What is the correct way use a "DataColumn" object to tell the RadGridView which column to bind to? I can get it to bind using the "ColumnName" property on the column, but I would rather bind on the DataColumn object itself.

Here is a test program to demonstrate the problem


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The column that I set via the property did not work, but the one referencing the column name and the auto generated column both worked. What is the correct way to reference a column using the property?

In SelectionMode of Single, what I want is to search on one property but show another when it is selected.

Using the First look example code, the TextSearchPath is Title. DisplayMemberPath is not set. 

I added a property to Song:

        public string SearchText
        {
            get
            {
                return string.Format("{0}, {1}", this.title, this.author);
            }
        }

I want to search on both title and author. So I changed TextSearchPath to SearchText.
What I want to show when selected is Title, so I added DisplayMemeberPath to Title. This does not work. It still shows the SearchText property when selected. 

Is this a bug, limitation, or something I can work around?

Rob

Hello Telerik,

I’m using the RadGridView bound to a QueryableEntityCollectionView which is just a simple SQL-Table. How can I reload the collection 
(update the UI) when only a field in an existing row has changed in the background in the SQL-Database.
Calling Refresh() works if a row is added or deleted.

Regards
Uwe

I've got a simple solution showing the leak, but cannot attach .zip file anywhere?

We have a requirement of building an editable grid that looks something like below. Can you tell us if this is possible with minimal work using any of your controls.. including pivot control if possible. We are looking at purchasing around 8-10 developer licenses. Remember the control must support 2-way binding such that if a user changes any data in the grid, then it must correctly update the field of the correct element in the object collection:

 

Date	1/1/2012	1/2/2012	1/3/2012	1/4/2012
Customer	Cust 1	Cust 2	Cust 3	Cust 4
Bill Amount	100	200	120	50

 

As you can see it is basically a transposed list and the data format is per row/cell and not per column. Will really appreciate if someone can point me to the control that would fit this need with some directions/links etc. Also the no. of columns will be dynamic, so the grid needs to generate the appropriate no. of columns at runtime.

Hi,

I check your Datamodel at http://www.telerik.com/help/wpf/radscheduleview-populating-with-data-binding-to-db-sources.html

And I also downloaded your xamlskd example (ScheduleView_WPF - WithDB).

My problem - there is an interface IExceptionOccurence with the properties Appointment and ExceptionDate.
Appointment references the originating recurrent appointment.

But I don't understand the property ExceptionDate.
To check I did:
a.) Create a recurring appointment (every day at 9:00)
b.) Changed one occurrence to 10:00
c.) Changed that occurrence to 11:00

What I got is
b.)- added an ExceptionAppointment and an EceptionOccurrence pointing to the original Appointment
-- ExcpetionAppointment Start and ExceptionOccurrence Exception Date have 10:00 as value
c.) - changed the Start in the ExceptionAppointment to 11:00 - but did not change the ExceptionOccurrence - ExceptionDate

Further I manually changed the ExceptionOccurrence Exception Date -- that has no effect at all
But when I change the StartDate of the ExceptionAppointment the thing move in the Scheduler.

So what is this "ExceptionDate" in the IExceptionOccurence?

Manfred

Hi,

I did the following.
Added a recurring (Daily) Appointment for 2014/07/21 and an exception (changed Time) for 2014/07/22.

With this data I called thisAppointment.GetOccurrences(new DateTime(2014, 7, 1), new DateTime(2014, 7, 10))

From my point of view I should get nothing since the first occurrence of the appointment is at 2014/07/21.
What I get instead is the exception from 2014/07/22.

So asking for an occurrence int the range from 2014/07/01 to 2014/07/10 I get one at 2014/07/22.

Manfred

I'm attempting to use the PersistenceFramework with a GridView control for the first time using the example shown here:
http://www.telerik.com/help/wpf/persistence-framework-getting-started.html

I'm importing the namespaces:

I have the StorageID set in my GridView:

I'm saving and loading grid when the app closes and loading the grid when it opens:

When LoadFromStorage() runs I get the error:  "Token not valid" 
Can someone please give me some idea what I've done wrong?  This seems really simple in the example.

Using this method will save the grid settings between application uses correct? 

Thank you for the help.

 {"Value cannot be null.\r\nParameter name: handler"}
 at System.Windows.UIElement.RemoveHandler(RoutedEvent routedEvent, Delegate handler)
   at Telerik.Windows.Controls.DoubleRangeBase.remove_SelectionChanged(RadRoutedEventHandler value) in c:\TB\221\WPF_Scrum\Release_WPF\Sources\Development\Core\Controls\Slider\DoubleRangeBase.cs:line 104


{"Exception has been thrown by the target of an invocation."}
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
   at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
   at Telerik.Windows.Data.WeakEvent.WeakListener`1.Unsubscribe() in c:\TB\221\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\WeakEvents\WeakEvent.cs:line 67
   at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args) in c:\TB\221\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\WeakEvents\WeakEvent.cs:line 39


Click the Change button, the error occurs several times.

[MainWindowsViewModel.cs]

    private bool flag;
        void ChangeDateCommandEx(object o)
        {
            ItemsSource = GetTimelineDatas();

            EndDate = DateTime.Today;
            StartDate = flag ? EndDate.AddDays(-5) : EndDate.AddDays(-295);  // -295 => -294 (No Exception)
            flag = !flag;
        }

[Attach sample file]
http://l.bitcasa.com/VMi0hv5l

Hi, 

I have a canvas with an image in background on a simple diagram, because I needed zoom in this image. This part is not problem. I need that the canvas shows in the RadDiagramNavigationPane because I only see the shapes of the diagram. 

Thanks for your help!