有加载圈的问题

Question

我想在进行一些处理时显示加载圈。 我现在正在使用MRG.Conrol。 Loading.cs文件包含MRG.Controls.UI.LoadingCircle。

这是示例应用程序。这里的问题是加载圆圈没有出现在圆周运动中。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace LoadingCircle
{
public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        Loading loding = new Loading();
        loding.SetText = "loading circle";
        loding.Show(this); //this form contains MRG conrol in it.
        loding.Refresh();

        int i = 1;
       // here i have some custom logic which takes 2 min to done.
       // i cant make this logic in separate thread.

        loding.Close();

    }      
}

}