/// <summary> 设置指定名称实体字段数据 </summary>
bool RefreshModelProperty <R>(ValidationProperty <R> value, [CallerMemberName] string propertyName = "")
{
var p = typeof(T).GetProperty(propertyName);
if (!p.CanWrite)
{
value.Message = "只读字段不可以修改";
return(false);
}
value.Message = null;
// Do ：判断数据验证
var collection = p.GetCustomAttributes <ValidationAttribute>()?.ToList();
if (collection != null)
{
foreach (var r in collection)
{
if (!r.IsValid(value.Value))
{
string display = p.GetCustomAttributes <DisplayAttribute>()?.FirstOrDefault()?.Name;
value.Message = r.ErrorMessage ?? r.FormatErrorMessage(display ?? p.Name);
// Do ：保存实体验证失败
return(false);
}
}
}
p.SetValue(this.Model, value.Value);
return(true);
}
/// <summary> 获取指定名称实体字段数据 </summary>
protected ValidationProperty <R> CreateModelProperty <R>([CallerMemberName] string propertyName = "")
{
ValidationProperty <R> value = new ValidationProperty <R>();
// Do ：值改变时检查数据，并更新实体字段
value.ValueChanged = l =>
{
this.RefreshModelProperty(value, propertyName);
};
var p = typeof(T).GetProperty(propertyName);
string display = p.GetCustomAttributes <DisplayAttribute>()?.FirstOrDefault()?.Name;
value.Name = p.Name;
value.DisplayName = display ?? value.Name;
if (!p.CanRead)
{
value.Message = "只写字段不支持读取数据";
return(value);
}
// Do ：判断数据验证
var collection = p.GetCustomAttributes <ValidationAttribute>()?.ToList();
if (collection != null)
{
foreach (var r in collection)
{
if (!r.IsValid(value.Value))
{
value.Message = r.ErrorMessage ?? r.FormatErrorMessage(display ?? p.Name);
// Do ：保存实体验证失败
break;
}
}
}
value.Flag = p.GetCustomAttributes <RequiredAttribute>()?.FirstOrDefault() != null ? "*" : "";
value.Value = (R)p.GetValue(this.Model);
return(value);
}