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在查看很多有复杂的数据的表格时，为了能够快速地找到所需要的数据组时，往往需要对该数据组进行分类，一个简单快速的方法就是对数据组所在的单元格填充背景颜色，这样就使得我们在阅读文件时能够直观的看到数据分类，既美观又实用。那对于开发者而言，我这里提供一个简单快速的方法，即用C#给单元格设置背景颜色。下面是我的操作方法，供参考。我这里使用了一个叫Spire.XLS for . NET的免费版组件，该产品由E-iceblue公司发布，具体详情可上官网了解（https://www.e-iceblue.cn/Introduce/Spire-XLS-NET.html），不废话，下面我演示一下我的操作。
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原文件如图：
步骤：
1、添加命名空间
Using Spire.Xls; Using System.Drawing;
2、初始化工作簿并加载文档
Workbook workbook =new Workbook(); workbook.LoadFromFile(@"C:\Users\Administrator\Desktop\test.xlsx",ExcelVersion.Version97to2003); Worksheet worksheet =workbook.Worksheets[0];Worksheet worksheet = workbook.Worksheets[0];
3、设置单元格背景颜色
worksheet.Range["A1:C2"].Style.Color= Color.LightSeaGreen; worksheet.Range["A3:C4"].Style.Color= Color.LightYellow; worksheet.Range["A5:C19"].Style.Color= Color.SpringGreen; worksheet.Range["A20:C21"].Style.Color = Color.DeepSkyBlue; worksheet.Range["A22:C23"].Style.Color = Color.Yellow
4、保存并预览文件
workbook.SaveToFile("GradesRank.xls",ExcelVersion.Version97to2003;
System.Diagnostics.Process.Start(workbook.FileName);完成以上步骤后文档背景颜色添加成功，如下图所示：
完整代码：
C#
using System.Drawing;
using Spire.Xls;
namespace background_color
{
class Program
{
static void Main(string[] args)
{
Workbook workbook = new Workbook();
workbook.LoadFromFile(@"C:\Users\Administrator\Desktop\test.xlsx", ExcelVersion.Version97to2003);
Worksheet worksheet = workbook.Worksheets[0];
//set the backgroundcolor of Range["A1:C2"]
worksheet.Range["A1:C2"].Style.Color = Color.LightSeaGreen;
//set the backgroundcolor of Range["A3:C4"]
worksheet.Range["A3:C4"].Style.Color = Color.LightYellow;
//set the backgroundcolor of Range["A5:C19"]
worksheet.Range["A5:C19"].Style.Color = Color.SpringGreen;
//set the backgroundcolor of Range["A20:C21"]
worksheet.Range["A20:C21"].Style.Color = Color.DeepSkyBlue;
//set the backgroundcolor of Range["A22:C23"]
worksheet.Range["A22:C23"].Style.Color = Color.Yellow;
//save and launch the project
workbook.SaveToFile("Sample.xls", ExcelVersion.Version97to2003);
System.Diagnostics.Process.Start(workbook.FileName);
}
}
}VB.NET
Imports System.Drawing
Imports Spire.Xls
Namespace background_color
Class Program
Private Shared Sub Main(ByVal args() As String)
Dim workbook As Workbook = New Workbook
workbook.LoadFromFile("C:\Users\Administrator\Desktop\test.xlsx", ExcelVersion.Version97to2003)
Dim worksheet As Worksheet = workbook.Worksheets(0)
'set the backgroundcolor of Range["A1:C2"]
worksheet.Range("A1:C2").Style.Color = Color.LightSeaGreen
'set the backgroundcolor of Range["A3:C4"]
worksheet.Range("A3:C4").Style.Color = Color.LightYellow
'set the backgroundcolor of Range["A5:C19"]
worksheet.Range("A5:C19").Style.Color = Color.SpringGreen
'set the backgroundcolor of Range["A20:C21"]
worksheet.Range("A20:C21").Style.Color = Color.DeepSkyBlue
'set the backgroundcolor of Range["A22:C23"]
worksheet.Range("A22:C23").Style.Color = Color.Yellow
'save and launch the project
workbook.SaveToFile("Sample.xls", ExcelVersion.Version97to2003)
System.Diagnostics.Process.Start(workbook.FileName)
End Sub
End Class
End Namespace