/// <summary>
/// 检查
/// </summary>
public static void Check <T>(T item) where T : class
{
List <PropertyInfo> propertyInfos = item.GetType().GetProperties().Where(e => e.GetCustomAttributes <RequisiteAttribute>().Any()).ToList();
if (propertyInfos != null && propertyInfos.Count > 0)
{
foreach (PropertyInfo propertyInfo in propertyInfos)
{
RequisiteAttribute requisite = propertyInfo.GetCustomAttributes <RequisiteAttribute>().FirstOrDefault();
if (!requisite.CheckValueType)
{
if (propertyInfo.PropertyType.IsValueType)
{
continue; // 值类型跳过
}
}
dynamic defaultValue = propertyInfo.PropertyType.IsValueType ? Activator.CreateInstance(propertyInfo.PropertyType) : null;
dynamic value = propertyInfo.GetValue(item);
if (value == defaultValue)
{
if (requisite != null && !string.IsNullOrEmpty(requisite.Describe))
{
throw new FormatException($"{propertyInfo.Name}为必填字段。必填原因为:{requisite.Describe}");
}
else
{
throw new FormatException($"{propertyInfo.Name}为必填字段");
}
}
}
}
}
/// <summary>
/// 比填字段检查
/// </summary>
/// <typeparam name="T">检查对象</typeparam>
/// <param name="source">检查数据</param>
public static void RequisiteCheck <T>(this T source) where T : class
{
RequisiteAttribute.Check <T>(source);
}