or
3 answers
216 views
Hello,
When I put the RadTileView in a wpf UserControl I'm getting the following error message in the designer.
Object reference not set to an instance of an object.
at Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.FindRootVisual() at Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.Initialize() at Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.OnAllowDragChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e) at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e) at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e) at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args) at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, OperationType operationType) at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, OperationType operationType, Boolean isInternal) at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value) at Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.SetAllowDrag(DependencyObject obj, Boolean value) at Telerik.Windows.Controls.RadTileViewItem.OnApplyTemplate() at System.Windows.FrameworkElement.ApplyTemplate() at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Canvas.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint) at System.Windows.Controls.ItemsPresenter.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Control.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV) at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV) at System.Windows.Controls.Grid.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint) at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Border.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Control.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at MS.Internal.Designer.SimpleViewManager.DesignerBackground.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Decorator.MeasureOverride(Size constraint) at Microsoft.Windows.Design.Interaction.DesignerView.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at MS.Internal.Designer.Viewport.MeasureOverride(Size availableSize) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint) at System.Windows.Controls.ScrollContentPresenter.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV) at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV) at System.Windows.Controls.Grid.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.ScrollViewer.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Grid.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint) at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Control.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Interop.HwndSource.SetLayoutSize() at System.Windows.Interop.HwndSource.set_RootVisualInternal(Visual value) at System.Windows.Interop.HwndSource.set_RootVisual(Visual value) at MS.Internal.Designer.VSIsolatedDesigner.ViewHolder.Initialize() at MS.Internal.Designer.VSIsolatedDesigner.ViewHolder..ctor(UIElement content) at MS.Internal.Designer.VSIsolatedDesigner.VSIsolatedView.get_ViewHandle() at MS.Internal.Host.Isolation.IsolatedView.get_ViewHandle() at MS.Internal.Designer.DesignerPane.LoadDesignerView()
Thanks much
Boots
Miroslav
Telerik team
answered
on
10 Oct 2009
7 answers
167 views
Every time I attempt to view the demo of the WPF Carousel object, I receive an Fatal Error with a massive message box, chock full of error text....any thoughts of how to fix this? I really to need to demo this control.
Jose Simas
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Rank 2
answered
on
09 Oct 2009
2 answers
98 views
Hello All,
This is an indirect bug that may not show up on the first time. Basically, I have traced a "Dispatcher.VerifyAccess" violation to the FrameworkElementExtensions class. This issue came about while my code was updating an ObservableCollection that the RadGridView.ItemsSource was bound to. Since I can't intercept the update to the RadGridView, the "Dispatcher.CheckAccess()" would have to happen in the Telerik code. So, either this check happens in the FrameworkElementExtensions class, or somewhere in the RadGridView class, say in the GridViewDataControl.OnCollectionViewCollectionChanged() method.
- Rashad Rivera
omegusprime.com
Rashad Rivera
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Rank 1
answered
on
09 Oct 2009
3 answers
167 views
Ok I have a cool idea but I don't know if I can pull it off...
I have a chart for a dashboard that displays metrics data in a stack for every day of the current week.
I load all of the days of the week except for the current day using a query into an archive data warehouse table.
I pull the current days data from current tables.
This works well but my goal is to display this data on a dash console in the office and update the chart every 15 seconds.
I only want to update the current day's bar though.... I don't want to refresh the whole control.
i.e.
if today is Tuesday I want to display Sat, Sun, Mon, Tue values but I want to refresh Tue every 15 seconds and only re-paint the bars for Tuesday.
Is this possible?
Thanks,
Tim
Velin
Telerik team
answered
on
09 Oct 2009
6 answers
352 views
Can you shed any light on what would cause this issue? Typically, it will happen when I group or when I try to sort on a column.
I'm using the grid to display a set of search results, 10 columns in total. There will be duplicate values in some columns as some identifiers (customer / transaction IDs, etc) may appear multiple times. The grid is bound via MVVM to an ObservableCollection of objects via the DataContext. The columns are set up as attributes of those objects on first bind of the DataContext.
