Updating A Database Record Using A DataGridView And Dataset?
Mar 11, 2010
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)
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???
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 a datagrid that I use to display data from a SQL 2000 table. I am trying to write back any changes the user makes to the datagrid data back to the original table but don't know the proper method to do this.
I have an Access Database in which I am trying to add a row through a dataset. I am able to add the record to the dataset but I can't write it to the live database.
Dim connectionString As String = _ "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:extraTEST.accdb;Persist Security Info=False;"
I 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
On a form i have several text boxes binded to a bindingsource and including a datagridviewI have populated the textboxes with database fields successfully and the datagridview displays the correct information.I have the following code to save the information to the database but i cannot get it to work. [code] I have tried many code examples here in order to save the data, none of which has worked.Can anyone please help me with this?
I am having a problem updating an access database with new information from an updated dataset. the database consists of 4 columns: User_ID, Login_Name, Password, Access. The following code makes a connection to the database, fills a dataset with the data from the database, reads a txt file with user name and passwords, and should update the dataset and then the database. However, I keep getting an Syntax error on the INSERT INTO statement on the datest.Update(dsUser,"User") line. I have found multiple posts on here showing the correct syntax of how to update a database, but I can't seem to get it to work.
so I was originally having problems even saving the data, but I can now get it to stay in the dataset, and when I switch to another page it stays there when I go back to it. Although when I close the form and reopen it, the changed data has not saved. I know that it is because I have only updated the dataset and not the database, so was hoping someone could give me pointers of how to approach it.
I have got problem when using the SQLCommandBuilder class. For me it throws an error saying that the select statement does not return any primary columns.... Which is weird becouse i am sure it does since the select statement is "SELECT * FROM MyTable" I am prety sure that selects everything including the primary column which is set to primary , realy i checked and doublechecked.
Secondly i tried to manually set the column(0) as primary by setting it's property bu no such luck of making it work.
I have these two functions in a class that i instanciate an object from in the main program:
Code: Public Function GetDB(ByVal DBName As String) As Data.DataSetDim SQLAdapter As SqlClient.SqlDataAdapter = Nothing
Try_SQLdataSet = Nothing
[CODE]...
This Functtion fills the dataset and returns it to my main program where i do lovely stuff with it. (Just as a side note this is a SCADA system and i always need the entire DB which is never bigger then just a few ( 6 ) entries so i must go for "*" ^^). Good part is, this works like a charm, i love it. Now i need to reset a few status bits etc and i assume with the update command. And that is where my joy starts to get stomped on a bit.... The code:
Code: Public Function SetDB(ByVal dataTable As Data.DataSet, ByVal DBName As String) As BooleanDim SQLAdapter As SqlClient.SqlDataAdapter = Nothing Dim SQLCommandBuilder As SqlClient.SqlCommandBuilder
[CODE]...
Now this would have been a great and small sollution to updating datasets with the server but obviously it doesn't work. There is that pesky error about my table having no primary key and I know it's lying it just want to annoy me :P. But seriously I am puzzeld why that error wont go away and i have exhausted all the tutorials i can find on this.
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..
Frontend: Visual Basic.Net VS: VS 2010 .net Framework: 4.0 Backend: MySQL 5.0. Everything is working well, add/edit/save. I am using datasets to manipulate the database the forms are created by wizard and i drag and drop the details over the form. The Problem: I delete a record on the form, it disappears (it deletes it from dataset i think) but i go to the database it is still there also if i close the form and re-open it the records re-appear.
There is something i do but it raises an error, after deleting the records i hit the save button,the following comes up. Transaction has already been rolled back or is not pending after that the records are really deleted.
I am using vb2008 express edition and SQL Server 2000What I am trying to do is programmically populate a dataset with records from a database and then bind the fields to textbox controls so that and changes will be updated in the dataset and eventually the database.I have managed to get as far as displaying the data in a form, but cannot understand how to update the database when a button is clicked.
