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1.建立用户控件Pager.ascx
1.1 html
<script language="javascript">
function callButtonEvent()
{ var keycode =window.event.keyCode; if(keycode==13) { if(check()==true) { event.cancelBubble=true; event.returnValue=false; document.getElementById('<%=btnGo.ClientID%>').click();
} } } function check() { var count = parseInt(document.getElementById('<%=lblTotal.ClientID%>').outerText); var txt = document.getElementById('<%=txtCurrentPage.ClientID%>').value; var cur = parseInt(txt); if ((cur | NaN) ==0) { alert('Input page must format as integer.'); event.cancelPostBack=true; return false; } if (cur > count || cur < 1) { alert('Input page no out of range.'); event.cancelPostBack=true; return false; }
}
</script><TABLE ID="Table1" CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0"> <colgroup> <col width="400"> <col width="50"> <col width="50"> <col width="40"> <col width="20"> <col width="40"> <col width="40"> <col width="50"> <col width="70"> </colgroup> <TR align="right"> <td></td> <TD><asp:LinkButton id="btnFirstPage" runat="server" CommandArgument="First">第一页</asp:LinkButton></TD> <TD><asp:LinkButton id="btnPrevPage" runat="server" CommandArgument="Prev">上一页</asp:LinkButton></TD> <TD><ASP:TEXTBOX ID="txtCurrentPage" RUNAT="server" MAXLENGTH="3" Width="40">0</ASP:TEXTBOX></TD> <TD><ASP:LABEL ID="labOf" RUNAT="server">of</ASP:LABEL></TD> <TD><ASP:LABEL ID="lblTotal" RUNAT="server">0</ASP:LABEL></TD> <TD><ASP:BUTTON ID="btnGo" RUNAT="server" TEXT="转到" COMMANDARGUMENT="Go" ToolTip="转到"></ASP:BUTTON></TD> <TD><asp:LinkButton id="btnNextPage" runat="server" CommandArgument="Next">下一页</asp:LinkButton></TD> <TD><asp:LinkButton id="btnLastPage" runat="server" CommandArgument="Last">最后一页</asp:LinkButton></TD> </TR></TABLE>1.2 cs代码
public class Pager : System.Web.UI.UserControl { protected System.Web.UI.WebControls.Label lblTotal; protected System.Web.UI.WebControls.Label labOf; protected System.Web.UI.WebControls.TextBox txtCurrentPage; protected System.Web.UI.WebControls.Button btnGo; protected System.Web.UI.WebControls.LinkButton btnFirstPage; protected System.Web.UI.WebControls.LinkButton btnPrevPage; protected System.Web.UI.WebControls.LinkButton btnNextPage; protected System.Web.UI.WebControls.LinkButton btnLastPage; int size=10;//可以在web.config中配置 public event System.EventHandler NavigationClick; private void Page_Load(object sender, System.EventArgs e) { this.txtCurrentPage.Attributes.Add("onkeypress","callButtonEvent();"); this.btnGo.Attributes.Add("onclick","check();"); if(!this.IsPostBack) { SetStyle(); SetEnable(); } } Web Form Designer generated code#region Web Form Designer generated code override protected void OnInit(EventArgs e) { // // CODEGEN: This call is required by the ASP.NET Web Form Designer. // InitializeComponent(); base.OnInit(e); this.btnFirstPage.Click += new System.EventHandler(this.btnGo_Click); this.btnPrevPage.Click += new System.EventHandler(this.btnGo_Click); this.btnNextPage.Click += new System.EventHandler(this.btnGo_Click); this.btnLastPage.Click += new System.EventHandler(this.btnGo_Click); this.btnGo.Click += new System.EventHandler(this.btnGo_Click); } /**//// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { this.Load += new System.EventHandler(this.Page_Load); } #endregion btnGo_Click#region btnGo_Click private void btnGo_Click(object sender, System.EventArgs e) { LinkButton linkbtn = sender as LinkButton; if( null == linkbtn )//button { Button btn = sender as Button; if( null == btn ) { return; } else { int selPage = -1; try { selPage =Int32.Parse(txtCurrentPage.Text); } catch { selPage = -1; } if (selPage > 0 && selPage <= PageCount) { ViewState["CurrentPageIndex"] = selPage; } else { return; } } } else//linkbutton { switch ( linkbtn.CommandArgument.Trim() ) { case "First": ViewState["CurrentPageIndex"] = 1; break; case "Prev": ViewState["CurrentPageIndex"] = (CurrentPageIndex > 1) ? CurrentPageIndex - 1 : 1; break; case "Next": ViewState["CurrentPageIndex"] = (PageCount > CurrentPageIndex) ? CurrentPageIndex + 1 : PageCount; break; case "Last": ViewState["CurrentPageIndex"] = PageCount; break; default: break; } } SetEnable();//设置显示样式 if (NavigationClick!