属性校验

给属性添加校验，可以避免用户填写不支持的数据，减少开发不必要的错误处理逻辑。

属性必填

1. 通过标注RequiredAttitude支持属性必填。

   using GrapeCity.Forguncy.Commands;
   using GrapeCity.Forguncy.Plugin;
   using System.ComponentModel;
   using System.ComponentModel.DataAnnotations;
   using System.Threading.Tasks;
   
   namespace MyPlugin
   {
       [Icon("pack://application:,,,/MyPlugin;component/Resources/Icon.png")]
       [Designer("MyPlugin.Designer.MyPluginServerCommandDesigner, MyPlugin")]
       public class MyPluginServerCommand : Command, ICommandExecutableInServerSideAsync
       {
           [Required]
           public string Name { get; set; }
   
           public async Task<ExecuteResult> ExecuteAsync(IServerCommandExecuteContext dataContext)
           {
               return new ExecuteResult();
           }
           public override CommandScope GetCommandScope()
           {
               return CommandScope.ExecutableInServer;
           }
       }
   }

2. 效果：

   
   

校验长度

1. 通过MaxLengthAttribute和MinLengthAttribute支持长度校验。

   using GrapeCity.Forguncy.Commands;
   using GrapeCity.Forguncy.Plugin;
   using System.ComponentModel;
   using System.ComponentModel.DataAnnotations;
   using System.Threading.Tasks;
   
   namespace MyPlugin
   {
       [Icon("pack://application:,,,/MyPlugin;component/Resources/Icon.png")]
       [Designer("MyPlugin.Designer.MyPluginServerCommandDesigner, MyPlugin")]
       public class MyPluginServerCommand : Command, ICommandExecutableInServerSideAsync
       {
           [MaxLength(6)]
           [MinLength(1)]
           public string Name { get; set; }
   
           public async Task<ExecuteResult> ExecuteAsync(IServerCommandExecuteContext dataContext)
           {
               return new ExecuteResult();
           }
           public override CommandScope GetCommandScope()
           {
               return CommandScope.ExecutableInServer;
           }
       }
   }

2. 效果：