What is wrong with this code. It does not update the access database and no error.
Dim conn As New OleDbConnection
Dim sqlQRY As String = "SELECT * FROM StdMaster WHERE StuNo = " & txtStudentNo.Text & " ORDER BY StuNo"
[CODE]...
update statement, i am trying to update a row within a access 2007 database here is my code.
[Code]...
I have an issue with a data base updating it won't update for me in debgging mode it is stopping here on this bit of code which is highlighted in red. the error which comes up is .(update requires a valid update command when passed datarow collection with modified rows.)
Public Sub UpdateDataSource(ByVal ChangedRows As database.dataset1)
Try
'The data source only needs to be updated if there are changes pending.
If (Not (ChangedRows) Is Nothing) Then
[CODE]...
I am completly flummoxed!!! I have writen code for updating my table from a form but when I use the same code only changing the table names it wont work I get the following message: "Update requires a valid Update Command when passed DataRow collection with modified rows" My codes are as follows:
[Code]...
I am building a project in Visual Studio 2008 using VB. I have a Access Database and i have made all connections success and Viewing data in Grid Control Successfully.i am editing SQL Server Database Successfully using Same pattern and Code.when i use Access Database using Same code and Dataset there is no change apply to the Access Databasebut when i change or add new record to a Databa Table i have no error but when i check the Database there is no change has been updated or no New record added to the database.
View 2 Repliesmy save button not work
Private Sub btn_save_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_save.Click
[code].....
when the program is already save the data and when the process is on updating the dataset it give me error say's"Update requires a valid UpdateCommand when passed DataRow collection with modified rows."The error occur at the line in bold letter in the codes below..
Dim classgroup As String
classgroup = ""
If Me.ClassComboBox.Text = "Key Project" Then
[code].....
I have a basic Table and I can add and save data, but when I try to delete, I het this error:
[Code]....
I have finally been dragged kicking and screaming into the 21st Century and I'm learning VB.NET
[Code]....
I get a "Syntax error in INSERT INTO statement" on the da.update line. The bulk of the code is copied from a working section of the program, I have just added the "newrow" stuff. I am pretty confident I have the names of all the fields correct.
I am looping through a dataset. I want to update a field in each datarow.
How can I edit a row in a dataset? I tried this but it didn't work:
For each datarow as datarow in dataset.datatable.rows[code]...
I am trying to use VB.net to update a datarow (record) using a tableadapter but it won't update.
I created a tableadapter based on the following query which will add a new row, but can't find the way to update the row already in the database.
SELECT Player_ID, FirstName, LastName, Gender, Notes
FROM tblPlayerInfo
WHERE (Player_ID = @Selected_Player_ID)
[Code]....
I have an OleDBDataAdapter which I am using to communicating with an Access database. I have generated a SELECT command with parameters, and used this to generate a DataSet.I have then used the OleDbCommandBuilder to generate the UPDATE and INSERT commands. I can use this successfully to fetch data and then update it.
Next I have created a I have a DataRow using DataSet.Tables.NewRow which I have populated.I have then used my DataAdapter to insert this record.This works just find. I would like to now update this DataRow.Can I refresh this DataRow so that it populates the fields such as the autonumber field and the automatically populated timestamp? I could select it again but I don't know the autonumber. Is there not some way that I can get the existing DataRow to synchronise with the new row?
Using VS2005, VB.Net, Dot Net 2.0, SQL Server 2000. If have some Columns (varchar and numbers) in a DataRow that I want to set to DBNull in the database. The fields as defined as Nullable in SQL DB table.
I have some fields that are populated when loaded but I want to update to be null using the ADO.Net data objects. If I try and use Row("FieldName") = DBNull.Value a 0 gets written to number fields (not sure what gets written to varchar fields.) What code should be used to update fields to Null using ADO.Net dataobjects?
[Code]...
I've been looking around online, and havent quite found what im looking for.I have an unbound DataGridView on my form that has 1 columns ID and NAME, i did a loop to fill in all the ID columns. Then when i loop trough all the ID's, i want to update the NAME column with some data.
View 3 RepliesI am using vb.net with access database. I am using sql. How can i update database with the value 40'6"(Feet and inches values)
View 5 RepliesI'm having problems with the updating of my datagridview. I can update to the MS Access database. The problem is I cannot update to my datagridview!-[code]
View 12 RepliesI am trying to update a field in a MS Access database and it appears to be working but it keeps coming up with an error on the last line "executeNonQuery", I think it has something to do with data type but not sure.
Using conProduct
cmd1 = New OleDbCommand("UPDATE tblSODetails SET StartTime = " & soStartTime & " WHERE SO = " & CurSO & "", conProduct)
[Code]....
I have created a datagrid and populated it with data from a database. When the data is changed, I try to update the database and I get an error without any description of what the error is.to fill the grid:
dsjobs.Clear()
With dbAdaptr
'populate jobs table
Dim SQLStr As String = "Select * from jobs"
[code].....
How can I do that? I already have the code I'm working on but it seems that it doesn't work really fine. I input an id number(unique) on a text box and click the search button. The entries that corresponds to the id number is then displayed on the other text boxes. And then I try to edit one of the entries manually(changing its letters or name) then I click the update button.
