帮忙看下这个：
int n, m, temp;
            string str = this.textBox2.Text.ToString();
            string str1 = string.Empty;
            string[] array1 = str.Split(' ');
            int count = str.Length;
            int[] array2=new int[count];
            for (int i = 0; i < count; i++)
            {
                array2[i] =Convert.ToInt32(array1);
            }
            for (m = 0; m < count; m++)
            {
                for (n = m - 1; n >= 0; n--)
                {
                    if (array2[n] > array2[m])
                    {
                        temp = array2[n];
                        array2[n] = array2[m];
                        array2[m] = temp;
                    }
                }
            }
            for (int k = 0; k < count; k++)
            {
                textBox3.Text = str1 + array2[k].ToString();
            }
在调试的时候在这一句：array2[i] =Convert.ToInt32(array1);
出现无法将类型为：system.string[]：的对象强制转换为类型"system.iconvertible"。
该怎么改？

如果改成这你说的这样就会提示：字符串格式不正确