初始化

qinchulong

2025-03-29 039a4a5433e7f80adc88b491b549e5d9486e4f9a

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using Microsoft.AspNetCore.Mvc.ModelBinding;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using WIDESEA_Entity.DomainModels;
 
namespace WIDESEA_Core.ModelBinder
{
    public class BaseModelBinder : IModelBinder
    {
        public BaseModelBinder()
        {
        }
 
        public Task BindModelAsync(ModelBindingContext bindingContext)
        {
            if (bindingContext == null)
            {
                throw new ArgumentNullException(nameof(bindingContext));
            }
 
            var modelName = bindingContext.ModelName;
 
            // Try to fetch the value of the argument by name
            var valueProviderResult =
                bindingContext.ValueProvider.GetValue(modelName);
 
            if (valueProviderResult == ValueProviderResult.None)
            {
                return Task.CompletedTask;
            }
 
            bindingContext.ModelState.SetModelValue(modelName,
                valueProviderResult);
 
            var value = valueProviderResult.FirstValue;
            if (string.IsNullOrEmpty(value))
            {
                return Task.CompletedTask;
            }
            var model = Newtonsoft.Json.JsonConvert.DeserializeObject(value, bindingContext.ModelType);
            bindingContext.Result = ModelBindingResult.Success(model);
            return Task.CompletedTask;
        }
    }
}