我想使用Open XML SDK 2.0（CTP）更新图表使用的电子表格中的单元格。我找到的所有代码示例都插入了新的单元格。我正在努力检索正确的工作表。
public static void InsertText(string docName, string text, uint rowIndex,
string columnName)
{
// Open the document for editing.
using (SpreadsheetDocument spreadSheet =
SpreadsheetDocument.Open(docName, true))
{
Workbook workBook = spreadSheet.WorkbookPart.Workbook;
WorksheetPart worksheetPart = workBook.WorkbookPart.
WorksheetParts.First();
SheetData sheetData = worksheetPart.Worksheet.
GetFirstChild<SheetData>();
// If the worksheet does not contain a row with the specified
// row index, insert one.
Row row;
if (sheetData.Elements<Row>().Where(
r => r.RowIndex == rowIndex).Count() != 0)
// At this point I am expecting a match for a row that exists
// in sheet1 but I am not getting one
当我在Visual Studio中导航树时，我看到三张纸，但没有一张有任何孩子。我错过了什么？
答案 0 :(得分：67)
这是工作代码。这是一个原型。对于大量更改，可能只打开一次文档。此外，还有一些硬编码的东西，如工作表名称和单元格类型，必须先进行参数化，然后再将其称为生产就绪。 http://openxmldeveloper.org/forums/4005/ShowThread.aspx非常有帮助。
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Spreadsheet;
using System.Xml;
using System.IO;
using System.Diagnostics;
namespace OpenXMLWindowsApp
{
public class OpenXMLWindowsApp
{
public void UpdateSheet()
{
UpdateCell("Chart.xlsx", "20", 2, "B");
UpdateCell("Chart.xlsx", "80", 3, "B");
UpdateCell("Chart.xlsx", "80", 2, "C");
UpdateCell("Chart.xlsx", "20", 3, "C");
ProcessStartInfo startInfo = new ProcessStartInfo("Chart.xlsx");
startInfo.WindowStyle = ProcessWindowStyle.Normal;
Process.Start(startInfo);
}
public static void UpdateCell(string docName, string text,
uint rowIndex, string columnName)
{
// Open the document for editing.
using (SpreadsheetDocument spreadSheet =
SpreadsheetDocument.Open(docName, true))
{
WorksheetPart worksheetPart =
GetWorksheetPartByName(spreadSheet, "Sheet1");
if (worksheetPart != null)
{
Cell cell = GetCell(worksheetPart.Worksheet,
columnName, rowIndex);
cell.CellValue = new CellValue(text);
cell.DataType =
new EnumValue<CellValues>(CellValues.Number);
// Save the worksheet.
worksheetPart.Worksheet.Save();
}
}
}
private static WorksheetPart
GetWorksheetPartByName(SpreadsheetDocument document,
string sheetName)
{
IEnumerable<Sheet> sheets =
document.WorkbookPart.Workbook.GetFirstChild<Sheets>().
Elements<Sheet>().Where(s => s.Name == sheetName);
if (sheets.Count() == 0)
{
// The specified worksheet does not exist.
return null;
}
string relationshipId = sheets.First().Id.Value;
WorksheetPart worksheetPart = (WorksheetPart)
document.WorkbookPart.GetPartById(relationshipId);
return worksheetPart;
}
// Given a worksheet, a column name, and a row index,
// gets the cell at the specified column and
private static Cell GetCell(Worksheet worksheet,
string columnName, uint rowIndex)
{
Row row = GetRow(worksheet, rowIndex);
if (row == null)
return null;
return row.Elements<Cell>().Where(c => string.Compare
(c.CellReference.Value, columnName +
rowIndex, true) == 0).First();
}
// Given a worksheet and a row index, return the row.
private static Row GetRow(Worksheet worksheet, uint rowIndex)
{
return worksheet.GetFirstChild<SheetData>().
