Add SqlConnectionEncryptOptionConverter class which is used to conver…

…t string Encrypt option into SqlConnectionEncryptionOption type.

doc/snippets/Microsoft.Data.SqlClient/SqlConnectionEncryptOptionConverter.xml

@@ -0,0 +1,51 @@
+<?xml version="1.0"?>
+<docs>
+  <members name="SqlConnectionEncryptOptionConverter">
+    <SqlConnectionEncryptOption>
+      <summary>Converts a string Sql Connection Encrypt option into SqlConnectionEncryptOption object</summary>
+      <remarks>
+        <para>
+          ## Remarks  
+Implicit conversions have been added to maintain backwards compatibility with boolean behahavior for the <see cref="Microsoft.Data.SqlClient.SqlConnectionStringBuilder.Encrypt" /> property. When converting from a boolean, a value of `true` converts to <see cref="Microsoft.Data.SqlClient.SqlConnectionEncryptOption.Mandatory" /> and a value of `false` converts to <see cref="Microsoft.Data.SqlClient.SqlConnectionEncryptOption.Optional"/>. When converting to a boolean, <see cref="Microsoft.Data.SqlClient.SqlConnectionEncryptOption.Mandatory"/>, <see cref="Microsoft.Data.SqlClient.SqlConnectionEncryptOption.Strict"/> , and `null` convert to `true` and <see cref="Microsoft.Data.SqlClient.SqlConnectionEncryptOption.Optional"/> converts `false`.
+        </para>
+      </remarks>
+    </SqlConnectionEncryptOption>
+    <CanConvertFrom>
+      <summary>
+        If the source type is a string then conversion is allowed <see cref="T:Microsoft.Data.SqlClient.SqlConnectionEncryptOption"/>.
+      </summary>
+      <param name="value">A string containing the value to convert.</param>
+      <returns>
+        <see langword="true" /> if the <paramref name="value"/> parameter can be converted successfully; otherwise, <see langword="false" />.
+      </returns>
+      <remarks>This method does not throw an exception.</remarks>
+    </CanConvertFrom>
+    <ConvertFrom>
+      <summary>
+        Converts the specified string representation of a logical value to its <see cref="T:Microsoft.Data.SqlClient.SqlConnectionEncryptOption"/> equivalent.
+      </summary>
+      <param name="value">A string containing the value to convert.</param>
+      <param name="result">
+        An object that is equivalent to <see cref="T:Microsoft.Data.SqlClient.SqlConnectionEncryptOption"/>.
+      </param>
+      <returns>
+        An object that is equivalent to <see cref="T:Microsoft.Data.SqlClient.SqlConnectionEncryptOption"/> with value of <paramref name="value"/> if conversion was successful;
+        otherwise, an exception is thrown.
+      </returns>
+      <remarks>This method throws an exception if conversion fails.</remarks>
+    </ConvertFrom>
+    <ConvertTo>
+      <summary>
+        Converts an object <see cref="T:Microsoft.Data.SqlClient.SqlConnectionEncryptOption"/> value to its string representation.
+      </summary>
+      <param name="value">An object <see cref="T:Microsoft.Data.SqlClient.SqlConnectionEncryptOption"/> containing the value to convert.</param>
+      <param name="result">
+        A string representation of the value of <see cref="T:Microsoft.Data.SqlClient.SqlConnectionEncryptOption"/>.
+      </param>
+      <returns>
+        A string representation of the value of <see cref="T:Microsoft.Data.SqlClient.SqlConnectionEncryptOption"/>.
+      </returns>
+      <remarks>This method does not throw an exception if conversion fails.</remarks>
+    </ConvertTo>
+  </members>
+</docs>

src/Microsoft.Data.SqlClient.sln

@@ -121,6 +121,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Microsoft.Data.SqlClient",
 		..\doc\snippets\Microsoft.Data.SqlClient\SqlConnectionAttestationProtocol.xml = ..\doc\snippets\Microsoft.Data.SqlClient\SqlConnectionAttestationProtocol.xml
 		..\doc\snippets\Microsoft.Data.SqlClient\SqlConnectionColumnEncryptionSetting.xml = ..\doc\snippets\Microsoft.Data.SqlClient\SqlConnectionColumnEncryptionSetting.xml
 		..\doc\snippets\Microsoft.Data.SqlClient\SqlConnectionEncryptOption.xml = ..\doc\snippets\Microsoft.Data.SqlClient\SqlConnectionEncryptOption.xml
+		..\doc\snippets\Microsoft.Data.SqlClient\SqlConnectionEncryptOptionConverter.xml = ..\doc\snippets\Microsoft.Data.SqlClient\SqlConnectionEncryptOptionConverter.xml
 		..\doc\snippets\Microsoft.Data.SqlClient\SqlConnectionStringBuilder.xml = ..\doc\snippets\Microsoft.Data.SqlClient\SqlConnectionStringBuilder.xml
 		..\doc\snippets\Microsoft.Data.SqlClient\SqlCredential.xml = ..\doc\snippets\Microsoft.Data.SqlClient\SqlCredential.xml
 		..\doc\snippets\Microsoft.Data.SqlClient\SqlDataAdapter.xml = ..\doc\snippets\Microsoft.Data.SqlClient\SqlDataAdapter.xml

