Erstellen von benutzerdefinierten Spaltenbreiten in OpenXML (excel)

Ich bin neu in OpenXML - (v. 2.5), und ich kann schaffen, Zeilen und Zellen, aber ich muss in der Lage sein, die Spaltenbreite und ich kann das nicht richtig aus irgendeinem Grund.

Ohne diesen code:

        Columns cols = new Columns();

        Column c1 = new Column()
        {
            CustomWidth = true,
            Width = 20
        };

        cols.Append(c1);
        wspart.Worksheet.Append(cols);

Läuft das Programm und generiert eine excel-Datei fein.

Den code unten hält und läuft, aber lässt mich mit einem beschädigten excel-Dokument. Was mache ich falsch, wenn ich versuche, Sie zu Spalten hinzufügen?

    public static void createExcel() //TODO change to private
    {
        //create the spreadsheet document with openxml See https://msdn.microsoft.com/en-us/library/office/ff478153.aspx
        SpreadsheetDocument spreadsheetDoc = SpreadsheetDocument.Create(@"C:\Users\Reid\Documents\BLA\test.xlsx", SpreadsheetDocumentType.Workbook); //TODO change path

        //add a workbook part
        WorkbookPart wbpart = spreadsheetDoc.AddWorkbookPart();
        wbpart.Workbook = new Workbook();

        //add a worksheet part
        WorksheetPart wspart = wbpart.AddNewPart<WorksheetPart>();
        Worksheet ws = new Worksheet(new SheetData());
        wspart.Worksheet = ws;

        //create a new sheets array
        Sheets sheets = spreadsheetDoc.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets());

        //create a new sheet
        Sheet sheet = new Sheet()
        {
            Id = spreadsheetDoc.WorkbookPart.GetIdOfPart(wspart),
            SheetId = 1,
            Name = "mySheet" //TODO change name
        };

        //add the sheet to the workbook sheet aray
        sheets.Append(sheet);

        SheetData shData = wspart.Worksheet.GetFirstChild<SheetData>();

        //////////////////////////////////row and col widths//////////////////////
        Columns cols = new Columns();

        Column c1 = new Column()
        {
            CustomWidth = true,
            Width = 20
        };

        cols.Append(c1);
        wspart.Worksheet.Append(cols);

        //create the first row
        Row r1 = new Row
        {
            RowIndex = 1,
            CustomHeight = true,
            Height = 71.25 //change height based on info
        };
        shData.Append(r1);
  ////////////////////////cell data/////////////////////////////////

        //In the new row, find the column location to insert a cell in A1.
        Cell refCell = null;
        foreach (Cell cell in r1.Elements<Cell>())
        {
            if (string.Compare(cell.CellReference.Value, "A1", true) > 0)
            {
                refCell = cell;
                break;
            }
        }
        //Add the cell to the cell table at A1.
        Cell newCell = new Cell() {
            CellReference = "A1",
        };
        r1.InsertBefore(newCell, refCell);

        //Set the cell value to be a numeric value of 100.
        newCell.CellValue = new CellValue("100");


        //TODO add in standard things (text that is always the same, headers, logos, etc.)

        //TODO add in dynamic text

        //TODO create and add in barcodes

        //Save and close the document
        wbpart.Workbook.Save();
        spreadsheetDoc.Close();

        //TODO send document to database
    }

InformationsquelleAutor Reid | 2015-12-19