How To Apply Cell Text & Background Color In An Excel Sheet Using EPPlus (C#) - Part Two

In this tutorial, we will learn step by step Excel development, using .NET library EPPlus.

Apply Excel Cell text color

• In EPPlus, ExcelRange class has a style property. This style property is the type of ExcelStyle (seal) class.
• ExcelStyle class has another ExcelFont (seal) type font properties.
• ExcelFont class has ExcelColor (seal) type colorproperty. ExcelColor has SetColor method. This method can accept Colorstructure object as a parameter.

Example

• ExcelRange Rng = new ExcelRange();
• Rng.Style.Font.Color.SetColor(Color.Red);

*By default, EPPlus supports Black font color, if you are not specifying any Font color.

Now, the next question in our mind is how to set cell background color?

Example

• Rng.Style.Fill.PatternType = ExcelFillStyle.Solid;
• Rng.Style.Fill.BackgroundColor.SetColor(Color.Green);
• Here SetColor method can support structure Color property as a parameter.
• You can also specify the HTML Color code.

*By default, EPPlus supports White background color.

For Example

• Color DeepBlueHexCode = ColorTranslator.FromHtml("#254061");
• Rng.Style.Fill.BackgroundColor.SetColor(DeepBlueHexCode);
• In this example FromHtml() directly accept HTML RGB (Red Green Blue) color Code.

Output on an Excel sheet is given below.

Source code

using OfficeOpenXml;
using System.IO;
using System;
//add two new namespace
using OfficeOpenXml.Style;
using System.Drawing;
class Program {
    static void Main(string[] args) {
        ExcelPackage ExcelPkg = new ExcelPackage();
        ExcelWorksheet wsSheet1 = ExcelPkg.Workbook.Worksheets.Add("Sheet1");
        using(ExcelRange Rng = wsSheet1.Cells[2, 2, 2, 2]) {
            Rng.Value = "Welcome to Everyday be coding - tutorials for beginners";
            Rng.Style.Font.Size = 16;
            Rng.Style.Font.Bold = true;
            Rng.Style.Font.Italic = true;
        }
        //First Border Box
        using(ExcelRange Rng = wsSheet1.Cells[5, 2, 8, 4]) {
            Rng.Value = "Text Color & Background Color";
            Rng.Merge = true;
            Rng.Style.Font.Bold = true;
            Rng.Style.Font.Color.SetColor(Color.Red);
            Rng.Style.Fill.PatternType = ExcelFillStyle.Solid;
            Rng.Style.Fill.BackgroundColor.SetColor(Color.LightBlue);
        }
        wsSheet1.Protection.IsProtected = false;
        wsSheet1.Protection.AllowSelectLockedCells = false;
        ExcelPkg.SaveAs(new FileInfo(@ "D:\New.xlsx"));
    }
}

Now, build & execute the given code. File is (New.xlsx), which is stored on D: drive of the computer.

Thank you for reading this blog.