javascript是运行在客户端的,通过javascript可以得到客户端屏幕的分辨率,鼠标位置等信息,那么怎样才可以将这些信息传给服务端的控件,并让服务端做相应的响应呢,现
在能想到的办法大概就是通过HtmlControls做中介。
下面给出一个简单的例子。
取得客户端的鼠标坐标并反馈到服务器端
前台代码:
<%@ Page language="c#" Codebehind="mouseXY.aspx.cs" AutoEventWireup="false" Inherits="CommonFunction.mouseXY" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>mouseXY</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio 7.0">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
<script language="javascript">
function document.onmousemove()
{
document.all("txtbox").value = event.screenX + "x" + event.screenY;
}
</script>
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="mouseXY" method="post" runat="server">
<input id="txtbox" type="hidden" name="txtbox" runat="server">
<asp:TextBox id="txtXY" style="Z-INDEX: 101; LEFT: 358px; POSITION: absolute; TOP: 85px" runat="server"></asp:TextBox>
<asp:Label id="Label1" style="Z-INDEX: 102; LEFT: 269px; POSITION: absolute; TOP: 89px" runat="server">鼠标坐标:</asp:Label>
<asp:Button id="btnGet" style="Z-INDEX: 103; LEFT: 282px; POSITION: absolute; TOP: 139px" runat="server" Text="获取当前客户端鼠标坐标"></asp:Button>
</form>
</body>
</HTML>
后台代码:
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;
namespace CommonFunction
{
/// <summary>
/// mouseXY 的摘要说明。
/// </summary>
public class mouseXY : System.Web.UI.Page
{
protected System.Web.UI.HtmlControls.HtmlInputHidden txtbox;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.WebControls.Button btnGet;
protected System.Web.UI.WebControls.TextBox txtXY;
private void Page_Load(object sender, System.EventArgs e)
{
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN:该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.btnGet.Click += new System.EventHandler(this.btnGet_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void btnGet_Click(object sender, System.EventArgs e)
{
txtXY.Text = txtbox.Value;
}
}
}