record but just can't get the picture to show. I am using an Imagebox in the report.

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Access Database Query : Get The Old Record To Be Added To The New Record?

Apr 15, 2012

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?

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View The Next Record And Previous Record In The Database?

Sep 21, 2011

how to view the next record and previous record in the database.? just like in the picture below.? what condition should we use.?

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Inserting A Duplicate Record In A (Access) Database?

Sep 24, 2009

For some reason my code is executing the INSERT query twice and putting duplicate records in my table. If I put a primary key on one of the fields I get a runtime error and it complains about the fact it can't add the record twice.The part of the code that INSERTs is near the bottom, bolded and italicized. I put the entire IF statement of code incase my logic is wrong.This is what's being executed when a user clicks a button

If listOfCompanies.Contains(cbx_Company.Text) Then
'If the list contains the company, UPDATE the record
If LaborChecked Then

[code].....

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Validating Duplicate Record Of SQL Database Before Inserting & Upd?

Dec 2, 2011

how to validate the Duplicate record before Inserting and Updating Command is Trigered from VB.Net Form. I am new to VB.

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Force Users To Save Current Record (If Current Record Has Changed) Before Going To Next Record

May 17, 2010

How do I force users to save the current record (if current record has changed) and not let user go to the next record unless the save button is pressed?

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VS 2008 Inserting A Duplicate Record In A (Access) Database?

Sep 24, 2009

For some reason my code is executing the INSERT query twice and putting duplicate records in my table. If I put a primary key on one of the fields I get a runtime error and it complains about the fact it can't add the record twice.

The part of the code that INSERTs is near the bottom, bolded and italicized. I put the entire IF statement of code incase my logic is wrong.

This is what's being executed when a user clicks a button

If listOfCompanies.Contains(cbx_Company.Text) Then
'If the list contains the company, UPDATE the record
If LaborChecked Then

[Code].....

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VS 2008 Manipulate In Retrieving,inserting And Updating Record On Just Only How Call On The Database?

Nov 10, 2011

i need some function like adodb.recordset on vb6.0 on vb.net but seem i cant manipulate it like recordset because i want to manipulate in retrieving,inserting and updating my record on just only how call on the database im using mysql database..

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Check A Record In Database?

Jun 21, 2010

I am trying to check a record in database before inerting a new record here is my code but problem is when i enter a names first alphabet it imediatly populate massage i want to check it after entering whole name

Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Try

[Code].....

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Check If Record Is Available In Database?

Feb 18, 2010

I have this code that Deletes a record by its IP address inputted by the user. How do you check if that record is available? how do evaluate first that the IP address inputted is not in the database before deleting anything? in vb 6.0 I used to do this line[code]...

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Check If Record Is Available In The Database?

Feb 18, 2010

I have this code that Deletes a record by its IP address inputted by the user. How do you check if that record is available? how do evaluate first that the IP address inputted is not in the database before deleting anything? in vb 6.0 I used to do this line:

If rs.EOF And rs.BOF Then

but it doesn't work anymore in vb 2008

If TextBox1.Text = "" Then
MsgBox("Input IP Address", MsgBoxStyle.OkOnly, Title:="")
Else

[Code].....

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DB/Reporting :: Check If Record Is Available In The Database?

Apr 28, 2012

I have this code that Deletes a record by its IP address inputted by the user. How do you check if that record is available? how do evaluate first that the IP address inputted is not in the database before deleting anything? in vb 6.0 I used to do this line:If rs.EOF And rs.BF Thenbut it doesn't work anymore in vb 2008

Code:
If TextBox1.Text = "" Then
MsgBox("Input IP Address", MsgBoxStyle.OkOnly, Title:="")

[code]......

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Foreign Key Constraint Error / Parent Record Does Exist But Won't Let Child Record Be Created

Feb 21, 2010

While I've previously many years of relational databases and procedural languages, I'm stumbling with Visual Basic. In this problem, the simple situation is that I have two files, parent and child. The primary key of the parent file (Area file) is linked by a relation to one of the two fields that makes up the primary key in the child file (Project file) (unique key is formed from 'area' and 'project'). I have the default table adapters created on both files. I have created two maintenance forms showing one each of the two files in datagrid view format.I can create some records in the Parent (Area) file, but when I try to create a record in the child (Project) file, using one of the valid key values from the Area file, I get the 'ForeignKeyConstraint [relation name] requires the child key values [actual value] to exist in the parent table' which I'm absolutely definitely sure it does.

I haven't done any actual coding for those two maintenance forms, just dragged-and-dropped the files from the data sources screen onto separate forms so it creates the controls itself. But I can't work out, if it already knows the data does exist because I can load it back in to the Area maintence form, why it can't check itself to find out the record does exist. Why does it think the record from the parent record doesn't exist? It does exactly the same thing, whether or not the database is in access or SQL Server Express. I have all the latest updates.