=null)//调用事件 { NavigationClick( sender,e ); } } #endregion SetStyle#region SetStyle private void SetStyle() { this.btnFirstPage.Attributes["style"] = "CURSOR: hand"; this.btnLastPage.Attributes["style"] = "CURSOR: hand"; this.btnNextPage.Attributes["style"] = "CURSOR: hand"; this.btnPrevPage.Attributes["style"] = "CURSOR: hand"; } #endregion SetEnable#region SetEnable // 应根据当前的CurrentPageIndex和pageCount设定哪些按钮可用 private void SetEnable() { this.lblTotal.Text = PageCount.ToString(); txtCurrentPage.Text =CurrentPageIndex.ToString(); btnPrevPage.Enabled = false; btnNextPage.Enabled = false; if( PageCount >1 ) { btnFirstPage.Enabled = btnPrevPage.Enabled = ( CurrentPageIndex >1 ); btnNextPage.Enabled = btnLastPage.Enabled = ( CurrentPageIndex < PageCount ); } else { btnFirstPage.Enabled = false; btnLastPage.Enabled = false; btnPrevPage.Enabled = false; btnNextPage.Enabled = false; } } #endregion Property#region Property //获取或设置当前显示页的索引。 public int CurrentPageIndex { get { object cpage=ViewState["CurrentPageIndex"]; int pindex=(cpage==null)?1:(int)cpage; if(pindex>PageCount&&PageCount>0) return PageCount; else if(pindex<1) return 1; return pindex; } set { int cpage=value; if(cpage<1) cpage=1; else if(cpage>this.PageCount) cpage=this.PageCount; ViewState["CurrentPageIndex"]=cpage; } } // 获取或设置需要分页的所有记录的总数。 public int RecordCount { get { object obj=ViewState["Recordcount"]; return (obj==null)?0:(int)obj; } set { ViewState["Recordcount"]=value; SetEnable(); } } // 获取当前页之后的页的总数。 public int PagesRemain { get { return PageCount-CurrentPageIndex; } } // 获取或设置每页显示的项数。 public int PageSize { get { object obj=ViewState["PageSize"]; if (obj==null) { obj= size; } return (obj==null)?size:(int)obj; } set { int pageSize = value; if (Math.Abs(pageSize) == 0) pageSize = size; ViewState["PageSize"]=pageSize; } } // 获取在当前页之后还未显示的剩余记录的项数。 public int RecordsRemain { get { if(CurrentPageIndex<PageCount) { return RecordCount-(CurrentPageIndex*PageSize); } else { return 0; } } } // 获取所有要分页的记录需要的总页数。 public int PageCount { get{return (RecordCount > 0) ? (int)Math.Ceiling((double)RecordCount/(double)PageSize) : 1;} } public int XRecord { get { return int.Parse( System.Configuration.ConfigurationSettings.AppSettings["XRecord"].Trim() ); } } #endregion Property }2.建立DataGridPage.aspx
3.copy如下html代码
<HTML> <HEAD> <title>DataGridPage</title> <meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR"> <meta content="C#" name="CODE_LANGUAGE"> <meta content="JavaScript" name="vs_defaultClientScript"> <meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema"> </HEAD> <body MS_POSITIONING="GridLayout"> <form id="Form1" method="post" runat="server"> <asp:datagrid id="DataGrid1" style="Z-INDEX: 101; LEFT: 632px; POSITION: absolute; TOP: 40px" runat="server"></asp:datagrid><uc1:pager id="Pager1" runat="server"></uc1:pager><asp:datalist id="DataList1" style="Z-INDEX: 102; LEFT: 264px; POSITION: absolute; TOP: 40px" runat="server"> <ItemTemplate> <table> <tr> <td>用户ID:</td> <td><%# DataBinder.Eval(Container.DataItem, "UserID") %></td> <td>用户名:</td> <td><%# DataBinder.Eval(Container.DataItem, "UserName") %></td> </tr> </table> </ItemTemplate> </asp:datalist> <asp:repeater id="Repeater1" runat="server"> <HEADERTEMPLATE> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td>用户ID</td> <td>用户名:</td> </tr> </HEADERTEMPLATE> <ITEMTEMPLATE> <tr> <td> <%# DataBinder.Eval(Container.DataItem, "UserID")%> </td> <td><%# DataBinder.Eval(Container.DataItem, "UserName") %></td> </tr> </ITEMTEMPLATE> <FOOTERTEMPLATE> </table> </FOOTERTEMPLATE> </asp:repeater></form> </body></HTML>如果您非常迫切的想了解IT领域最新产品与技术信息，那么订阅至顶网技术邮件将是您的最佳途径之一。
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