src/Microsoft.Data.SqlClient/netcore/src/Microsoft.Data.SqlClient.csproj

@@ -330,6 +330,9 @@
     <Compile Include="..\..\src\Microsoft\Data\SqlClient\SqlConnectionEncryptOption.cs">
       <Link>Microsoft\Data\SqlClient\SqlConnectionEncryptOption.cs</Link>
     </Compile>
+    <Compile Include="..\..\src\Microsoft\Data\SqlClient\SqlConnectionEncryptOptionConverter.cs">
+      <Link>Microsoft\Data\SqlClient\SqlConnectionEncryptOptionConverter.cs</Link>
+    </Compile>
     <Compile Include="..\..\src\Microsoft\Data\SqlClient\SqlConnectionPoolGroupProviderInfo.cs">
       <Link>Microsoft\Data\SqlClient\SqlConnectionPoolGroupProviderInfo.cs</Link>
     </Compile>

src/Microsoft.Data.SqlClient/netfx/src/Microsoft.Data.SqlClient.csproj

@@ -422,6 +422,9 @@
     <Compile Include="..\..\src\Microsoft\Data\SqlClient\SqlConnectionEncryptOption.cs">
       <Link>Microsoft\Data\SqlClient\SqlConnectionEncryptOption.cs</Link>
     </Compile>
+    <Compile Include="..\..\src\Microsoft\Data\SqlClient\SqlConnectionEncryptOptionConverter.cs">
+      <Link>Microsoft\Data\SqlClient\SqlConnectionEncryptOptionConverter.cs</Link>
+    </Compile>
     <Compile Include="..\..\src\Microsoft\Data\SqlClient\SqlConnectionPoolGroupProviderInfo.cs">
       <Link>Microsoft\Data\SqlClient\SqlConnectionPoolGroupProviderInfo.cs</Link>
     </Compile>

src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/SqlConnectionEncryptOption.cs

@@ -3,11 +3,13 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
+using System.ComponentModel;
 using Microsoft.Data.Common;
 
 namespace Microsoft.Data.SqlClient
 {
     /// <include file='../../../../../../doc/snippets/Microsoft.Data.SqlClient/SqlConnectionEncryptOption.xml' path='docs/members[@name="SqlConnectionEncryptOption"]/SqlConnectionEncryptOption/*'/>
+    [TypeConverter(typeof(SqlConnectionEncryptOptionConverter))]
     public sealed class SqlConnectionEncryptOption
     {
         private const string TRUE = "True";

src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/SqlConnectionEncryptOptionConverter.cs

@@ -0,0 +1,46 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+
+using System;
+using System.ComponentModel;
+using System.Globalization;
+using System.Drawing;
+
+namespace Microsoft.Data.SqlClient
+{
+    /// <include file='../../../../../../doc/snippets/Microsoft.Data.SqlClient/SqlConnectionEncryptOptionConverter.xml' path='docs/members[@name="SqlConnectionEncryptOptionConverter"]/SqlConnectionEncryptOptionConverter/*'/>
+    public class SqlConnectionEncryptOptionConverter : TypeConverter
+    {
+        // Overrides the CanConvertFrom method of TypeConverter.
+        // The ITypeDescriptorContext interface provides the context for the
+        // conversion. Typically, this interface is used at design time to 
+        // provide information about the design-time container.
+        /// <include file='../../../../../../doc/snippets/Microsoft.Data.SqlClient/SqlConnectionEncryptOptionConverter.xml' path='docs/members[@name="SqlConnectionEncryptOptionConverter"]/SqlConnectionEncryptOptionConverter/CanConvertFrom/*'/>
+        public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
+        {
+            if (sourceType == typeof(string))
+            {
+                return true;
+            }
+            return base.CanConvertFrom(context, sourceType);
+        }
+        // Overrides the ConvertFrom method of TypeConverter.
+        /// <include file='../../../../../../doc/snippets/Microsoft.Data.SqlClient/SqlConnectionEncryptOptionConverter.xml' path='docs/members[@name="SqlConnectionEncryptOptionConverter"]/SqlConnectionEncryptOptionConverter/ConvertFrom/*'/>
+        public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
+        {
+            if (value is string)
+            {
+                return SqlConnectionEncryptOption.Parse(value.ToString());
+            }
+            throw new Exception("Value to convert must be of string type!");
+        }
+        // Overrides the ConvertTo method of TypeConverter.
+        /// <include file='../../../../../../doc/snippets/Microsoft.Data.SqlClient/SqlConnectionEncryptOptionConverter.xml' path='docs/members[@name="SqlConnectionEncryptOptionConverter"]/SqlConnectionEncryptOptionConverter/ConvertTo/*'/>
+        public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
+        {
+            return base.ConvertTo(context, culture, value, destinationType);
+        }
+    }
+}

src/Microsoft.Data.SqlClient/tests/FunctionalTests/Microsoft.Data.SqlClient.Tests.csproj

