Datagrid focus to selected row - wpf

Question

I have a simple datagrid with some itemssource. I select a row and go to other control. Every time i focus the grid again using tab, it selects the first row and cell. (It show a black border box on first cell)
I have set the IsSynchronizedWithCurrentItem="True" but not working
I want the previous selected row to get focus.

Answer 1

"it selects the first row and cell" no in fact the selection remains as it was but yes when the focus returns to datagrid the focused cell will change to the first cell.
Check if this approach suits you, it's the simplest I came with so far!:
First, add event handler to cell GotFocus and LostFocus as follows:
<DataGrid x:Name="list_1">
<DataGrid.Columns >
<DataGridTextColumn Header="ID" Width="30" Binding="{Binding id}"/>
<DataGridTextColumn Header="Name" Width="50" Binding="{Binding name}"/>
<DataGridTextColumn Header="UserID" Width="50" Binding="{Binding user_id}"/>
</DataGrid.Columns>
<DataGrid.CellStyle >
<Style TargetType="DataGridCell" >
<EventSetter Event="GotFocus" Handler="cgf"/>
<EventSetter Event="LostFocus" Handler="clf"/>
</Style>
</DataGrid.CellStyle>
</DataGrid>
In your code behind, add the following code:
Private WithEvents timer1 As New Threading.DispatcherTimer With {.Interval = New TimeSpan(0, 0, 0, 0, 50)}
Private WithEvents timer2 As New Threading.DispatcherTimer With {.Interval = New TimeSpan(0, 0, 0, 0, 50)}
Dim LastFocusedCell As DataGridCell
Dim focus_lost As Boolean
Sub cgf(sender As object, e As RoutedEventArgs)
timer1.Stop()
If focus_lost Then
focus_lost = False
If LastFocusedCell IsNot Nothing Then
list_1.IsReadOnly = True
LastFocusedCell.Focus()
timer2.Start()
Else
LastFocusedCell = sender
End If
Else
LastFocusedCell = sender
End If
End Sub
Sub clf(sender As Object, e As RoutedEventArgs)
timer1.Start()
End Sub
Private Sub tmr_Tick(sender As Object, e As EventArgs) Handles timer1.Tick
timer1.Stop()
focus_lost = True
End Sub
Private Sub tmr2_Tick(sender As Object, e As EventArgs) Handles timer2.Tick
timer2.stop()
list_1.IsReadOnly = False
End Sub
I don't think it's the best approach but it worked fine for me.