I have a WPF app using MVVM design pattern.
as I am testing for memory growth, I have come across memory leak. I have been trying to fix for days without success. If possible someone can point out the issue.

after opening few windows and closing them, the memory grows, and the objects are still hanged in the memory.
this is for my windows:

I got this. if it can be helpful

as you noticed in the last details, it says 3 objects after opening the window and closing for three times. I have spent quite long time trying to figure out what is going on, but I couldn't. I worked on different screens with RadGridView and pretty much same controls and there is no problem. Did I miss out anything?
If you need further details, let me know
FYI: when RadGridView is commented out, there is no problem

We're using Telerik.WPF.UIControl_2015Q2 for .NET Framework 4.0

Thank you

Hi,

If two unpinned panes are next to each other in our mainWindow like shown in this example:
https://github.com/telerik/xaml-sdk/tree/master/Docking/OrderedUnpinnedPanes

In this if pane1 and pane2 both are in unpinned state, and inside pane1 if some button activates the pane2 and tries to bring it to the front, it fails.
Because in the time during which pane2 tries to come in the view during that pane1 is just going back to inActive autohidden state due to whichpane2 couldn't come in the view.

Can you please suggest me a solution for this problem. 
I need to fix this issue urgently.

Thanks

Hi,

I'm following the example of RestoredTilesToSpanMultipleRowsAndColumns_WPF on the provided developer examples and i have stumbled upon 2 problems:

1. This example doesn't work without defining the RowsCount, i.e., trying to use an infinite number of rows:

Error:

 2. Using this template, doesn't allow loading on an Window_LoadedEvent:

Result:

When i remove the template from the radtileview, both problems  disappear, but i cannot define the placement of items, i.e., Row, RowSpan, Column and ColumnSpan don't work anymore:

Example 1:

Result:

I can surpass this problem by using Position property of radtileviewitem, but there is a problem when an item's size is bigger, i.e., when i want an item to either span more than 1 row/column.

In resume, i need a way to either use the Multicolumns template with infinite rows, or a way to continue without the template but being able to define the position of each item, even when an item occupies more than 1 row/column.

Can anyone help me?

Regards

I'm trying to enable or disable the whole menu based on a value of a variable (i.e., SomeVariable). However, when using Style (in the following xaml) with telerik:RadMenu, the whole menu disappears?

<telerik:RadMenu.Style>
    <Style TargetType="telerik:RadMenu">
        <Setter Property="IsEnabled"  Value="False" />                                                    
        <Style.Triggers>                                                        
           <DataTrigger Binding="{Binding SomeVariable}"  Value="Draft"> 
                 <Setter Property="IsEnabled"  Value="True" />                                                        
           </DataTrigger>                                                    
        </Style.Triggers>                      
     </Style>                                                                                            
</telerik:RadMenu.Style>

Thank you

If the map background is bound to a property that has no initial value, the map will ignore the mouse unless using a child control. I only found one mention of anything simliar to this: https://arstechnica.com/civis/viewtopic.php?t=83073

I have many columns in the GridView. It works fine. But when I apply the filters in each column, the headers are not showing.

The header cells seem to be wrapped(Vertical height becomes big)

I tried to set the column's width as star or a fixed value. The filter icons are showing. By the way I set the header text wrapping. It seems no space to place the headers unless I remove some columns.

Any idea?

Hi,

I've an error on a gridview when I try to filter column. This is my code:

        private void SetFilter()
        {
            log.Debug("Start function SetFilter()");
            rgvMain.FilterDescriptors.Clear();

            CompositeFilterDescriptor compositeDescriptor = new CompositeFilterDescriptor();
            compositeDescriptor.LogicalOperator = FilterCompositionLogicalOperator.And;

            if (!string.IsNullOrEmpty(txtfilterCode.Text))
            {
                compositeDescriptor.FilterDescriptors.Add(new Telerik.Windows.Data.FilterDescriptor("LAB_CODE", Telerik.Windows.Data.FilterOperator.Contains, txtfilterCode.Text));
            }
            if (!string.IsNullOrEmpty(txtfilterDescr.Text))
            {
                compositeDescriptor.FilterDescriptors.Add(new Telerik.Windows.Data.FilterDescriptor("LAB_DESCR", Telerik.Windows.Data.FilterOperator.Contains, txtfilterDescr.Text));
            }

            //add all filter to radgrid
            rgvMain.FilterDescriptors.Add(compositeDescriptor);
            log.Debug("End function SetFilter()");
        }

