Implement IDbDataParameter. Fixes #465

Author: bgrainger

src/MySqlConnector/MySql.Data.MySqlClient/MySqlParameter.cs

@@ -7,7 +7,7 @@
 
 namespace MySql.Data.MySqlClient
 {
-	public sealed class MySqlParameter : DbParameter
+	public sealed class MySqlParameter : DbParameter, IDbDataParameter
 	{
 		public MySqlParameter()
 		{
@@ -54,10 +54,8 @@ public MySqlParameter(string name, MySqlDbType mySqlDbType, int size, ParameterD
 			Direction = direction;
 			IsNullable = isNullable;
 #if NET45
-			if (precision != 0)
-				throw new PlatformNotSupportedException("'precision' parameter is not supported on .NET 4.5.");
-			if (scale != 0)
-				throw new PlatformNotSupportedException("'scale' parameter is not supported on .NET 4.5.");
+			((IDbDataParameter) this).Precision = precision;
+			((IDbDataParameter) this).Scale = scale;
 #else
 			Precision = precision;
 			Scale = scale;
@@ -105,7 +103,10 @@ public override ParameterDirection Direction
 
 		public override bool IsNullable { get; set; }
 
-#if !NET45
+#if NET45
+		byte IDbDataParameter.Precision { get; set; }
+		byte IDbDataParameter.Scale { get; set; }
+#else
 		public override byte Precision { get; set; }
 		public override byte Scale { get; set; }
 #endif

tests/SideBySide/ParameterTests.cs

@@ -259,5 +259,23 @@ public void ResetDbType()
 			Assert.Equal(DbType.Double, parameter.DbType);
 			Assert.Equal(MySqlDbType.Double, parameter.MySqlDbType);
 		}
+
+		[Fact]
+		public void Precision()
+		{
+			IDbCommand command = new MySqlCommand();
+			IDbDataParameter parameter = command.CreateParameter();
+			parameter.Precision = 11;
+			Assert.Equal((byte) 11, parameter.Precision);
+		}
+
+		[Fact]
+		public void Scale()
+		{
+			IDbCommand command = new MySqlCommand();
+			IDbDataParameter parameter = command.CreateParameter();
+			parameter.Scale = 12;
+			Assert.Equal((byte) 12, parameter.Scale);
+		}
 	}
 }