我正在使用OpenXml生成excel文件，在游过大量不同的示例代码和SDK Productivity Tool之后，终于设法得到了我想要的东西。只有一件事我无法解决。 当我使用Excel打开文件并尝试将单元格复制/粘贴到另一个Excel文件时，我得到“该命令不能用于多个选择”。它绝对不是一个非相邻的选择问题，因为即使只有一个单元格也无法做到。 此外，如果我用Excel保存我的文件并重新打开它，问题就会消失，所以我认为它可能与我创建文件的方式有关。 任何建议，将不胜感激。这是我用来生成文件的代码：
public class ExcelGenerator
{
#region Fields
private List<Tuple<DbDataReader, string>> datasource;
private string[] cellReferences = new string[] { "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z" };
private SpreadsheetDocument workbook;
Hashtable stringItemIndexMap;
int nextIndex;
private uint numberStyleID;
private uint decimalStyleID;
private uint textStyleID;
private uint headerTextStyleID;
#endregion
#region Constructors
public ExcelGenerator(DbDataReader reader, string sheetName) : this(new List<Tuple<DbDataReader, string>>() { new Tuple<DbDataReader, string>(reader, sheetName) }) { }
public ExcelGenerator(List<Tuple<DbDataReader, string>> datasource)
{
if (datasource == null)
{
throw new Exception("The value of 'datasource' cannot be null.");
}
this.datasource = datasource;
this.stringItemIndexMap = new Hashtable();
cellReferences = cellReferences.Concat(cellReferences.SelectMany(a => cellReferences.Select(b => a + b))).ToArray();
}
#endregion
#region Properties
public Dictionary<string, string> FieldTitleMappings { get; set; }
public string[] FieldsToExport { get; set; }
#endregion
#region Methods
public void Generate(string path)
{
if (string.IsNullOrEmpty(path))
{
throw new ArgumentNullException("path");
}
using (workbook = SpreadsheetDocument.Create(path, SpreadsheetDocumentType.Workbook))
{
Generate(workbook);
}
}
public void Generate(Stream workBookStream)
{
if (workBookStream == null)
{
throw new ArgumentNullException("workBookStream");
}
using (workbook = SpreadsheetDocument.Create(workBookStream, SpreadsheetDocumentType.Workbook))
{
Generate(workbook);
}
}
public void Generate(SpreadsheetDocument workbook)
{
if (workbook == null)
{
throw new ArgumentNullException("workbook");
}
workbook.AddWorkbookPart();
workbook.WorkbookPart.Workbook = new Workbook();
workbook.WorkbookPart.AddNewPart<SharedStringTablePart>();
var worksheetPart = workbook.WorkbookPart.AddNewPart<WorksheetPart>();
var sheets = workbook.WorkbookPart.Workbook.AppendChild(new Sheets());
workbook.WorkbookPart.AddNewPart<WorkbookStylesPart>();
workbook.WorkbookPart.WorkbookStylesPart.Stylesheet = CreateStylesheet();
workbook.WorkbookPart.WorkbookStylesPart.Stylesheet.Save();
uint sheetCounter = 0;
foreach (var ds in datasource)
{
var reader = ds.Item1;
Worksheet worksheet = new Worksheet();
SheetData sheetData = new SheetData();
SheetViews sheetViews = new SheetViews();
SheetView sheetView = new SheetView() { RightToLeft = true, TabSelected = true, WorkbookViewId = (UInt32Value)0U };
Selection selection = new Selection() { ActiveCell = "A1", SequenceOfReferences = new ListValue<StringValue>() { InnerText = "A1" } };
sheetView.Append(selection);
sheetViews.Append(sheetView);
worksheet.Append(sheetViews);
#region Generate header
uint counter = 0;
var headerRow = new Row();
headerRow.RowIndex = ++counter;
var schema = reader.GetSchemaTable();
var dataTypes = new List<Type>();
var columnHeaders = new List<string>();
foreach (DataRow r in schema.Rows)
{
var c = new Cell();
var headerText = r["ColumnName"].ToString();
