Please add support for cell content rotation.

 

I know that this is listed in the known unsupported features article, but just to be extra clear about what I am requesting, here's an example from Microsoft Excel

When the column width is decreasing below the size of the filter button the size of the button remains the same and overlaps the previous button.

Hello, 
we have an Excel export in our software that we solved via Telerik Spreadsheet. 
An exported Excel Table can also contain images. 
These pictures are inserted as shape objects. 
The Placement Property is set to xlMove (xlPlacement Enum) in Excel. 
If you now filter the data in Excel, the images remain and are not hidden. 
We therefore need a way of being able to change this Placement Property to the Value xlMoveAndSize
It would be very desirable if this option were made available in Telerik Spreadsheet as our customers urgently need it.

When the users copy an image and paste it to another RadSpreadsheet, then export the Workbook to XLSX, the generated document contains invalid relation as the image is not properly registered inside the resources of the workbook.

 Implement the Page Break Preview functionality like in Excel

There is a discrepancy between RadSpreadProcessing and MS Excel (check the attached record.gif).

The scroll exceeds the visible area when using the auto-fill.

Steps to reproduce:

- Set the VisibleSize to (10 ,10)

- Drag the autofill icon down

 

According to the Open XML documentation, the possible max value for this attribute is an unsignedInt or 4294967295.

Setting a tab color from API:doesn't fire a UI update.

Implement support for ChartSheet 

When changing only number separators and leave the default currency separators values entered in the cells are displayed with wrong separators.

The chart is blinking when the SetValue method is used

The selected text is not readable when the Worksheet tab is in Edit mode and the applied theme is dark.

Reproducible in NoXaml scenario and for all dark themes except Fluent Dark.

When setting Wrap Text to an already merged CellSelection the row height is recalculated according to the cell height instead of keeping the initial height of the row.

The exception is thrown and the document cannot be imported.

Currently, caching formula results is not supported.

The current worksheet is not updated if the workbook is set while the control is disabled.

Workaround: 

private void RadButton_Click( object sender, RoutedEventArgs e )
{
    radSpreadsheet.IsEnabled = false;
  
    Workbook spreadsheetWorkbook =
        new XlsxFormatProvider( ).Import( File.ReadAllBytes( @"..\..\Book2.xlsx" ) );
  
    radSpreadsheet.Workbook = new Workbook( );
  
    Dispatcher.InvokeAsync( ( ) => radSpreadsheet.Workbook = spreadsheetWorkbook );
  
    radSpreadsheet.IsEnabled = true;
}

The Outline and Marker properties of the Scatter series are not rendered correctly

A sparkline is a tiny chart in a worksheet cell that provides a visual representation of data that is currently not supported.

Currently, there is an option to export the spreadsheet to PDF file and using RadPdfViewer`s WPF control ThumbnailFactory class to export the PDF document pages to images. Sample code may be seen at this public item: PdfProcessing: Export document pages to images.