Question

.Update does not save changes to the SQL database (kinda urgent... I need to move on...)

Asked by: stanvickers

Experts:  I'm trying to take advantage of VS2005 bound controls...  I'm binding 2 different datatables (same dataset) to text boxes on a form.  Both tables basically contain one record ... Application filled by ApplicationID and Employee filled by EmployeeID.   I allow the user to change the fields and then click "Save".  It seems to update the Dataset (temporarily) ... in fact I can close the form and reopen it and the changes are there... BUT when I close down the application and run it again I discover that the DATABASE was not changed.  I have to be missing a step.  I'm using .update method of the tableadapter... Summary of code below

'--- Fill the tableadapters on form load like this

        ' Application - Should be passed on edit mode
        Me.ApplicationTableAdapter.FillByApplicationID(Me.DMSI_HR_Dataset.Application, Me.ApplicationID)

        ' Employee - Should be passed on edit mode
        Me.EmployeeTableAdapter.FillByEmployeeID(Me.DMSI_HR_Dataset.Employee, Me.EmployeeID)

'-- User makes changs to the bound text boxes

'-- User Clicks "Apply" (Save)

      ' End edit mode...
      Me.ApplicationBindingSource.EndEdit()
      Me.EmployeeBindingSource.EndEdit()

      If Me.Validate() Then
        UpdateDatabase()
      End If

'-- Update routine

      ' Update Application ?  
      If Me.DMSI_HR_Dataset.Application.GetChanges IsNot Nothing Then
        Me.ApplicationTableAdapter.Update(Me.DMSI_HR_Dataset.Application)
      End If

      ' Update Employee ?
      If Me.DMSI_HR_Dataset.Employee.GetChanges IsNot Nothing Then
        iRowsChanged = Me.EmployeeTableAdapter.Update(Me.DMSI_HR_Dataset.Employee)
      End If

'-- By the way:  iRowsChanged returns 1 which is correct...

'-- That's all - From the examples I've checked I think that is all I need... what Am I missing -- I can write Custom code, but trying to avoid it if I can figure out all this bound control stuff...

Thanks in Advance -
Stan

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Asked On
2006-09-06 at 14:46:46ID21980406
Tags

update

Topic

Microsoft Visual Basic.Net

Participating Experts
2
Points
500
Comments
3

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Answers

 

by: vadim63Posted on 2006-09-06 at 15:12:18ID: 17466803

What is UpdateDatabase()?

 

by: SanclerPosted on 2006-09-06 at 15:14:01ID: 17466817

I cannot see anything obviously wrong with the code.  So see if this rings any bells

http://www.experts-exchange.com/Programming/Programming_Languages/Dot_Net/VB_DOT_NET/Q_21896499.html

Roger

 

by: stanvickersPosted on 2006-09-06 at 17:40:17ID: 17467595

Hi Sancler,

Thanks for the quick answer.  You were on the Money!   That will save me a few hours.  

Stan.

20120131-EE-VQP-002

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