if (FieldTitleMappings != null && FieldTitleMappings.ContainsKey(headerText))
{
headerText = FieldTitleMappings[headerText];
}
c.DataType = CellValues.String;
c.CellValue = new CellValue(headerText);
c.StyleIndex = headerTextStyleID;
headerRow.AppendChild(c);
dataTypes.Add((Type)r["DataType"]);
columnHeaders.Add(headerText);
}
CreateColumnsFromHeaderText(worksheet, columnHeaders);
sheetData.AppendChild(headerRow);
#endregion
#region Populate contents
var fieldsCount = reader.FieldCount;
while (reader.Read())
{
object[] currentRowData = new object[fieldsCount];
reader.GetValues(currentRowData);
var row = new Row();
row.RowIndex = ++counter;
for (var i = 0; i < fieldsCount; i++)
{
row.AppendChild(CreateCell(currentRowData[i], dataTypes[i], cellReferences[i] + row.RowIndex));
}
sheetData.AppendChild(row);
}
#endregion
workbook.WorkbookPart.SharedStringTablePart.SharedStringTable.Save();
worksheet.AppendChild(sheetData);
worksheetPart.Worksheet = worksheet;
worksheetPart.Worksheet.Save();
sheets.AppendChild(new Sheet()
{
Id = workbook.WorkbookPart.GetIdOfPart(worksheetPart),
SheetId = ++sheetCounter,
Name = ds.Item2
});
}
workbook.WorkbookPart.Workbook.Save();
}
private Stylesheet CreateStylesheet()
{
Stylesheet ss = new Stylesheet();
Fonts fts = new Fonts();
Font ft = new Font();
FontName ftn = new FontName();
ftn.Val = "Tahoma";
FontSize ftsz = new FontSize();
ftsz.Val = 10;
ft.FontName = ftn;
ft.FontSize = ftsz;
fts.Append(ft);
ft = new Font();
ftn = new FontName();
ftn.Val = "Tahoma";
ftsz = new FontSize();
ftsz.Val = 10;
ft.FontName = ftn;
ft.FontSize = ftsz;
ft.Bold = new Bold { Val = true };
fts.Append(ft);
fts.Count = (uint)fts.ChildElements.Count;
Fills fills = new Fills() { Count = (UInt32Value)3U };
Fill fill1 = new Fill();
PatternFill patternFill1 = new PatternFill() { PatternType = PatternValues.None };
fill1.Append(patternFill1);
Fill fill2 = new Fill();
PatternFill patternFill2 = new PatternFill() { PatternType = PatternValues.Gray125 };
fill2.Append(patternFill2);
Fill fill3 = new Fill();
PatternFill patternFill3 = new PatternFill() { PatternType = PatternValues.Solid };
ForegroundColor foregroundColor1 = new ForegroundColor() { Theme = (UInt32Value)0U, Tint = -0.14999847407452621D };
BackgroundColor backgroundColor1 = new BackgroundColor() { Indexed = (UInt32Value)64U };
patternFill3.Append(foregroundColor1);
patternFill3.Append(backgroundColor1);
fill3.Append(patternFill3);
fills.Append(fill1);
fills.Append(fill2);
fills.Append(fill3);
Borders borders = new Borders() { Count = (UInt32Value)2U };
Border border1 = new Border();
LeftBorder leftBorder1 = new LeftBorder();
RightBorder rightBorder1 = new RightBorder();
TopBorder topBorder1 = new TopBorder();
BottomBorder bottomBorder1 = new BottomBorder();
DiagonalBorder diagonalBorder1 = new DiagonalBorder();
border1.Append(leftBorder1);
border1.Append(rightBorder1);
border1.Append(topBorder1);
border1.Append(bottomBorder1);
border1.Append(diagonalBorder1);
Border border2 = new Border();
LeftBorder leftBorder2 = new LeftBorder() { Style = BorderStyleValues.Thin };
Color color2 = new Color() { Indexed = (UInt32Value)64U };
leftBorder2.Append(color2);
RightBorder rightBorder2 = new RightBorder() { Style = BorderStyleValues.Thin };
Color color3 = new Color() { Indexed = (UInt32Value)64U };
rightBorder2.Append(color3);
