Updating The Record Ina Database?
Jul 21, 2009I am using vb.net console application. I want to update record in database without using primary key in a database.
View 1 RepliesI am using vb.net console application. I want to update record in database without using primary key in a database.
View 1 Repliesupdate on vb.net 2008!It's quite a simple code but when it comes to it tells me Syntax error in Update.The problem is where i highlited.
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I am basically trying to retreive a record from the database where CardNo is the text in txtCardNo.However it doesnt work it keeps seying datatable cannot be converted to dataset.row..[code]
View 9 RepliesI can't seem to save data in the database when updating a record. The record appears to be updated and even displays the new record on my form but as soon as I close and restart the program the old record is back and no changes are made to the database. Is there something im missing here ?
If CN2.State = ConnectionState.Open Then
Dim Comand As New SqlCeCommand("SELECT * From Incentives Where IncentiveCode = '" & TxtCode.Text & "'", CN2)
Dim rs As SqlCeResultSet
rs = Comand.ExecuteResultSet(ResultSetOptions.Sensitive + ResultSetOptions.Updatable)
If rs.Read Then
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On my form I have a datagridview which is bound to a 'Supplier' table in Access 2003. Once I click on a record on the DataGridView, textboxes below which are also bound to the same source are automatically populated with the relevant data. What I want is when I click update, that the records in the database are updated as well as the dataset but what happens is that the dataset is updated, I invoke the tableadapater.update method but no permanent changes are made to the database.
Below is the code attached to the 'Edit Supplier' command button.
Private Sub cmdEditSupplier_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdEditSupplier.Click
Me.SupplierTableAdapter.Update(QuoteDataSet.Supplier)
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below is my piece of code where I click on "Edit button" then retrieve the data from access database so that I edit them on a form.
This is what I get when I click on edit: InvalidCastException was unhandled and highlights the line below The UserID contain Alphanumeric characters.
'check for the selected item in list
If lvUsersList.SelectedItems.Count > 0 Then
If Me.lvUsersList.SelectedItems.Count > 0 Then
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I'm testing my program, which uses an access database, and it works just fine on:
Windows XP with .Net Framework 2.0 sp2
Windows XP with .Net Framework 3.0 sp2
Windows XP with .Net Framework 3.5 sp1
But in Windows 7 with .Net Framework 3.5.1 I'm getting an error in the ExecuteNonQuery() line when updating a record in the database.
The code I use is:
Dim con As OleDbConnection
Dim cmd As OleDbCommand
Dim cGebruiker, cWachtwoord As String
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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..
View 4 RepliesHaving problem in updating an existing record. An error occurs "Data Type Mismatch in Criteria Expression"
Private Sub ToolStripButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton1.Click
Dim myBuilder As OleDb.OleDbCommandBuilder = New OleDb.OleDbCommandBuilder(dataAdapter)
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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=" &
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Essentially this section assigns a randomly generated password to a user if they have forgotten theirs. The password is generated in some other code.
I have set up the SQL to search for the log-in details (in the case and email address which is unique), it then brings in the field and then updates it to the new password.
But for some reason I cannot get it to update the MS Access Table.
I Keep getting a SYNTAX Error message.
Private Sub bthresendpassword_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bthresendpassword.Click
If txtemailaddress.Text = "" Then
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I am having problems editting my record where i basically want to select a record from the datagrid view and change any details where the data is displayed in the text boxes i have put on my form and click edit and have the data updated on to the database as well as the dataset. As for my updating button the code seems ok but i check my database and it doesnt change. Here is my code where the edit and update button code are at the bottom:
Imports System.Data.OleDb
Public Class Stock_Control
Dim dbConnection As OleDbConnection
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i try to create a windows form that act something smilar to a cash machine i managed to enter a mount with my first button then my second button is for withdrawing money it checks the amount in the text amount if it is higher than the amount the small dat hold in the amount it will throw an error message if it is less or equal it write the amount in the text box my goal is to deduct that amount in the textbox amount from the amount already at the database.[code]
View 2 Repliesupdate record in my mdb this is my code but it updates only 2 fields yet I have five so update the rest
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when i use TOAD to update a table all works just fine when using this query:
Update CSR.CSR_EAI_SOURCE ces
Set (STATUS_CODE, COMPLETE_DATE, DATA) =
(SELECT 'ERROR', '', REPLACE(REPLACE(c.Data, '...', ' '), ''','''')
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It stays on the ra = OracleCommand.ExecuteNonQuery() continuously until i get the error The CLR has been unable to transition from COM context 0x3327fa8 to COM context 0x3328118 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.What could i do in order to get this working within VB.net since it works just fine in TOAD when running that same query?
I am using Visual Basic 2008 Express edition along with mysql manager 2008.I have made a bank database and am looking to add a feature to update the balances of customers (individually) when i withdrawl or add money.The code i am using currently is
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
Me.Validate()
Me.StudentBindingSource.EndEdit()
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This is the same function as the Save record but, i want to be able to enter a value into a text box and then click the button to update the balance.
I have problem trying to update a single column. I initially insert an null value,
Here is the insert code..
