Add support for DateOnly and TimeOnly (SqlParameter value and GetFieldValue(Async) )

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

@@ -327,14 +327,14 @@
 
 |||||  
 |-|-|-|-|  
-|Boolean|Byte|Char|DateTime|  
-|DateTimeOffset|Decimal|Double|Float|  
-|Guid|Int16|Int32|Int64|  
-|SqlBoolean|SqlByte|SqlDateTime|SqlDecimal|  
-|SqlDouble|SqlGuid|SqlInt16|SqlInt32|  
-|SqlInt64|SqlMoney|SqlSingle|SqlString|  
-|Stream|String|TextReader|UDT, which can be any CLR type marked with <xref:Microsoft.Data.SqlClient.Server.SqlUserDefinedTypeAttribute>.|
-|XmlReader||||
+|Boolean|Byte|Char|DateOnly (.NET 6 or later)|  
+|DateTime|DateTimeOffset|Decimal|Double| 
+|Float|Guid|Int16|Int32|
+|Int64|SqlBoolean|SqlByte|SqlDateTime|
+|SqlDecimal|SqlDouble|SqlGuid|SqlInt16|
+|SqlInt32|SqlInt64|SqlMoney|SqlSingle|
+|SqlString|Stream|String|TextReader|
+|TimeOnly (.NET 6 or later)|XmlReader||UDT, which can be any CLR type marked with <xref:Microsoft.Data.SqlClient.Server.SqlUserDefinedTypeAttribute>.|
 
  For more information, see [SqlClient Streaming Support](/sql/connect/ado-net/sqlclient-streaming-support).  
 
@@ -369,14 +369,14 @@
 
 |||||  
 |-|-|-|-|  
-|Boolean|Byte|Char|DateTime|  
-|DateTimeOffset|Decimal|Double|Float|  
-|Guid|Int16|Int32|Int64|  
-|SqlBoolean|SqlByte|SqlDateTime|SqlDecimal|  
-|SqlDouble|SqlGuid|SqlInt16|SqlInt32|  
-|SqlInt64|SqlMoney|SqlSingle|SqlString|  
-|Stream|String|TextReader|UDT, which can be any CLR type marked with <xref:Microsoft.Data.SqlClient.Server.SqlUserDefinedTypeAttribute>.|
-|XmlReader||||
+|Boolean|Byte|Char|DateOnly (.NET 6 or later)|  
+|DateTime|DateTimeOffset|Decimal|Double| 
+|Float|Guid|Int16|Int32|
+|Int64|SqlBoolean|SqlByte|SqlDateTime|
+|SqlDecimal|SqlDouble|SqlGuid|SqlInt16|
+|SqlInt32|SqlInt64|SqlMoney|SqlSingle|
+|SqlString|Stream|String|TextReader|
+|TimeOnly (.NET 6 or later)|XmlReader||UDT, which can be any CLR type marked with <xref:Microsoft.Data.SqlClient.Server.SqlUserDefinedTypeAttribute>.|
 
  For more information, see [SqlClient Streaming Support](/sql/connect/ado-net/sqlclient-streaming-support).  
 

src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/SqlDataReader.cs

@@ -2843,6 +2843,16 @@ private T GetFieldValueFromSqlBufferInternal<T>(SqlBuffer data, _SqlMetaData met
             {
                 return (T)(object)data.DateTime;
             }
+#if NET6_0_OR_GREATER
+            else if (typeof(T) == typeof(DateOnly) && dataType == typeof(DateTime) && _typeSystem > SqlConnectionString.TypeSystem.SQLServer2005 && metaData.Is2008DateTimeType)
+            {
+                return (T)(object)data.DateOnly;
+            }
+            else if (typeof(T) == typeof(TimeOnly) && dataType == typeof(TimeOnly) && _typeSystem > SqlConnectionString.TypeSystem.SQLServer2005 && metaData.Is2008DateTimeType)
+            {
+                return (T)(object)data.TimeOnly;
+            }
+#endif
             else if (typeof(T) == typeof(XmlReader))
             {
                 // XmlReader only allowed on XML types

