I have a radgrid that I am working on for a client that contains about 15 columns and at times upwards of 8k rows.

The crux of my situation lies in re-generating the collection that is the ItemsSource to the RadGrid.  On first load the data comes back (1000 records at a time) and loads into the grid smooth with everything operating as desired.  Now if I go and retrieve the exact same data set (or a different one) using the same call and getting the data 1000 records at a time...the loading dialog that I have in place freezes each time a new batch of 1000 records returns, presumably because the data is being drawn in the grid.

Keep in mind that during load the visibility of the grid is set to collapsed as I was trying to optimize performance when I realized that the true issue seems to be that after initial load the virtualization turns off and the subsequent loads then draw every item returned which is less then pretty.

Any thoughts/ideas would be welcome thanks!

Sorry I cannot provide the code and at this moment do not have time to write a demo, but the main issue here is that first load is GREAT!...any load there after unless you restart the app is slower when iteratively populating the collection the ItemsSource is 'OneWay' bound to.  And all styles being used for cells are implicit as to prevent each cell needing special treatment.

There is this odd dot displayed above the progress bar as can be seen in the attached screenshot. Does it have any significant meaning or is it just a bug?

Running Win8 64, Vs2012 and latest Telerik WPF.

Hello,
the title bar says it all!

To reproduce:
1. Create a new WPF application.

2. Add references to the NoXaml versions of Telerik.Windows.Controls, Telerik.Windows.Controls.Input, Telerik.Windows.Controls.Navigation, Telerik.Windows.Controls.RibbonView, Telerik.Windows.Controls.Data and Telerik.Windows.Themes.Windows8.

3. Replace MainWindow.xaml with:

4. Replace MainWindow.xaml.cs with:

5. Run the application. When full screen a black line appears under the header.

Tested with Windows 8 pro, 64-bits.

Patrick

We are using the Q2 2013 controls, the documentation states that the RadTimeline is in Telerik.Windows.Controls, however when trying to add one to a view intellisense can't find it and says RadTimeline does not exist in

http://schemas.telerik.com/2008/xaml/presentation.

Has the functionality moved to a new DLL?

EDIT: Found example where it is now in Telerik.Windows.Controls.DataVisualization.dll.

Steve

Hello, I am making an application for work that involves using an OData service.

I am using the RadDataServiceDataSource control in conjunction with the RadDataFilter to manage data from the OData service such that the user can get the information they need without actually having to know how to compose an OData query string (the data is presented in a RadGridView).

The problem I am running into occurs when there are few to no filters in the query string (which are provided via the RadDataFilter on the UI). I appear to be getting a timeout exception, the following is a relevant line from the response message from the service: 

"Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding."

I have confirmed that the server is indeed responding and I have tried increasing the timeout on both the service directly and also on the RadDataServiceDataSource object in the XAML. Unfortunately this seems to have no effect at all. Whether an exception gets thrown or the operation is successful the service spins for the same amount of time. 

After a few hours on Google I found some folk who suggested that the following line that is added to the OData query string by default could be the culprit:

inlinecount=allpages

I cannot confirm whether or not this is true, but from what I understand this line adds an extra call to the database that grabs the count of how many rows will be returned when the query string is executed. The problem (in theory) is that even though I have set the PageSize property of the RadDataFilter to only be 1000 (to avoid things like timeout problems and overly large result sets) this first call to grab the count ignores that limiter. If this is indeed true then all I would need to do is change allPages to none in said line at the end of the OData query string. 

I have looked at all of the properties of the service context, RadDataServiceDataSource, and RadDataFilterThe but nothing is sticking out as a way to accomplish this. I have also tried hooking into the loading event of the RadDataServiceDataSource and editing the query string before it is sent but I cannot find a way to change the request URI (as it is read only at this point).

Any advice on how to remedy this situation?

Note: Code/XAML/Full Exception Details were omitted for neatness sake. If you would like to see them I can add those.

Thank you in advance for any help on this matter

Hi,

when we hed the service plan with Telerik, the last download I did was for version 2012.3.1129 and it was for .net 4.0/4.5...
All of our project are in .Net 3.5 so I'm stuck with my version 2012.2.0912 and I would like to know if it's possible to have my latest download for .Net 3.5???

Thank's
Alain

Hello,

My campony is consider to purchase RadControls for WPF
I downloaded the trial version in order to check if we can implement RichTextBox control in our projects.

Quesion: There is a option to insert sql view field to RadRichTextBox document?

Thanks,

Olga Kats

 

 

 

Hello Telerik,

I have RadGridView with ItemTemplate and CellEditTemplate using microsoft ComboBox with IsEditable=true and IsTextSearchEnabled=true. I have raised the "ComboBox_PreviewKeyDown_1" and "ComboBox_PreviewTextInput_1" events , these are working fine but in a case when i press the backspace key the events are not fireing.

Please fix it and provide me the solution.

Regards,

Ramesh
HCL Technologies.
velusamyr@hcl.com

Hi
I have a radgrid with virtual collection which loads 500 (virtual count) at a time. When I initially load the grid it has 500 rows loaded and the totalcount is 20000. I am selecting first row and dragging the scrollbar to the bottom and using shift+click on the last row. At this time I want all the 20000 rows to be selected but its not happening. I see only around 520 rows(the first 500 and last 20) are selected. How can I achieve selecting all the rows in between the first selected row and the shift+click row. Any help is much appreciated.