Questions on UI for WPF Forum

7 answers

190 views

If Grid cell is a TextBlock, foreground is sometimes cleared

I sometimes hit strange behavior where if a column is brought out of view and then in again, the TextBlock's foreground property is set back to default Black. It looks like the offending code here is in GridViewCell.OnColumnChanged, which clears the TextBlock.Foreground property of the TextBlock in the cell (why it does this I don't understand).

I could derive from GridViewCell and put in my own behavior, since OnColumnChanged is protected, but the problem then becomes how to get the grid to use that cell instead of GridViewCell. I see that the only place GridViewCell is being created is in GridViewRow.CreateItem, which is an internal method and hence cannot be overriden by me. This leaves me no way of getting my CustomGridViewCell to be used in lieu of the default one.

Do you have any ideas of how I can deal with this issue?

Thanks

GridView

answered on 22 Dec 2010

2 answers

66 views

Setting a scroller for minimized tiles

Hello,
I want to use the TileView in the same way you used it in the example with the cars but when I add more items, I want to have them with a scroller where they are minimized on the right (like in the example with the flags). Could you please point me to how I can achieve it.

If it's simpler, tell me how can I modify the flags example so it will also be possible to be in a state that all the tileview items are in the same size (Normal state).

Thank you

TileView

answered on 22 Dec 2010

1 answer

147 views

LostFocus event fires everytime

Hi,
I have a datagrid which has template columns in it.
When i click a cell for editing, the grid's lostfocus is fired.
What i want to do is when the user edit a value in a cell and click outside the datagrid ie: on other control or the window its containing, i need to do something.
I tried to check !Datagrid.IsFocused and tried to do something when the grid doesn't have any focus. But that check always fails when i click outside the datagrid.

Any idea how to solve this?

Thanks

S

GridView

answered on 22 Dec 2010

1 answer

72 views

Can we get Column chooser option like how we have Row filter option?

I have to display Column chooser option like how we have Row filter (Row chooser) option when user clicks on Grid Header Filter icon. For this is there any option to set or we need to write the code. If we need to write it then please help me to do this.

Thanks in advance.
Balaji Kommuri

GridView

answered on 22 Dec 2010

0 answers

65 views

How to cancel drag in AddDropInfoHandler

Sorry this is a duplicate of something I just posted. Please refer to issue "How to cancel drop in handler specified by AddDropInfoHandler method "

Thanks,
Rod

ScheduleView

asked on 21 Dec 2010

2 answers

274 views

use GridViewSelectColumn as only method of selection?

Hi -
I want to use the GridViewSelectColumn as the ONLY method of row selection. Desired behavior: if a user clicks on a row, nothing will happen. But if they click on the checkbox in the GridViewSelectColumn, the row will be selected. In addition, the header checkbox in the GridViewSelectColumn must continue to select/de-select all rows. How can I best achive this?

I have tried setting the CanUserSelect=false on a grid containing a GridViewSelectColumn. This works fine for individual rows (only allowing row selection via the GridViewSelectColumn), however, if I click the GridViewSelectColumn Header checkbox, nothing happens (no rows are selected/de-selected).

I have also gone about handling the DataGridCell_PreviewMouseLeftButtonDown and DataGrid_PreviewMouseLeftButtonDown events, which allows the GridViewSelectColumn Header checkbox to work correctly, but it's definitely a hack, and not something I can easily implement across the many RadGridViews in my application.

Any help is appreciated.

GridView

answered on 21 Dec 2010

10 answers

812 views

Line Color

Hi

Is there an example of how to set the color of LineSeriesDefinition?

Thanks

Ghassan

Chart

answered on 21 Dec 2010

9 answers

247 views

Unable to dock pane after a LoadLayout

Hi,

I am attempting to use SaveLayout and when our app is re-run I use LoadLayout. Unfortunately, if the user floats a pane and then exits the app (saving the layout), and later re-runs the app and I load the layout, the floating pane is no longer able to be docked.

Looking in the XML that's written I see the RadSplitContainer is written with InitialPosition="FloatingOnly" which seems suspicious. I tried manually updating the XML file to set InitialPosition="FloatingDockable" but the pane is still not dockable.

If it matters, I do have SerializationTag set for all my panes, splitters and panegroups and do override the ElementLoaded event to plug in my own children of each pane (that part is working great).

Does anyone know what I can change to make the reconstituted Pane dockable again?

Thanks,
John

Docking

answered on 21 Dec 2010

2 answers

257 views

GridView cell selection

Hello guys

I'm evaluating RadControls for WPF and OA ORM for my next project. I'm just playing with it for just one day, but I'm already impressed with your work guys. Though, as a beginner, I can't figure out how to select a cell when new row is added to gridview. In other words, I want to select first editable cell and put it in edit mode when new row is added from InsertRow button. How is this accomplished?

EDITED
_____________________________

I will ask this one too here.
When cell validation fails, it would be nice to show the error message, without the need to move the cursor to the cell's red point. Is it also possible?

EDITED 2 :)
____________________________

is it possible to tell gridview not to change selection until all cells of the grid is validated? now it's possible to persist rows despite validation failure, which breaks business rule.

thanks

GridView

answered on 21 Dec 2010

3 answers

150 views

Need Row selection change event for validating the row

Hi ,
   I am unable to register row selection change event for rad grid
     I need previous row information to validate before i move on to next row.
    There is row validating event which is restricting deletion of the row.i should be able to delete the row too.

    I also need need delete row event.

Please suggest me how to handle the above issues.

Thanks,
Swathi

GridView

answered on 21 Dec 2010