VS 2010 Updating A Database In A Datagridview?
Apr 6, 2011
I have an existing database that Im using. I managed to update the database to whatever changes I do to the items in the datagridview using the code
Me.TblEmployTableAdapter.Update(Me.PoolsDataSet.tblPools)
Me.TableAdapterManager.UpdateAll(Me.PoolsDataSet)
Me.StockDataSet.AcceptChanges()
Me.TblEmployBindingSource.EndEdit()
But the thing is, whenever i write something in my code e.g "retyping the Me.close". It goes back to whats in the original items in my database.
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Feb 22, 2012
I'm loading a table from my database into a datagridview. Removing (multiple) rows from the database and the datagridview works great. Now I need to be able to add records directly into the database as soon as I add a new value into the datagrid.
- the id is the same ID as in the database
- the id-column is read-only
- the "datum"-column is where I want to add a new date (as soon as I leave the column it should add it into the database and the id should be added, without reloading the database) Adding the id (without reloading the database) is actually the most important part, but I don't have a clue how to achieve this.
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Jul 4, 2011
I am programmatically updating some columns in a datagridview. When the user has also updated some columns then my program generated changes are also saved to the database (MSAccess). If the user does not update a dgv column, my program edits are not saved. I have read in another posting somewhere that I should be updating the bindingsource rather than the dgv cells. I have some code that was attempting to do this but it doesn�t work.
Dim dvr As Data.DataRowView
With TblClassMembersDataGridView
.EndEdit()
.CommitEdit(DataGridViewDataErrorContexts.Commit)
[code]....
PS. Is the bindingsource in a on-to-one relationship with the table returned by the Fill method? If not, I can see one obvious error.
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Mar 6, 2010
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:
'Biog datagridview
cnGrid.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:UsersPeterDocumentsDatabasesTestDatabase.mdb;User Id=admin;Password=;"
[Code].....
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Jul 18, 2012
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.
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Jun 12, 2011
Public Class Form5
Dim connection As OleDb.OleDbConnection
Dim mystr As String
[code].....
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Jan 19, 2009
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.
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Apr 30, 2011
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
[code].....
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Feb 19, 2011
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].....
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Jul 13, 2009
i have code which display one table content to datagridview successfully using following code.
[Code]...
waiting for your reply.i google a lot but no success thats y i need to ask you guys.
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Feb 11, 2009
(1) my datagrid view is giving me some error msg when loading so pls what wrong with mycode?
(2) i want to use a listbox but dont know how to using code(run-time).
(3) and how do i save all the mess into a database keeping in mind need to guide against wrong entry
My code:
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Jul 24, 2011
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;" & _
[Code].....
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Apr 9, 2010
how can i update my database after deleting a row in a datagridview that is connected to this database.
Here is datagridview
Using con As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:My DropboxDocumentsTaxi Service ProjectDatabaseTaxiProjectDatabase.accdb;")
con.Open()
[code]....
Yet it does not update. No errors or anything just does not update.
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Apr 29, 2010
So I'm having more database problems. The specific problem I am having is that I am trying to update a DataGridView to display new information that was input into the database programmatically. I have tried several methods, but none have worked, and one actually "broke" the program. So I am in need of some more assistance.
Here is the current code that I am trying to use to update the view (this contains pretty much everything that I have tried up until this point):
[Code]...
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Jul 11, 2009
i have code which display one table content to datagridview successfully using following code.
[Code]...
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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)
[Code].....
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Aug 18, 2011
There are 2 subs. First one populates a DataGridView with data from a SQL table:
Dim SQLCom As SqlCommand
Dim myDA As New SqlDataAdapter
Dim myDS As DataSet = New DataSet()
[Code].....
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Mar 24, 2010
I have a datagrid view that displays information from a table. Changes I make to the data grid view are not saved. I have a button called btnsave but I have no idea what to put in the click event to save changes to the DB.
vb
Dim ConnStr As String = String.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0}", DataDir)
Dim conn As New OleDb.OleDbConnection(ConnStr)
Dim sql As New OleDb.OleDbCommand("Select * FROM USERS")
Dim dt As New DataTable
[Code] .....
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Apr 12, 2011
I have a datagridview that has 4 colums(ID,Name,Amount) connecting to the database in vb.net and im supposed to do is that whenever the user enter records with the same Name the column Name and the column Id remains its data while the Amount value is either adding or subtracting depending the update situation. Is this possible to do this in datagridview?