src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/SqlBuffer.cs

@@ -596,6 +596,37 @@ internal TimeSpan Time
             }
         }
 
+#if NET6_0_OR_GREATER
+        internal TimeOnly TimeOnly
+        {
+            get
+            {
+                ThrowIfNull();
+
+                if (StorageType.Time == _type)
+                {
+                    return new TimeOnly(_value._timeInfo._ticks);
+                }
+
+                return (TimeOnly)Value; // anything else we haven't thought of goes through boxing.
+            }
+        }
+
+        internal DateOnly DateOnly
+        {
+            get
+            {
+                ThrowIfNull();
+
+                if (StorageType.Date == _type)
+                {
+                    return DateOnly.MinValue.AddDays(_value._int32);
+                }
+                return (DateOnly)Value; // anything else we haven't thought of goes through boxing.
+            }
+        }
+#endif
+
         internal DateTimeOffset DateTimeOffset
         {
             get
@@ -1097,7 +1128,7 @@ internal Type GetTypeFromStorageType(bool isSqlType)
                         return typeof(SqlGuid);
                     case StorageType.SqlXml:
                         return typeof(SqlXml);
-                        // Date DateTime2 and DateTimeOffset have no direct Sql type to contain them
+                        // Time Date DateTime2 and DateTimeOffset have no direct Sql type to contain them
                 }
             }
             else
@@ -1144,6 +1175,10 @@ internal Type GetTypeFromStorageType(bool isSqlType)
                         return typeof(DateTime);
                     case StorageType.DateTimeOffset:
                         return typeof(DateTimeOffset);
+#if NET6_0_OR_GREATER
+                    case StorageType.Time:
+                        return typeof(TimeOnly);
+#endif
                 }
             }
 

src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/SqlEnums.cs

@@ -365,6 +365,16 @@ private static MetaType GetMetaTypeFromValue(Type dataType, object value, bool i
                     {
                         return MetaDateTimeOffset;
                     }
+#if NET6_0_OR_GREATER
+                    else if (dataType == typeof(DateOnly))
+                    {
+                        return s_metaDate;
+                    }
+                    else if (dataType == typeof(TimeOnly))
+                    {
+                        return MetaTime;
+                    }
+#endif
                     else
                     {
                         // UDT ?
@@ -630,6 +640,10 @@ internal static object GetSqlValueFromComVariant(object comVal)
                         break;
                     case TimeSpan:
                     case DateTimeOffset:
+#if NET6_0_OR_GREATER
+                    case TimeOnly:
+                    case DateOnly:
+#endif
                         sqlVal = comVal;
                         break;
                     default:
@@ -739,7 +753,7 @@ internal static SqlDbType GetSqlDbTypeFromOleDbType(short dbType, string typeNam
                     break; // no direct mapping, just use SqlDbType.Variant;
             }
             return sqlType;
-#else 
+#else
             // OleDbTypes not supported
             return SqlDbType.Variant;
 #endif // NETFRAMEWORK

src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/SqlParameter.cs

@@ -2252,6 +2252,16 @@ internal static object CoerceValue(object value, MetaType destinationType, out b
                     {
                         value = new DateTimeOffset((DateTime)value);
                     }
+#if NET6_0_OR_GREATER
+                    else if ((currentType == typeof(DateOnly)) && (destinationType.SqlDbType == SqlDbType.Date))
+                    {
+                        value = ((DateOnly)value).ToDateTime(new TimeOnly(0, 0));
+                    }
+                    else if ((currentType == typeof(TimeOnly)) && (destinationType.SqlDbType == SqlDbType.Time))
+                    {
+                        value = ((TimeOnly)value).ToTimeSpan();
+                    }
+#endif
                     else if (
                         TdsEnums.SQLTABLE == destinationType.TDSType &&
                         (

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

@@ -97,6 +97,64 @@ public void Constructor2_Value_DateTime()
             Assert.Equal(string.Empty, p.XmlSchemaCollectionOwningSchema);
         }
 