@@ -66,6 +66,7 @@
     <Compile Include="..\..\src\Microsoft\Data\Common\MultipartIdentifier.cs" />
   </ItemGroup>
   <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="6.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="$(MicrosoftNETTestSdkVersion)" />
     <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="$(SystemDiagnosticsDiagnosticSourceVersion)" />
     <PackageReference Include="Newtonsoft.Json" Version="$(NewtonsoftJsonVersion)" />

src/Microsoft.Data.SqlClient/tests/FunctionalTests/SqlConnectionStringBuilderTest.cs

@@ -4,6 +4,12 @@
 
 using System;
 using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.IO;
+using System.Text;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 using Xunit;
 
 namespace Microsoft.Data.SqlClient.Tests
@@ -468,6 +474,36 @@ public void EncryptTryParseInvalidValuesReturnsFalse(string value)
             Assert.Null(result);
         }
 
+        [Theory]
+        [InlineData("false","False")]
+        [InlineData("true", "True")]
+        [InlineData("strict", "Strict")]
+        [InlineData("mandatory","True")]
+        [InlineData("optional", "False")]
+        [InlineData("yes", "True")]
+        [InlineData("no", "False")]
+        [InlineData("absolutely", "True")]
+        [InlineData("affirmative", "True")]
+        [InlineData("never", "True")]
+        [InlineData("always", "True")]
+        [InlineData("none", "True")]
+        public void ConnectionStringFromJsonTests(string value, string expectedValue)
+        {
+            ExecuteConnectionStringFromJsonTests(value, expectedValue);
+        }
+
+        [Theory]
+        [InlineData("absolutely")]
+        [InlineData("affirmative")]
+        [InlineData("never")]
+        [InlineData("always")]
+        [InlineData("none")]
+        [InlineData(" for sure ")]
+        public void ConnectionStringFromJsonThrowsException(string value)
+        {
+            ExecuteConnectionStringFromJsonThrowsException(value);
+        }
+
         internal void ExecuteConnectionStringTests(string connectionString)
         {
             SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder(connectionString);
@@ -495,5 +531,62 @@ internal static void CheckEncryptType(SqlConnectionStringBuilder builder, SqlCon
             Assert.IsType<SqlConnectionEncryptOption>(builder.Encrypt);
             Assert.Equal(expectedValue, builder.Encrypt);
         }
+
+        internal void ExecuteConnectionStringFromJsonTests(string encryptOption, string result)
+        {
+            var settings = LoadSettingsFromJsonStream<UserDbConnectionStringSettings>(encryptOption);
+            var connectionString = settings!.UserDb!.ToString();
+            Assert.Contains($"Encrypt={result}", connectionString, StringComparison.InvariantCultureIgnoreCase);
+        }
+
+        internal void ExecuteConnectionStringFromJsonThrowsException(string encryptOption)
+        {
+            Assert.Throws<System.InvalidOperationException>(() => LoadSettingsFromJsonStream<UserDbConnectionStringSettings>(encryptOption));
+        }
+
+        TSettings LoadSettingsFromJsonStream<TSettings>(string encryptOption) where TSettings : class
+        {
+            TSettings settingsOut = null;
+
+            Host.CreateDefaultBuilder()
+                .ConfigureAppConfiguration((ctx, configBuilder) =>
+                {
+                    // Note: Inside string interpolation, a { should be {{ and a } should be }}
+                    // First, declare a stringified JSON
+                    var json = $"{{ \"UserDb\": {{ \"UserComponents\": {{ \"NetworkLibrary\": \"DBMSSOCN\", \"UserID\": \"user\", \"Password\": \"password\", \"DataSource\": \"localhost\", \"InitialCatalog\": \"catalog\", \"Encrypt\": \"{encryptOption}\" }}}}}}";
+
+                    // Load the stringified JSON as a stream into the configuration builder
+                    configBuilder.AddJsonStream(new MemoryStream(Encoding.ASCII.GetBytes(json)));
+                    configBuilder.AddEnvironmentVariables();
+                })
+                .ConfigureServices((ctx, services) =>
+                {
+                    var configuration = ctx.Configuration;
+                    services.AddOptions();
+                    services.Configure<TSettings>(ctx.Configuration);
+                    settingsOut = configuration.Get<TSettings>();
+                })
+                .Build();
+
+            return settingsOut;
+        }
+    }
+
+    // These 2 classes will be used by ConnectionStringFromJsonTests only
+    internal class UserDbConnectionStringSettings
+    {
+        [Required]
+        public UserSqlConnectionString UserDb { get; set; }
+    }
+
+    internal class UserSqlConnectionString
+    {
+        public SqlConnectionStringBuilder UserComponents { get; set; } = new();
+
+        public override string ToString()
+        {
+            return UserComponents!.ConnectionString;
+        }
     }
+
 }