Set text align to center in an Excel document using OpenXML with C#

Question

I have a document that my asp.net page is creating and I need to align the text of certain columns to center. I have opened the document after manually center the columns in openXML SDK but the code that is reflected does not achieve the desired outcome.

private static Column CreateColumnData(UInt32 StartColumnIndex, UInt32 EndColumnIndex, double ColumnWidth)
    {
        Column column;
        column = new Column();
        column.Min = StartColumnIndex;
        column.Max = EndColumnIndex;
        column.Width = ColumnWidth;
        column.CustomWidth = true;
        //the SDK says to add this next line to center the text but it doesn't work
        column.Style = (UInt32Value)6U;

        return column;
    }

Answer 1

I think the issue is that you are trying to style the column , when it is individual cells that need to be formatted to use a specific horizontal alignment.

I looked around and found the following MSDN documentation:

http://msdn.microsoft.com/en-us/library/documentformat.openxml.spreadsheet.cellformat_properties.aspx

http://msdn.microsoft.com/en-us/library/documentformat.openxml.spreadsheet.alignment.aspx

I also found a code example here (Though I didn't test it myself):

http://blogs.msdn.com/b/chrisquon/archive/2009/11/30/stylizing-your-excel-worksheets-with-open-xml-2-0.aspx

I use the Interop most of the time myself, and know that I styled cells and not columns or rows when I wrote up my spreadsheets.

You should be able to create a single style and just apply it a bunch of times to cells as you create them.

Answer 2

Following approach works fine for me

//using OfficeOpenXml;
//using OfficeOpenXml.Style;

workSheet.Cells[rowIndex, 22].Style.HorizontalAlignment = ExcelHorizontalAlignment.Right;

REFERENCES

1. Required basic formatting using open XML SDK
2. Coloring cells in excel sheet using openXML in C#
3. Cell styles in OpenXML spreadsheet (SpreadsheetML)

Answer 3

you can try this to have a merged cell, edit height and columns and align center horizontally and vertically

 var worksheet = wb.Worksheets.Add("Overzicht");

            //  Adding text
            worksheet.Cell("B2").Value = "Overzicht activiteit";
             var rngMainTitle = worksheet.Range("B2:E3");
             rngMainTitle.FirstCell().Style
                 .Font.SetBold()
                 .Fill.SetBackgroundColor(XLColor.CornflowerBlue)
                 .Alignment.SetHorizontal(XLAlignmentHorizontalValues.Center)
                 .Alignment.SetVertical(XLAlignmentVerticalValues.Center);

             //Merge title cells
             rngMainTitle.FirstRow().Merge();
            worksheet.Column(2).Width = 31;
            worksheet.Column(3).Width = 18;
            worksheet.Column(4).Width = 18;
            worksheet.Column(5).Width = 18;
            worksheet.Row(2).Height = 25;

Answer 4

You can just select your cell and set text align:

ws.Cell("A1").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;

ws is your worksheet:

 XLWorkbook workbook = new XLWorkbook();
        var ws = workbook.Worksheets.Add("Text align");

Answer 5

In case you are looking how to aligne text in excel cell, you need to apply the alignement on the cellFormat<\/strong> objects

 CellFormat cellFormat = new CellFormat() { NumberFormatId = 0, FontId = 0, 
 FillId = 0, BorderId = 0, ApplyAlignment = true }; 
 Alignment alignment = new Alignment();
 alignment.Vertical = VerticalAlignmentValues.Center;
 alignment.Horizontal = HorizontalAlignmentValues.Center;
 CellFormat.Alignment = alignment;

Answer 6

Try this

workSheet_range.HorizontalAlignment =
     Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignCenter;