为您的自定义类型创建一个活页夹提供程序类
public class MyCustomBinderProvider : IModelBinderProvider
{
public IModelBinder GetBinder(ModelBinderProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (context.Metadata.ModelType == typeof(MyCustom))
{
return new BinderTypeModelBinder(typeof(MyCustomBinder));
}
return null;
}
}
并在服务中注册
services.AddMvc(c =>
{
c.ModelBinderProviders.Insert(0, new MyCustomBinderProvider());
});
自定义活页夹可以像
public class MyCustomBinder : IModelBinder
{
public Task BindModelAsync(ModelBindingContext bindingContext)
{
if (bindingContext.ModelType != typeof(MyCustom))
{
return TaskCache.CompletedTask;
}
var parameters = new Dictionary<string, string>();
foreach (var parameter in bindingContext.ModelType.GetProperties())
{
var valueProviderResult = bindingContext.ValueProvider.GetValue(parameter.Name);
if (valueProviderResult.FirstValue != null)
{
parameters.Add(parameter.Name, valueProviderResult.FirstValue);
}
}
var result = Activator.CreateInstance(bindingContext.ModelType);
//write your custom code to map the result with the parameters
bindingContext.Result = ModelBindingResult.Success(result);
return TaskCache.CompletedTask;
}
}
您的自定义类型类
[ModelBinder(BinderType = typeof(MyCustomBinder))]
public class MyCustom
{
public int Page { get; set; }
public int Rows { get; set; }
}
并且您的控制器可以将自定义类作为查询字符串参数
[HttpGet("data")]
public DataTransferObject GetData(MyCustom query)
{
}