I am trying updating a record. It seems like I did all the right things but I can't seem to update my database. I'm not sure if my update button is functioning as it should be.
Private Sub UpdateButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles UpdateButton1.Click
Dim cb As New OleDb.OleDbCommandBuilder(da5)
While count5 < MaxRecords5
cells5 = 0
[Code] .....
Whenever I edit the datagrid, and press update, it doesn't really update the database.
Open/Edit/Delete is through below code Public conn As New OleDb.OleDbConnection Public da As OleDb.OleDbDataAdapter
[code]....
I am displaying this data in a datagrid by connecting datasource and datamember.What i need is to displat a dropdown on second column in the datagrid. When i change the data it should update the database PBL (Visual Studio 2010 Ultimate)
I am having a problem getting updates and deletions to go back to my SQL database.Adding a new record is fine.But if I try to delete or change a record and then use a button to update I get this error:Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information.I have tried to use the update command that is part of the SQL command builder but it gives me an error as well.[code]
I'm at the moment busy with a project for school. Well I have a datagridview that displays all of the employees within the company. But I want to be able to change, delete or add new employees in the datagridview and then save it in the actual database. I used this code to do that.
But when I run my program and click on the save button I get this error message:
Application Exception was unhandled
TableAdapterManager contains no connection information. Set each TableAdapterManager TableAdapter property to a valid TableAdapter instance.How can I get around this? I think it has to do that my dataset exists out of 1 table but actually it contains items from 2 tables. Would this be the problem?I need to have the dataset like that though otherwise other parts of the program won't work.
I have this program im making it is supposed to be a basketball game monitor. The user enters two teams and the 12 players on each team then it has you pick the 5 active players and takes you to the run form where you can start the game once started you can add things like fouls and baskets made and attempted if a player gets 5 fouls or you hit stop clock you change which players are active and its supposed to update the database through the dataset and dataadapter but it doesnt seem to update the database with the info put in the datagrid view.
Here is the code of the run form i will also attach source in zip file if needed to point out mess ups
Update: When you hit resume game after change of players is when it puts zero on everyone again.
Basketball-RealTime-Monitor.zip (322.22K) Number of downloads: 74
I got a system which i want to insert, delete, update the data into my database and the data from database will be display using datagrid. The below is the coding for one of my button, delete.
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click Try btnSearchEmpNo.Enabled = False[code].....
Now I wanna set when user click on this button to delete a employee (for example) then the datagrid that i have in my application will not show the data of the deleted employee but in the background, the employee haven't been deleted from database.The employee only will be deleted from database when the user click on SAVE button.I know this application have to use RowState but how?
I'm working on a piece of code at the moment that uses an older style DataGrid to allow the user to enter information into the table. It already has an add and delete button. Currently the user enters information into 3 textboxes that are in the footer, and the other rows use labels to display the information.
Essentially what I am wanting to do is take the line that the user has clicked the edit button on, and move the text from there in to the footer (deleteing the row that it was displayed on) so the user can make changes and then click the add button again. At the moment I have tried using FindControls to find the textbox and setting the text that way but it doesnt like it.
So Let me explain the situation, I have a Mainpage Form with a DataGrid Object on it. I have a Create Post Form and I want to use the create post form to also edit a post. Now only individuals who posted a specific post can edit it. I have all the validation code in to check the user etc. I used a simple boolean and then in the create post form created two subroutines, Newpost and Editpost. I have the New Post working perfectly, but i can't get the edit post to work.
Dim startdate As DateTime = Departdate.Value.Date Dim enddate As DateTime = returndate.Value.Date MainPage.SelectedPost = DirectCast(PostBindingSource.Current, DataRowView)
after editing my cell in the datagrid . i am sorting then i select the next record the selection was do to the 1 cell on the row .i don't know what is the problem
I have a datagrid who's ItemsSource is a strongly typed IEnumerable object In this datagrid, I have a checkbox column, a price column, a part name column, and a 'total selling for' column. On checking the checkbox I need to update the total selling for column with the value in the price column. This part I have working, however, how can I get the checkbox to remain checked when this happens?
Private Sub UpdateSellFor(sender As System.Object, e As System.Windows.RoutedEventArgs) Dim _CB As CheckBox = DirectCast(sender, CheckBox) Dim _ID As Integer = _CB.Tag Dim _PP = DirectCast(DG_PartsToSelect.CurrentItem, PartTyping).PartPrice
What I am trying to do basically is open an access query in a datagrid view and then be able to make changes to the datagrid and then save it back to the database.When I try to save:
I'm using an Access Database and want to do something that I didnt think would be that big of a deal...I'm trying to take update a database with a value given by the user. I am having no luck with this...basically all I'm interesting in doing is having a user choose a value and then hit an update database button that adds that value to its corresponding value in the database...This is for an inventory program..