Elements<Row>().Where(r => r.RowIndex == rowIndex).First();
}
}
}
答案 1 :(得分：6)
我一直在使用excel，发现这个帮助程序库有很大帮助（我已经创建了自己的帮助程序，如果我知道这个，我会保存至少2周）： http://simpleooxml.codeplex.com/
这是更新单元格所需的内容（writer.PasteText（...））：
MemoryStream stream = SpreadsheetReader.Create();
SpreadsheetDocument doc = SpreadsheetDocument.Open(stream, true);
WorksheetPart worksheetPart = SpreadsheetReader.GetWorksheetPartByName(doc, "Sheet1");
WorksheetWriter writer = new WorksheetWriter(doc, worksheetPart);
writer.PasteText("B2", "Hello World");
//Save to the memory stream
SpreadsheetWriter.Save(doc);
byte[] result = stream.ToArray();
FileStream file = new FileStream(@"D:\x1.xlsx", FileMode.Create);
file.Write(result, 0, result.Length);
file.Close();
答案 2 :(得分：4)
@CDonner发布的代码引发了一些异常，我添加了一些代码来处理代码，这会抛出异常，这里是
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Spreadsheet;
using System.Xml;
using System.IO;
using System.Diagnostics;
namespace Application.Model{
public class TempCode
{
public TempCode()
{
UpdateCell("E:/Visual Studio Code/Book1.xlsx", "120", 1, "A");
UpdateCell("E:/Visual Studio Code/Book1.xlsx", "220", 2, "B");
UpdateCell("E:/Visual Studio Code/Book1.xlsx", "320", 3, "C");
UpdateCell("E:/Visual Studio Code/Book1.xlsx", "420", 4, "D");
UpdateCell("E:/Visual Studio Code/Book1.xlsx", "520", 5, "E");
ProcessStartInfo startInfo = new ProcessStartInfo("E:/Visual Studio Code/Book1.xlsx");
startInfo.WindowStyle = ProcessWindowStyle.Normal;
Process.Start(startInfo);
}
public static void UpdateCell(string docName, string text,uint rowIndex, string columnName){
// Open the document for editing.
using (SpreadsheetDocument spreadSheet = SpreadsheetDocument.Open(docName, true))
{
WorksheetPart worksheetPart = GetWorksheetPartByName(spreadSheet, "Sheet2");
if (worksheetPart != null)
{
Cell cell = GetCell(worksheetPart.Worksheet, columnName, rowIndex);
cell.CellValue = new CellValue(text);
cell.DataType = new EnumValue<CellValues>(CellValues.Number);
// Save the worksheet.
worksheetPart.Worksheet.Save();
}
}
}
private static WorksheetPart GetWorksheetPartByName(SpreadsheetDocument document, string sheetName){
IEnumerable<Sheet> sheets =document.WorkbookPart.Workbook.GetFirstChild<Sheets>().
Elements<Sheet>().Where(s => s.Name == sheetName);
if (sheets.Count() == 0){
return null;
}
string relationshipId = sheets.First().Id.Value;
WorksheetPart worksheetPart = (WorksheetPart)document.WorkbookPart.GetPartById(relationshipId);
return worksheetPart;
}
private static Cell GetCell(Worksheet worksheet, string columnName, uint rowIndex)
{
Row row;
string cellReference = columnName + rowIndex;
if (worksheet.Elements<Row>().Where(r => r.RowIndex == rowIndex).Count() != 0)
row = worksheet.GetFirstChild<SheetData>().Elements<Row>().Where(r => r.RowIndex == rowIndex).FirstOrDefault();
else{
row = new Row() { RowIndex = rowIndex };
worksheet.Append(row);
}
if (row == null)
return null;
if (row.Elements<Cell>().Where(c => c.CellReference.Value == cellReference).Count() > 0) {
return row.Elements<Cell>().Where(c => c.CellReference.Value == cellReference).First();
}
else{
Cell refCell = null;
foreach (Cell cell in row.Elements<Cell>()){
if (string.Compare(cell.CellReference.Value, cellReference, true) > 0){
refCell = cell;
break;
}
}
Cell newCell = new Cell() {
CellReference = cellReference,
StyleIndex = (UInt32Value)1U
};
row.InsertBefore(newCell, refCell);
worksheet.Save();
return newCell;
}
}
}
}
答案 3 :(得分：2)
这是SDK 2.5，但是，这里的代码非常有用：http://fczaja.blogspot.dk/2013/05/how-to-read-and-write-excel-cells-with.html
需要对文本值稍作修改才能将其添加到SharedStringTablePart。
// Given text and a SharedStringTablePart, creates a SharedStringItem with the specified text
// and inserts it into the SharedStringTablePart. If the item already exists, returns its index.
