261512-How to set traffic lights icon in Excel conditional formatting using XlsIO?

FAQ/Conditional Formatting/.NET/Traffic lights icon/README.md

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+# How to set traffic lights icon in Excel conditional formatting using C#?
+
+Step 1: Create a New C# Console Application Project.
+
+Step 2: Name the Project.
+
+Step 3: Install the [Syncfusion.XlsIO.Net.Core](https://www.nuget.org/packages/Syncfusion.XlsIO.Net.Core) NuGet package as reference to your .NET Standard applications from [NuGet.org](https://www.nuget.org).
+
+Step 4: Include the following namespaces in the **Program.cs** file.
+
+```csharp
+using System;
+using System.IO;
+using Syncfusion.XlsIO;
+```
+
+Step 5: Include the below code snippet in **Program.cs** to set traffic lights icon in Excel conditional formatting using C# 
+```csharp
+using (ExcelEngine excelEngine = new ExcelEngine())
+{
+    IApplication application = excelEngine.Excel;
+    application.DefaultVersion = ExcelVersion.Excel2013;
+    IWorkbook workbook = application.Workbooks.Create(1);
+    IWorksheet worksheet = workbook.Worksheets[0];
+
+    //Add data and formatting to the worksheet
+    worksheet.Range["A1"].Text = "Traffic Lights";
+
+    //Add percentage values to cells A2 to A7 and format them as percentages
+    worksheet.Range["A2"].Number = 0.95;
+    worksheet.Range["A2"].NumberFormat = "0%";
+    worksheet.Range["A3"].Number = 0.5;
+    worksheet.Range["A3"].NumberFormat = "0%";
+    worksheet.Range["A4"].Number = 0.1;
+    worksheet.Range["A4"].NumberFormat = "0%";
+    worksheet.Range["A5"].Number = 0.9;
+    worksheet.Range["A5"].NumberFormat = "0%";
+    worksheet.Range["A6"].Number = 0.7;
+    worksheet.Range["A6"].NumberFormat = "0%";
+    worksheet.Range["A7"].Number = 0.6;
+    worksheet.Range["A7"].NumberFormat = "0%";
+
+    //Adjust row height and column width of the used range
+    worksheet.UsedRange.RowHeight = 20;
+    worksheet.UsedRange.ColumnWidth = 25;
+
+    //Apply the first conditional format
+    IConditionalFormats condition = worksheet.UsedRange.ConditionalFormats;
+    IConditionalFormat condition1 = condition.AddCondition();
+
+    condition1.FormatType = ExcelCFType.CellValue;
+    condition1.FirstFormula = "300";
+    condition1.Operator = ExcelComparisonOperator.Less;
+    condition1.FontColor = ExcelKnownColors.Black;
+    condition1.BackColor = ExcelKnownColors.Sky_blue;
+
+    //Apply the second conditional format
+    IConditionalFormats condition2 = worksheet.UsedRange.ConditionalFormats;
+    IConditionalFormat condition3 = condition2.AddCondition();
+    condition3.FormatType = ExcelCFType.IconSet;
+    IIconSet iconSet = condition3.IconSet;
+    iconSet.IconSet = ExcelIconSetType.ThreeTrafficLights1;
+
+    //Saving the workbook
+    FileStream outputStream = new FileStream("Output.xlsx", FileMode.Create, FileAccess.Write);
+    workbook.SaveAs(outputStream);
+    outputStream.Dispose();
+}
+```
+

FAQ/Conditional Formatting/.NET/Traffic lights icon/Traffic lights icon.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.12.35506.116 d17.12
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Traffic lights icon", "Traffic lights icon\Traffic lights icon.csproj", "{E5911C99-3E19-4A51-906E-6E97D116A4AE}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{E5911C99-3E19-4A51-906E-6E97D116A4AE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E5911C99-3E19-4A51-906E-6E97D116A4AE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E5911C99-3E19-4A51-906E-6E97D116A4AE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E5911C99-3E19-4A51-906E-6E97D116A4AE}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

FAQ/Conditional Formatting/.NET/Traffic lights icon/Traffic lights icon/Program.cs

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+using System;
+using System.IO;
+using Syncfusion.XlsIO;
+
+namespace Traffic_Light
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            using (ExcelEngine excelEngine = new ExcelEngine())
+            {
+                IApplication application = excelEngine.Excel;
+                application.DefaultVersion = ExcelVersion.Excel2013;
+                IWorkbook workbook = application.Workbooks.Create(1);
+                IWorksheet worksheet = workbook.Worksheets[0];
+
+                //Add data and formatting to the worksheet
+                worksheet.Range["A1"].Text = "Traffic Lights";
+
+                //Add percentage values to cells A2 to A7 and format them as percentages
+                worksheet.Range["A2"].Number = 0.95;
+                worksheet.Range["A2"].NumberFormat = "0%";
+                worksheet.Range["A3"].Number = 0.5;
+                worksheet.Range["A3"].NumberFormat = "0%";
+                worksheet.Range["A4"].Number = 0.1;
+                worksheet.Range["A4"].NumberFormat = "0%";
+                worksheet.Range["A5"].Number = 0.9;
+                worksheet.Range["A5"].NumberFormat = "0%";
+                worksheet.Range["A6"].Number = 0.7;
+                worksheet.Range["A6"].NumberFormat = "0%";
+                worksheet.Range["A7"].Number = 0.6;
+                worksheet.Range["A7"].NumberFormat = "0%";
+
+                //Adjust row height and column width of the used range
+                worksheet.UsedRange.RowHeight = 20;
+                worksheet.UsedRange.ColumnWidth = 25;
+
+                //Apply the first conditional format
+                IConditionalFormats condition = worksheet.UsedRange.ConditionalFormats;
+                IConditionalFormat condition1 = condition.AddCondition();
+
+                condition1.FormatType = ExcelCFType.CellValue;
+                condition1.FirstFormula = "300";
+                condition1.Operator = ExcelComparisonOperator.Less;
+                condition1.FontColor = ExcelKnownColors.Black;
+                condition1.BackColor = ExcelKnownColors.Sky_blue;
+
+                //Apply the second conditional format
+                IConditionalFormats condition2 = worksheet.UsedRange.ConditionalFormats;
+                IConditionalFormat condition3 = condition2.AddCondition();
+                condition3.FormatType = ExcelCFType.IconSet;
+                IIconSet iconSet = condition3.IconSet;
+                iconSet.IconSet = ExcelIconSetType.ThreeTrafficLights1;
+
+                //Saving the workbook
+                FileStream outputStream = new FileStream("Output.xlsx", FileMode.Create, FileAccess.Write);
+                workbook.SaveAs(outputStream);
+                outputStream.Dispose();
+            }
+
+        }
+
+    }
+}
+
+

FAQ/Conditional Formatting/.NET/Traffic lights icon/Traffic lights icon/Traffic lights icon.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>Traffic_lights_icon</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+	  <PackageReference Include="Syncfusion.XlsIO.Net.Core" Version="*" />
+  </ItemGroup>
+
+  <ItemGroup>
+	  <None Update="Output\*">
+		  <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+	  </None>
+  </ItemGroup>
+
+</Project>