C# 操作中所有参数的BindRequired属性

在控制器操作中，当您向参数添加属性[BindRequired]时，它使参数成为必需的。但是如果你有多个参数，它会变得非常冗长。有没有一种方法可以在操作级别上实现类似的功能？

一种方法是创建一个模型，并将所有参数放入模型中，如下所示：

public class Test
{
    [BindRequired]
    public string Id { get; set; }
    [BindRequired]
    public string Name { get; set; }
    //other property...
}

public class MyActionFilterAttribute : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext context)
    {
        var keylist = new string[] { "id", "name" };
        var keys = context.HttpContext.Request.Query.Keys;
        foreach(var item in keylist)
        {
            if(!keys.Contains(item))
            {
                context.ModelState.AddModelError(item, $"The {item} need to be provided");
            }
        }
        if (!context.ModelState.IsValid)
        {
            context.Result = new BadRequestObjectResult(
                                                context.ModelState);
        }
    }

}

控制器：

public void Post([FromQuery] Test model)
{
     // return statement
}

[HttpPost]
[MyActionFilter]
public void Post(string id,string name)
{
    // return statement
}

请求url:

https://localhost:portNumber/api/values?id=1&name=aa

另一种方法是自定义操作筛选器，如下所示：

public class Test
{
    [BindRequired]
    public string Id { get; set; }
    [BindRequired]
    public string Name { get; set; }
    //other property...
}

public class MyActionFilterAttribute : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext context)
    {
        var keylist = new string[] { "id", "name" };
        var keys = context.HttpContext.Request.Query.Keys;
        foreach(var item in keylist)
        {
            if(!keys.Contains(item))
            {
                context.ModelState.AddModelError(item, $"The {item} need to be provided");
            }
        }
        if (!context.ModelState.IsValid)
        {
            context.Result = new BadRequestObjectResult(
                                                context.ModelState);
        }
    }

}

控制器：

public void Post([FromQuery] Test model)
{
     // return statement
}

[HttpPost]
[MyActionFilter]
public void Post(string id,string name)
{
    // return statement
}

---

一种方法是创建模型并将所有参数放入模型，如下所示：

public class Test
{
    [BindRequired]
    public string Id { get; set; }
    [BindRequired]
    public string Name { get; set; }
    //other property...
}

public class MyActionFilterAttribute : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext context)
    {
        var keylist = new string[] { "id", "name" };
        var keys = context.HttpContext.Request.Query.Keys;
        foreach(var item in keylist)
        {
            if(!keys.Contains(item))
            {
                context.ModelState.AddModelError(item, $"The {item} need to be provided");
            }
        }
        if (!context.ModelState.IsValid)
        {
            context.Result = new BadRequestObjectResult(
                                                context.ModelState);
        }
    }

}

控制器：

public void Post([FromQuery] Test model)
{
     // return statement
}

[HttpPost]
[MyActionFilter]
public void Post(string id,string name)
{
    // return statement
}

请求url:

https://localhost:portNumber/api/values?id=1&name=aa

另一种方法是自定义操作筛选器，如下所示：

public class Test
{
    [BindRequired]
    public string Id { get; set; }
    [BindRequired]
    public string Name { get; set; }
    //other property...
}

public class MyActionFilterAttribute : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext context)
    {
        var keylist = new string[] { "id", "name" };
        var keys = context.HttpContext.Request.Query.Keys;
        foreach(var item in keylist)
        {
            if(!keys.Contains(item))
            {
                context.ModelState.AddModelError(item, $"The {item} need to be provided");
            }
        }
        if (!context.ModelState.IsValid)
        {
            context.Result = new BadRequestObjectResult(
                                                context.ModelState);
        }
    }

}

控制器：

public void Post([FromQuery] Test model)
{
     // return statement
}

[HttpPost]
[MyActionFilter]
public void Post(string id,string name)
{
    // return statement
}

---

是否要避免将BindRequired属性写入到调用列中？@SatishPai相反，我希望这样做可以调用操作的所有参数，而不必将其添加到每个操作中。类似于一个属性，其作用相同，但应用于操作。是否要避免将BindRequired属性写入调用列？@SatishPai相反，我希望类似的内容调用操作的所有参数，而不将其添加到每个操作。类似于一个属性，它的作用相同，但应用于动作。