ASP.NET中怎么实现分页
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asp.net分页代码1 ContentPager .cs
using System; using System.Data; using System.Configuration; using System.Collections; using System.ComponentModel; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Web.SessionState; ////// ContentPager 的摘要说明 /// summary> public class ContentPager : System.Web.UI.Page { private System.Web.UI.WebControls.HyperLink lnknext; private System.Web.UI.WebControls.HyperLink lnkprev; private System.Web.UI.WebControls.HyperLink lnkfist; private System.Web.UI.WebControls.HyperLink lnklast; private System.Web.UI.WebControls.Label pagenum; private System.Web.UI.WebControls.Label pagecount; private System.Web.UI.WebControls.Label displaycontent; public ContentPager() { // // TODO: 在此处添加构造函数逻辑 // } public void datapager(string content,string query) { string PagerSplit = System.Configuration.ConfigurationManager.AppSettings["PagerSplit"];//从 web.config中获取分页符,当然这里可以自己定义,为了方便还是放到配置文件或者数据库中。 string[] contentArray = StringSplit(content, PagerSplit);//这里是一个方法,摘自网上 int PageCount = contentArray.Length; this.pagecount.Text = "共" + PageCount.ToString() + "font>b>页"; int CurPage; //确定当前页数 if (System.Web.HttpContext.Current.Request.Params["Page"] != null) { CurPage = Convert.ToInt32(System.Web.HttpContext.Current.Request.Params["Page"]); } else { CurPage = 1; } if (CurPage < 1) CurPage = 1; if (Convert.ToInt32(System.Web.HttpContext.Current.Request.Params["Page"]) > PageCount) { CurPage = PageCount; } //显示当前页数 this.pagenum.Text = "第" + CurPage.ToString() + "font>b>页"; //下一页 if (CurPage != PageCount) { lnknext.NavigateUrl = System.Web.HttpContext.Current.Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(CurPage + 1) + query; } //上一页 if (CurPage > 1) { lnkprev.NavigateUrl = System.Web.HttpContext.Current.Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(CurPage - 1) + query; } //***页 if (CurPage != 1) { lnkfist.NavigateUrl = System.Web.HttpContext.Current.Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(1) + query; } //***一页 if (CurPage != PageCount) { lnklast.NavigateUrl = System.Web.HttpContext.Current.Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(PageCount) + query; } displaycontent.Text = contentArray[CurPage - 1].ToString(); } #region System.Web.UI.WebControls.HyperLink DisplayContent public System.Web.UI.WebControls.Label DisplayContent { get { return this.DisplayContent; } set { this.displaycontent = value; } } #endregion #region System.Web.UI.WebControls.HyperLink Lnkprev public System.Web.UI.WebControls.HyperLink Lnkprev { get { return this.lnkprev; } set { this.lnkprev = value; } } #endregion #region System.Web.UI.WebControls.HyperLink Lnknext public System.Web.UI.WebControls.HyperLink Lnknext { get { return this.lnknext; } set { this.lnknext = value; } } #endregion #region System.Web.UI.WebControls.HyperLink Lnkfist public System.Web.UI.WebControls.HyperLink Lnkfist { get { return this.lnkfist; } set { this.lnkfist = value; } } #endregion #region System.Web.UI.WebControls.HyperLink Lnklast public System.Web.UI.WebControls.HyperLink Lnklast { get { return this.lnklast; } set { this.lnklast = value; } } #endregion #region System.Web.UI.WebControls.Label Pagenum public System.Web.UI.WebControls.Label Pagenum { get { return this.pagenum; } set { this.pagenum = value; } } #endregion #region System.Web.UI.WebControls.Label Pagecount public System.Web.UI.WebControls.Label Pagecount { get { return this.pagecount; } set { this.pagecount = value; } } #endregion #region 将字符串分割成数组 /// /// 将字符串分割成数组 /// summary> /// param> /// param> /// returns> public string[] StringSplit(string strSource, string strSplit) { string[] strtmp = new string[1]; int index = strSource.IndexOf(strSplit, 0); if (index < 0) { strtmp[0] = strSource; return strtmp; } else { strtmp[0] = strSource.Substring(0, index); return StringSplit(strSource.Substring(index + strSplit.Length), strSplit, strtmp); } } #endregion #region 采用递归将字符串分割成数组 /// /// 采用递归将字符串分割成数组 /// summary> /// param> /// param> /// param> /// returns> private string[] StringSplit(string strSource, string strSplit, string[] attachArray) { string[] strtmp = new string[attachArray.Length + 1]; attachArray.CopyTo(strtmp, 0); int index = strSource.IndexOf(strSplit, 0); if (index < 0) { strtmp[attachArray.Length] = strSource; return strtmp; } else { strtmp[attachArray.Length] = strSource.Substring(0, index); return StringSplit(strSource.Substring(index + strSplit.Length), strSplit, strtmp); } } #endregion }
asp.net分页代码2 调用部分:
在aspx中增加label等元素。
< asp:label id="currentpage" runat="server" CssClass="gray">当前页< /asp:label> < asp:label id="totalpage" runat="server" CssClass="gray">Label< /asp:label> < asp:hyperlink id="lnkfist" runat="server" CssClass="gray">首页< /asp:hyperlink>| < asp:hyperlink id="lnkprev" runat="server" CssClass="gray">前页< /asp:hyperlink>| < asp:hyperlink id="lnknext" runat="server" CssClass="gray">下页< /asp:hyperlink>| < asp:hyperlink id="lnklast" runat="server" CssClass="gray">尾页< /asp:hyperlink>
在aspx.cs中增加调用代码。
private ContentPager pager; protected void Page_Load(object sender, EventArgs e) { int id = Convert.ToInt32(Request.QueryString["id"]);//接收参数,例如访问这个页是xxx.aspx?id=1 DataSet ds = new DataSet(); //从数据库读内容部分就略掉了 DataRow drow; drow = ds.Tables[0].Rows[0]; string cont = drow["content"].ToString();//此部分可以把内容中的HTML代码转换一下,我也省略了 //文章分页,关键部分 pager = new ContentPager(); pager.Lnknext = this.lnknext; pager.Lnkprev = this.lnkprev; pager.Lnklast = this.lnklast; pager.Lnkfist = this.lnkfist; pager.Pagenum = this.currentpage; pager.Pagecount = this.totalpage; pager.DisplayContent = this.content; string query = "&id=" + Request.QueryString["id"].ToString(); pager.datapager(cont, query); }
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文章名称:ASP.NET中怎么实现分页
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