public override object GetValue(object component)
{
var mp = this.Property;
var entity = component as Entity;
if (mp is IRefProperty)
{
if (mp is IRefIdProperty)
{
return(entity.GetRefNullableId(mp as IRefIdProperty));
}
if (mp is IRefEntityProperty)
{
return(entity.GetRefEntity(mp as IRefEntityProperty));
}
}
if (mp is IListProperty)
{
return(entity.GetLazyList(mp as IListProperty));
}
var value = entity.GetProperty(mp);
//枚举值在为界面返回值时，应该返回 Label
if (value != null && TypeHelper.IsEnumNullable(mp.PropertyType))
{
value = EnumViewModel.EnumToLabel((Enum)value).Translate();
}
return(value);
}
/// <summary>
/// Formats the enum values.
/// </summary>
/// <param name="enumType">Type of the enum.</param>
/// <returns></returns>
private string FormatEnumValues(Type enumType)
{
var sb = new StringBuilder();
foreach (Enum item in Enum.GetValues(enumType))
{
if (sb.Length > 0)
{
sb.AppendLine();
}
sb.Append(Convert.ToInt32(item));
sb.Append(":(");
sb.Append(item.ToString());
var label = EnumViewModel.EnumToLabel(item);
if (!string.IsNullOrEmpty(label))
{
sb.Append(", ");
sb.Append(label);
}
sb.Append(")");
}
return(sb.ToString());
}
internal static object ToClientValue(Type serverType, object value)
{
if (serverType.IsEnum)
{
value = EnumViewModel.EnumToLabel(value as Enum);
}
else if (serverType == typeof(Nullable <int>))
{
if (value == null)
{
value = 0;
}
}
else if (serverType == typeof(Nullable <Guid>))
{
if (value == null)
{
value = Guid.Empty;
}
value = value.ToString();
}
else if (serverType == typeof(Guid))
{
value = value.ToString();
}
return(value);
}
protected virtual string ReadProperty(WPFEntityPropertyViewMeta property)
{
var data = string.Empty;
try
{
if (property.IsReference)
{
var displayPath = property.DisplayPath();
var value = ObjectHelper.GetPropertyValue(this._currentRow, displayPath);
if (value != null)
{
data = value.ToString();
}
}
else
{
var mp = property.PropertyMeta.ManagedProperty;
if (mp != null)
{
var value = this._currentRow.GetProperty(mp);
if (value != null)
{
if (TypeHelper.IsEnumNullable(mp.PropertyType))
{
data = EnumViewModel.EnumToLabel((Enum)value).Translate();
}
else
{
data = value.ToString();
}
}
}
}
}
catch
{
//尽量尝试读取值，读取出错，则忽略错误。
}
return(data);
}
/// <summary>
/// 序列化某个指定的属性的值。
/// </summary>
/// <param name="value"></param>
protected virtual void SerializeValue(object value)
{
//if (value is byte[])
//{
// var base64 = Convert.ToBase64String(value as byte[]);
// _writer.WriteValue(base64);
//}
//else
if (value is IList && !(value is byte[]))
{
_writer.WriteStartArray();
var list = value as IList;
for (int i = 0, c = list.Count; i < c; i++)
{
var item = list[i];
_writer.WriteValue(item);
}
_writer.WriteEndArray();
}
else
{
if (value != null && value.GetType().IsEnum)
{
switch (this.EnumSerializationMode)
{
case EnumSerializationMode.String:
value = value.ToString();
break;
case EnumSerializationMode.EnumLabel:
value = EnumViewModel.EnumToLabel((Enum)value) ?? value.ToString();
break;
default:
break;
}
}
_writer.WriteValue(value);
}
}
private void SerializeProperty(IProperty property, object value)
{
switch (property.Category)
{
case PropertyCategory.List:
if (this.SerializeAggt && value != null)
{
this.WritePropertyName(property.Name);
this.SerializeList(value as EntityList);
}
break;
case PropertyCategory.LOB:
case PropertyCategory.Normal:
case PropertyCategory.Readonly:
case PropertyCategory.Redundancy:
case PropertyCategory.ReferenceId:
this.WritePropertyName(property.Name);
//if (value is byte[])
//{
// var base64 = Convert.ToBase64String(value as byte[]);
// _writer.WriteValue(base64);
//}
//else
if (value is IList && !(value is byte[]))
{
_writer.WriteStartArray();
var list = value as IList;
for (int i = 0, c = list.Count; i < c; i++)
{
var item = list[i];
_writer.WriteValue(item);
}
_writer.WriteEndArray();
}
else
{
if (value != null && value.GetType().IsEnum)
{
switch (_enumSerializationMode)
{
case EnumSerializationMode.String:
value = value.ToString();
break;
case EnumSerializationMode.EnumLabel:
value = EnumViewModel.EnumToLabel((Enum)value) ?? value.ToString();
break;
default:
break;
}
}
_writer.WriteValue(value);
}
break;
//ReferenceId 也都全部直接输出。
//case PropertyCategory.ReferenceId:
// var refProperty = property as IRefProperty;
// switch (refProperty.ReferenceType)
// {
// case ReferenceType.Child:
// case ReferenceType.Normal:
// this.WritePropertyName(property.Name);
// _writer.WriteValue(value);
// break;
// case ReferenceType.Parent:
// break;
// default:
// throw new NotSupportedException();
// }
// break;
case PropertyCategory.ReferenceEntity:
if (this.SerializeReference && value != null && (property as IRefProperty).ReferenceType != ReferenceType.Parent)
{
this.WritePropertyName(property.Name);
this.SerializeEntity(value as Entity);
}
break;
default:
throw new NotSupportedException();
}
}