The data comes up fine on first load; then has issues when we sort or group.
I'm using the grid to display a set of search results, 10 columns in total. There will be duplicate values in some columns as some identifiers (customer / transaction IDs, etc) may appear multiple times. The grid is bound via MVVM to an ObservableCollection of objects via the DataContext. The columns are set up as attributes of those objects on first bind of the DataContext.
The data comes up fine on first load; then has issues when we sort or group.
Hristo
Telerik team
answered
on
09 Oct 2009
1 answer
113 views
I cannot see any way of selecting multiple items programmatically only single items. I am asking as I have a need to automatically refresh the grid but keep a users selections that they may be working on at the time.
Milan
Telerik team
answered
on
09 Oct 2009
1 answer
158 views
Any plans to allow floating panels to move outside the bounds of the main window?
-Terry
-Terry
Kaloyan
Telerik team
answered
on
09 Oct 2009
1 answer
243 views
Is there a way, in XAML, to cause the tab item headers to stretch across the width of the tab control.
For example, I have three tabs, red, blue and green. I have a tab control with it's width set to auto, the tab headers will only fill up part of the space above the tab content, I want them to fill up all the space.
More specifically if I have 4 tabs I want last tab to take up the remaing space.
Dimitrina
Telerik team
answered
on
09 Oct 2009
2 answers
115 views
Hello again,
I have another anoying bug in the GridView! With the following grid's XAML code:
When I start editing a row, everything is fine until I hit the "enter" key!
Then, the RowEditEnded event is launched as expected but when it ends, the row stay in edit mode! As long as I use the "enter" key, it will stop the edition mode and worse: it will relaunch each time the RowEditEnded event with a strange behavior because de e.newData stays the same as the first time the event was launched (even if data was modified before hitting "enter" key).
The only way to get out of this is to click anywhere else (wich launches also the RowEditEnded).
I don't know if it is normal, but I would expect the grid to stop editing the row when hitting "enter".
Is there any workaround?
Thanks,
Daniel
I have another anoying bug in the GridView! With the following grid's XAML code:
| <telerik:RadGridView Grid.Row="1" Margin="0,5,0,5" Name="rgvAdministrativeAgent" xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" SelectionChanged="rgvAdministrativeAgent_SelectionChanged" AutoGenerateColumns="False" RowEditEnded="rgvAdministrativeAgent_RowEditEnded" ValidationMode="Row"> |
| <telerik:RadGridView.Columns> |
| <telerik:GridViewDataColumn Header="Name" DataMemberPath="Name" /> |
| <telerik:GridViewDataColumn Header="Abbreviation" DataMemberPath="Abbreviation" /> |
| </telerik:RadGridView.Columns> |
| </telerik:RadGridView> |
When I start editing a row, everything is fine until I hit the "enter" key!
Then, the RowEditEnded event is launched as expected but when it ends, the row stay in edit mode! As long as I use the "enter" key, it will stop the edition mode and worse: it will relaunch each time the RowEditEnded event with a strange behavior because de e.newData stays the same as the first time the event was launched (even if data was modified before hitting "enter" key).
The only way to get out of this is to click anywhere else (wich launches also the RowEditEnded).
I don't know if it is normal, but I would expect the grid to stop editing the row when hitting "enter".
Is there any workaround?
Thanks,
Daniel
Daniel Nevers
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Rank 1
Rank 1
answered
on
09 Oct 2009
3 answers
170 views
<TabItem.header>
<textBlock>ABC</textBlock>
</TabItem.Header>
When I am modifying Header template like this then it's not raising tab click event but when I click somewhere to end corners of tabheader.Event fires.I think It is something related with bubble events Which is not working when modifying header.
Please help me for this.
<textBlock>ABC</textBlock>
</TabItem.Header>
When I am modifying Header template like this then it's not raising tab click event but when I click somewhere to end corners of tabheader.Event fires.I think It is something related with bubble events Which is not working when modifying header.
Please help me for this.
Kiril Stanoev
Telerik team
answered
on
08 Oct 2009
