NullReferenceException is thrown when the VisibleSize property of RadSpreadsheet is set more than once on two (or more) adjacent lines. For example:

spreadsheet.VisibleSize = new SizeI(1, 1);
spreadsheet.VisibleSize = new SizeI(5, 5);

To work this around you can increase the time between the settings of the VisibleSize property. For example you can use the ActiveSheetEditorChanged event of RadSpreadsheet and the ActivePresenterChanged event of the ActiveWorksheetEditor, and the UIUpdated event of the ActivePresenter. Each time the VisibleSize is changed, the ActiveWorksheetEditor will be recreated along with its ActivePresenter. You should make sure the second, third, etc. setting of the VisibleSize is executed after the new ActivePresenter is loaded. This can be done in the UIUpdated event.

When a de-DE culture is applied the 1,1 should be parsed as a number. On the other hand the 1.1 (with a dot) should be parsed as 01.Jan. Currently, both values (1,1 and 1.1) are parsed as datetime.

Decline reason: This is reproducible only if the cell was previously formatted as DateTime. In this case the separator is not taken into account which is expected. The same behavior can be observed also in Excel.

When the VisibleSize property of the spreadsheet control is set (for example new SizeI(10, 10)) and column is selected via its header (click on it), the IsColumnSelection property of the ActiveWorksheetEditor's Selection returns False. This applies also for the IsRowSelection property.

If you try to filter a column which contains a cell with applied font color and the project is run in debug mode with enabled C# exceptions, it throws ArgumentException at System.Windows.Media.ColorConverter.ConvertFrom(ITypeDescriptorContext td, CultureInfo ci, Object value). The exception is handled and the functionality is working as expected, however this may be annoying during debugging projects containing RadSpreadsheet.

This item is declined. The visualized border describes the print area.

If you need to set a custom type number format (using Format cell dialog) and enter some additional text in Type TextBox and press Enter key, the changes are not applied.


Steps to reproduce: 

1. Insert some time in a cell in spreadsheet (22:20)

2. Apply it a custom format that contains AM/PM (e.g. "h:mm AM/PM") and press Enter key

Observed: The AM/PM format is missing

Expected: AM or PM should be shown after the time


Workaround: Press OK button or first click somewhere else in order to change the focus

Clicking the Find All button resizes the dialog to a smaller size and the buttons on the bottom are not visible. Closing the dialog and opening it again opens it with very large size.
No workaround at the moment.

Add support for preserving and exporting the macros in a macro-enabled workbook.

When using the OpenFile command to open a document, you should be able to obtain the Name of the workbook in the WorkbookChanged event handler. 

When a cell's format is set to "Percentage" and then a number is entered, the number's format is incorrect. For example, if "10" is entered in such a cell, the value is visualized as "1000.00%", instead of "10.00%".

The item is duplicated. Please, find the approved public item at http://feedback.telerik.com/Project/143/Feedback/Details/145412

When a workbook with a number of worksheets larger than a certain count is saved an out of memory exception is thrown. The necessary number of worksheets depends on the file and the machine, but it ranges between 70-90.

Currently, only Workbook/Worksheet could be protected. Would be nice to expose a way to protect cells for scenarios in which only particular cells should be locked for modifications.

The feature will be available in our official release Q1 2016.

The formula expressions are invalidated by the formula arguments only. Which means that the formula expression will be invalidated only if some of its arguments is invalidated. But formulas like Indirect returns cell reference ranges. If something in the preferred range is changed the result have to update for which invalidation of the formula expression is needed.