因为项目中只能用。net 1.1,所以atlas是用不了了,只能玩玩AjaxProfession.net, 下面是一个查询的案例。 在页面上放置一个DataGrid1,各种查询结果均放入其中,在client端的JS中将SQL语句传给server端的方法,执行一个查询,并可以控 制双击行是否展开一个新的查询。可将DataGrid1的内容导出到Excel中、模拟gmail的Ajax的loading运用 using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.IO;
namespace eol
{
/**//// <summary>
/// index 的摘要描述。
/// </summary>
public class index : System.Web.UI.Page
{
protected System.Web.UI.WebControls.TextBox TextBox1;
protected WebControlLibrary.InputCalendar startTime;
protected WebControlLibrary.InputCalendar endTime;
protected WebControlLibrary.InputCalendar pStartTime;
protected WebControlLibrary.InputCalendar pEndTime;
protected System.Data.SqlClient.SqlConnection Conn=new SqlConnection();
protected System.Web.UI.WebControls.TextBox eformsn;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.WebControls.DataGrid DataGrid1=new DataGrid();
protected System.Web.UI.WebControls.Button Button2;
protected System.Web.UI.HtmlControls.HtmlInputText applicant;
public string toExcel;
private void Page_Load(object sender, System.EventArgs e)
{
AjaxPro.Utility.RegisterTypeForAjax(typeof(eol.index));
}
public DataSet DB(string dataName, string sqlCmd)
{
string connStr="server=172.16.0.120;uid=msikdb;pwd=dbmsik;database="+dataName;
Conn.ConnectionString=connStr;
try
{
Conn.Open();
}
catch(Exception ex)
{
Conn.Close();
Response.Write(ex.Message);
}
SqlCommand cmd=new SqlCommand(sqlCmd, Conn);
SqlDataAdapter da=new SqlDataAdapter();
da.SelectCommand=cmd;
DataSet ds = new DataSet();
da.Fill(ds);
Conn.Close();
return ds;
}
Web Form 设计工具产生的程式码#region Web Form 设计工具产生的程式码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 此为 ASP.NET Web Form 设计工具所需的呼叫。
//
InitializeComponent();
base.OnInit(e);
}
/**//// <summary>
/// 此为设计工具支援所必须的方法 - 请勿使用程式码编辑器修改
/// 这个方法的内容。
/// </summary>
private void InitializeComponent()
{
this.Conn = new System.Data.SqlClient.SqlConnection();
this.Button2.Click += new System.EventHandler(this.Button2_Click);
this.DataGrid1.ItemCreated += new System.Web.UI.WebControls.DataGridItemEventHandler(this.getPageIndexStyle);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void getPageIndexStyle(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
if(e.Item.ItemType == ListItemType.Pager)
{
e.Item.Cells[0].Text="Total Row:"+this.DataGrid1.Items.Count.ToString();
}
}
[AjaxPro.AjaxMethod]
public string AjaxData(string sSql, bool clientEvent)
{
if (clientEvent)
{
DataGrid1.ItemDataBound+=new DataGridItemEventHandler(DataGrid1_ItemDataBound);
}
// DataGrid1.AllowPaging=true;
// DataGrid1.PagerStyle.Position=PagerPosition.Top;
// DataGrid1.PagerStyle.Mode=PagerMode.NumericPages;
// DataGrid1.ItemCreated+=new DataGridItemEventHandler(getPageIndexStyle);
DataGrid1.DataSource=DB("query",sSql);
DataGrid1.HeaderStyle.BackColor=System.Drawing.Color.Blue;
DataGrid1.Width=Unit.Percentage(100);
DataGrid1.HeaderStyle.ForeColor=System.Drawing.Color.White;
DataGrid1.DataBind();
System.Text.StringBuilder sb=new System.Text.StringBuilder();
System.IO.StringWriter sw=new System.IO.StringWriter(sb);
System.Web.UI.HtmlTextWriter htw=new HtmlTextWriter(sw);
this.DataGrid1.RenderControl(htw);
string s=sb.ToString()。Replace(" 上午 12:00:00", "");
this.toExcel=s;
Session["txtExcel"]=s;
return s;
}
public void setToExcel()
{
//下面这行很重要,attachment 参数表示作为附件下载,您可以改成online在线打开
//filename=FileFlow.xls 指定输出文件的名称,注意其扩展名和指定文件类型相符,可以为:。doc .xls .txt .htm
Response.AppendHeader("Content-Disposition","attachment;filename=EOL_"+eformsn.Text+".xls");
Response.ContentEncoding=System.Text.Encoding.GetEncoding("big5");
//Response.ContentType指定文件类型 可以为application/ms-excel,application/ms-word ,application/ms-txt,application/ms-html或其他浏览器可直接支持文档
Response.ContentType = "application/ms-excel";
Response.Write(this.toExcel);
Response.Write(Session["txtExcel"]);
Session.Abandon();
Response.End();
}
private void Button2_Click(object sender, System.EventArgs e)
{
setToExcel();
}
private void DataGrid1_ItemDataBound(object sender, DataGridItemEventArgs e)
{
ListItemType itemtype=(ListItemType)e.Item.ItemType;
if (itemtype!=ListItemType.Header && itemtype!=ListItemType.Footer && itemtype!=ListItemType.Separator)
{
e.Item.Attributes.Add("ondblclick", "showDetail("+e.Item.Cells[1].Text+");");
e.Item.Attributes.Add("onmouseover","this.className='mouseOn'");
e.Item.Attributes.Add("onmouseout", "this.className=''");
}
}
}
}
Client端的js:
<script language="javascript">
var obj=document.all;
var frm=document.forms[0];
var box=document.getElementById("detail");
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