update code samples

Author: geumjaLee

CS/DataClasses.cs

@@ -1,25 +1,15 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
-    <PropertyGroup>
-      <TargetFramework>net8.0</TargetFramework>
-	  <Nullable>enable</Nullable>
-	  <ImplicitUsings>enable</ImplicitUsings>
-    </PropertyGroup>
+<Project Sdk="Microsoft.NET.Sdk">
+	<PropertyGroup>
+		<OutputType>Exe</OutputType>
+		<TargetFramework>net8.0</TargetFramework>
+		<ImplicitUsings>enable</ImplicitUsings>
+		<Nullable>enable</Nullable>
+	</PropertyGroup>
+
+
     <ItemGroup>
-        <None Update="detail.rtf">
-            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-        </None>
-        <None Update="detaildetail.rtf">
-            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-        </None>
-        <None Update="main.rtf">
-            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-        </None>
-        <None Update="supplier.rtf">
-            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-        </None>
-    </ItemGroup>
-    <ItemGroup>
-        <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
-        <PackageReference Include="DevExpress.RichEdit.Core" Version="24.2.*" />
-    </ItemGroup>
+        <PackageReference Include="DevExpress.Document.Processor" Version="25.2.1-alpha-25295" />
+        <PackageReference Include="DevExpress.Drawing.Skia" Version="25.2.1-alpha-25295" />
+		<PackageReference Include="System.Text.Json" Version="9.0.10" />
+	</ItemGroup>
 </Project>