I'm trying to write a custom drag drop behaviour, and as I understand it I start by deriving a class from Telerik.Windows.Controls.DragDropBehavior. The problem is Telerik.Windows.Controls doesn't seem to contain the class DragDropBehavior. Have I completely misunderstood something?

Good day,

I'm wondering how can I fix wrong positioning (you can see how does it look right now in attached picture) of RadDiagramShapes in TreeDown? When I have like 5 nodes it works quite OK. But when i have let's say 90 nodes it becomes a mess.

I use this code after i fill RadDiagram with shapes and after i connect them with each other.


I have only one root and I have already tried with positioning root shape on some position. Also i tried to fit layout after each diagram was put on diagram.

Thanks for your help.

Regards,

Gregor

Hello,

I have some problems with controls which inherit from Telerik Control like RadOutlookBarItem, RadRibbonTab...

When I try to switch the style at runtime (merging of xaml dictionaries), the style is not changed.

When there are no inheritance, it works great.

How can I solve that ?

Thanks in advance.

Geoffrey

Hello,
I want implement a GridView with the funcionality of add new entries on specific positions. For sample, the grid will be loaded with five static rows, and the user just can add a new row above it. This way, the new row created by the user can be deleted or a new row can be added above it again. So, basically is this: the pre-loaded rows are statics, can´t be deleted, and the new rows can be deleted or a new row can be created above it.
How could I create a new row always above other row? In the nameOfGrid.BeginInsert() method the new row is created on the bottom of grid. 

I´ve attached two images to demonstrate the desired behavior. The first one shows the static rows pre-loaded, just with the option to add a new row. The second shows a new row created on the bottom of grid, with the option to add and remove a row. 

Thanks in advance,

Thiago

Hello,

I need the filtered and sorted results from a RadGridView Control. RadGridView.Items contains the sorted/filtered/etc. data as DataItemCollection but I wonder if I could get the results as IEnumerable<T> and not as DataItemCollection. I need to have this because I am bound to a specific API.

I know I could cast it using RadGridView.Items.Cast<SpecificType>(); but I do not know the specific type because it is determined at runtime.

Thanks in advance

Hi,
Can you please point me to an example of a RadTreeView inside of RadComboBox?
Is there an equivalent of RadDropDownTree in WPF?
Thank you.

I'm using a RadGridview with 2 columns of GridViewDataColumns and DataTemplate (TextBox, ComboBox). I need 2 tab switches to select the control of the cell.
How can I change it to 1 tab?

I am using the PanelBar to display a two level hierarchy of menu items (Menu Sections and Menu Items). I am using a DataTemplate for the menu items and a HierarchicalDataTemplate for the root collection of menu sections. The binding is all working correctly. My problem arose when I attempted to make use of the SelectedItem Property on the PanelBar. When I bound the property to my view model (using either TwoWay or OneWayToSource) when expanding or collapsing the headers, a red border appears around the PanelBar. The animation becomes a little sluggish as well but I can live with that.

If I select one of the items the red border disappears - it will re-appear if I expand or collapse the header.  If I simply remove the binding or set the binding to OneWay the red border does no appear.

With the binding set to TwoWay or OneWayToSource the view model is updated correctly. Any other binding mode results in no update of the view model.

The appearance of the red border will be unacceptable to my client and I would really appreciate any help with how I can get it so stop appearing.

Here are snippets of my XAML:

Hi,

I'm trying to get the position of a context menu relative to his placement target by using MousePosition property and there is an issue.

Here's what I have :

<telerik:RadContextMenu>
    <telerik:RadMenuItem Header="Add item" Command="{Binging AddItemCommand}" CommandParameter="{Binding MousePosition, RelativeSource={RelativeSource FindAncestor, AncestorType=telerik:RadContextMenu}}"/>
</telerik:RadContextMenu/>

When I click on "Add Item", the position that I received in the viewModel is (Double.NaN, Double.Nan), so I conclued that the value of MousePosition is updated after the evaluation of the bindings. Is there another way to get the MousePosition of the contextMenu that would works with MVVM ?

Thank you,

Etienne

Hi,

I have a RadTreeView where data is populated from an xml using XmlDataProvider.  I would like to bind the SelectedItem of TreeView to a ViewModel property of type string. When I do the binding using SelectedItem={Binding mydata}", the value mydata is set to System.Xml.XmlElement type.

I was able to find the logic to get the exact value. For testing purpose, I created a new TextBox control to retreive the exact selected data.

 <TextBox  DataContext="{Binding ElementName=ReportersTreeView, Path=SelectedItem}" Grid.Row="6"   Text="{Binding XPath=@Name}"></TextBox>

However in real scenario, I don't need this TextBox. 

I want to know how can I integrate this code to my tree view control such that XPath=@Name is correctly retrieved from SelectedItem  and set to my viewmodel property?

Below is my TreeView control and my Template.

 <HierarchicalDataTemplate x:Key="NodeTemplate">
            <TextBlock x:Name="tb"/>
            <HierarchicalDataTemplate.ItemsSource>
                <Binding XPath="child::node()" />
            </HierarchicalDataTemplate.ItemsSource>
            <HierarchicalDataTemplate.Triggers>
                <!--<DataTrigger Binding="{Binding Path=NodeType}" Value="Text">
                    <Setter TargetName="tb" Property="Text" Value="{Binding XPath = @name}"></Setter>
                </DataTrigger>-->
                <DataTrigger Binding="{Binding Path=NodeType}" Value="Element">
                    <Setter TargetName="tb" Property="Text" Value="{Binding Path=Attributes[Name].Value}"></Setter>
                </DataTrigger>
            </HierarchicalDataTemplate.Triggers>
        </HierarchicalDataTemplate>
        <XmlDataProvider x:Key="ReportersDataProvider" Source="ProbesTree.xml"
                         XPath="*">

 <telerik:RadTreeView Grid.Row="2"  IsDragDropEnabled="True" Name="ReportersTreeView"  SelectionMode="Single" IsSingleExpandPath="False" IsLineEnabled="True"   AutomationProperties.AutomationId ="ReportersTreeView" VerticalAlignment="Stretch"
                ItemTemplate= "{StaticResource NodeTemplate}" ItemsSource="{Binding Source={StaticResource ReportersDataProvider}}"  VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch"/>

Please help.!!!!

Thanks,
Divya