993981-How to skip the unknown variables while using template marker

FAQ/Template Marker/.NET/TemplateMarker/TemplateMarker.slnx

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+<Solution>
+  <Project Path="TemplateMarker/TemplateMarker.csproj" />
+</Solution>

FAQ/Template Marker/.NET/TemplateMarker/TemplateMarker/Program.cs

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+using Syncfusion.XlsIO;
+using System.Data;
+
+
+class Program
+{
+    static void Main(string[] args)
+    {
+        using (ExcelEngine excelEngine = new ExcelEngine())
+        {
+            IApplication application = excelEngine.Excel;
+            IWorkbook workbook = application.Workbooks.Open(Path.GetFullPath(@"Data/InputTemplate.xlsx"));
+
+            DataTable reports1 = new DataTable();
+            reports1.Columns.Add("SalesPerson");
+            reports1.Columns.Add("FromDate", typeof(DateTime));
+            reports1.Columns.Add("ToDate", typeof(DateTime));
+            reports1.Rows.Add("Andy Bernard", new DateTime(2014, 09, 08), new DateTime(2014, 09, 11));
+            reports1.Rows.Add("Jim Halpert", new DateTime(2014, 09, 11), new DateTime(2014, 09, 15));
+
+            //Create Template Marker Processor for Reports1
+            ITemplateMarkersProcessor marker1 = workbook.CreateTemplateMarkersProcessor();
+            //Add collection to marker variable
+            marker1.AddVariable("Reports1", reports1, VariableTypeAction.None);
+            //Process the markers in the template. And use UnknownVariableAction.Skip to skip the exception.
+            marker1.ApplyMarkers(UnknownVariableAction.Skip);
+
+            DataTable reports2 = new DataTable();
+            reports2.Columns.Add("SalesPerson");
+            reports2.Columns.Add("FromDate", typeof(DateTime));
+            reports2.Columns.Add("ToDate", typeof(DateTime));
+            reports2.Rows.Add("Karen Fillippelli", new DateTime(2014, 09, 15), new DateTime(2014, 09, 20));
+            reports2.Rows.Add("Phyllis Lapin", new DateTime(2014, 09, 21), new DateTime(2014, 09, 25));
+            reports2.Rows.Add("Stanley Hudson", new DateTime(2014, 09, 26), new DateTime(2014, 09, 30));
+
+            //Create Template Marker Processor for Reports2
+            ITemplateMarkersProcessor marker2 = workbook.CreateTemplateMarkersProcessor();
+            //Add collection to marker variable
+            marker2.AddVariable("Reports2", reports2, VariableTypeAction.None);
+            //Process the markers in the template
+            marker2.ApplyMarkers();
+
+            //Saving the workbook
+            workbook.Version = ExcelVersion.Xlsx;
+            workbook.SaveAs(Path.GetFullPath(@"Output/TemplateMarker.xlsx"));
+        }
+    }
+}

FAQ/Template Marker/.NET/TemplateMarker/TemplateMarker/TemplateMarker.csproj

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