Open Xml 写入日期类型

 效果图：

  

 

关键代码：

类型判断

                        if (rIndex == 1)

                        {

                            cell.CellValue = new CellValue(item.ToString());

                        }

                        else if (rIndex == 2)

                        {

                            cell.CellValue = new CellValue(((DateTime)item).ToOADate().ToString());

                            cell.StyleIndex = 1;

                        }

                        else

                        {

                            int index = InsertSharedStringItem(item.ToString(), m_SharedStringTablePart);

                            cell.CellValue = new CellValue(index.ToString());

                            cell.DataType = new EnumValue<CellValues>(CellValues.SharedString);

                        }

Style：

        static Stylesheet CreateStylesheet()

        {

            Stylesheet stylesheet1 = new Stylesheet();



            Fonts fonts1 = new Fonts() { Count = (UInt32Value)1U, KnownFonts = true };

            Font font1 = new Font();

            fonts1.Append(font1);

            Fills fills1 = new Fills() { Count = (UInt32Value)1U };

            Fill fill1 = new Fill();

            fills1.Append(fill1);

            Borders borders1 = new Borders() { Count = (UInt32Value)1U };

            Border border1 = new Border();

            borders1.Append(border1);



            CellFormats cellFormats1 = new CellFormats() { Count = (UInt32Value)2U };

            CellFormat cellFormat1 = new CellFormat() ;

            CellFormat cellFormat2 = new CellFormat()

            { 

                NumberFormatId = (UInt32Value)22U, 

                ApplyNumberFormat = true 

            };

            cellFormats1.Append(cellFormat1);

            cellFormats1.Append(cellFormat2);



            stylesheet1.Append(fonts1);

            stylesheet1.Append(fills1);

            stylesheet1.Append(borders1);

            stylesheet1.Append(cellFormats1);



            return stylesheet1;

        } 

其中，fonts，fills和borders需要写入，这个很关键，并且cellFormat1也需要写入。