public static bool TrySet(this JsonObject obj, string name, object value)
{
Debug.Assert(obj != null, "obj should probably not be null!");
Debug.Assert(!string.IsNullOrEmpty(name), "name cannot be null or empty.");
if (obj == null)
{
return(false);
}
if (value == null)
{
obj.Set(name, JsonExtensions.Null());
}
else
{
// If the type is nullable, strip off the Nullable<> which will
// allow the comparisons below to convert correctly (since
// we've already checked the value isn't null)
Type memberType = value.GetType();
memberType = Nullable.GetUnderlyingType(memberType) ?? memberType;
RuntimeTypeHandle handle = memberType.TypeHandle;
// Set the value based on the type for known primitives
if (handle.Equals(typeof(bool).TypeHandle))
{
obj.Set(name, Convert.ToBoolean(value, CultureInfo.InvariantCulture));
}
else if (handle.Equals(typeof(int).TypeHandle) ||
handle.Equals(typeof(uint).TypeHandle) ||
handle.Equals(typeof(sbyte).TypeHandle) ||
handle.Equals(typeof(byte).TypeHandle) ||
handle.Equals(typeof(short).TypeHandle) ||
handle.Equals(typeof(ushort).TypeHandle) ||
handle.Equals(typeof(double).TypeHandle) ||
handle.Equals(typeof(float).TypeHandle) ||
handle.Equals(typeof(Decimal).TypeHandle) ||
handle.Equals(typeof(uint).TypeHandle))
{
// Convert all numeric types into doubles
obj.Set(name, Convert.ToDouble(value, CultureInfo.InvariantCulture));
}
else if (handle.Equals(typeof(long).TypeHandle) ||
handle.Equals(typeof(ulong).TypeHandle))
{
if (!NumericCanRoundtrip(value, memberType))
{
throw new ArgumentOutOfRangeException(
name,
value,
string.Format(
CultureInfo.InvariantCulture,
Resources.JsonExtensions_TrySetValue_CannotRoundtripNumericValue,
value,
name));
}
obj.Set(name, Convert.ToDouble(value, CultureInfo.InvariantCulture));
}
else if (handle.Equals(typeof(char).TypeHandle))
{
// Convert characters to strings
obj.Set(name, value.ToString());
}
else if (handle.Equals(typeof(string).TypeHandle))
{
obj.Set(name, value as string);
}
else if (handle.Equals(typeof(DateTime).TypeHandle))
{
// Serialize DateTime as an ISO 8061 date/time
obj.Set(name, ((DateTime)value).ToRoundtripDateString());
}
else if (handle.Equals(typeof(DateTimeOffset).TypeHandle))
{
// Serialize DateTimeOffset as an ISO 8061 date/time
obj.Set(name, ((DateTimeOffset)value).DateTime.ToRoundtripDateString());
}
else
{
return(false);
}
}
return(true);
}