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Nov 3, 2011
I have a single table in a SQL Compact DB (*.sdf) and a Datagridview. When I put the datagridview on the form I connected it to the table in the compact DB. I also have a few button that, Deleted and Add a entry. Delete button obtains the selected datagridview row and resolve the record ID. It then deletes the record in the database. The record gets deleted but the datagridview does not show the update unless I restart the debug session. I make teh same cal to:
Me.TblTableAdapter.Fill(Me.Database1DataSet1.tbl) which is called when the form load that fills the datgridview..
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Feb 15, 2012
I have a datagridview and 3 buttons (New, update and delete).When I enter the form and I make changes to the datagridview and I save them, everything works fine.After the first save I make some more changes and I hit save again I get the error:"system.data.dbconcurrencyexception concurrency violation the updatecommand affected 0 of the expected 1 records"
The code I use below:
Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
Me.dgvOrderRegel.AllowUserToAddRows = True
[code]....
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Sep 4, 2011
I am making a project for data entry on VB 2010. Database used is MS ACCESS 2007. In that there are buttons for next, previous, move first, move last, edit,add,delete,save,cancel.The problem is that when i run the code, and delete a record, the record gets deleted and next time i run, that record is not present but when i add a record or edit a record, at that moment it shows the updated record bus as soon as i close the code and run it again, the record is not updated.
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Feb 24, 2012
In our project, we have 2 client PCs having their own local databases and 1 server PC who also have its own local database(.mdf). These three are connected through a local area network so I would like to perform updates to the client PC database from the server PC. There should be two types of update, one is that the server will send its entire database to the clients and overwrite the client's databases and the other is to append the changes made in the server database to the client database. I only want to use vb 2010 so I used the SQL connection class.
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Jul 14, 2010
I got an Syntaxerror in my INSERT INTO but i cant figure out why.
[Code]...
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Jan 17, 2012
I have part of an application that reads from a database makes changes to the data then saves the changes to the database.
[Code]...
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Mar 5, 2011
I used in Visual Basic 6 to update my MS Access Table to get UPDATED Balance Column. Now my problem is the same code I want to use in Visual Basic 2010 to update SQLserver Table.[code]I have Dataset, Bindingsource and TableAdaptor in Windows Form so with that how can I update my Balance Column. The Table contained 3 columns i. Debit ii. Credit iii. Balance.
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Nov 3, 2011
I am trying to update the password field in a table called tb_Users for a given username. The following code works fine when I use literal values for the new password and for the Username.
[Code]...
How do I substitute the characters 'whogoesthere' for the contents of a TextBox called TextBox1 and the characters 'Joe Blogs' with the contents of a public varialble called PubUsers ?
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Feb 1, 2011
I'm using Access 2010 for 2 small databases for a windows forms desktop application.on Form 1, my datagridview updates Paccounts.mdb correctly as follows:
end_OK:
Try
Me
.PaccountsTableAdapter.Update(PaccountsDataSet.Paccounts)
[code]....
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Jul 28, 2010
I was trying to edit and update an existing record in my database. I am getting an error, my code is here:
Editing Records
Private Sub btnEdit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEdit.Click
Dim qry As String
[code]....
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Feb 12, 2012
My project involves making a table database that displays student number, surname, first name, homeroom, and grade avg. Through SQL commands, there must be functions to add, update, delete, search by field, and save records to the database.I have already set the database up just fine and displayed it in a DataGridView. Through the DataGridView, I was able to go to the "Add Query" area, and I successfully made the queries necessary for searching by field. However, when I try to do anything other than a search using the query builder (ie start my SQL command with INSERT INTO or DELETE FROM), I ultimately get the message "Failed to get schema for this query"For example, this SQL code (to add an entry to the database) worked when I was in the Query Builder (and the entry that it made is still in the database), but when I finally tried to confirm it, I got the "Failed to get schema for this query" message.Being unable to add entries to the database this way, I tried to do it with textboxes on a form. Each textbox will have one of the fields, and at the click of a button, they would be put into the table. My code is below. I do not know what is wrong withit. When I run it, my fields do not appear on the DataGridView immediately, but I must run the program again to see it. The time after, the entry is gone. So I am not sure how exactly such entries are to be saved.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
[code].....
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