首页 / 问答 / C#利用JSON保存控件数据时JARRAY中前面元素被后面元素覆盖掉如何解决?

C#利用JSON保存控件数据时JARRAY中前面元素被后面元素覆盖掉如何解决?

C# JSON 252 次浏览
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RT,执行保存控件数据的部分代码如下

             //定义JSON数组对象
            JArray JAA=new JArray() {"","","","","","","",""};
            //定义JSON对象
            JObject JO2 = new JObject();
             //--DEL
            int tb_n = 0;
             /*定义控件名字变量*/
            string cnname = "";
            /*定义控件名字数组 */
            string[] cnnamearr = new string[3];
            //遍历控件
            foreach (Control co in this.Controls)
            {
                cnname = co.Name;
                if (Regex.IsMatch(cnname, "^TeaSetingsTBox([\\d]{1})([_][ABC])$"))
                {
                    cnnamearr=cnname.Split(new char[2] { 'x','_'});
                    JO2["ID"]=cnnamearr[1];
                    switch (cnnamearr[2])
                    {
                        case "A":
                            if (Regex.IsMatch(co.Text, "^([0-9]{1,})$"))
                               JO2["A"] = int.Parse(co.Text);
                            else 
                               JO2["A"] = float.Parse(co.Text);
                            break;
                        case "B":
                            if (Regex.IsMatch(co.Text, "^([0-9]{1,})$"))
                                JO2["B"] = int.Parse(co.Text);
                            else
                                JO2["B"] = float.Parse(co.Text);
                            break;
                        case "C":
                            if (Regex.IsMatch(co.Text, "^([0-9]{1,})$"))
                                JO2["C"] = int.Parse(co.Text);
                            else
                                JO2["C"] = float.Parse(co.Text);
                            break;
                        default:break;
                    }
                    tb_n = int.Parse(cnnamearr[1]) - 1;
                    JAA[tb_n ]= JO2;
                    tb_n = 0;
                }
            }

控件的命名是TeaSetingsTBox1_A ,TeaSetingsTBox1_B,TeaSetingsTBox1_C …这样子,现在的问题是我无法保存最开始的JAA的一个元素,他总是被后续的覆盖掉,例如执行完前三次的 JAA[tb_n ]= JO2; JAA[7]里面的值为{“ID”:”8”,”C”:8,”B”:8,”A”:8},但是,执行完前6次后JAA[7]里面就变成了{“ID”:”7”,”C”:7,”B”:7,”A”:7},前9次JAA[7]后就成了{“ID”:”6”,”C”:6,”B”:6,”A”:6},一直到最后JAA[7]变成了{“ID”:”1”,”C”:1,”B”:1,”A”:1}并且和JAA[0]一样,请问下这是哪里的问题,增加一个JAA的元素和改变JAA元素的保存顺序(从7-0保存或从0-7保存)都不能解决问题,但除了这个JAA[7]之外,JAA[6]-JAA[0]都是正常的。使用的是nuget里面的Newtonsoft.Json.

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1 个回答

  • 0

    用一个集合对象存储不同控件的信息就可以了。

    示例程序代码如下:

    using Newtonsoft.Json;
    using System;
    using System.Collections.Generic;
    using System.Text.RegularExpressions;
    
    namespace ConsoleApp1
    {
        internal class Program
        {
            private static void Main(string[] args)
            {
                var controls = new List<Control>
                {
                    new()
                    {
                        Name = "TeaSetingsTBox1_A",
                        Text = "1"
                    },
                    new()
                    {
                        Name = "TeaSetingsTBox1_B",
                        Text = "2"
                    },
                    new()
                    {
                        Name = "TeaSetingsTBox1_C",
                        Text = "3"
                    },
                    new()
                    {
                        Name = "TeaSetingsTBox2_A",
                        Text = "4"
                    },
                    new()
                    {
                        Name = "TeaSetingsTBox2_B",
                        Text = "5"
                    },
                    new()
                    {
                        Name = "TeaSetingsTBox2_C",
                        Text = "6"
                    },
                    new()
                    {
                        Name = "TeaSetingsTBox3_A",
                        Text = "7"
                    },
                    new()
                    {
                        Name = "TeaSetingsTBox3_B",
                        Text = "8"
                    },
                    new()
                    {
                        Name = "TeaSetingsTBox3_C",
                        Text = "9"
                    }
                };
    
                var result = new List<Item>();
                foreach (var co in controls)
                {
                    var cnname = co.Name;
                    if (Regex.IsMatch(cnname, "^TeaSetingsTBox([\\d]{1})([_][ABC])$"))
                    {
                        var cnnamearr = cnname.Split('x', '_');
                        var item = new Item
                        {
                            Id = cnnamearr[1]
                        };
                        switch (cnnamearr[2])
                        {
                            case "A":
                                if (Regex.IsMatch(co.Text, "^([0-9]{1,})$"))
                                    //JO2["A"] = int.Parse(co.Text);
                                    item.A = int.Parse(co.Text);
                                else
                                    //JO2["A"] = float.Parse(co.Text);
                                    item.A = float.Parse(co.Text);
                                break;
                            case "B":
                                if (Regex.IsMatch(co.Text, "^([0-9]{1,})$"))
                                    //JO2["B"] = int.Parse(co.Text);
                                    item.B = int.Parse(co.Text);
                                else
                                    item.B = float.Parse(co.Text);
                                break;
                            case "C":
                                if (Regex.IsMatch(co.Text, "^([0-9]{1,})$"))
                                    item.C = int.Parse(co.Text);
                                else
                                    item.C = float.Parse(co.Text);
                                break;
                        }
    
                        result.Add(item);
                    }
                }
    
                Console.WriteLine(JsonConvert.SerializeObject(result));
                Console.ReadKey();
            }
    
            public class Item
            {
                public string Id { get; set; }
                [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
                public object A { get; set; }
                [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
                public object B { get; set; }
                [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
                public object C { get; set; }
            }
    
            public class Control
            {
                public string Name { get; set; }
                public string Text { get; set; }
            }
        }
    }
    

    运行结果:

    [{"Id":"1","A":1},{"Id":"1","B":2},{"Id":"1","C":3},{"Id":"2","A":4},{"Id":"2","B":5},{"Id":"2","C":6},{"Id":"3","A":7},{"Id":"3","B":8},{"Id":"3","C":9}]
    

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