I have a problem with the database and the DataGridView. After editing the attributes of the database you can not see changes in the DataGridView. If you connect the DataGridView through code connection is correct. What could be the reason? What could be the fault of pliu nmd_piDataSet?
(When I plug the same database under a different name everything works as it should.) I have a table with about 20 columns and I can easily edit szeroość, view columns, using the code is problematic and not so intuitive. [Code]
with editing a single field of a database. variable dS is my dataset variable in which i have filled with the tables of my database. since its my first time in database management with vb.net
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click If txtPOno.Text = "" Or txtDate.Text = "" Or txtSuppCode.Text = "" Or rBOM < 0 Or
[Code].....
inorder to pass. honestly, i really think that im using a BRUTE FORCE method.
well this may be a simple question to some but for me, im not even sure where to start. I have never done a program in VB.NET yet that uses a MySQL database. So this should be a fun thing to learn. I looked at an example for access databases and it seemed pretty straight forward. But I must use MySQL as the database is on a Linux server in Ohio.
What I got so far is how to connect to the database using ADODB. Here the example I'm giving. You got 4 col's call AccountNum (primary key), Phone, Name, and Address. For each row is data of a client. What I'm trying to do: the program asks for the account number. You type in the account number of the client. It then compares it to the rows of AccountNum col till it finds a row with it. Then it asks if you'd like to change the phone number or address.
So what I'm looking for is the, how to call rows and change data in col's.
I know this sounds simple to the majority of the database gurus out there but I am finding it difficult to find anything related.I am using Visual Studio 2008 VB.net winforms application.I have a form which contains a datagridview. what I want to do by push of a button is set the field "OnHand" either to default or 0. The 'either or' is really for you guys. Which ever one works the best in terms of reducing code or functionality is obviouls prefered.Once the 'OnHand' Fields in every record has changed then I would like to save all the data back to the database'This is more than likely very simple I just cannot find anything that discusses this kind of thing.
My form just isn't updating the row in the database: Here's my code: Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSubmit.Click If Request.QueryString("a") = "edit" Then Dim CategoryText As String = lstCategory.SelectedItem.Text Dim conn As New SqlConnection("Data Source=.SQLEXPRESS; Initial Catalog=LogansArchive; Integrated Security=True;") [Code] .....
I've never used nested SELECTs in SQL before so I'm not sure if I did it right. Aside from that, this is all stuff I've done before so I'm relatively sure that it's all correct. Finally, there are no errors being reported when I debug, although the updates don't seem to be coming through from the text fields (txtContent.Text isn't changing to reflect the new value).
I am making a application that has the ability to edit values on a access database table. As a simple example, My table looks something like this:
Order Number Completed 2000 No 2001 No 2002 No
The application needs to edit the Completed columns. I have 1 text box, and 1 button in my form. You enter the Oder Number in the textbox and press the button. The VB application then needs to change the Completed to Yes in the database. Example, I type in 2002 in the textbox and press a button. The application changes Completed to Yes for this order number in the access database and saves/updates the database.
I am fresher in vb.net but I have experience in vb 6.0. But I want to connect database in sql server through sql connection. In that case how to create connection with window or sqlserver authintication mode and how to add or update new record in data base in batch transaction. Please help me with sample code. So that I can understand eassily.
I have a issue with updating a row in a DataTable. I can initially create and populate the data table. But I am unable to update a row. I have found examples of datatabe connected to database ETC. Looking around I see reference to LoadDataTable but I can not find a way to make PmaDataTable. LoadDataRow() work.[code]
how to update the sql database from the gridview without having to add a primary key to the table,like when the user finishes updating the datagrid it will go delete the sql table and replace it or read with the adapter and fill the rows i cant find a way for this its not making sense to me i wrote a code i am sure its all wrong i am trying to return all rows values from datagrid
For i As Integer = 0 To DataGridView1.Rows.Count - 1 For Each column In DataGridView1.Columns For j As Integer = 0 To DataGridView1.Columns.Count - 1
I have a form that contains a datagrid control. This form call another form and from that form i change the datagrid caption property. When i show the form that contains the datagrid, the property caption it have not changed. But if i give it the focus the property is updated. I After change the property value call the refresh method on the datagrid, But that not update the datagrid display
I have a general ledger branch file mtn. form in vb 2008. I am using a datagrid that is bound to an sql 2008 table using a dataset. In the grid I am allowing the user to update 6 of the fields in the table. The table also has a date last changed field. Who do I get the date last changed field changed to the current date for only the rows in the grid that have changed?
