992760 - How to Set the First Item in a List as the Default Selected Value in an Excel File Using XlsIO

FAQ/List Validation/.NET/List Validation/List Validation.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36623.8 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "List Validation", "List Validation\List Validation.csproj", "{EF8B2D4A-88EF-4932-9607-F09D20F83E07}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{EF8B2D4A-88EF-4932-9607-F09D20F83E07}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EF8B2D4A-88EF-4932-9607-F09D20F83E07}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EF8B2D4A-88EF-4932-9607-F09D20F83E07}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EF8B2D4A-88EF-4932-9607-F09D20F83E07}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {F35CF8F7-3DB8-48BD-A3B8-65D93A4FDEE7}
+	EndGlobalSection
+EndGlobal

FAQ/List Validation/.NET/List Validation/List Validation/List Validation.csproj

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

FAQ/List Validation/.NET/List Validation/List Validation/Program.cs

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+using Syncfusion.XlsIO;
+
+class Program
+{
+    static void Main(string[] args)
+    {
+        using (ExcelEngine excelEngine = new ExcelEngine())
+        {
+            IApplication application = excelEngine.Excel;
+            application.DefaultVersion = ExcelVersion.Xlsx;
+            IWorkbook workbook = application.Workbooks.Create(1);
+            IWorksheet worksheet = workbook.Worksheets[0];
+
+            worksheet["A1"].Value = "ListItem1";
+            worksheet["A2"].Value = "ListItem2";
+            worksheet["A3"].Value = "ListItem3";
+            worksheet["A4"].Value = "ListItem4";
+
+            worksheet.Range["C1"].Text = "Data Validation List in C3";
+            worksheet.Range["C1"].AutofitColumns();
+
+            //Data validation for the list
+            IDataValidation listValidation = worksheet.Range["C3"].DataValidation;        
+            listValidation.DataRange = worksheet.Range["A1:A4"];
+
+            //Set the first item in the list as default value
+            worksheet.Range["C3"].Value = worksheet.Range["C3"].DataValidation.DataRange.Cells[0].Value;
+
+
+            #region Save
+            //Saving the workbook
+            workbook.SaveAs("../../../Output/ListValidation.xlsx");
+            #endregion
+        }
+    }
+
+
+}
+