Merge pull request #100 from BlackjacketMack/master

Added support for ICustomQueryParameters to be members of a dictionary t...

Dapper NET40/SqlMapper.cs

@@ -3231,8 +3231,9 @@ protected void AddParameters(IDbCommand command, SqlMapper.Identity identity)
                 var dbType = param.DbType;
                 var val = param.Value;
                 string name = Clean(param.Name);
+                var isCustomQueryParameter = typeof(SqlMapper.ICustomQueryParameter).IsAssignableFrom(val.GetType());
 
-                if (dbType == null && val != null) dbType = SqlMapper.LookupDbType(val.GetType(), name);
+                if (dbType == null && val != null && !isCustomQueryParameter) dbType = SqlMapper.LookupDbType(val.GetType(), name);
 
                 if (dbType == DynamicParameters.EnumerableMultiParameter)
                 {
@@ -3240,6 +3241,10 @@ protected void AddParameters(IDbCommand command, SqlMapper.Identity identity)
                     SqlMapper.PackListParameters(command, name, val);
 #pragma warning restore 612, 618
                 }
+                else if (isCustomQueryParameter)
+                {
+                    ((SqlMapper.ICustomQueryParameter)val).AddParameter(command, name);
+                }
                 else
                 {
 
@@ -3729,4 +3734,4 @@ public partial class FeatureSupport
 
 #endif
 
-}
+}
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