/// <summary>
/// 转换配置值类型
/// </summary>
/// <typeparam name="T">目标类型</typeparam>
/// <param name="value">要转换的配置值</param>
/// <returns>转换后的配置值</returns>
private static T CastTo <T>(ConfigurationValue value)
{
var type = typeof(T);
if (type.IsValueType)
{
if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable <>))
{
if (value == null || value is NullValue)
{
return(default(T));
}
else
{
return((T)value.CastTo(Nullable.GetUnderlyingType(type)));
}
}
if (value == null || value is NullValue)
{
throw new InvalidCastException(string.Format("cannot convert null value to type \"{0}\"", type.AssemblyQualifiedName));
}
}
if (value == null || value is NullValue)
{
return(default(T));
}
return((T)value.CastTo(type));
}
public DynamicProxy(Expression expression, ConfigurationValue obj)
: base(expression, BindingRestrictions.GetTypeRestriction(expression, obj.GetType()), obj)
{
}
