I have created a RadComboBox and bound the data to a Collection of strings. I wanted to add a new item to the list when "New" item in the RadComboxBox is selected. i.e. RadComboBox will be set to editable when "New" item is selected and the entered text has to be add to the existing list only when Enter pressed or LostFocus. Could you help me to achieve this ? 

XAML code to create the combobox with databinding 
C# code to make the radcombobox editable and read the entered value,


C# code to add the entered text to Collection


It would be good if i can set the default text when the combo box is editable.

For easy coding we would like to use the DataGridViews feature DataLoadMode="Asynchronous" binding directly to the query.
Using this we do not need to manually code async EF I/O, the application does not block and by Binding the windows IsEnabled to the grids IsDirty we can easily block user input on the busy window.

If we use an ObservableCollection the I/O happens outside of the grid and thus is not async.
grid.ItemsSource = ObservableCollection(qry)

Without using an ObservableCollection I cannot get adds and deletes working.
For instance using grid.ItemsSource.Remove(grid.SelectedItem) plus db.RemoveObjet() seems not to work.

Is there an example for this scenario somewhere?

Hi

Do you have any plans for including autoscroll-paging behavior in the WPF GridView ?
I am currently (re)investigating the possibilities of the WPF controls but this is something I definitely need.

We want:
- GridView connected to a DataServiceDataSource (working)
- GridView without Pager component (working)
- GridView loads only n items from datasource, based on Item RowHeight and GridView Height (not working)
- When vertical scrolling GridView loads n more items from datasource (not working)

Thanks

It appears that this control does not accept the DASH (-).
When using this for address type fields, the user would be required to enter a dash between street number address range.
Any way around this?

Hi

We are working on a project(WPF Client) and using RadSchedulerView that we need to define working days and for each working day needs to be different working hours?

Is any of these possible?

Best regards
Burim

See attached image.

I am using most of RadDocking right out of the box, but have Themed the RadDocking and RadPaneGroup to Office_Blue in XAML using:

However, the AutoHideArea is wider than it needs to be and looks bloated and I would like to customize the "Toolbox" tab to be vertically longer.  I have searched and searched for info on how to do this but have come up empty.

Any help would be appreciated.

Hi,
I have a button with a ListBox control as part of its dropdown content. The content also contains 'ok' and 'cancel' buttons to allow the user to dismiss the dropdown when they are done. I have run into a number of problems trying to get this to work. I don't know whether they are bugs or whether I should be doing this another way so I look forward to any comments that you may post.

Here they are:

1. When a listbox item is selected then the dropdown content closes. This happens because RadGallery.cs registers a handler that unconditionally closes the dropdown when a listbox selection changes. This seems like the right thing to do since there needs to be a way for the dropdown to close but inhis case it is undesirable since I have buttons that serve that function. What I am wondering is if an attached property could be created that could give the handler some direction about whether it should close the dropdown. I would then be able to attach this property to my listbox and the handler would know that it shouldn't close the dropdown.

2. I got around the 'listbox selection closing' problem by setting RadRibbonDropDownButton.KeepOpen = true but this brings on the next issue. 'KeepOpen' appears to work not by preventing the dropdown content from closing but by reopening after its been closed. This isn't obvious when interacting with the control but if you look at the call stack then you'll see that there is a call to 'IsOpen = false' that is quickly followed by a call to 'IsOpen = true'. The side effect of this is that every time a listbox item is selected then the 'DropDownOpening' event is raised. This is undesirable because I have some state variables that I would like to set only when the dropdown content is first displayed. My expectation was that this event would get called only when the drop down was opening and not additionally whenever a listbox item was selected.

3. This one is really more of a question followed by what may be a request. In order for my 'ok' and 'cancel' buttons to close the dropdown programmatically they must determine the RadRibbonDropDownButton control that the dropdown belongs to but I could find no straightforward way to do this other than giving the button a name and then referring to that name in the handlers. What I'd really like to do is to get this to work in a more generic way since my desire is to move the 'ok' and 'cancel' button handlers into a class which I would then use as a base class for other dropdown content. So the question is whether there is a way to do this that I am missing. If there is none then I have a request, which is for the RadRibbonDropDownButton to attach a property to the topmost visual of its dropdown (a popup I suppose) that indicates the RadRibbonDropDownButton that owns the dropdown.
Thanks and best regards,
Pete

Hi. 

<telerik:GridViewDataColumn DataMemberBinding="{Binding ActVoltage,TargetNullValue=NA}" DataFormatString="0.###" Header="Actual Voltage"/>

Normal output is that I want this column to only show three decimals. However, when the underlying value is null, I want it to show the text "NA". 
It seems that I can't have both. When I included the formatstring, "NA" stopped showing up. I understand why, but not how to solve it.

The underlying type is nullable double.

Hi,

I'm using VS2005 / .Net 3.5 and Telerik V2012.1.0326.35 and sometime, when I clicked on the filter dialog icon in the column header of my radgridview, the filter dialog appear not completly.

Picture enclose...
Thank's

Hi,

My document contains a lot of custom annotations, where each annotation has self generated unique ID.
Is it possible to bring a defined annotation into view based on its ID value?

i.e. If the annotation in question is at the top of the first page, but currently I have the last document page in view, can I make radrichtextbox auto scroll to the annotation when required?

Is it just the case of enumerating through the document searching for the specific annotation ID then setting the caret position to the position of the found annotation field?



Thank you for your time,

Rob