TopBorder topBorder2 = new TopBorder() { Style = BorderStyleValues.Thin };
Color color4 = new Color() { Indexed = (UInt32Value)64U };
topBorder2.Append(color4);
BottomBorder bottomBorder2 = new BottomBorder() { Style = BorderStyleValues.Thin };
Color color5 = new Color() { Indexed = (UInt32Value)64U };
bottomBorder2.Append(color5);
DiagonalBorder diagonalBorder2 = new DiagonalBorder();
border2.Append(leftBorder2);
border2.Append(rightBorder2);
border2.Append(topBorder2);
border2.Append(bottomBorder2);
border2.Append(diagonalBorder2);
borders.Append(border1);
borders.Append(border2);
CellStyleFormats csfs = new CellStyleFormats();
CellFormat cf = new CellFormat();
cf.NumberFormatId = 0;
cf.FontId = 0;
cf.FillId = 0;
cf.BorderId = 0;
cf.Alignment = new Alignment { Horizontal = HorizontalAlignmentValues.Right };
csfs.Append(cf);
csfs.Count = (uint)csfs.ChildElements.Count;
uint iExcelIndex = 164;
NumberingFormats nfs = new NumberingFormats();
CellFormats cfs = new CellFormats();
cf = new CellFormat();
cf.NumberFormatId = 0;
cf.FontId = 0;
cf.FillId = 0;
cf.BorderId = 0;
cf.FormatId = 0;
cf.Alignment = new Alignment { Horizontal = HorizontalAlignmentValues.Right };
cfs.Append(cf);
cf = new CellFormat();
cf.NumberFormatId = 0;
cf.FontId = 0;
cf.FillId = 0;
cf.BorderId = 1;
cf.FormatId = 0;
cf.Alignment = new Alignment { Horizontal = HorizontalAlignmentValues.Right };
cfs.Append(cf);
textStyleID = (uint)(cfs.ChildElements.Count - 1);
NumberingFormat nf;
nf = new NumberingFormat();
nf.NumberFormatId = iExcelIndex++;
nf.FormatCode = "dd/mm/yyyy hh:mm:ss";
nfs.Append(nf);
cf = new CellFormat();
cf.NumberFormatId = nf.NumberFormatId;
cf.FontId = 0;
cf.FillId = 0;
cf.BorderId = 1;
cf.FormatId = 0;
cf.ApplyNumberFormat = true;
cf.Alignment = new Alignment { Horizontal = HorizontalAlignmentValues.Right };
cfs.Append(cf);
nf = new NumberingFormat();
nf.NumberFormatId = iExcelIndex++;
nf.FormatCode = "#,##0";
nfs.Append(nf);
cf = new CellFormat();
cf.NumberFormatId = nf.NumberFormatId;
cf.FontId = 0;
cf.FillId = 0;
cf.BorderId = 1;
cf.FormatId = 0;
cf.ApplyNumberFormat = true;
cf.Alignment = new Alignment { Horizontal = HorizontalAlignmentValues.Right };
cfs.Append(cf);
decimalStyleID = (uint)(cfs.ChildElements.Count - 1);
// #,##0.00 is also Excel style index 4
nf = new NumberingFormat();
nf.NumberFormatId = iExcelIndex++;
nf.FormatCode = "#";
nfs.Append(nf);
cf = new CellFormat();
cf.NumberFormatId = nf.NumberFormatId;
cf.FontId = 0;
cf.FillId = 0;
cf.BorderId = 1;
cf.FormatId = 0;
cf.ApplyNumberFormat = true;
cf.Alignment = new Alignment { Horizontal = HorizontalAlignmentValues.Right };
cfs.Append(cf);
numberStyleID = (uint)(cfs.ChildElements.Count - 1);
cf = new CellFormat();
cf.FontId = 1;
cf.FillId = 2;
cf.BorderId = 1;
cf.FormatId = 0;
cf.Alignment = new Alignment { Horizontal = HorizontalAlignmentValues.Right };
cf.ApplyNumberFormat = true;
cfs.Append(cf);
headerTextStyleID = (uint)(cfs.ChildElements.Count - 1);
nfs.Count = (uint)nfs.ChildElements.Count;
cfs.Count = (uint)cfs.ChildElements.Count;
ss.Append(nfs);
ss.Append(fts);
ss.Append(fills);
ss.Append(borders);
ss.Append(csfs);
ss.Append(cfs);
CellStyles css = new CellStyles();
CellStyle cs = new CellStyle();
cs.Name = "Normal";
cs.FormatId = 0;
cs.BuiltinId = 0;
css.Append(cs);
css.Count = (uint)css.ChildElements.Count;
ss.Append(css);