Here is now the problem: It really updates the entry but it makes a mirror of the entry with a different id number(maybe automatically generated). So basically the ms access database will now contain the old entry and the updated version of the entry.
Well here I am again, could really use some expert eyes on this. I've got an update statement for access 2007 and when I run it it's giving me a "No value given for one or more required parameters." error. I've spent at least 2 hours on this now and searched all over the place and none of the suggestions I found are fixing it. I've got an insert statement to the same table that works fine, I took this same syntax for the update statement from another project where it was working perfectly. I've verified the spelling of the table and column names, As best as I can tell there are no reserved keywords being used and I've eliminated any spacing from the names. I've even tried updating a single row with no variables, just like for like data directly from the table and it still throws the error.
Code:
Dim DAEdit As New OleDbDataAdapter
Dim update As New OleDbCommand("UPDATE ActiveContracts " & _
[code].....
the problem is that the migrating tool im using tries to import the foreign keys... but it cant because the name for the relationships generated by Access is too long...So im trying to rename the MSysRelationships .. where the relationships name are....here the code
Dim connection As New Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & DataSource & ";Jet OLEDB:Database Password=" & Password)
Dim c As New OleDb.OleDbCommand("Select * From MSysRelationships", connection)
[code].....
This program is very difficult for me, but I must get threw it or I cannot finish... What I am doing is making a Database of foreign Languages with the spelling of the words and the pronounciation inside the database... The USER enters a paragraph of words into the translator textbox and pushed translate. The program has a DATABANK of words with the phonetic spellings and matches the word, then translates to phonetics. The problem is that new words keep appearing inside the language. So I incorporated a Database of 2 fields
[Code]...
I created a dataset and i am using OleDbDataAdapter to insert new values to access database. But when i close the program and after open it, values are not in the database. How can i solve this problem? Also, i have another problem. When i write codes that
[Code]...
Code to insert and update the record. I read the record sucessfully but without exception applied. I want also use the try catch statement for catch exception if generate. I want to know only sql query with in the try catch or datset connection adapter all in the try catch.
View 3 RepliesI am trying to update a Database via a form. In the update button I Have the below code
HTML
Dim bm As BindingManagerBase = frmFindCustomer.DataGridView1.BindingContext( _
frmFindCustomer.DataGridView1.DataSource, frmFindCustomer.DataGridView1.DataMember)
dr = CType(bm.Current, DataRowView).Row
'This gets a reference to the row currently being edited
'dr.BeginEdit()
[Code] .....
I do not get any error messages but the database is not getting updated.
I am an experienced VB6 programmer trying to adapt to the vb.net mindset. I am using Visual Basic 8 and I am using Microsoft Access 2003 as my database. I have spent the past 6 hours trying to do something as simple as updating my database for the following event. Everything I find on the net is either using SQL server or bound controls (which I don't think can work here).
I have a login page (gets the data from the database)( which then opens my main form. This works fine. I then have a menu item that allows the user to change his password. After doing all the appropriate validity checks, the program is supposed to save the new password back to the database. This does not work. I have a textbox where the user enters the new password. How do I set up (in code) the appropriate objects to then save the data. The pertinent code is below. I have left off the connection string (cn) as I know it works.
[Code]...
I have a form in vb8 that is set up as follows:
I have a table in my Access database calledUsers that has a name and a password (encrypted).
Using the toolbar I created aBindingSource with a name of UsersBindingSource and a dataSource ofUsers
Using the toolbar I created aDataset called with a Name and a DatasetName called Users_Dataset
Using the toolbar I created atableAdapter called UsersTableAdapter
I added two textboxes on the form and changed theirDatabindings...Text property to the corresponding field in the Database.
How to now update the database when I click Update. What the program needs to do first is encrypt the Password before saving it. I wrote the code in the TextBox2.Lostfocus event to encrypt the data a place it back into the TestBox2 field. The only samples I find on the net refer to DataGridView controls (which work) but I don't want to use them. How can I get the database to accept these changes as well as changes to radio buttons or comboboxes?
I'm trying to update an MS Access database, but that doesn't seem to work. I do NOT get an error, but nothing changes in the database.
Code:
Dim myCommand As OleDbCommand = Nothing
Dim strUpdate As String
strUpdate = "Update Settings Set Data = @Data Where Name = @Name"
[Code].....
the same txt file will be updated from time to time and it will be imported agian to the database.what is the code that will add the new data ?
Private Sub sendtoaccess_Click(sender As System.Object, e As System.EventArgs) Handles sendtoaccess.Click
Using Conn As New OleDb.OleDbConnection _
[code].....
i have access database. its data is laoded to datagridview in vb.net langauge. i want to edit some data in the datagridview and this edit should be save in the database too when i press button edit. i used this code but it is edit for only one time and if i do any action before it it will not work.
Dim ConnString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:UsersHaidarDesktopcustomer listNewFarahnetFarahnetCustomers.mdb"
Dim SQLString As String = "SELECT * FROM customers ORDER BY Fname ASC"
private da As OleDbDataAdapter
[Code]...