if (this.radGridView_A1.SelectedRecords.Count() == 0)


does not compile with the latest (q3) wpf dlls

 

I have to grid views (one is my medialibrary and one for a playlist). I want to drag songs from the "medialibrary" to the "playlist", I aslo need to be adle to insert anywhere on the "playlist" grid when I drag from "medialib".

Also need to dragdrop within the "playlist" so I can change place on the songs in the "playlist".

Now I only get drag from "medialib" to "playlist" work sort of, and the tooltip looks funny.

Help!

C#


WPF:

hi
i would like to rollback the datetime user selection under the 'SelectedStartDateTimeChanged' event.
it seems that the SelectedDateTime property is updated correctly but the time control (view) is not.

scenario
the current dateTime selection is  29/12/2009 14:00
user try to change the datetime to  29/12/2009 15:00
then i would like from the time control to show 14:00 and not 15:00

source code:
 private void OnSelectedStartDateTimeChanged(object sender, RoutedPropertyChangedEventArgs<DateTime?> e)
        {
            try
            {
                UnSubscribeToSelectedStartDateTimeChanged();
                if (e.OldValue == null) //first time loading
                    return;

                 startDateTime.SelectedDateTime = (DateTime) e.OldValue;
              
            }
            finally
            {
                SubscribeToSelectedStartDateTimeChanged();
            }
        }

I'm trying to use the RadGridView AggregateFunctions. I've tested Count, Min and Max functions successfully. However, when I try using SumFunction or AverageFunction, nothing is displayed on the column footer (including the previously added Count, Min, Max functions).

hello i have the rad gridview in my project and i need too diffrent color for rows

for example 
1 row     Blue
2 row   yello

3 row     Blue
4 row   yello

5 row     Blue
6 row   yello

and....

I am looking for a way to make the gridview go directly into edit mode when the cell is clicked on.  I also need the up and down arrow to move the selected row/cell

Hello, from what I understood based on the previous threads here, the DragEnter, DragOver, Drop... events from

I don't know if it is something we are doing wrong or if it the control itself.

When you open several nodes the process hits levels of 40%-50%.

I ran the profiler while viewing the TreeView. It shows that the node expanders are continually refreshing.

I'm deducting that the loading animation begins but does not stop. It looks like the screen is refreshing even in when the animation's visibility is not visible. I don't know if it is a fact that the screen is trying to refresh because of the loading animation, but it seems like it.

In the template, the trigger is defined:


If what I stated above is true, wouldn't you need to add and ExitAction like:



Have you seen this behavior? Am I missing something?

Thanks

I have a stacked area chart set up with multiple series. The source of the data is an observable collection. When I add items to the observable collection, the chart does not update. When I bind the data directly without using multiple series, it updates fine. How can I get this working?

        private ObservableCollection<ChartPoint> _kw1;
        private ObservableCollection<ChartPoint> _kw2;

        private Timer _timer;

        void Window1_Loaded(object sender, RoutedEventArgs e)
        {
            _timer = new Timer(TimerCallback, null,TimeSpan.Zero, TimeSpan.FromSeconds(1));

            RadChart1.DefaultView.ChartArea.AxisX.IsDateTime = true;

            _kw1 = new ObservableCollection<ChartPoint>();

            _kw2 = new ObservableCollection<ChartPoint>();

            var seriesList = new List<ObservableCollection<ChartPoint>> { _kw1, _kw2 };

            var lineDefinition1 = new StackedAreaSeriesDefinition();
            var lineDefinition2 = new StackedAreaSeriesDefinition();

            var series1 = new SeriesMapping { LegendLabel = "Paint Line", CollectionIndex = 0, SeriesDefinition = lineDefinition1 };
            series1.ItemMappings.Add(new ItemMapping { DataPointMember = DataPointMember.YValue, FieldName = "Kw" });
            series1.ItemMappings.Add(new ItemMapping { DataPointMember = DataPointMember.XValue, FieldName = "Timestamp" });

            var series2 = new SeriesMapping { LegendLabel = "Fan 1", CollectionIndex = 1, SeriesDefinition = lineDefinition2 };
            series2.ItemMappings.Add(new ItemMapping { DataPointMember = DataPointMember.YValue, FieldName = "Kw" });
            series2.ItemMappings.Add(new ItemMapping { DataPointMember = DataPointMember.XValue, FieldName = "Timestamp" });

            var seriesMappings = new SeriesMappingCollection {series1, series2};

            RadChart1.SeriesMappings = seriesMappings;
            RadChart1.ItemsSource = seriesList;
        }

        private void TimerCallback(object o)
        {
            Debug.WriteLine("Updating...");

      if(!Dispatcher.CheckAccess())
      {
                Dispatcher.Invoke(new ThreadStart(() => TimerCallback(null)));
          return;
      }

            _kw1.Add(new ChartPoint{ Kw = (new Random()).Next(0, 10), Timestamp = DateTime.Now});
            _kw2.Add(new ChartPoint { Kw = (new Random()).Next(0, 10), Timestamp = DateTime.Now });
        }

Are there any plans to port the RadRotator control (my favourite) to WPF or SilverLight? I'm relatively new to WPF, so maybe there's a methodology for easily re-creating this effect that I am not familiar with.