Microsoft Excel supports 2 types of date. Date is the number of days starting from 1/1/1900 or 1/1/1904. The first one is the default the second one has been added cause Macintosh supports it. The Microsoft library supports both of them and you can choose programmatically which one you prefer (https://docs.microsoft.com/en-us/dotnet/api/microsoft.office.interop.excel._workbook.date1904?view=excel-pia). Expose such an option in SpreadProcessing as well.

To reproduce: 

- Add the following formula to a cell: "=A1=FALSE"

Actual: the result is always false

Expected: the result should be true when the cell is empty

 

Workaround: Use the ISBLANK function.

The Office Open XML model doesn't support the transparency of the colors inside a document. Even if an alpha channel is used for the colors, this should not be respected by SpreadProcessing and the colors should be without any opacity.

When importing a spreadsheet document whose cells use a style that is not defined in the document stylesheet, a KeyNotFoundException is thrown. The style can be just skipped so that the document can be imported without errors.

When a formula contains new lines, it is parsed incorrectly as follows:

- When it is shared formula it breaks the imported expression and replaces it with #NAME? error.
- In normal case it simply preserves the formula string converting it to StringExpression.

Workaround: Remove the new lines in the formulas.

Have in mind that this code will fix the issue only for the second scenario, when the formula is not shared.

CellRange usedCellRange = workbook.ActiveWorksheet.UsedCellRange;

for (int row = usedCellRange.FromIndex.RowIndex; row < usedCellRange.ToIndex.RowIndex; row++)
{
    for (int column = usedCellRange.FromIndex.ColumnIndex; column < usedCellRange.ToIndex.ColumnIndex; column++)
    {
        CellSelection cell = workbook.ActiveWorksheet.Cells[row, column];
        ICellValue value = cell.GetValue().Value;

        if (value.RawValue.Contains("\n"))
        {
            cell.SetValue(value.RawValue.Replace('\n', ' '));
        }
    }
}

The chart axes are not correctly imported when there are floating and sheet charts

Currently, the calculation of the actual ScaleFactor is based only on Worksheet`s UsedCellRange.

The content of the merged cells is measured and affects the CenterHorizontally behavior. Only the first cell from the merged range should have content. This is the default behavior in MS excel when cells are merged as well.

Implement text orientation for cell content import/export from/to XLSX format

Hello,

we would like to have the capability to create a chart in excel export using Telerik.Documents.Spreadsheet 

Marcos

NullReferenceException when the FindOptions does not contain start cell

Workaround:

Set StatCell like this:

FindOptions options = new FindOptions()
{
    FindWhat = "Record",
    MatchEntireCellContents = true,
    StartCell = new WorksheetCellIndex(workbook.Worksheets[0], new CellIndex(0,0))

};

CellSelection.SetValue method causes memory leak of CellReferenceRangeExpression objects in some cases when cell value is referenced by formulas. The memory leak is small, but the remaining CellReferenceRangeExpression continue to listen to some events, causing performance issues when their number become large - the time to set the value increases with each set.

The calculation takes into account the height of the cell instead of the height of the row. 

Provide ability for working with comments in a spreadsheet document.

Hi Telerik,

 

I would like to request 1 feature to be added in Current RADGRID control which is to exporting grid data to into Excel 2016 version.

We need this feature because one of our supporting application will work only with  Excel 2016 version, where as the current RADGRID conversion only able to export to EXCEL 2007 (excel 12) format.

 

Thank you.

 

 

Text is cut off when exporting to pdf with a specific font.

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

Macros are pieces of code written in Visual Basic for Applications (VBA) which are used to automate repetitive tasks in excel. The macros are part of the excel file. When a file contains a macro its extension becomes xlsm.

SpreadProcessing should be able to import and export xlsm files and edit the macros in them.

Implement functionality to rotate the content of a cell.

ArgumentOutOfRangeException is thrown when a document containing Image which size is not set and cannot be obtained is exported to PDF