This is the StackTrace:

   at Telerik.Windows.Data.Expressions.EnumerableFilterOperatorExpressionBuilder.GenerateContainsMethodCall(Expression source, Expression value, Boolean shouldNegate)
   at Telerik.Windows.Data.Expressions.EnumerableFilterOperatorExpressionBuilder.GenerateContains(Expression left, Expression right)
   at Telerik.Windows.Data.Expressions.FilterOperatorExpressionBuilderBase.CreateExpression(Expression left, Expression right)
   at Telerik.Windows.Data.Expressions.OperatorValueFilterDescriptorExpressionBuilderBase.CreateBodyExpressionThreadSafe()
   at Telerik.Windows.Data.Expressions.OperatorValueFilterDescriptorExpressionBuilderBase.CreateBodyExpression()
   at Telerik.Windows.Data.FilterDescriptor.CreateFilterExpression(ParameterExpression parameterExpression)
   at Telerik.Windows.Data.FilterDescriptorBase.CreateFilterExpression(Expression instance)
   at Telerik.Windows.Data.Expressions.FilterDescriptorCollectionExpressionBuilder.CreateBodyExpressionThreadSafe()
   at Telerik.Windows.Data.Expressions.FilterDescriptorCollectionExpressionBuilder.CreateBodyExpression()
   at Telerik.Windows.Data.CompositeFilterDescriptor.CreateFilterExpression(ParameterExpression parameterExpression)
   at Telerik.Windows.Data.FilterDescriptorBase.CreateFilterExpression(Expression instance)
   at Telerik.Windows.Data.Expressions.FilterDescriptorCollectionExpressionBuilder.CreateBodyExpressionThreadSafe()
   at Telerik.Windows.Data.Expressions.FilterDescriptorCollectionExpressionBuilder.CreateBodyExpression()
   at Telerik.Windows.Data.Expressions.FilterExpressionBuilder.CreateFilterExpression()
   at Telerik.Windows.Data.QueryableExtensions.Where(IQueryable source, CompositeFilterDescriptorCollection filterDescriptors)
   at Telerik.Windows.Data.QueryableCollectionView.CreateView()
   at Telerik.Windows.Data.QueryableCollectionView.CreateInternalList()
   at Telerik.Windows.Data.QueryableCollectionView.get_InternalList()
   at Telerik.Windows.Data.QueryableCollectionView.get_InternalCount()
   at Telerik.Windows.Data.QueryableCollectionView.get_IsEmpty()
   at Telerik.Windows.Data.DataItemCollection.get_IsEmpty()
   at Telerik.Windows.Controls.GridView.BaseItemsControl.OnItemsCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Controls.GridView.GridViewDataControl.OnItemsCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Controls.DataControl.OnItemsCollectionChangedDispatch(Object sender, NotifyCollectionChangedEventArgs e)
   at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Data.DataItemCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Data.DataItemCollection.OnCollectionViewCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Data.Listener`2.ReceiveWeakEvent(Object sender, TArgs args)
   at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
   at Telerik.Windows.Data.QueryableCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
   at Telerik.Windows.Data.QueryableCollectionView.RefreshOverride()
   at Telerik.Windows.Data.QueryableCollectionView.RefreshOrDefer()
   at Telerik.Windows.Data.QueryableCollectionView.InvalidatePagingAndRefresh()
   at Telerik.Windows.Data.QueryableCollectionView.OnFilterDescriptorsChanged()
   at Telerik.Windows.Data.QueryableCollectionView.OnFilterDescriptorsCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
   at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
   at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Data.RadObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
   at Telerik.Windows.Data.RadObservableCollection`1.InsertItem(Int32 index, T item)
   at Telerik.Windows.Data.FilterDescriptorCollection.InsertItem(Int32 index, IFilterDescriptor item)
   at System.Collections.ObjectModel.Collection`1.Insert(Int32 index, T item)
   at System.Collections.ObjectModel.Collection`1.System.Collections.IList.Insert(Int32 index, Object value)
   at Telerik.Windows.Data.CollectionHelper.Insert(IList target, IEnumerable newItems, Int32 startingIndex, IEqualityComparer itemComparer)
   at Telerik.Windows.Data.ObservableCollectionManager.HandleCollectionChanged(IList sender, NotifyCollectionChangedEventArgs args)
   at Telerik.Windows.Data.ObservableCollectionManager.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs args)
   at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
   at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
   at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Data.RadObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
   at Telerik.Windows.Data.RadObservableCollection`1.InsertItem(Int32 index, T item)
   at Telerik.Windows.Data.FilterDescriptorCollection.InsertItem(Int32 index, IFilterDescriptor item)
   at System.Collections.ObjectModel.Collection`1.Add(T item)
   at FOX.Module.CommonSearchModules.SupplierPopup.SetFilter() in D:\FOX\Amplifon Fox\New Zealand\Releases\0.16.0\FOX.Module.CommonSearchModules\PopUp\SupplierPopup.xaml.cs:line 274
   at FOX.Module.CommonSearchModules.SupplierPopup.btnSearch_Click(Object sender, RoutedEventArgs e) in D:\FOX\Amplifon Fox\New Zealand\Releases\0.16.0\FOX.Module.CommonSearchModules\PopUp\SupplierPopup.xaml.cs:line 101

Hello,

is it possible to set different VerticalAlignment-Properties for RadPanelItems in a RadPanelBar?

I want to vertical align the first item to top (fixed height) and then the second item to stretch with the User Control.

I tried this solution, but it won't work: