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???
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?
how to delete the current record datagridview using adodb in vb.net...this is my code:
Private Sub cmdDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdDelete.Click adrCURR.Delete(ADODB.AffectEnum.adAffectCurrent)
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)
I am trying to write out to console a percentage of data loading. I tried to use C# syntax which would be Console.Write(" Percentage: " + nCurrent + "/" + nTotal; however in VB I get the actual character 'r' being displayed in my string. Is there a special code I need to insert in order to update my cursor to the beginning of the line so that I may reuse that line?
I am creating a database application via visual studio, using VB.NET and with an access database. I've connected them and have been using them fine so far however I've had to make some changes to the original access database. I am unable to find an obvious way to update the current dataset object within the project from the new updated source file. My database has this new schema but the dataset has the old one so its causing conflicts. The only way I've found to do this in the past is to manually update the dataset with the changes I've made in the access file, so actually doing the same thing twice! Surely this isn't the only way? The changes I've recently made are massive so will take sometime to have to do it all again. If I delete the current datasource object and add it again, there are many errors left from the deletion. If I manually try to update the files, there's always some hidden ones I've missed. Ive found some sort of guide for updating the datasource via the dataset but what I want to do is the opposite!
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
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.Here is the
Dim strquery As String Dim cn As ADODB.Connection cn = New ADODB.Connection[code]...........
I use this code to move to the next record. but when I move last and then I click movenext I get the "No current record error" but in the code I specified "If Not dbs.EOF Then". How can adjust the code so that I dont get this error
If dbs.RecordCount > 0 Then If Not dbs.EOF Then dbs.MoveNext()
I'm a bit of a newbie and am trying to delete the current record on a form. next record, previous record is easy. i just write the following Me.CustomerBindingSource.MoveNext()
How come there is no "Delete" method available? such as:Me.CustomerBindingSource.Delete()
code available? I have my form binding to a database table called Customer and am wanting to write code for my own record navigator buttons.
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
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]
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]
I have used a data repeater, some of the data it repeats are URL's taken from the SQL DB. How can these link labels be made into links that will open the clicked URL in a browser?
I know i have to use the
System.Diagnostics.Process.Start("IExplore.exe",
url) command but i dont know how to get the URL from the current record.Is there an easy command to get a field from the current record?
I am returning to programming after a long absence (last real work done in VB5.0). I'm trying to do a small customer management project. I'm starting off with a DataGridView on one form showing a reduced number of fields. When the customer is selected a second form gives the full details. I struggling to find a clean way of passing the selected record to the second form. Both forms are using the same dataset.
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, '...', ' '), ''','''')
[code]....
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()
[code]....
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 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
I m workin on vb.net ado.net oledb, I have also added datagrid Control to my form
for retriving database from .Mdb file i used following code
Code: 'decleared Name Space Imports System.Data.OleDb
[Code]....
or when i click any record in datagrid, then the current record of dataset also should move to clicked record of datagrid, so that i also may see datagrid's clicked record in textboxes
in short i want to use default feature of vb6's ado control, when we bind datagrid with ado control, it worked autometically, both data grid and adodc wer connected each other at a time, so that moving next record also apears in datagrid.
I m working on vb.net ado.net oledb, I have also added datagrid Control to my form
for retriving database from .Mdb file i used following code 'decleared Name Space Imports System.Data.OleDb 'Dicleared Variabls in Class Form1
[code]....
how to move current record in datagrid, i mean when i press Next record button then datagrid's data (table) also should move to next record or when i click any record in datagrid, then the current record of dataset also should move to clicked record of datagrid, so that i also may see datagrid's clicked record in textboxes in short i want to use default feature of vb6's ado control, when we bind datagrid with ado control, it worked autometically, both data grid and adodc wer connected each other at a time, so that moving next record also apears in datagrid.
I have a ListBox populated with records and an insert button that activates an InputBox which prompts for the record name. What I would like is instead of an OK or Cancel button, I'd like a Insert Above, Insert Below, or Cancel button. My current workaround is using a second InputBox so after receiving the record name, this box asks to place it above or below. It would be much easier for the user having a single InputBox that takes the record number and having the three options, above, below or cancel.
I'm maintaining a Datagridview on my Windows Form. When I open the form all the contained records are displaying, which is from SQLserver Table ok. when I open the form the datagridview should show just black and after I insert a new record that particular record should only display on that form gridview. [Code]
