Solved

DataGridView: Updating DS after changes

Posted on 2006-11-01
7
500 Views
Last Modified: 2008-02-26
Hello. I'm working with Datagridview, loading and binding to a dataset created on the fly.

        Public Function CropMasterSelect(ByVal WhereClause As String) As DataSet
            With cmd
                .Connection = con
                .CommandText = "admCropMasterSEL"
                .Parameters.Clear()
                .Parameters.AddWithValue("@WhereClause", WhereClause)
                .CommandType = CommandType.StoredProcedure
            End With
            da.SelectCommand = cmd
            ds.Tables.Clear()
            da.Fill(ds)
            Return ds

        End Function

        Me.DataGridView1.DataSource = db.CropMasterSelect(CreateWhereClause).Tables(0)
        Me.DataGridView1.Columns(0).Visible = False

My question is, after changes have been made in DataGridView by the user, how do I update those records back to the database?  Can I somehow use the dataset that was created on the fly?  Any code examples would be helpful.

Regards,
ADWooley
0
Comment
Question by:adwooley2
  • 3
  • 2
  • 2
7 Comments
 
LVL 10

Accepted Solution

by:
ericwong27 earned 300 total points
ID: 17848278

       ' Retrieve source data
        Dim lDataTable As DataTable = CropMasterSelect(WhereClause).Table(0)
        lDataTable.AcceptChanges()

        ' Assume data has bee change
        lDataTable.Rows(0)(1) = "xxx"

        ' Update the changes
        For Each lRows As DataRow In lDataTable.GetChanges.Rows
            ' Write a code to update the changed
        Next
0
 
LVL 5

Expert Comment

by:DEEPESH
ID: 17848763
Its all about AcCeptChanges, this command will save bach changes to Database.
http://msdn2.microsoft.com/en-gb/library/system.data.dataset.acceptchanges.aspx
0
 
LVL 10

Expert Comment

by:ericwong27
ID: 17848856
Hi, DEEPESH

AcceptChanges just commit the change on dataset but not in database. To update the data on database need to use DataAdapter.Update(ds) but since store procedure is used is not applicable here.



0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 5

Expert Comment

by:DEEPESH
ID: 17849087
Hmmm
Sorry EricWong27 I forget to mention the Update command, but in this kind of scenario I think we have to make an seprate  update query and update database
0
 

Author Comment

by:adwooley2
ID: 17854627
Thanks for your comments.
Eric, I can't use DataAdapter.Update(ds) when using a stored procedure? I am forced to iterate through the datarows and update with changes one by one?
0
 
LVL 10

Expert Comment

by:ericwong27
ID: 17856158
Yes ... DataAdapter.Update(ds) has some limitation, you should not use store procedure, make a query from more then 1 table and etc
0
 

Author Comment

by:adwooley2
ID: 17856166
Eric,
Thanks.  I did solve my problem.  However, I'm having another related problem.  
I posted a new question:  Datagridview - update problems

If you can help me, I would be appreciative.
Regards,
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

If you're writing a .NET application to connect to an Access .mdb database and use pre-existing queries that require parameters, you've come to the right place! Let's say the pre-existing query(qryCust) in Access takes a Date as a parameter and l…
Microsoft Reports are based on a report definition, which is an XML file that describes data and layout for the report, with a different extension. You can create a client-side report definition language (*.rdlc) file with Visual Studio, and build g…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, just open a new email message. In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
Learn how to create flexible layouts using relative units in CSS.  New relative units added in CSS3 include vw(viewports width), vh(viewports height), vmin(minimum of viewports height and width), and vmax (maximum of viewports height and width).

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now