asp.net实现简单分页实例

/// <summary>

/// 分页内容

/// </summary>

/// <param name="size">页面大小</param>

/// <param name="count">页面数量</param>

/// <param name="currendIndex">当前页</param>

/// <param name="pattern">url模式：demo.aspx?page={0}</param>

/// <param name="target">窗口模式</param>

/// <returns></returns>

public static string get_pagenation(int size,

                                    int count,

                                    int currendIndex,

                                    string pattern,

                                    string target)

{

    //1>打开窗口目标

    target = string.IsNullOrEmpty(target) ? "_top" : target;

    //2>总页数

    int pageCount = count / size;

    pageCount = pageCount * size == count ? pageCount : pageCount + 1;

    //3>分页内容

    StringBuilder strHtml = new StringBuilder();

    strHtml.Append("<span class='pagenation'>");

 

    #region 首部处理

    if (currendIndex > 1)

    {

        strHtml.AppendFormat("<a href='1' target='{0}'>[首页]</a>", target);

        strHtml.AppendFormat("<a href='{0}' target='{1}'>[上一页]</a>", string.Format(pattern, currendIndex - 1), target);

    }

    else

    {

        strHtml.Append("<span class='disabled'>[首页]</span>  <span class='disabled'>[上一页]</span>");

    }

    #endregion

 

    #region 中间部分

    int i = 1;

 

    int right = (currendIndex + 4) > pageCount ? pageCount : currendIndex + 4;

    if (currendIndex > 6)

    {

        i = currendIndex - 5;

    }

    else

    {

        right = pageCount >= 10 ? 10 : pageCount;

    }

    for (; i <= right; i++)

    {

        if (i == currendIndex)

        {

            strHtml.AppendFormat("<font class='current'>{0}</font>", i);

            strHtml.AppendLine();

            continue;

        }

        strHtml.AppendFormat("<a href='{0}' target='{1}'>[{2}]</a>", string.Format(pattern, i), target, i);

        strHtml.AppendLine();

    }

    #endregion

 

    #region 尾部处理

    if (currendIndex == pageCount)

    {

        strHtml.Append("<span class='disabled'>[下一页]</span><span class='disabled'>[末页]</span>");

        strHtml.AppendFormat("总共({0})页", pageCount);

    }

    else

    {

        strHtml.AppendFormat("<a href='{0}' target='{1}'>[下一页]</a>", string.Format(pattern, currendIndex + 1), target);

        strHtml.AppendFormat("<a href='{0}' target='{1}'>[末页]</a>", string.Format(pattern, pageCount), target);

        strHtml.AppendFormat("  <label>总共({0})页</label>", pageCount);

    }

    #endregion

 

    strHtml.Append("</span>");

 

    return strHtml.ToString();

}