DataList编辑、更新、取消、删除、分页

最新推荐文章于 2019-01-31 13:25:45 发布

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最新推荐文章于 2019-01-31 13:25:45 发布

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本文链接：https://blog.youkuaiyun.com/hffyyff/article/details/83688712

本文详细介绍了ASP.NET中DataList控件的使用方法，包括编辑、更新、取消、删除和分页功能的实现。通过示例代码展示了如何利用DataList控件进行数据展示与操作，适合Web开发者学习。

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html代码：

<% ... @ Page Language="C#" AutoEventWireup="true" CodeFile="DataList_DeleteUpdate1.aspx.cs"

Inherits="DataList_DataList_DeleteUpdate1" %>

<% ... @ Register Assembly="AspNetPager" Namespace="Wuqi.Webdiyer" TagPrefix="webdiyer" %>

<! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >

< html xmlns ="http://www.w3.org/1999/xhtml" >

< head runat ="server" >

< title > DataList编辑、更新、取消、删除、分页 </ title >

</ head >

< body >

< form id ="form1" runat ="server" >

< div >

< table width ="100%" border ="0" cellpadding ="0" cellspacing ="0" >

< tr >

< td >

< asp:DataList ID ="DataList1" runat ="server" Font-Size ="12px" Width ="100%" DataKeyField ="ProductID"

OnCancelCommand ="DataList1_CancelCommand" OnDeleteCommand ="DataList1_DeleteCommand"

OnEditCommand ="DataList1_EditCommand" OnUpdateCommand ="DataList1_UpdateCommand" >

< HeaderTemplate >

< td >

au_id </ td >

< td >

au_lname </ td >

< td >

au_fname </ td >

< td >

phone </ td >

< td >

address </ td >

< td >

编辑 </ td >

< td >

删除 </ td >

</ HeaderTemplate >

< ItemTemplate >

< td >

< asp:Label ID ="Lbl_au_id" Text ='<%#Eval("au_id")% > ' runat="server"> </ asp:Label >

</ td >

< td >

< asp:Label ID ="Lbl_au_lname" Text ='<%#Eval("au_lname")% > ' runat="server"> </ asp:Label >

</ td >

< td >

< asp:Label ID ="Lbl_au_fname" Text ='<%#Eval("au_fname")% > ' runat="server"> </ asp:Label >

</ td >

< td >

< asp:Label ID ="Lbl_phone" Text ='<%#Eval("phone")% > ' runat="server"> </ asp:Label >

</ td >

< td >

< asp:Label ID ="Lbl_address" Text ='<%#Eval("address")% > ' runat="server"> </ asp:Label >

</ td >

< td >

< asp:LinkButton ID ="LinkButton1" Text ="编辑" CommandName ="Edit" runat ="server" ></ asp:LinkButton >

</ td >

< td >

< asp:LinkButton ID ="LinkButton3" Text ="删除" CommandName ="Delete" runat ="server" ></ asp:LinkButton >

</ td >

</ ItemTemplate >

< EditItemTemplate >

< td >

< asp:Label ID ="Lbl_au_id" Text ='<%#Eval("au_id")% > ' runat="server"> </ asp:Label >

</ td >

< td >

< asp:TextBox ID ="Txt_au_lname" Text ='<%#Eval("au_lname")% > ' runat="server"> </ asp:TextBox >

</ td >

< td >

< asp:TextBox ID ="Txt_au_fname" Text ='<%#Eval("au_fname")% > ' runat="server"> </ asp:TextBox >

</ td >

< td >

< asp:TextBox ID ="Txt_phone" Text ='<%#Eval("phone")% > ' runat="server"> </ asp:TextBox >

</ td >

< td >

< asp:TextBox ID ="Txt_address" Text ='<%#Eval("address")% > ' runat="server"> </ asp:TextBox >

</ td >

< td >

< asp:LinkButton ID ="LinkButton1" Text ="更新" CommandName ="Update" runat ="server" ></ asp:LinkButton >

< asp:LinkButton ID ="LinkButton2" Text ="取消" CommandName ="Cancel" runat ="server" ></ asp:LinkButton >

</ td >

< td >

< asp:LinkButton ID ="LinkButton3" Text ="删除" CommandName ="Delete" runat ="server" ></ asp:LinkButton >

