Create a custom paging control

Doing it JAVA When the project is , Write a paging control , Thinking about C# Your friends may need , Just use C# Wrote a , There are many ways to page data on the Internet , No more repetition , Don't talk much , Here is UI End code ：

/// <summary>
    ///  Create a custom paging control , return HTML Code 
    /// </summary>
    /// <returns></returns>
    private string CreatePager()
    {
        StringBuilder sb = new StringBuilder();

        // The current page 
        int currPage = 1;

        // obtain URL Page parameters 
        if (Request.QueryString["page"] != null)
        {
            currPage = int.Parse(Request.QueryString["page"]);
        }

        // Total number of pages 
        int pageCount = 18;

        // Display page number 
        int pageNum = 5;

        / The above parameters can be dynamically adjusted , Here's the algorithm /

        // The previous page 
        int prevPage = 1;

        // The next page 
        int nextPage = prevPage + pageNum;

        sb.Append("<ul class=\"pagination\">");

        // home page 
        sb.Append("<li class=\"paginate_button previous\"><a href=\"Name.aspx?active=11,12&page=1\"> home page </a></li>");

        int count = 0;

        int currCount = 0;

        for (int i = 1; i <= pageCount; i++)
        {
            if (i == currPage)
            {
                currCount = count;
            }

            if (i % pageNum == 0)
            {
                if (i < pageCount)
                {
                    count++;
                }
            }
        }

        if (currPage > pageNum)
        {
            prevPage = pageNum * currCount;
            sb.Append("<li class=\"paginate_button\"><a href=\"Name.aspx?active=11,12&page=" + prevPage.ToString() + "\">...</a></li>");
        }

        int start = pageNum * currCount + 1;
        int end = pageNum * currCount + pageNum;

        for (int i = start; i <= end; i++)
        {
            if (i <= pageCount)
            {
                if (i == currPage)
                {
                    sb.Append("<li class=\"paginate_button active\"><a href=\"Name.aspx?active=11,12&page=" + i.ToString() + "\">" + i.ToString() + "</a></li>");
                }
                else
                {
                    sb.Append("<li class=\"paginate_button\"><a href=\"Name.aspx?active=11,12&page=" + i.ToString() + "\">" + i.ToString() + "</a></li>");
                }
            }
        }

        if (currCount < count)
        {
            nextPage = pageNum * currCount + nextPage;
            sb.Append("<li class=\"paginate_button\"><a href=\"Name.aspx?active=11,12&page=" + nextPage.ToString() + "\">...</a></li>");
        }

        // Tail page 
        sb.Append("<li class=\"paginate_button next\"><a href=\"Name.aspx?active=11,12&page=" + pageCount.ToString() + "\"> Tail page </a></li>");

        sb.Append("</ul>");

        return sb.ToString();
    }