Silverlight Controls and Silverlight Toolkit

Re: Re: Re: Re: Re: Datagrid with tab navigation

nivazone — Tue, 08 Sep 2009 00:40:52 GMT

I had the exact same problem, what I did to overcome double tabbing is;

- Call BeginEdit() in CurrentCellChanged event of the datagrid

- Use PreparingCellForEdit event of the datagrid to get EditingElement (which is in DataGridPreparingCellForEditEventArgs), and locate ComoBox or TextBox by scanning visual tree.

- Once you found the control, set it to focus using Focus() method.

Hope this helps.

Re: Re: Re: Re: Re: Datagrid with tab navigation

puckoff7337 — Wed, 29 Jul 2009 10:21:23 GMT

Thanks, this thread was useful...

Re: Re: Re: Re: Re: Datagrid with tab navigation

LarsHolmJensen — Wed, 27 May 2009 07:36:09 GMT

private void SetCaretInCurrentCell()

{

dg.Dispatcher.BeginInvoke(new Action(setCaretInCurrentCell));

}

private void setCaretInCurrentCell()

{

dg.BeginEdit();

dg.Focus();

}

Re: Re: Re: Re: Re: Re: Datagrid with tab navigation

lee_sl — Thu, 15 Jan 2009 21:02:13 GMT

Re: Re: Re: Re: Re: Datagrid with tab navigation

hehrsson — Thu, 20 Nov 2008 10:49:01 GMT

Same problem for me, the BeginEdit will bring the TextBox in focus but the caret is not displayed.

Before I tried this, clicking once with the mouse in a cell would mark the cell with a blue border around it.
Clicking a second time would bring up the TextBox specified in CellEditingTemplate (the background in the cell becomes white instead of blue), but I could still not write anything into the TextBox.
Clicking a third time would make the TextBox editable.

After I tried the BeginEdit() stuff I managed to get rid of the first step (just marking the cell), but I still need two clicks to get the caret displayed in the TextBox making it possible to write anything.

I have the same demand from my customers, navigating the grid with the Enter key, but with an addition, when pressing Enter in the last cell on the last row, a new empty row should be added (I'm creating an invoice registration form where you add invoice rows in the grid).

- Håkan

Re: Re: Re: Re: Re: Datagrid with tab navigation

SASilver — Mon, 17 Nov 2008 09:30:26 GMT

My datagrid has many of the cells as editing templates and i also tried hooking the event Begin Edit... But dint work right for me.

How did u guys solve it ?

Re: Re: Re: Re: Re: Datagrid with tab navigation

lee_sl — Tue, 28 Oct 2008 10:29:29 GMT

you can handle the currentcellchangedevent and call BeginEdit() to force the current cell to be go into editmode

Re: Re: Re: Re: Datagrid with tab navigation

R3al1ty — Fri, 24 Oct 2008 02:55:36 GMT

Thanks, could you elaborate on how I could achieve pt 2 on this basic template? I am trying to see if there is a generic way I can achieve this.

...
<CellEditingTemplate>
<Grid>
<TextBox Text="{Binding Name}"/>
</Grid>
</CellEditingTemplate>

Re: Re: Re: Datagrid with tab navigation

xusun — Sat, 18 Oct 2008 16:14:54 GMT

This is because you are using CellTemplates. The DataGrid only knows that it needs to use the CellEditTemplate for that cell after you hit Tab and show you the content in your CellEditTemplate. It doesn't know which element in your CellEditTemplate should get focus. I suggest the following:

1. If it's equvalent to a TextColumn, you may consider to restyle it to meet your requirement and let the default DataGrid behavior do the focus for you; Or

2. You can hook up some event to make the textbox gets focus when the cell gets focus

Re: Re: Re: Datagrid with tab navigation

R3al1ty — Sat, 18 Oct 2008 15:59:42 GMT

Hey thanks, that works!

...but, if I have a couple of TextBoxes in a row as my CellTemplates, if I type something inside one of them and Tab to the next, the next cell switches to a TextBox but I have to click once more inside before I can type something in.

Re: Re: Datagrid with tab navigation

xusun — Sat, 18 Oct 2008 12:49:46 GMT

First of all, DataGrid does support Tab navigation. Tab navigation is supported when the datagrid is in Editing mode, i.e. after double clicking a cell. While not in editing mode, users can still use Arrow keys to navigate the cells.

However, there is a bug not fixed in RTM. When the datagrid is the last element in your panel, Tab navigation will not work. It will navigate to the address bar. The walk-around is to add something after the datagrid, for example, a ContentControl.

Re: Re: Re: Datagrid with tab navigation

AdmiralGanja — Fri, 17 Oct 2008 06:46:33 GMT

This is probably because the browser already handled it. So if anyone know how to catch and prevent that event from being handled by the browser it might be the solution, but still I guess this is very browser specific, and could not be handled in code... Please proove me wrong anyone?

R3al1ty: At least the users could navigate in the DataGrid with the arrow keys, but I defenitely concur with you... Please Microsoft staff, help us out here with this usability issue!?

Re: Re: Datagrid with tab navigation

R3al1ty — Fri, 17 Oct 2008 02:14:20 GMT

Could a microsoftie respond, its a bit too much to ask users to click each cell with the mouse in a real-world app. Thanks.

Re: Datagrid with tab navigation

AdmiralGanja — Tue, 30 Sep 2008 11:24:23 GMT

I wonder what

TabNavigation= [cycle, once, local]

is intended to do... Doesn't seem to affect the tabnavigation between cells anyway...

/Jesper

Re: Datagrid with tab navigation

R3al1ty — Tue, 30 Sep 2008 09:55:05 GMT

Ouch, you are right. Cant Tab between cells in the DataGrid ... man, our users are going to scream.

Any workarounds from the experts?