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  • C#后台操作JSON数据

    string ss = "";
    string str = "{ID:'1',Name:'aaa',Details:[{ID:'111',Value:'1111111'}]}";
    var obj11 = JsonConvert.DeserializeAnonymousType(str, new { ID = 0, Name = string.Empty, Details = new JArray() });
    str = "[{ID:'1',Name:'aaa'},{ID:'2',Name:'bbb'}]";
    str = "[{ID:'1',Name:'aaa',Details:[{ID:'111',Value:'1111111'}]},{ID:'2',Name:'bbb',Details:[{ID:'222',Value:'22222222'}]}]";
    dynamic tok = JsonConvert.DeserializeObject(str);
    foreach (JObject item in tok)
    {
        var id = item["ID"].Value();
        var name = item["Name"].Value();
        //foreach (var item2 in item.Properties())
        //{
        //    var name = item2.Name;
        //    var v = item2.Value.ToString();
        //}
    }
    
    JArray jAry = (JArray)JsonConvert.DeserializeObject(str);
    var ddd = jAry.ToString();
    for (int i = 0; i < jAry.Count; i++)
    {
        JObject obj = (JObject)jAry[i];
        ss += "ID:" + obj["ID"].ToString() + "
    ";
        ss += "Name:" + obj["Name"].ToString() + "
    ";
        JArray json = (JArray)obj["Details"];
        ss += "Detail:
    --------
    ";
        for (int j = 0; j < json.Count; j++)
        {
            JObject jsonobj = (JObject)json[j];
            ss += "ID:" + jsonobj["ID"].ToString() + "
    ";
            ss += "Value:" + jsonobj["Value"].ToString() + "
    ";
            //var age = jsonobj["Value"].Value();
        }
        ss += "--------
    
    ";
    }
    
    dynamic tok2 = JsonConvert.DeserializeObject(str);
    if (tok is JArray)
    {
        foreach (JObject item in tok2)
        {
            foreach (JProperty item2 in item.Properties())
            {
    
            }
        }
    }
    
    
    
    //Json字符串
    string jsonStr = @"{ID:'1',Name:'aaa',Details:[{ID:'111',Value:'1111111'}]";
    //匿名类
    var objj = JsonConvert.DeserializeAnonymousType(jsonStr, new { ID = 0, Name = string.Empty, Details = new JArray() });
    ss += "
    " + objj.Name + "	" + objj.ID + "	" + objj.Name;
    
    var r1 = db.Box.Select(c => new { c.BoxID, c.Name }).ToList();
    
    
    
    IEnumerable r2__ = db.Box.Select(c => new { c.BoxID, c.Name })
                                    .AsEnumerable()
                                    .Select(en => new JProperty(en.BoxID, en.Name));
    
    //var relations = db.RelPaperAndProcesses.GroupBy(x => x.PaperGroupID).ToDictionary(x => x.Key, x => x.ToList().ConvertAll(y => new { ID = y.ID }));
    
    //var r2 = db.Box.Select(c => new Tuple<string, string>(c.BoxID, c.Name)).ToList();
    
    //        JObject sssj = new JObject( //创建JSON对象
    //    db.Categories.Select(
    //        c =>
    //        new JProperty( //创建JSON属性
    //            c.CategoryName, //属性名称(在这里是产品类别名称)
    //            new JArray( //属性的值(在这里是该类别下的所有产品名称)
    //                c.Products.Select(
    //                    p =>
    //                    p.ProductName
    //                )
    //            )
    //        )
    //    )
    //);
    
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  • 原文地址:https://www.cnblogs.com/gxlinhai/p/4308567.html
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