GemBox.Spreadsheet is a .NET component that enables you to read, write, edit, convert, and print spreadsheet files from your .NET applications using one simple API.

Unit Conversion

Utility class LengthUnitConverter can be used to convert values between various measurement units and the following example demonstrates how to use it.

See the full code below, use Run Example to execute.

C#
VB.NET

using System;
using System.Collections.Generic;
using System.Text;
using GemBox.Spreadsheet;
using GemBox.Spreadsheet.ConditionalFormatting;
using GemBox.Spreadsheet.PivotTables;
using GemBox.Spreadsheet.Tables;

class Sample
{
    [STAThread]
    static void Main(string[] args)
    {
        // If using Professional version, put your serial key below.
        SpreadsheetInfo.SetLicense("FREE-LIMITED-KEY");

        ExcelFile ef = ExcelFile.Load("IllustrationsAndShapes.xlsx");

        StringBuilder sb = new StringBuilder();

        var ws = ef.Worksheets[0];

        sb.AppendFormat("Sheet left margin is: {0} pixels.", Math.Round(LengthUnitConverter.Convert(ws.PrintOptions.LeftMargin, LengthUnit.Inch, LengthUnit.Pixel)));
        sb.AppendLine();

        sb.AppendFormat("Width of column A is: {0} pixels.", Math.Round(LengthUnitConverter.Convert(ws.Columns[0].Width, LengthUnit.ZeroCharacterWidth256thPart, LengthUnit.Pixel)));
        sb.AppendLine();

        sb.AppendFormat("Height of row 1 is: {0} pixels.", Math.Round(LengthUnitConverter.Convert(ws.Rows[0].Height, LengthUnit.Twip, LengthUnit.Pixel)));
        sb.AppendLine();

        var picture = ws.Pictures[1];
        sb.AppendFormat("Image width x height is: {0} centimeters x {1} centimeters.",
            Math.Round(picture.Position.GetWidth(LengthUnit.Centimeter), 2),
            Math.Round(picture.Position.GetHeight(LengthUnit.Centimeter), 2));

        Console.WriteLine(sb.ToString());
    }
}

Imports System
Imports System.Collections.Generic
Imports System.Text
Imports GemBox.Spreadsheet
Imports GemBox.Spreadsheet.ConditionalFormatting
Imports GemBox.Spreadsheet.PivotTables
Imports GemBox.Spreadsheet.Tables

Module Samples

    Sub Main()

        ' If using Professional version, put your serial key below.
        SpreadsheetInfo.SetLicense("FREE-LIMITED-KEY")

        Dim ef As ExcelFile = ExcelFile.Load("IllustrationsAndShapes.xlsx")

        Dim sb = New StringBuilder()

        Dim ws = ef.Worksheets(0)

        sb.AppendFormat("Sheet left margin is: {0} pixels.", Math.Round(LengthUnitConverter.Convert(ws.PrintOptions.LeftMargin, LengthUnit.Inch, LengthUnit.Pixel)))
        sb.AppendLine()

        sb.AppendFormat("Width of column A is: {0} pixels.", Math.Round(LengthUnitConverter.Convert(ws.Columns(0).Width, LengthUnit.ZeroCharacterWidth256thPart, LengthUnit.Pixel)))
        sb.AppendLine()

        sb.AppendFormat("Height of row 1 is: {0} pixels.", Math.Round(LengthUnitConverter.Convert(ws.Rows(0).Height, LengthUnit.Twip, LengthUnit.Pixel)))
        sb.AppendLine()

        Dim picture = ws.Pictures(1)
        sb.AppendFormat("Image width x height is: {0} centimeters x {1} centimeters.",
         Math.Round(picture.Position.GetWidth(LengthUnit.Centimeter), 2),
         Math.Round(picture.Position.GetHeight(LengthUnit.Centimeter), 2))

        Console.WriteLine(sb.ToString())

    End Sub

End Module

Check next sample.