I cannot update my bindingnavigator

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Hello,
Dear memebers, when I'm trying to delete and update my bindingnavigator it shows me following error.
Update requires a valid DeleteCommand when passed DataRow collection with deleted rows.
I dont whats going wrong following is the code to update my binding navigator

VB

Me.Validate()
Me.TableAdapterManager.UpdateAll(Me.myDataSet)
Me.myBindingSource.EndEdit()

Plz i need ur help...

Posted 23-Nov-11 20:21pm

mirzamujib

Updated 27-Sep-17 4:26am

Sander Rossel

v2

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Anoop Ananthan · Answer 1 · 2011-11-26T11:07:00

Solution 1

You have not mentioned your delete command. In the properties of the adapter object check the delete command field.
If there is no primary key for this table then you can not delete or update.

Posted 26-Nov-11 11:07am

Anoop Ananthan

Updated 29-Nov-11 8:39am

v2

Nikil S · Answer 2 · 2011-11-26T12:42:00

Solution 2

Try checking the properties of the TableAdapterManager update & delete commands to see if they are valid.

If the table being affected has no primary key this can also cause this type of problem.

Reference[^]

Posted 26-Nov-11 12:42pm

Nikil S

Andrew Alix · Answer 3 · 2017-09-27T04:26:00

Try putting your EndEdit line before you do the update.

If that doesn't work, you can try the old method. I've never seen this fail. I use it after the UpdateAll(Me.myDataSet) to check if it really updated.
It's extraneous, and should be unnecessary, but it works.
Just change the Dataset names and TableAdapter names. You might even want to put them in a Try Catch

VB

If yourDataSet.HasChanges then
  'Don't forget the '()' since DataRow is an array
  dim drModified() as DataRow = yourDataSet.Table.Select("", "", _ 
      DatViewRowState.ModifiedCurrent)
  If drModified.Count > 0 then
     yourTableAdapter.Update(drModified)     'Not TableAdapterManager
  End If

  Dim drDeleted() As DataRow = yourDataSet.Table.Select("", "", _
      DataViewRowState.Deleted)
  If drDeleted.Count > 0 Then
     Me.yourTableAdapter.Update(drDeleted)
  End IF

  Dim drAdded() As DataRow = yourDataSet.Table.Select("", "", _
      DataViewRowState.Added)
  If drAdded.Count > 0 Then
      yourTableAdapter.Update(drAdded)
  End If
End If

'You can also combine the above into one line as below.
Dim drModified() As DataRow = yourDataSet.Table.Select("", "", _
     DataViewRowState.ModifiedCurrent Or DataViewRowState.Added)

'I would keep the Deleted line separate so you can confirm all deletes and cancel if you want.