private static int InsertSharedStringItem(string text, SharedStringTablePart shareStringPart)
{
// If the part does not contain a SharedStringTable, create one.
if (shareStringPart.SharedStringTable == null)
{
shareStringPart.SharedStringTable = new SharedStringTable();
}
int i = 0;
// Iterate through all the items in the SharedStringTable. If the text already exists, return its index.
foreach (SharedStringItem item in shareStringPart.SharedStringTable.Elements<SharedStringItem>())
{
if (item.InnerText == text)
{
return i;
}
i++;
}
// The text does not exist in the part. Create the SharedStringItem and return its index.
shareStringPart.SharedStringTable.AppendChild(new SharedStringItem(new Text(text)));
shareStringPart.SharedStringTable.Save();
return i;
}
并像这样使用它：
SharedStringTablePart shareStringPart = GetSharedStringTablePart(excelDoc);
// Insert the text into the SharedStringTablePart.
int index = InsertSharedStringItem(cellValue, shareStringPart);
// Set the value of cell A1.
cell.CellValue = new CellValue(index.ToString());
cell.DataType = new EnumValue<CellValues>(CellValues.SharedString);
答案 4 :(得分：0)
我对@AZ代码做了一些更改。
首先，在GetCell函数上，选择当前行时出现问题。只需改变：
if (worksheet.GetFirstChild<SheetData>().Elements<Row>().Where(r => r.RowIndex == rowIndex).Count() != 0)
而不是：
if (worksheet.Elements<Row>().Where(r => r.RowIndex == rowIndex).Count() != 0)
在以下部分：
if (string.Compare(cell.CellReference.Value, cellReference, true) > 0)
如果您使用Z Column上方的列（例如AA列）将无法正常工作。对于某些人，我使用列号来确定插入Cell的位置。
为此，我创建了一个函数ColumnIndex，将列字母转换为数字：
private static int ColumnIndex(string reference)
{
int ci = 0;
reference = reference.ToUpper();
for (int ix = 0; ix < reference.Length && reference[ix] >= 'A'; ix++)
ci = (ci * 26) + ((int)reference[ix] - 64);
return ci;
}
所以我改变了字符串比较功能：
string columnNew = new String(cellReference.Where(c => c != '-' && (c < '0' || c > '9')).ToArray());
foreach (Cell cell in row.Elements<Cell>())
{
string columnBase = new String(cell.CellReference.Value.Where(c => c != '-' && (c < '0' || c > '9')).ToArray());
if (ColumnIndex(columnBase) > ColumnIndex(columnNew))
{
refCell = cell;
break;
}
}
最诚挚的问候。
答案 5 :(得分：0)
var sheetData = new SheetData();
var row = UpdateCell("A","Hello World", 5);
sheetData.Append(row);
worksheet.Append(sheetData);
private static Row UpdateCell(string columnName,string value uint rowIndex)
{
Row row = new Row { RowIndex = (uint)rowIndex };
Cell c1 = new TextCell(columnName, value, rowIndex);
row.Append(c1);
return row;
}
公共类TextCell：单元格 { 公共TextCell（字符串标题，字符串文本，int索引） { this.DataType = CellValues.InlineString; this.CellReference =标头+索引； //将文本添加到文本单元格。 this.InlineString = new InlineString {文本=新文本{文本=文本}}; } }