CODE:
I am trying to update a table based on row selected in a grid (C1TrueDBGrid1.Columns(1).Value), but I am getting the following error:
Update unable to find TableMapping['Table'] or Data Table 'Table'
Code:
Dim ConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=/DataDirectory/AOPT2002org.mdb;Persist Security Info=True;Jet OLEDB:Database Password=testaopupdate" Dim objConnection As New
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Visual basic 2010. I am having a problem with updating on a DataGridView that has me confused.
I have a DataGridView on the first tab page that is displaying data in a DataTable.
On the second tab I am updating the current record on the DataGridView.
The text fields on the second tab are bound to the DataTable in the following manner
rnameTxt.DataBindings.Add(New Binding("Text", TableData, "rname", True))
When I move to the second tab the correct data appears in the text fields.
When I modify a field on the second tab the modified data appears in the DataGridView, on the first tab page. But when I check for changes in the DataTable in the following manner
Dim ModifiedRows As DataTable = TableData.GetChanges() I do not see the modified row - i.e. ModifiedRows = Nothing? Why is the modification not being identified???
OK - I have worded this search 40 different ways and I seem to be lost here. Every example I find seems so happy that you can easily drag and drop a datagrid and let the user fill it in -- then they stop! I know how to do everything I am asking through LINQ. That obviously won't translate here. I really should have learned ADO.NET first, then LINQ, but NOoooo... I need to know how to do the following in .NETCF (Windows Mobile 5) using a SQL CE database on the device.
Add a new record and populate some or all of the fields with data I supply. I don't need to add a record to a datagrid - sometimes the user will not even see the record. How do I add a new record -- put data into it and save it? For example: Create a new delivery record, say, and have the program store the date in one field and a number in another field. Search for a record, then update data in it. Again, using LINQ I can do this easily -- I cannot for the life of me find any examples of doing it without it.
I can find lots of examples of populating a grid of databound fields, letting the user make changes then saving it out. I don't need to do that. Say I need to search for the one record that meets a criteria (customerID=10 and orderID=1234), then when (if) that record is found, update a field in it.
This is the form I'm having problems with. As you can see I've created a tab interface which is working. There are five text boxes on it which are binded to the Staff table in the database. When the tab is changed, the binding is changed to a new field. However, unfortunately, when a new record is selected, the data bindings do not update, and instead, the first record is always being used. We suspect the problem may be coming from the fact that there is code to unbind from the text box and rebind it again. This is the code I'm talking about...
Private Sub TabCheck()
If TabState = 1 Then
pnlTabs.BackgroundImage = My.Resources.tabs1
txtBox1.Visible = True
txtBox2.Visible = True
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I have a code made in Visual.net 2005, and I have a problem. I have an excel file where I store records. I can read this records without problem, but when I want to make a modification I get the ERROR :
"Current Recordset does not support updating. This may be a limitation of the provider, or of the selected locktype"I hope you can help me, I know that by default the file is open as readonly, but I dont know where do I have to specify the opposite.
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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.
View 8 RepliesI 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.
View 2 RepliesScenario: VB2010 express + Sql Server 2008 express.
I have a master/detail form where I can modify a record. With VB 2010, I use the new Table Adapter Manager which handles all Updates/Deletes against the database inside a Transaction. Question is that before I update the modified record (only the master one), I need to insert it in another table (history table). My question is how I make both insert and update inside the same Transaction. By code? Using Stored Procedure?
I am trying to update an Oracle Database record and i keep getting this error:
ORA-01704: string literal too long 5
I looked up that error and it seems that i have a limit of 4000 charters since i am using Oracle 10g. However, the prgblem is that its the same exact data i am putting back into that record so that is why i am unsure as to why its giving me that error for the same amount of data i took out of it.
Here is my update code:
Dim myCommand As New OracleCommand()
Dim ra As Integer
Try
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This VB.NET rookie is asking for the support of those with expertise. BACKGROUND: Form1 has a Datagrid, Dataset1 create by drag DB into datagrid. Form2 presents the record selected from the datagrid. Within the LOAD_FORM I search the DB with the Key and place data in Dataset2 (DS created manually)
CHALELNGE Record updated in Form2 is saved in DB fine and when Form2 is closed, record updated does not appear in Form1. I�ve tried the following but no sucess In form1 event Ive got the code to load data into the DS Me.TUSERSTableAdapter.Fill(Me.PTDataSet.TUSERS) FINALLY: What should I do to see the datagrid updated?
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 have created simple database project, using vb.net, ado.net, oledb, datatable, datagridview.My program is working nice, Here i m facing Problem with Update Record, when I update Record it only update table in Memory not in Real Database. or some times it shows error message.this is my code for Update button i m facing problem with Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click
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there is a tab control system. It relies on only five text boxes, and their bindings change when the tab is changed The relevant information is displayed. However, if I navigate to a different record...You can see that the same information is displayed in the tab control text boxes, and not the employee's details I just selected in the data grid or the navigation. How can I fix this? I'm not sure what's gone wrong here. Here's the code that changes the text boxes upon changing tab...
Private Sub TabCheck()
If TabState = 1 Then
pnlTabs.BackgroundImage = My.Resources.tabs1
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