当前文件： AfengPager/AfengPager/Methods.cs[5K，2009-6-12 11:31:32]，打开代码结构图

		            
  1// Author      : Afeng
  2// FileName    : AfengPager
  3// Release     : 2008/06/23 1.0
  4// Description : 通用Url分页控件
  5// Mail        : 200840418@qq.com
  6
  7using System;
  8using System.Collections.Generic;
  9using System.Text;
 10using System.Web;
 11using System.Web.UI;
 12
 13namespace AfengTools
 14...{
 15    public partial class AfengPager
 16    ...{
 17        /**//// <summary>
 18        /// 得到总页数（动态，前置条件：总记录数、每页显示的记录数）
 19        /// </summary>
 20        /// <returns></returns>
 21        private Int32 GetTotalPages()
 22        ...{
 23            if (this.ShowRecordCount != 0)
 24            ...{
 25                return (this.TotalRecordCount + this.ShowRecordCount - 1) / this.ShowRecordCount;
 26            }
 27            return 0;
 28        }
 29
 30        /**//// <summary>
 31        /// 得到当前选中的页码（动态，前置条件：QueryString）
 32        /// </summary>
 33        /// <returns></returns>
 34        private Int32 GetCurrentPageIndex()
 35        ...{
 36            if (HttpContext.Current != null && HttpContext.Current.Request.QueryString[QueryString] != null)
 37            ...{
 38                return int.Parse(HttpContext.Current.Request.QueryString[QueryString]);
 39            }
 40            return 1;
 41        }
 42
 43        /**//// <summary>
 44        /// 得到前翻页码（动态，前置条件：当前页码）
 45        /// </summary>
 46        /// <param name="currentPageIndex">当前选中的页码</param>
 47        /// <param name="showPageNumberCount">每页显示的分页页码数量</param>
 48        /// <returns></returns>
 49        private Int32 GetPageUpIndex(int currentPageIndex, int showPageNumberCount)
 50        ...{
 51            if (currentPageIndex % showPageNumberCount == 0)
 52                return (currentPageIndex / showPageNumberCount - 2) * showPageNumberCount + showPageNumberCount;
 53            else
 54                return (currentPageIndex / showPageNumberCount - 1) * showPageNumberCount + showPageNumberCount;
 55        }
 56
 57        /**//// <summary>
 58        /// 得到后翻页码（动态，前置条件：当前页码）
 59        /// </summary>
 60        /// <param name="currentPageIndex">当前选中的页码</param>
 61        /// <param name="showPageNumberCount">每页显示的分页页码数量</param>
 62        /// <returns></returns>
 63        private Int32 GetPageDownIndex(int currentPageIndex, int showPageNumberCount)
 64        ...{
 65            if (currentPageIndex % showPageNumberCount == 0)
 66                return (currentPageIndex / showPageNumberCount) * showPageNumberCount + 1;
 67            else
 68                return (currentPageIndex / showPageNumberCount + 1) * showPageNumberCount + 1;
 69        }
 70
 71        /**//// <summary>
 72        /// 呈现页码部分
 73        /// </summary>
 74        /// <param name="output">HtmlTextWriter</param>
 75        /// <param name="currentPageIndex">当前页码</param>
 76        /// <param name="showPageNumberCount">显示的页码数量</param>
 77        private void RenderPageNumber(HtmlTextWriter output, int currentPageIndex, int showPageNumberCount, int sumPageCount)
 78        ...{
 79            // 如果当前页不能整除 showPageNumberCount 页
 80            if (currentPageIndex % showPageNumberCount != 0)
 81            ...{
 82                for (int i = currentPageIndex / showPageNumberCount * showPageNumberCount + 1, j = 1; j <= showPageNumberCount && i <= sumPageCount; i++, j++)
 83                ...{
 84                    output.AddStyleAttribute(HtmlTextWriterStyle.TextDecoration, "none");
 85
 86                    // 当前选中页用特殊颜色标记
 87                    if (i == currentPageIndex)
 88                    ...{
 89                        output.AddStyleAttribute(HtmlTextWriterStyle.Color, this.SelectedPageNumberColor);
 90                    }
 91                    else
 92                    ...{
 93                        output.AddStyleAttribute(HtmlTextWriterStyle.Color, this.PageNumberColor);
 94                    }
 95
 96                    output.AddAttribute(HtmlTextWriterAttribute.Href, String.Format("?{0}={1}", this.QueryString, i.ToString()));
 97                    output.RenderBeginTag(HtmlTextWriterTag.A);
 98                    output.Write(this.TextBeforePageNumber);
 99                    output.Write(i.ToString());
100                    output.Write(this.TextAfterPageNumber);
101                    output.RenderEndTag();
102                    output.Write("&nbsp;&nbsp;");
103                }
104            }
105            else
106            ...{
107                for (int i = (currentPageIndex / showPageNumberCount - 1) * showPageNumberCount + 1, j = 1; j <= showPageNumberCount && i <= sumPageCount; i++, j++)
108                ...{
109                    output.AddStyleAttribute(HtmlTextWriterStyle.TextDecoration, "none");
110
111                    // 当前选中页用特殊颜色标记
112                    if (i == currentPageIndex)
113                    ...{
114                        output.AddStyleAttribute(HtmlTextWriterStyle.Color, this.SelectedPageNumberColor);
115                    }
116                    else
117                    ...{
118                        output.AddStyleAttribute(HtmlTextWriterStyle.Color, this.PageNumberColor);
119                    }
120
121                    output.AddAttribute(HtmlTextWriterAttribute.Href, String.Format("?{0}={1}", this.QueryString, i.ToString()));
122                    output.RenderBeginTag(HtmlTextWriterTag.A);
123                    output.Write(this.TextBeforePageNumber);
124                    output.Write(i.ToString());
125                    output.Write(this.TextAfterPageNumber);
126                    output.RenderEndTag();
127                    output.Write("&nbsp;&nbsp;");
128                }
129            }
130        }
131    }
132}
133