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Adding Association (link Table Record) Without Creating A New Related Record?

Jul 31, 2011

I have two tables Products and Categories with a many to many relationship. I am trying to copy the categories linked to one product (OriginalProduct) to another product (newProduct). The problem is when I execute the SaveChanges() method, I not only get the records in my linking table, but it also creates another copy of the categories in the categories table. I've tried this in many ways but here are the last couple that I've attempted:

' Copy Product/Categories
For Each oneProdCategory In OriginalProduct.Categories
Dim relatedCategory = _productContext.GetObjectByKey(New EntityKey ("ProductInfoEntities.Categories", "RecordId", oneProdCategory.RecordId))

[code]....

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Handle My Record Update, And Move To The Record Number The User Entered?

Oct 27, 2009

I am handling many of the BindingNavigator tasks (MoveFirst, MoveNext, etc.)in code to ensure that I always ask the User to save his changes.

The one area I am have a problem is PositionItem. I would like to sense that the User has changed the Record Number in the BindingNavigatorPositionItem, handle my record Update, and move to the Record Number the User entered I have looked all over and have not found any way to do this.

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VS 2005 Created A Project That Has Add New Record / Edit Record And A Search Form

Apr 1, 2009

I have created a project that has an add a new record, edit record and a search form, that has multiple text, combo boxes and is working great.Last nite I have added a checkbox under my add new record form and i am saving the checkbox value to my database, so far so good. I would like to be able to search any record that is mark with a checkbox to show up in my search screen when I do a search: [code] The problem that i am having is that now that I have added the code to my project to search for the checkbox field in the search screen and if I leave everything blank and click on the the search button I get no record found. I expected to see all that data, since I have nothing selected. Now if I click my checkbox, as soon as I click on my search button I see that two records that I have added for my test.

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Display Record From Table To Gridview On Page Load And Also Search Record For Particular Fields Using Textbox.

Jan 23, 2011

My database : table1

ID FIRSTNAME AGE
1 Sumit 22
2 Sanjeev 23

i have gridview 1 and textbox1 and button1 i want when pages load the gridview displays the all records from table1 and also ...i i wanna search record for firstname by typing sumit in textbox1 and click on button1 then in gridview the record of sumit will be shown ..by default gridview display alll records from table1 How to do this My Selct Query is below : but it doesnot display all record ...but it can display record if you search for a particular record .

[Code]...

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Check On A Database If A Password Is Correct For A Certain Record

Jun 25, 2009

Was wondering how to make it so users can log into the program and this would be much easier since the program allready connects to a database to add a username and password table which i have,how can i get it so when i click a button the program will check with the username specified if its in the data base and check the password of the given username returning a yes value if its right and conuing or exiting if its wrong?

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Check When Record Exist In Database Sql Server?

Nov 24, 2011

I need to check if a record exist in my sql server [code]...

I need to check if in "Br" exist a record for example "123098"

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Check Whether The Record Already Existed In Ms-access Database?

Feb 6, 2012

when a save button clicked, the username textbox is added to the database otherwise if the username already existed then a message appeared to tell user it is already taken.. sample code

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VS 2008 - Loop To Check Record In Database

Nov 27, 2009

I need to be able to have a loop which checks records in the database and if it matches up then do something. I need to check that zone = currentZone and if it does then to submit my update query.

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Save Data In Table First Delete Record Then Insert Record

Dec 3, 2011

I use This Code To Save Data in Table First I delete record Then Insert record

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Strategy To Send Email And When Replied Record To The Proper Record?

Aug 9, 2011

I am trying to write a system that will send an email to my Client and when my client reply I need to read the Email and push it back to proper Record for the Client.We are using Exchange and outlook, For Sending email I am using smtp with custom coding Which automatically record an email content to the Client File howerver how to read the reply as it is coming into outlook of user machine and push it back to the Proper Client record.

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Text File Array - Read The Next Record - Cut Record Out Of The Program

May 5, 2010

Im wondering how would i work with a text file. which would allow me to Read the next Record, Cut record out of the program.

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Cannot Add Or Change A Record Because A Related Record Is Required In Table?

May 11, 2011

I'm receiving the following error:"You cannot add or change a record because a related record is required in table 'FORN_NIB'."

I cannot understand this error fr the related record really existe on the FORN_NIB table. It is even picked up from there. Here's the code where the error occurs at the .Update instruction:

HTML With rst
.Open("DADOS_RECIBOS", conn, ADODB.CursorTypeEnum.adOpenDynamic, ADODB.LockTypeEnum.adLockOptimistic)
.AddNew()
.Fields("NUM_FORN").Value = Me.TextBox1.Text

[Code]...

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