RadMap control has an interesting feature in which, while zooming in, if no data is available for a zoom level, the last available image of a lower zoom level is used (scaled up to match the geographical bounds of the image). It would be really useful if the feature was available also while zooming out, allowing users to not have to have data for all zoom levels when using a custom offline provider.

Vertical and horizontal scroll bar moves too fast once outside of the Viewport and one is dragging the selection.

Add an event on the RadVirtualKeyboard class that is raised when a key button is pressed. For example, KeyPressed or something like this. 

Provide option to set if the grouping is case-sensitive

Enable the customers to create and modify .pptx (PowerPoint) files . They need processing as well as showing such documents.

Introduce a way to set the modifier key used for multi-column sorting.

Make the following selection-related methods of the HeatMapDefinition class "protected internal virtual" instead of "internal virtual". 

• IsCellSelected
  
• IsRowSelected
  
• IsColumnSelected
  

This will allow the developer to properly implement also the selection feature in their custom heat map definition code.

 RadSpreadsheetSheetSelector add options for disabling the reordering and the editing of the sheets 

Add NoResultsContent and NoResultsContentTemplate properties to the RadMultiColumnComboBox control. 

Add NoResultsContent and NoResultsContentTemplate properties to the RadComboBox control. 

Currently, the width of the category indicator for each item is a fixed size, depending on the design of each theme. Include an API for changing this value.

LayoutControl uses XamlWriter.Save/XamlReader.Load when custom items/controls are added in its toolbox.
For example:
 LayoutControlHierarchicalNodeProxy radGridToolBoxProxy = new LayoutControlHierarchicalNodeProxy();
 radGridToolBoxProxy.Header = "RadGrid";
 radGridToolBoxProxy.OriginalItemType = typeof(RadGridView);
 radGridToolBoxProxy.OriginalItem = new RadGridView() { };

 this.toolBoxView.NewItems.Add(radGridToolBoxProxy);

OnDrop in LayoutControl, internally a deep copy is created of the object via XamlWriter.Save and  XamlReader.Load. but this has lots of limitations and not every custom control can be successfully restored.

Add event or other API so that user can have control of the creation of the element when drag drop from toolbos is performed.

Currently filtering with virtualized RadComboBox is not supported as the filtering feature works with the containers (changes their Visibility).

Add rectangle selection in multiple/extended selection mode just like in Windows Explorer.

Add input rules and character count limit to the text box: 

 

1. There is no input mask, although the expected pattern is AARRGGBB.
2. Arbitrary and invalid characters can be input (#, +, %, Z, ...).
3. Invalid input is parsed to FF000000, but there is no indication that the input is wrong.
4. Shorter valid sequences, e.g. AB, are parsed, but to FFAB0000, instead of AB000000, which seems unintuitive.
5. Longer sequences exceeding the pattern can be input, although invalid.
6. Entering longer sequences leads to the expansion of the input box even beyond the bounds of the control 

Expose events that are fired when the internal document commands are executed. 

Currently, the there are two frames that happen on property changed that cause the blink. On the first frame, the labels are cleared and the cells are drawn. On the next frame, the labels measure/arrange phase catch up with the cells image drawing and the control is rendered again. Because of this when a cell value is changing at a fast rate (in a timer or similar) and redrawing of the cells is required, a blinking of all texts in the control can be observed.

Currently, the categories in the CategoricalAxis are ordered by the order of their appearance in the plotted data. Allow ordering the categories manually.

Currently, the maximum that is displayed in the calendar is 1/1/3000  and the minimum is 1/1/1000.  However, you can set a value that is bigger or smaller in the SelectedDate property. Introduce an API that allows changing those dates.

Add an API in the chart spline series (like a method override or similar) that allows you to calculate your own set of additional points that render the spline in the chart's spline series.