Hi

I think I found a bug involving drag/drop on the radscheduler.
The synopsis is with RadPanel and RadScheduler. I drag an item from the panel and drop it on the scheduler and build an Appointment
It's working fine in general.

But if I slowly move the drag cue on an existing Appointment, immediatly when the cursor moves on the text displayed, the DragAndDropManager crashes. It works fine if I don't display Appointment.Subject.

I was able to solve the issue by creating an appointment template like this:

 

 

<DataTemplate x:Key="AppointmentTemplate">

 

 

 

<Border>

 

 

 

<TextBlock x:Name="PART_SubjectTextBox" Text="{Binding Path=Occurrence.Appointment.Subject}"></TextBlock>

 

 

 

</Border>

 

 

 

</DataTemplate>

 

 But I can't see any reason this solves the problem.
Please find bellow the crash report provided par VS if it may help.

My system is .NET 3.5, Windows XP Pro French.
---------------------------------

System.NullReferenceException was unhandled by user code
  Message="La référence d'objet n'est pas définie à une instance d'un objet."
  Source="Telerik.Windows.Controls"
  StackTrace:
       à Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.<FindDropZones>b__2(HitTestResult el) dans c:\Builds\WPF_Scrum\Core_WPF_2009_Q2_SP1\Sources\Development\Core\Controls\DragDrop\RadDragAndDropManager.cs:ligne 1148
       à System.Windows.Media.Visual.HitTestPointInternal(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters hitTestParameters)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTest(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, HitTestParameters hitTestParameters)
  InnerException:

I am trying to show textbox in grid cell performing aggregate function.
These underneath Xaml show textboxes but while editing  value in textbox,textbox disappear on double-click and when done with editing it re-appear again.and aggregate functions seem to work sometime.

Please help me..hoe to achieve textboxes in a gridcell with aggrgate functionality for that datacolumn

  <telerik:GridViewDataColumn Header="Term Leased"  ToolTip="Term Leased" HeaderTextAlignment="Center" DataMemberBinding="{Binding TERM_LEASED}" IsReadOnly="False"  >
  <telerik:GridViewColumn.CellTemplate>
                                        <DataTemplate>
                                            <TextBox HorizontalAlignment="Center" VerticalAlignment="Top" Width="40" x:Name="TxtTermLeased" Margin="5,0" Text="{Binding TERM_LEASED}" >

                                            </TextBox>
                                        </DataTemplate>
                                    </telerik:GridViewColumn.CellTemplate>
                                    <telerik:GridViewDataColumn.AggregateFunctions>
                                        <telerik:SumFunction Caption="Term Leased: "  SourceField="TERM_LEASED" />
                                    </telerik:GridViewDataColumn.AggregateFunctions>
                                </telerik:GridViewDataColumn>

Is there a practical limit to the number of rows in a GridView? I tried putting 4k in and get a memory exception. If I limit to 1k rows it works but I can see the system memory take a steep rise each time I refresh the grid. I have a similar application in WinForms and I can load 4k rows easily with no impact on system performance.

I am attempting to create a Custom Item Template for my carousel that is bound to a datatable. The problem is that when I do the below XAML code, it displays System.DataRow.View or something like that instead of the actual data. I think it has something to do with not defining my data type. What should I put in the DataType property for my DataTemplate in the case that it is bound to a datatable?

Hi, I've been confused by a problem. First, I set RadGridView.ItemSource with a ObservableCollection and selected a row. Then I removed an item from ObservableCollection, the RadGridView.SelectedItem changed to null and did't trigger SelectionChanged Event. Is that by desgin? Thanks.

Version: Q2 2009.2.813.35

Hello,

Version: 2009.2.911.35 .

I defined three events:

RadGridView1_SelectionChanged
RadGridView1_MouseLeftButtonUp
RadGridView1_MouseUp

Because the "SelectionChanged" event, left click does not fire the other two events (only right click).

Is this by design ?

