Questions on UI for WPF Forum

1 answer

73 views

To display dotted lines using LineSeriesDefinition

Hi;
We have an unsual requirement that using line series defination
We have to display half line solid and towards end dotted line
as shown in the attachment.
Please let me know how can i achive this functionality as
we have a client demo on 2/11/11

Chart

answered on 01 Nov 2011

1 answer

198 views

Rendering Shapes is SLOW

Hey, I've implemented a DynamicLayer and it uses an indexed Spatial DB as its source. It's fast to grab shapes from the DB, its reasonably fast to convert them into Telerik map elements with a SqlGeospatialDataReader, however when it comes to the UI drawing them, its terribly slow...

I'm zoomed in really far, I don't let it render until zoom level 16. I have to believe the number of shapes I have to render on screen at a time is not too much more than your shape file examples. My shapes are most likely quite a bit more complex, but the performance is just so absolutely terrible. I have to believe I'm not doing it right. Your rendering of tiles is quite a bit faster than other comparable WPF map products, IMO, but rendering vectors, even small amounts of them, is just about the worst of any product out there. Please help. I need something that can do both reasonable well.

Thanks

Map

answered on 01 Nov 2011

1 answer

65 views

Problems with Q2 2011

Hi,

After upgrading from Q1 2011 to Q2 2011, I can no longer build my program. I receive multiple errors that say "Set property, 'Telerik.Windows.Controls.LocalizationManger.ResourceKey' threw an exception."

The innerexception detail is: {"Object of type 'System.Windows.Setter' cannot be converted to type 'System.Windows.DependencyObject'."}

Any ideas what has changed in between the two versions that can cause this problem?

General Discussions

answered on 01 Nov 2011

2 answers

212 views

RadTreeListView expander button issue

Hi,

I am using a RadTreeListView and want to change the rowstyle of the TreeListViewRow. I was able to achieve this using Blend but when I applied the new rowstyle into my radtreelistview somehow the expander button is not working as expected even if I didn't change anything to my new style. When I collapsed an expanded row and then expand it again, the expander button appears even if a row is not a parent. And also all the expander buttons now stays on the left hand side even if the row is indented.

Steps to reproduce:
1. Add new style to RadTreeListView rowstyle (I copied the TreeListViewRow style using Blend 4)
2. Expand/collapse a parent row then expand again

Please help.

Thanks in advance,
Jo

TreeListView

answered on 01 Nov 2011

5 answers

102 views

Align aggregated results with related columns

Hi,

How can I align results of aggregated functions to columns in table? In my particular case I have GridView with columns for each hour (H1-H24) and few other columns like City, Country, etc. User is able to group data by City and Country column. When grouping is on I would like to display in group header result of aggregated sum function fore each hour column H1-H24, and I have to huge problems:

Results width is much bigger then whole GridView width.
Results aren't aligned with related columns in GridView.

How can I solve this two problems?

Regards,
MC

GridView

answered on 01 Nov 2011

3 answers

270 views

Can not leave cell with validationerror

Hello!

We want to implement validation in the Wpf RadGridView in such a way that the user can leave a cell that contains an error,
the cell should still display the invalid input, and still display the red error-border.
This is the normal behaviour for ordinary Wpf-controls, but a Grid cell seems to force the user to correct the input before she can continue.

regards
Stefan Wimo

GridView

answered on 31 Oct 2011

1 answer

114 views

FIFO Chart

Hi,

I'm binding a chart to an observable collection that is updated every second. This all works great, but I only want to show 10 minutes of data. That's why I want to have a FIFO (First In, First Out) chart where the oldest data begins drops off (1 second at a time) when the 10 minute mark is hit. I can remove the items from the collection without a problem, but the datapoints remain on the chart. Any way to remove specific datapoints?

Chart

answered on 31 Oct 2011

7 answers

604 views

Export to Word, Excel and Csv with RadGridView for WPF

You provide a nice, complete sample of using the new export extentions for silverlight in:

http://blogs.telerik.com/vladimirenchev/posts/09-01-22/Export_to_Word_Excel_and_Csv_with_RadGridView_for_Silverlight.aspx

Do you have a sample of the same for WPF?

I manage to generate the html from the gridview, but embedding this in an actual .xls or .doc file is beyond me.

Thank you for any help!

-Tomas

GridView

answered on 31 Oct 2011

0 answers

45 views

ObservableCollection and databinding - Can't make it work

Please ignore my question.
It was nothing to do with Telerik controls...

GridView

asked on 31 Oct 2011

5 answers

159 views

Exception when removing last item of RadGridView with RowDetailTemplate

Hi,

I have a grid view that specifies a RowDetailTemplate, something simple, like an empty grid. Whenever I populate the ObservableCollection which is bound to the ItemsSource property of the grid, everything works fine, and the grid contains the data. I can remove one element at a time, no problems. Whenever I try to .Clear() the collection or .Remove() the last element, BOOM!, Object Ref Not Set...If I take off the RowDetailsTemplate, I can remove all items without exceptions. Has anyone found a work around for this bug in the GridView? I really need to remove all items and still have the Row Details. Thanks for any suggestions!

GridView

answered on 31 Oct 2011