直接貼代碼了：

CommaSeparatedModelBinder.cs

using System; using System.Collections; using System.Collections.Generic; using System.Linq; using System.Reflection; using System.Web.Mvc;namespace MvcSample.Extensions {public class CommaSeparatedModelBinder : DefaultModelBinder{private static readonly MethodInfo ToArrayMethod = typeof(Enumerable).GetMethod("ToArray");public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext){return BindCsv(bindingContext.ModelType, bindingContext.ModelName, bindingContext)?? base.BindModel(controllerContext, bindingContext);}protected override object GetPropertyValue(ControllerContext controllerContext, ModelBindingContext bindingContext, System.ComponentModel.PropertyDescriptor propertyDescriptor, IModelBinder propertyBinder){return BindCsv(propertyDescriptor.PropertyType, propertyDescriptor.Name, bindingContext)?? base.GetPropertyValue(controllerContext, bindingContext, propertyDescriptor, propertyBinder);}private object BindCsv(Type type, string name, ModelBindingContext bindingContext){if (type.GetInterface(typeof(IEnumerable).Name) != null){var actualValue = bindingContext.ValueProvider.GetValue(name);if (actualValue != null){var valueType = type.GetElementType() ?? type.GetGenericArguments().FirstOrDefault();if (valueType != null && valueType.GetInterface(typeof(IConvertible).Name) != null){var list = (IList)Activator.CreateInstance(typeof(List<>).MakeGenericType(valueType));foreach (var splitValue in actualValue.AttemptedValue.Split(new[] { ',' })){if (!String.IsNullOrWhiteSpace(splitValue))list.Add(Convert.ChangeType(splitValue, valueType));}if (type.IsArray)return ToArrayMethod.MakeGenericMethod(valueType).Invoke(this, new[] { list });return list;}}}return null;}} }

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客戶端測試 :

using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc;namespace MvcSample.Controllers {public class HomeController : Controller{[HttpPost]public ActionResult ModifyProduct(int productId, int newYear,[ModelBinder(typeof(CommaSeparatedModelBinder))] List<int> orderStatusIds = null){ProductInfoService.TryModifyById(productId, newYear);return Json(new { Success = true, Message = "保存成功" });}} }

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謝謝瀏覽！

轉載于:https://www.cnblogs.com/Music/p/comma-separated-model-binder-in-asp-net-mvc.html

總結

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