C# Winform文本面板带滚动条的实现过程

using Newtonsoft.Json;
using System;
using System.Drawing;
using System.IO;
using System.Text.RegularExpressions;
using System.Windows.Forms;
 
namespace Test
{
    public partial class JsonWin : Form
    {
        public JsonWin(string json)
        {
            InitializeComponent();
 
            Json= json;
        }
 
        private string Json = string.Empty;
 
        private void JsonWin_Load(object sender, EventArgs e)
        {
            string json = PraseToJson(Json);
            string[] arr = Regex.Split(json, "\r\n", RegexOptions.IgnoreCase);
            Size size = label1.Size;
            Size newSize = new Size(size.Width, arr.Length * 23);
            label1.Size = newSize;
            panel2.Size = newSize;
            label1.Text = json;
        }
 
        public string PraseToJson(string json)
        {
            try
            {
                JsonSerializer s = new JsonSerializer();
                JsonReader reader = new JsonTextReader(new StringReader(json));
                Object jsonObject = s.Deserialize(reader);
                StringWriter sWriter = new StringWriter();
                JsonWriter writer = new JsonTextWriter(sWriter);
                writer.Formatting = Newtonsoft.Json.Formatting.Indented;
                s.Serialize(writer, jsonObject);
                return sWriter.ToString();
            }
            catch (Exception)
            {
                return json;
            }
        }
    }
}