/// <summary>
/// 初始化 <see cref="PropertyHandler"/>
/// </summary>
/// <param name="property">属性</param>
public PropertyHandler(PropertyInfo property)
{
Property = property;
PropertyType = property.PropertyType;
Name = property.Name;
Get = ComponentServices.GetGeter(property);
Set = ComponentServices.GetSeter(property);
}
/// <summary>
/// 初始化属性操作器
/// </summary>
/// <param name="property"> 需要操作的属性 </param>
/// <exception cref="Exception">
/// IOC插件异常 <seealso cref="ComponentServices.GetGeter" /> 或
/// <seealso cref="ComponentServices.GetSeter" /> 出现错误.
/// </exception>
public PropertyHandler(PropertyInfo property)
{
Name = property.Name;
PropertyType = property.PropertyType;
Debug.Assert(ComponentServices.GetGeter != null, "ComponentServices.GetGeter != null");
Debug.Assert(ComponentServices.GetSeter != null, "ComponentServices.GetSeter != null");
_getter = ComponentServices.GetGeter(property);
_setter = ComponentServices.GetSeter(property);
}
private void InitGetSet(out Type type, out Func <object, object> get, out Action <object, object> set)
{
type = (Member as PropertyInfo)?.PropertyType ?? (Member as FieldInfo)?.FieldType;
if (ComponentServices.GetGeter != null)
{
get = ComponentServices.GetGeter(Member);
}
else
{
switch (Member.MemberType)
{
case MemberTypes.Property:
get = ((PropertyInfo)Member).GetValue;
break;
case MemberTypes.Field:
get = ((FieldInfo)Member).GetValue;
break;
default:
get = null;
break;
}
}
if (ComponentServices.GetSeter != null)
{
set = ComponentServices.GetSeter(Member);
}
else
{
switch (Member.MemberType)
{
case MemberTypes.Property:
set = ((PropertyInfo)Member).SetValue;
break;
case MemberTypes.Field:
set = ((FieldInfo)Member).SetValue;
break;
default:
set = null;
break;
}
}
}
private static void SetValue(object instance, PropertyInfo p, params string[] names)
{
for (int i = 0, length = names.Length; i < length; i++)
{
var node = AppSettings[names[i]];
if (!node.HasValue)
{
continue;
}
try
{
var value = ComponentServices.Converter.Convert(node.Value, p.PropertyType);
ComponentServices.GetSeter(p)(instance, value);
}
catch (Exception ex)
{
Debug.Assert(true, ex.Message);
// ignored
}
return;
}
}
