I found an issue in our code that was incorrectly calling chart.Series.Clear() as well as clearing the ObservableCollection we use with the SeriesProvider.

This causes the following exception when the chart tries to redraw.

I've just switched from 2014 Q3 and this didn't cause any problems in that version.

Obviously this is quite simple once I found it and we shouldn't be manually changing the Series collection when using a SeriesProvider. But it wasn't easy to find when its built into a large application and the stack trace doesn't help much.

Would it be possible to silently cope with this, or perhaps throw an exception when accessing the Series if the graph is using a SeriesProvider, that would make it much easier to find the problem.

Heres a small project to show what happens. Just run it and click the button.

https://dl.dropboxusercontent.com/u/32945770/SeriesProviderError.zip 

Thanks,

Martin

Hi *,

I use a Chart Control (see below)

Items is a collection of Objects with different properties like X, Y, Z and each item has an Id.

My question is how can I get the value of the ID Property having a selected Item (DataPoint) by SelectedValue = "X"? 

All what I have is an object of type SelectionChangedEventArgs contains AddedPoints [SelectionChanged] but there I see only the values I render in the Chart.

Please help.

Thx

R

<telerik:ChartDataSource  x:Name="ChartDataSource1"                              ItemsSource="{Binding Items ... 

I cannot seem to figure out what this column is or how to get rid of it. There is a very narrow column that appears all the way to the left in the GridView by default. It has no content, but can be moved around in between the other columns. Can anyone help?

I've attached an image to explain what I am talking about. Here's my xaml for the GridView...

 <telerik:RadGridView x:Name="VariablesGridView"
                             ItemsSource="{Binding Sequence.Variables}"
                             CanUserSortColumns="False"
                             CanUserInsertRows="False"
                             AutoGenerateColumns="False"
                             RowDetailsVisibilityMode="VisibleWhenSelected"
                             ShowGroupPanel="False"
                             RowIndicatorVisibility="Collapsed"
                             SelectionMode="Multiple">
            <telerik:RadGridView.Columns>
                <telerik:GridViewDataColumn DataMemberBinding="{Binding Name}" Header="Name" IsReadOnly="False" IsFilterable="False"/>
                <telerik:GridViewDataColumn CellTemplate="{StaticResource VariableTypeTemplate}" Header="Type" IsReadOnly="False" IsFilterable="False"/>
                <telerik:GridViewDataColumn DataType="system:Object" DataMemberBinding="{Binding Value}" Header="Value" IsReadOnly="False" IsFilterable="False"/>
            </telerik:RadGridView.Columns>

            <telerik:RadContextMenu.ContextMenu>
                <telerik:RadContextMenu x:Name="VariablesContextMenu"
                                                ItemContainerStyle="{StaticResource RadMenuItemStyle}"
                                                Opened="ContextMenu_Opened"
                                                IconColumnWidth="0"
                                                ItemClick="ContextMenu_ItemClick" />
            </telerik:RadContextMenu.ContextMenu>
            
        </telerik:RadGridView>

How can I make the PropertyGridPresenter use physical vertical scrolling rather than logical scrolling over each property? My problem is that I have a custom editor template which takes up a large amount of vertical space, and I need to be able to scroll vertically through the template.

The attached image shows my RadPropertyGrid with an Editor Template that takes up a large amount of vertical space. As you can see, the bottom of the template is cut off.

Thanks

Hi,

Is there a way to handle multi selection in the RadTileList ?

 Thanks, Rémi.

Hello

Im working with TreeView and I have a little problem when a property changed and the value propagation. I attached a photo for show it better.

I will try explain:

If I change "Status" property to a parent node, this new "Status" is propagated to its  children. For example, I change to RIB2 node "Status" to disable(Gray), all children of RIB2 will change their "Status" to disable. Or I change "Status" to R2FFA node, this change will only affect to that node becouse it is last one.

 The problem I have is propapage the "Status" of a child node to parent node. The "Status" property is calculated in all parent nodes, I mean, that property comes from "Status" of subnodes, only last children nodes, have the value of "Status".

Any parent node has representable point,  so always calculate "the Status". Get_Child_Status will return a enum value or null.If all children have the same "Status" it will get that status, if at least one child, has different status from the rest, that method will return null.

Then, how can I propagate to parent node updateproperty when, child node property has changed?

Thank you for help!

Regards!

Hello,

I needed to handle alert positioning in a dual monitor setup and I was looking at this thread: http://www.telerik.com/forums/alert-position-on-dual-monitor-setup

Is it possible to set the alert offsets without needing to create another instance of RadDesktopAlertManager? I didn't want to have to drop any alerts that the user didnt handle (this.Manager.CloseAllAlerts(); on the example), and it seems there's no way to move alerts from one manager to another while retaining its position (as the user is free to move alerts around).

I just upgraded to latest release (2016.1.112) and it looks like the Expander's icon does not follow alignment anymore. Expander expands to left and there's no header text, just the icon and vertical header alignment is set to "Center". Is this a new bug since it worked before upgrade?

Thanks,

Juha

Can someone please explain why i cant see the pishpin?