How do you restore a dataset to the previous state before updating the database with a data adapter? I have a concurrency update problem that I believe to be caused by this. The update fails during the update and a rollback command is issued using a SQLTransaction object. However, now the rowstates of the rows that did not have errors have been changed to unchanged. So this record is no longer availible to be inserted into the database. When I updated the value that could not be null and then test the second update which runs just as the first does then I get a concurrency error. The update code is below:
Only my local dataset updates when adding, deleting or editing records.The Source Database is supposed to update on issuing DataAdapter. Update(dataset )However, when I check my source database after running the operations it remains the same as the original.
teaching myself (an oldfashioned VBA programmer) VB2010 by converting an existing Access 2003 application to VB2010. I can read my data from an Access database into a datagridview:
I have a DataGridView that is attached to a BindingSource that gets data from a SQL Server database. I can populate the DataGridView without a problem. I can even insert/update it without issue if I run the update code from a click event of a button. But where I run into issues is when I try to update the database as soon as the user is done editing a row.
I thought that the DataGridView_RowLeave event would be perfect for that, but it actually does not commit the changes until it has been fired twice (that is, after an edit, I have to click on a different row or arrow down twice before the edit shows up in the database). Then I thought why not call the update code on both the _RowLeave and the _RowEnter? That worked fine for updates, but then I found that three records were inserted into the database when I added a new row to the DataGridView (the data gets inserted, then a null value, then the data again).
After digging around on the web for most of the day, I found that the _RowLeave event actually gets called pretty early on when you move to another row, so I figured maybe the changes made in the DataGridView aren't getting transmitted to the underlaying DataTable before the DataAdapter.Update method is being called. That would explain why the data would not update with the first call to _RowLeave, but would when using a click on a save button (since all the DataGridView events would complete before the button click event fires). So, I begain experimenting by placing my update code into various events. I tried _CellEndEdit, _CellValueChanged, _CurrentCellDirtyStateChanged (with a call to DataGridView.CommitEdit), and _RowValidating. I even tried calling BindingContext(DataGridView.DataSource).EndCurrentEdit() in conjunction with my update sub, but none of those would update the database when the focus left the edited row. :(
I'm at my wits end here. Surley it's possible to commit the changes made on the DataGridView to the database when the focus is moved off the edited/new row. It's obvious to me that I need to flush the changes shown on the DataGridView down to the DataTable, but I can't seem to find the right method/event to do just that.
con.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Documents and Settings\Seth Hall\My Documents\Visual Studio 2005\Projects\Lunchout Server\Lunchout Server\agentinfo.mdb" con.Open()
[code]....
I have a DataGridView that I added to my form and I used its wizard or whatever its called to connect my access database to it. Now it displays my DB and everything I have my dataset as Agentinfodataset, my table adapter as agentstableadapter and then agentbindingsource etc.
Now this is my code to delete a selectedrow in the datagridview
Private Sub btndelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btndelete.Click For Each row As DataGridViewRow In DataGridView1.SelectedRows DataGridView1.Rows.Remove(row) Next End Sub
But it wont save to the database. Im messed aroudn with Fill, Update, AcceptChanged, EndEdit and I just cant see to get to work. I looked around on google and still nothing.
I am currently having problems with adding new rows to my database via the datagridview. I am able to edit previously existing data fine, however adding a new row in the datagridview then pressing this button gives the error 'Syntax error in Insert INTO statement'
Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click Dim i As Integer
I'm using VB.NET 2008 with a DataGridView and I'm interfacing to a Visual Foxpro 6 database using the vfpoledb.1 driver. When I change a value in the description field, it changes in the DataGridView but the database never gets updated. Do I need to use code to force the changes to take place?Here's the code I'm using:
Imports System.Data.OleDb Public Class Form1 Dim sConString As String = "Provider=vfpoledb.1;Data Source=C:MyDatabase.dbc;Mode=3;" Dim con As OleDbConnection = New OleDbConnection(sConString)[code].....
I have been trying to update my database using datagridview control.my code below gets the data from database to datagridview but when i hit the update button ,,i get an oledb exception saying error in insert into statement .
Imports System.Data.OleDb Public Class Form3 Dim cnxnString As String = ("Provider=Microsoft.JET.OLEDB.4.0;" & _