DifferentialFormats dfs = new DifferentialFormats();
dfs.Count = 0;
ss.Append(dfs);
TableStyles tss = new TableStyles();
tss.Count = 0;
tss.DefaultTableStyle = "TableStyleMedium9";
tss.DefaultPivotStyle = "PivotStyleLight16";
ss.Append(tss);
return ss;
}
private ForegroundColor TranslateForeground(System.Drawing.Color fillColor)
{
return new ForegroundColor()
{
Rgb = new HexBinaryValue()
{
Value =
System.Drawing.ColorTranslator.ToHtml(
System.Drawing.Color.FromArgb(
fillColor.A,
fillColor.R,
fillColor.G,
fillColor.B)).Replace("#", "")
}
};
}
private Cell CreateCell(object value, Type dataType, string cellReference)
{
var cell = new Cell();
cell.CellReference = cellReference;
value = value ?? "";
if (dataType == typeof(decimal))
{
cell.DataType = CellValues.Number;
cell.CellValue = new CellValue(value.ToString());
cell.StyleIndex = decimalStyleID;
}
else if (dataType == typeof(int) || dataType == typeof(short) || dataType == typeof(long) ||
dataType == typeof(uint) || dataType == typeof(ushort) || dataType == typeof(ulong))
{
cell.DataType = CellValues.Number;
cell.CellValue = new CellValue(value.ToString());
cell.StyleIndex = numberStyleID;
}
else
{
if (value is DateTime)
{
value = DateTimeUtil.ToShamsiDate((DateTime)value);
}
cell.DataType = CellValues.SharedString;
cell.CellValue = new CellValue(InsertSharedStringItem(value.ToString()));
cell.StyleIndex = textStyleID;
}
return cell;
}
private string InsertSharedStringItem(string value)
{
if (workbook.WorkbookPart.SharedStringTablePart.SharedStringTable == null)
{
workbook.WorkbookPart.SharedStringTablePart.SharedStringTable = new SharedStringTable();
nextIndex = 0;
}
var i = 0;
var index = stringItemIndexMap[value] as string;
if (index == null)
{
workbook.WorkbookPart.SharedStringTablePart.SharedStringTable.AppendChild(new SharedStringItem(new Text(value)));
index = nextIndex.ToString();
stringItemIndexMap.Add(value, index);
nextIndex++;
}
return index;
}
public void CreateColumnsFromHeaderText(Worksheet workSheet, IEnumerable<string> headerTexts)
{
Columns columns = new Columns();
uint index = 1;
foreach (var sILT in headerTexts)
{
double fSimpleWidth = 0.0f;
double fWidthOfZero = 0.0f;
double fDigitWidth = 0.0f;
double fMaxDigitWidth = 0.0f;
double fTruncWidth = 0.0f;
System.Drawing.Font drawfont = new System.Drawing.Font("Tahoma", 10);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(new System.Drawing.Bitmap(200, 200));
fWidthOfZero = (double)g.MeasureString("0", drawfont).Width;
fSimpleWidth = (double)g.MeasureString(sILT, drawfont).Width;
fSimpleWidth = fSimpleWidth / fWidthOfZero;
for (int i = 0; i < 10; ++i)
{
fDigitWidth = (double)g.MeasureString(i.ToString(), drawfont).Width;
if (fDigitWidth > fMaxDigitWidth)
{
fMaxDigitWidth = fDigitWidth;
}
}
g.Dispose();
// Truncate([{Number of Characters} * {Maximum Digit Width} + {5 pixel padding}] / {Maximum Digit Width} * 256) / 256
fTruncWidth = Math.Truncate((sILT.ToCharArray().Count() * fMaxDigitWidth + 40.0) / fMaxDigitWidth * 256.0) / 256.0;
var column = new Column();
column.Min = index;
column.Max = index++;
column.Width = fTruncWidth;
column.CustomWidth = true;
columns.Append(column);
}
workSheet.Append(columns);
}
#endregion
}
答案 0 :(得分：8)
我遇到了这个问题，发现这是因为没有将BookViews对象附加到工作簿。必须在Sheets对象之前附加BookView：
workbook.Append(new BookViews(new WorkbookView()));