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2 answers
125 views

I am using WPF MVVM and have used the HierarchicalDataTemplate to bind my hierichical data to my RadTreeView. However I am having performance issues. There is a large amount of data that needs to be bound and its not efficient to load all the data and then attempt to use LoadOnDemand as a means to improve the performance. I basically need to load the child items of the current item only once the expander is expanded. For each item I know whether it has children from a property that is returned with the data so I need in some way to have the expander indicate that there are children by using this property without the data preloaded and only when the expander is clicked must it go and load its children.

I have tried to get the data for two levels so that the expander appears however this is not ideal and impacts on performance. Thanks for your help.

Tina Stancheva
Telerik team
 answered on 16 Aug 2011
1 answer
120 views
I'd like to have the contextual tabs flow into the window's header bar like in excel 2010 (see attached screenshot) but I have no sense of an idea how to do this with the telerik controls.

Can anybody put me in the right direction? I know that Infragistics and others support something similar but since we transitioned over to telerik I 'd like to use the telerik ribbon controls for something like this.


Tina Stancheva
Telerik team
 answered on 16 Aug 2011
2 answers
88 views
I am trying to build a hiearchical chart and have the following code:

<Telerik:RadChart Height="350" x:Name="WeightChart" Width="750">
    <Telerik:RadChart.HierarchicalViewDescriptors>
        <Telerik:ChartHierarchicalViewDescriptor>
 
        </Telerik:ChartHierarchicalViewDescriptor>
    </Telerik:RadChart.HierarchicalViewDescriptors>
</Telerik:RadChart>

And I get the following error message: 

The tag 'ChartHierarchicalViewDescriptor' does not exist in XML namespace 'clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Charting'

I looked in your documentation and it is included in that namespace.
Giuseppe
Telerik team
 answered on 16 Aug 2011
5 answers
498 views
Because I got stuck I looked at the following example:

http://www.telerik.com/community/forums/wpf/gridview/copying-cell-content-problem.aspx

Using that example: When I go into edit mode for a cell, I can copy the cell's content. When I only select the cell without going into edit mode (still seeing a selection rectangle), it is called three times and in the end copies the entire row to the clipboard.

However, what I want is to copy only the current cell's content to the clipboard without having to go into edit mode (my grid happens to be read only). Bonus: can I get a context menu over the cell for copy? (without too much effort)

Thanks,
 Chris
Christoph
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Rank 1
 answered on 16 Aug 2011
1 answer
62 views
Hi, I would like to know on how to hide the Timeline, Day and Month Views on the ScheduleView having only the Week View as shown. Thanks


Ayana
Kristian
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Rank 1
 answered on 16 Aug 2011
8 answers
143 views
Hi,
I have a question. Why don't the panes with auto hide set on, hide themselves if they have been clicked? A good example is the Telerik Controls Example for Docking. The example called "Unpinned Panes" allows you to hover over different unpinned panes, they animate open and as you move from one pane to the other, other panes open and close as expected. BUT, if you happen to click on one, even moving the mouse to the HostDocument, the panes will no longer auto hide.

This is frustrating, because all 'users' will intuitively click an unpinned menu, perform an action, then click on the Host Document to continue working, even clicking it, but the pane won't auto hide anymore.

Is this a bug, or by design? I hope it's not by design, because it makes using unpinned panes, well... a pain! (pun intended)

Thanks
John
Top achievements
Rank 1
 answered on 15 Aug 2011
3 answers
333 views
Hi,

In the custom hierarchy demo it shows how to show and hide the expand button during row loaded event. My question is if the users are able to add and remove child rows though the user interface after the gridview is loaded and I don't want to display the expand button if there are no child rows, is there a way to achieve it? 

Thanks.
Vanya Pavlova
Telerik team
 answered on 15 Aug 2011
1 answer
634 views
I'm trying to automatically select the crop tool when an image is loaded. All is ok if I preload the image, but if I allow the user to select the image, I can't seem to find the event that is called after I load up the image to load the tool.

It's probably right in front of me.

Thanks

-Matt
Iva Toteva
Telerik team
 answered on 15 Aug 2011
1 answer
187 views
Hi team,
           Actually my requirement is this. I have a set of resources bound to the RadScheduleView. I just want to change the mothview background color based on the resource and number of appointments booked for the day for the particular resource. If no of appointments is below 10 I want to change the monthviewitem background to green and if exceeds 10 it should be red in color. In
RadScheduler I used TimeSlotTemplateSelector to acheive this. I dont know how to do this in scheduleview. Any help....
This is the screenshot...
I marked the area where the background need to be changed...The empty slots are in brown. The slot which has less than 10 appointments are in green and more than 10 appointments are in Red.


Konstantina
Telerik team
 answered on 15 Aug 2011
1 answer
44 views
Hi,

Have just upgraded to 2011.2.712.35 and discovered that when I change the content for a grid view by assigning the ItemsSource value, it now collapses all expanded groups. Previously, it would remember which groups the user had expanded and expand them to look the same with the new data.

Is there anyway to configure the behaviour to be like the earlier versions or do I need to go back to 2011.1.419.0.

Best regards,

Russell
Vanya Pavlova
Telerik team
 answered on 15 Aug 2011
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