+#if NET6_0_OR_GREATER
+        [Fact]
+        public void Constructor2_Value_DateOnly()
+        {
+            DateOnly value = new DateOnly(2004, 8, 24);
+            SqlParameter p = new SqlParameter("dateonly", value);
+
+            Assert.Equal(DbType.Date, p.DbType);
+            Assert.Equal(ParameterDirection.Input, p.Direction);
+            Assert.False(p.IsNullable);
+            Assert.Equal(0, p.LocaleId);
+            Assert.Equal(0, p.Offset);
+            Assert.Equal("dateonly", p.ParameterName);
+            Assert.Equal(0, p.Precision);
+            Assert.Equal(0, p.Scale);
+            Assert.Equal(0, p.Size);
+            Assert.Equal(string.Empty, p.SourceColumn);
+            Assert.False(p.SourceColumnNullMapping);
+            Assert.Equal(DataRowVersion.Current, p.SourceVersion);
+            Assert.Equal(SqlDbType.Date, p.SqlDbType);
+            Assert.Equal(value, p.SqlValue);
+            Assert.Equal(string.Empty, p.TypeName);
+            Assert.Equal(string.Empty, p.UdtTypeName);
+            Assert.Equal(value, p.Value);
+            Assert.Equal(string.Empty, p.XmlSchemaCollectionDatabase);
+            Assert.Equal(string.Empty, p.XmlSchemaCollectionName);
+            Assert.Equal(string.Empty, p.XmlSchemaCollectionOwningSchema);
+        }
+
+        [Fact]
+        public void Constructor2_Value_TimeOnly()
+        {
+            TimeOnly value = new TimeOnly(9, 7, 42, 321);
+            SqlParameter p = new SqlParameter("timeonly", value);
+
+            Assert.Equal(DbType.Time, p.DbType);
+            Assert.Equal(ParameterDirection.Input, p.Direction);
+            Assert.False(p.IsNullable);
+            Assert.Equal(0, p.LocaleId);
+            Assert.Equal(0, p.Offset);
+            Assert.Equal("timeonly", p.ParameterName);
+            Assert.Equal(0, p.Precision);
+            Assert.Equal(0, p.Scale);
+            Assert.Equal(0, p.Size);
+            Assert.Equal(string.Empty, p.SourceColumn);
+            Assert.False(p.SourceColumnNullMapping);
+            Assert.Equal(DataRowVersion.Current, p.SourceVersion);
+            Assert.Equal(SqlDbType.Time, p.SqlDbType);
+            Assert.Equal(value, p.SqlValue);
+            Assert.Equal(string.Empty, p.TypeName);
+            Assert.Equal(string.Empty, p.UdtTypeName);
+            Assert.Equal(value, p.Value);
+            Assert.Equal(string.Empty, p.XmlSchemaCollectionDatabase);
+            Assert.Equal(string.Empty, p.XmlSchemaCollectionName);
+            Assert.Equal(string.Empty, p.XmlSchemaCollectionOwningSchema);
+        }
+#endif
+
         [Fact]
         public void Constructor2_Value_Null()
         {
@@ -383,6 +441,58 @@ public void InferType_CharArray()
             Assert.Equal(value, p.Value);
         }
 
+#if NET6_0_OR_GREATER
+        [Fact]
+        public void InferType_DateOnly()
+        {
+            DateOnly value;
+            SqlParameter param;
+
+            value = DateOnly.FromDateTime(DateTime.Now.Date);
+            param = new SqlParameter();
+            param.Value = value;
+            Assert.Equal(SqlDbType.Date, param.SqlDbType);
+            Assert.Equal(DbType.Date, param.DbType);
+
+            value = DateOnly.FromDateTime(DateTime.Now.Date);
+            param = new SqlParameter();
+            param.Value = value;
+            Assert.Equal(SqlDbType.Date, param.SqlDbType);
+            Assert.Equal(DbType.Date, param.DbType);
+
+            value = DateOnly.FromDateTime(new DateTime(1973, 8, 13));
+            param = new SqlParameter();
+            param.Value = value;
+            Assert.Equal(SqlDbType.Date, param.SqlDbType);
+            Assert.Equal(DbType.Date, param.DbType);
+        }
+
+        [Fact]
+        public void InferType_TimeOnly()
+        {
+            TimeOnly value;
+            SqlParameter param;
+
+            value = TimeOnly.FromDateTime(DateTime.Now);
+            param = new SqlParameter();
+            param.Value = value;
+            Assert.Equal(SqlDbType.Time, param.SqlDbType);
+            Assert.Equal(DbType.Time, param.DbType);
+
+            value = TimeOnly.FromDateTime(DateTime.Now);
+            param = new SqlParameter();
+            param.Value = value;
+            Assert.Equal(SqlDbType.Time, param.SqlDbType);
+            Assert.Equal(DbType.Time, param.DbType);
+
+            value = TimeOnly.FromDateTime(new DateTime(2022, 10, 22, 15, 27, 38));
+            param = new SqlParameter();
+            param.Value = value;
+            Assert.Equal(SqlDbType.Time, param.SqlDbType);
+            Assert.Equal(DbType.Time, param.DbType);
+        }
+#endif
+
         [Fact]
         public void InferType_DateTime()
         {