使用「Openxml writer」在Excel中合併單元格

Question

我想通過使用openxmlwriter的SAX方法在excel中合併單元格。我用這些方法代替了DOM方法，就是要寫出數千條記錄才能成爲excel。

Answer 1

我分享這段代碼可以幫助別人使用OpenXmlWriter（OpenXML的SAX）

 /*OpenXMLWriter to write large data to excel to avoid System.OutOfMemoryException*/ 
       OpenXmlWriter oxw = OpenXmlWriter.Create(wsPart); 
       oxw.WriteStartElement(new Worksheet()); 
       /*Excel column style */ 
       oxw.WriteStartElement(new Columns()); 
       foreach (var item in gridHeaderList) 
       { 
        oxw.WriteStartElement(new Column(), new List<OpenXmlAttribute>() 
        { new OpenXmlAttribute("min", null, (item.columnIndex + 1).ToString()), 
         new OpenXmlAttribute("max", null, (item.columnIndex + 1).ToString()), 
         new OpenXmlAttribute("width", null, item.columnWidth.ToString()) 
        } 
        ); 

        oxw.WriteEndElement(); 
       } 

       oxw.WriteEndElement(); 
       /*End of Columns element node*/ 

       /*Sheet data node*/ 
       oxw.WriteStartElement(new SheetData()); 

       oxw.WriteStartElement(new Row()); 
       foreach (var item in dataList) 
       { 
        oxw.WriteElement(new Cell() { CellValue = new CellValue(item.Value), DataType = CellValues.String, StyleIndex = item.styleIndex }); 
       } 
       oxw.WriteEndElement(); 

       oxw.WriteEndElement(); 
       /*End of sheetdata element node*/ 

       /*Start of MergeCells element node NOTE: Make sure initialize "A6:D6" range cells   */  
    oxw.WriteStartElement(new MergeCells()); 
        oxw.WriteElement(new MergeCell() { Reference = new StringValue("A6:D6") }); 
        oxw.WriteEndElement(); 
        /*End of MergeCells element node*/ 


       oxw.WriteEndElement(); 
       /*End of worksheet element node*/ 

       oxw.Close();