</ td >

</ EditItemTemplate >

< FooterTemplate >

</ FooterTemplate >

</ asp:DataList >

</ td >

</ tr >

< tr >

< td align ="center" >

< webdiyer:AspNetPager ID ="pager1" runat ="server" Font-Size ="12px" ShowCustomInfoSection ="Left"

OnPageChanged ="ChangePage" ShowInputBox ="Always" CustomInfoSectionWidth ="80%"

SubmitButtonText ="go" >

</ webdiyer:AspNetPager >

</ td >

</ tr >

</ table >

</ div >

</ form >

</ body >

</ html >

cs代码：

using System;

using System.Data;

using System.Configuration;

using System.Collections;

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 Wuqi.Webdiyer;

public partial class DataList_DataList_DeleteUpdate1 : System.Web.UI.Page

... {

public string tblName = "authors";//表名

public string fldName = "au_id";//主键字段名

public int IsReCount = 1;//是否

public int OrderType = 0;//排序 0升，非0降

public string strWhere = "";//条件

Practice.DAL.authors authorsbll = new Practice.DAL.authors();

protected void Page_Load(object sender, EventArgs e)

...{

if (!IsPostBack)

...{

pager1.CurrentPageIndex = 1;//页数

pager1.PageSize = 5;//每页多少条

pager1.RecordCount = Convert.ToInt32(GetDataSet().Tables[1].Rows[0][0].ToString());//共多少条

DataBindGridView();

}

//返回dataSet

private DataSet GetDataSet()

...{

DataSet ds = authorsbll.Minutepage(tblName, fldName, pager1.PageSize, pager1.CurrentPageIndex, IsReCount, OrderType, strWhere);

return ds;

}

//绑定GridView

private void DataBindGridView()

...{

DataList1.DataSource = GetDataSet().Tables[0];

DataList1.DataKeyField = fldName;

DataList1.DataBind();

//显示记录信息

pager1.CustomInfoText = "记录总数：<b>" + pager1.RecordCount.ToString() + "</b>";

pager1.CustomInfoText += " 总页数：<b>" + pager1.PageCount.ToString() + "</b>";

pager1.CustomInfoText += " 当前页：<font color="red"><b>" + pager1.CurrentPageIndex.ToString() + "</b></font>";

}

//DataList编辑

protected void DataList1_EditCommand(object source, DataListCommandEventArgs e)

...{

DataList1.EditItemIndex = e.Item.ItemIndex;

DataBindGridView();

}

//DataList取消

protected void DataList1_CancelCommand(object source, DataListCommandEventArgs e)

...{

DataList1.EditItemIndex = -1;

DataBindGridView();

}

//DataList更新

protected void DataList1_UpdateCommand(object source, DataListCommandEventArgs e)

...{

string au_id = DataList1.DataKeys[e.Item.ItemIndex].ToString();

string au_lname = ((TextBox)e.Item.FindControl("Txt_au_lname")).Text.Trim();

Response.Write("更新时:<br/>au_id: " + au_id + "<br/>au_lname: " + au_lname);

DataList1.EditItemIndex = -1;

DataBindGridView();

}

//DataList删除

protected void DataList1_DeleteCommand(object source, DataListCommandEventArgs e)

...{

string au_id = DataList1.DataKeys[e.Item.ItemIndex].ToString();

string au_lname = ((Label)e.Item.FindControl("Lbl_au_lname")).Text.Trim();

Response.Write("删除时:<br/>au_id: " + au_id + "<br/>au_lname: " + au_lname);

DataBindGridView();

}

//分页

protected void ChangePage(object src, PageChangedEventArgs e)

...{

pager1.CurrentPageIndex = e.NewPageIndex;

DataBindGridView();

}

分页函数：

/**/ //// <summary>

/// </summary>

/// <param name="tblName">表名</param>

/// <param name="fldName">主键字段名</param>

/// <param name="PageSize">页尺寸</param>

/// <param name="PageIndex">页码</param>

/// <param name="IsReCount">返回记录总数, 非 0 值则返回</param>

/// <param name="OrderType">设置排序类型, 非 0 值则降序</param>

/// <param name="strWhere">查询条件 (注意: 不要加 where)</param>

/// <returns>ds</returns>

public DataSet Minutepage( string tblName, string fldName, int PageSize, int PageIndex, int IsReCount, int OrderType, string strWhere)

... {

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