We have several paged grids that should hold many records.  I am doing a test for a grid to hold our 2 million invoice records.  At first I was bringing all of the records into memory using a .ToList() on the Linq query that feeds the grid.  That was taking a long time and giving an "out of memory" exception.  Then I read " If you provide IQueryable for QueryableCollectionView  all operations will be executed directly on your data-base server using the query provider".   Again, it is a business requirement that we use paging (page size of 8), so when I bring up the first page, it is fine, and if I page through the first 2 or 3 pages it seems to work pretty well.  However, when I click the "Last Page" button, it takes almost 30 seconds (and I have even seen it time out several times).  That seemed funny to me, so I wrote a SQL query that essentially does the same thing as going to the last page, and it took less than a second. 

So, my first question is ... Can I get hold of the actual T-SQL that it is running on my database?

My 2nd question is ... Can I somehow optimize this query to run faster?

Hello,

I use InsertAnnotationRange for add CustomAnnotationRange to my document and after want to get CustomAnnotationRange associated document from on of its methods. How can I do it? 
I have some trouble with GetRootDocument method. It sometimes returns null. I tryed call editor.UpdateEditorLayout() but nothing has changed.

Thanks in advance.

I am setting the Path Property in my code. I have found that  It is not accepting the  value I set.

I picking up the values directly from the TreeView Control. 

How can I validate the value before I set it?

  
 
  
Assuming, 

I have created a simple grid that has group header rows following the Aggregates example.


Now the issue I have is that I want my users to be able to select the cells in this grid and paste them into Excel.  The issue is that I can select, copy and paste the regular data rows fine but I can't select the cells with the aggregate data.  Is there a way to make the aggregate rows selectable?

Right now I have the ShowColumnFooters option set to "True" on my RadGridView.  It is showing totals for various columns as expected in a special row at the bottom.  How do I move this row to the top of the grid just below the column headers row?  

Thanks
Ryan

Hi,

I'm using Telerik version 2015.1.225.40 and I have a question regarding a rendering speed issue. In my ScheduleView, I display from monday to friday, from 8h00AM to 9h00PM with a MinorTickLength of 15 min. I receive multiple appointments from a database. For each appointment I receive, I have to display it in the ScheduleView and each appointment contain a UserControl. After that, I have to fill the rest of the grid with SpecialSlots and each Special Slot contain also a UserControl. All UserControls for the appointments and the SpecialSlots contain a border and when a user click on a cell, I need to change the color of the border and I need an interaction with the UserControl.

To fill all the grid, the rendering take between 500ms and 700ms each time and I would like to know if it's possible to reduce the rendering time?!?

Thank's
Alain

Hi,

I want to implement something like TileView that has multiple maximized items.
The ways we get multiple maximized are:
1. Dragging minimized item to maximized items area.
2. Clicking on the "All" button that shows all the items in the maximized area, with eqaul space for every item.
(Concept attached)

I'd like to mention that the minimzed items list (which will be located at the bottom) shouldn't remove the dragged and dropped item.
Any item from the maximized area should be removed by 'X' button (and will stay at the minimized items list at the buttom).

I tried to define RadTileView as the content template in order to enable the re-ordering by dragging behavior, and because it's already handling the equal space allocation for the items.





Is there an out-of-the-box solution for my needs?
Am I in the right way, or what I'm tryind to do is overkill (TileGridView as ContentTemplate)?
Maybe I should do something like that: Define one and only fixed maximixed item that it's ContentTemplate will be RadTileView (or maybe RadDocking) and override its header style to be empty (we will set the Template property with empty ControlTemplate)? 


Thanks for your support!

Our application involves the DragAndDrop of items from a Grid (inside a RadOutlookBar) into a RadTreeView. DragAndDrop is also allowed within the RadTreeView. However a certain set of code is executed only when the item is dragged from the Grid and not within the RadTreeView and the only way we can figure out when to execute said code is to find out where the drag is performed from (drag source). Such is the code structure and can't be tweaked much. I was wondering if there was a way to figure the drag source. 
TIA,
Deepika

Hi ! 
I am implementing  gridview cell merge with UI For WPF Q1 2014 SP1 in WPF Application.
 
 but  there is no cell merge function in UI For WPF Q1 2014 SP1 version.
 ( there is cell merge function in UI For WPF Q3 2014)
 
 Unfortunately, our telerik product license was expired at last year(2014) in May
 
 Please, What is the solution of  this problem ?
 Could you give me references of gridview cell merge function?
 
I will be waiting your hopeful answer.
Thank you very much.

Hello,

I am using a ToolTip Template to show some information related to the items in a Timeline control.

I'd like to increase the amount of time that a tooltip remains visible, I am using the property ToolTipService.ShowDuration but when I change its value it seems it doesn't have effect on the time that the tooltip remains visible.

Is there a way achieve this?

Thanks,

Alberto