Thanks.

Hello,

I have a problem with exporting RadGridView using ToCsv() andToExcelML() methods.

While using AutoGenerateColumns property set to true everything works fine. 

However, when I'm trying to create columns in code in such a way:

with DataTemplate defined in XAML:

In this case everything looks fine and RadGridView displays columns properly, but ToCsv() methods creates a string consist only of white spaces.

Is there any solution to this problem?

Regards

Hi
I have a grid which I add rows to
when there is a vertical scroll
I want to see the added row
so I use
the problem is
when the grid does not  have scroll
after I add a row the grid scrolls down
although there is enugh place and no need to scroll
any idea?

Since RadWindow don't have closing event, how I can prevent closing a RadWindow? For instance prevent to close without save something.

Hi,
i'm  trying to bind a carousel with a CarouselDataRecordPresenter.

• When i'm binding with a datatable, it's OK ( detail code see 1))
• When i'm binding with an objet, the carousel have 2 elements but the property Lib of my object CarouselViewModel is not displayed ( detail code see 2).

     Remark:

     my visual Studio show me a error "Type or property expected " for the Data when i write the  Binding         Path=Data.CarouselViewModel.Lib

When i don't use the  CarouselDataRecordPresenter, the carousel displays 2 elements with the name of property (LIB) and its Value.
I tried other type of binding like Data[0] or Fields[Lib)..., but it doesn't work.  
What's wrong with my binding? 

Can you help me?

1) BINDING with DATATABLE
When i bind a carousel with a datatable , the carousel display the item of my row :
In my code behind :

DataTable

 

dt = new DataTable();

 

 

DataColumn dc = new DataColumn("Lib");

 

dt.Columns.Add(dc);

 

DataRow dr = dt.NewRow();

 

dr[

"Lib"] = "Item1";

 

dt.Rows.Add(dr);

dr = dt.NewRow();

dr[

"Lib"] = "Item2";

 

dt.Rows.Add(dr);

sampleRadCarousel.ItemsSource = dt;

In my Xaml :

 

 

<Style TargetType="{x:Type Controls:CarouselDataRecordPresenter}">

 

 

 

<Setter Property="Template">

 

 

 

<Setter.Value>

 

 

 

<ControlTemplate TargetType="{x:Type Controls:CarouselDataRecordPresenter}">

 

 

 

<StackPanel Margin="0,20,0,0" TextElement.FontWeight="Bold">

 

 

 

<Label Content="{Binding Path=Data[Lib]}"/>

 

 

 

<Label Content="test"/>

 

 

 

</StackPanel>

 

 

 

</ControlTemplate>

 

 

 

</Setter.Value>

 

 

 

</Setter>

 

 

 

</Style>

 

2) BINDING MODELVIEW
In code behind 

Collection

 

<CarouselViewModel> ListeCarousel = new Collection<CarouselViewModel>();

 

 

CarouselViewModel carouselview = new CarouselViewModel("item1");

 

ListeCarousel.Add(carouselview);

 

CarouselViewModel carouselview1 = new CarouselViewModel("item2");

 

ListeCarousel.Add(carouselview1);

sampleRadCarousel.ItemsSource = ListeCarousel;

In xaml :

 

 

<Style TargetType="{x:Type Controls:CarouselDataRecordPresenter}">

 

 

 

<Setter Property="Template">

 

 

 

<Setter.Value>

 

 

 

<ControlTemplate TargetType="{x:Type Controls:CarouselDataRecordPresenter}">

 

 

 

<StackPanel Margin="0,20,0,0" TextElement.FontWeight="Bold">

 

 

 

<Label Content="{Binding Path=Data.CarouselViewModel.Lib}"/>

 

 

 

<Label Content="2"/>

 

 

 

<Label Content="3"/>

 

 

 

</StackPanel>

 

 

 

</ControlTemplate>

 

 

 

</Setter.Value>

 

 

 

</Setter>

 

 

 

</Style>