visual studio 编辑框如何读取Config.ini文件

Config.ini

[main]
TransferFees=0.5
BrokerageExpenses=0.1
StampButy=20

如何获取Config.ini文件的配置到窗体编辑框

麻烦各位教教

using System;
using System.Runtime.InteropServices;
using System.Text;

    /// <summary>
    /// INI文件读写类。
    /// </summary>
    public class INIFileHelper
    {
        public string path;

        public INIFileHelper(string INIPath)
        {
            path = INIPath;
        }

        [DllImport("kernel32")]
        private static extern long WritePrivateProfileString(string section,string key,string val,string filePath);

        [DllImport("kernel32")]
        private static extern int GetPrivateProfileString(string section,string key,string def, StringBuilder retVal,int size,string filePath);

    
        [DllImport("kernel32")]
        private static extern int GetPrivateProfileString(string section, string key, string defVal, Byte[] retVal, int size, string filePath);


        /// <summary>
        /// 写INI文件
        /// </summary>
        /// <param name="Section"></param>
        /// <param name="Key"></param>
        /// <param name="Value"></param>
        public void IniWriteValue(string Section,string Key,string Value)
        {
            WritePrivateProfileString(Section,Key,Value,this.path);
        }

        /// <summary>
        /// 读取INI文件
        /// </summary>
        /// <param name="Section"></param>
        /// <param name="Key"></param>
        /// <returns></returns>
        public string IniReadValue(string Section,string Key)
        {
            StringBuilder temp = new StringBuilder(255);
            int i = GetPrivateProfileString(Section,Key,"",temp, 255, this.path);
            return temp.ToString();
        }
        public byte[] IniReadValues(string section, string key)
        {
            byte[] temp = new byte[255];
            int i = GetPrivateProfileString(section, key, "", temp, 255, this.path);
            return temp;

        }


        /// <summary>
        /// 删除ini文件下所有段落
        /// </summary>
        public void ClearAllSection()
        {
            IniWriteValue(null,null,null);
        }
        /// <summary>
        /// 删除ini文件下personal段落下的所有键
        /// </summary>
        /// <param name="Section"></param>
        public void ClearSection(string Section)
        {
            IniWriteValue(Section,null,null);
        }

    }