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Always use TypeHandler for parameters if available #339

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Always use TypeHandler for parameters if available #339

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4 changes: 2 additions & 2 deletions Dapper NET40/SqlMapper.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -925,7 +925,7 @@ public static DbType GetDbType(object value)
internal static DbType LookupDbType(Type type, string name, bool demand, out ITypeHandler handler)
{
DbType dbType;
handler = null;
typeHandlers.TryGetValue(type, out handler);
var nullUnderlyingType = Nullable.GetUnderlyingType(type);
if (nullUnderlyingType != null) type = nullUnderlyingType;
if (type.IsEnum() && !typeMap.ContainsKey(type))
Expand All @@ -940,7 +940,7 @@ internal static DbType LookupDbType(Type type, string name, bool demand, out ITy
{
return DbType.Binary;
}
if (typeHandlers.TryGetValue(type, out handler))
if (handler == null)
{
return DbType.Object;
}
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