Hi,

I have created a custom Appointment class which implements Telerik.WinControls.UI.Appointment.
I store a few fields in this class and they are stored in a database via a custom Edit Appointment Dialog.

I have enabled the recurrence dialog recently and this works fine - can add a recurrence rule and this generates occurrences, etc. Looking at the other threads, I figured I had to include the following in my custom class for this to happen:

The issue I now face is that I want to store the RecurrenceRule in my database (right now recurrence only works in-memory). To do this, I have a string field "JobRecurrenceRule" which is stored in the database.

When an appointment is to be saved to the database, I do the following:

When appointments are read from the database, I do the following to instantiate RecurrenceRule:

The recurrence rule is being correctly saved to the database, but when I try to load the appointment back from the database, the scheduler seems to freeze. I get a context switch deadlock:

ContextSwitchDeadlock was detected
Message: The CLR has been unable to transition from COM context 0x4ac6f90 to COM context 0x4ac7100 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.

I have traced the freezing down to the code where I add the appointment with the RecurrenceRule to the RadScheduler.

Commenting out the line:

Therefore, not reading the recurrence rule from the database, prevents this deadlock.

I am assuming that something is not quite right with the way I am loading the RecurrenceRule from the database. Perhaps I am missing something? Any help much appreciated.

Regards.

I am trying to set the backcolor of a gridview GridViewCommandColumn using conditional formating, but it is not showing the colors:
I am using gridview version 2011.1.11.419
Please help

Thanks

Here is the code:

 

 

 

 

my cell is created like this:

}

Hi
How to insert new row to RadGridView in custom place. this code add new row at top or bottom :
RadGridView1.Rows.Add("x","y")
Thank you.

Hi,

   I'd like know how to do get value of rows selected with CheckBox on GridView?
Example:

Name               |  Selected
Steve Jobs        
Bill Gates                x
Larry Page
Mark Zuck               x

Your select Bill Gates and Mark Zuck.

I tried with foreach, but isn't get the values selected.

Thanks attention!

hi friends.
when i'm merging assemblies; gridview's custom detail view element is not working.
other components and forms are working but this has 'Telerik.WinControls.UI.RadPageViewDragDropService' error message....

HI
Does WinForms support diplaying data received on a serial port in a scrolling time chart?
I have seen examples on how to connec an rss feed from the net but want to display data from an electronic instrument.

Regards
Fredrik Enquist

Hello!
Is it possible to turn off automatic selection of the first row in a GridView. The automatic selection takes place on grid creation an when rebinding the data source.
Thanks. 

Hi I am using the Gridview, to display some data. I have a tax filing status column, which I am giving it the values of the combo box from an enumeration, like the following. 



When I the user changes the value in the combo box, I change the bound data of the grid. Then I refresh the templates of the grid. 
Some of the time this works fine, but often enough, I get the following exception. 

Object reference not set to an instance of an object. 

Telerik.WinControls.UI.GridComboBoxCellElement.SetContent().  I walked through the code that I have in the cell value changed, and there is no issues there. Am I using the ComboBoxColumn wrong ? 

- Erion

Hi,

  I'd like know how to do set a icon on GridViewCommand?
Example attached!

Thanks attention!

Hello, Happy Holidays!

I  have a variable SelectedIndex that is bound to the index of the "clicked" row. I use SelectedIndex like this: radGridView1.Rows[0].ChildRows[SelectedIndex].IsCurrent = true; but this doesn´t work, it highlights the first row. If I use radGridView1.Rows[0].ChildRows[1].IsCurrent = true; for example it works! anyone can give me an idea?

thanks in advance,
Michael