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    ▪asp.net updatepanel 导致JS不能加载,而无法使用的解决方法       代码如下:<script type="text/javascript" language="javascript">    var prm = Sys.WebForms.PageRequestManager.getInstance();    prm.add_endRequest(function () {        // re-bind your jquery events here          $(docume.........

    ▪Asp.net FileUpload+Image制作头像效果示例代码       在Web开发中会经常使用到个人信息注册，而个人信息中通常需要自己的头像或者照片。今天主要介绍一下使用FileUpload+img控件上传照片。 FileUpLoad控件使用介绍 FileUpLoad控件的PostedFile属性主.........

    ▪Asp.net第三方控件ComboBox组合框介绍       可以填写，可以选择，可以根据填写内容自动搜索可选项中部分匹配的项 详情 代码如下: http://webfx.eae.net/dhtml/combobox/combobox.htm http://webfx.eae.net/dhtml/combobox/combo_demo.htm 另外AjaxControlToolkit中.........

代码如下:

<script type="text/javascript" language="javascript">
    var prm = Sys.WebForms.PageRequestManager.getInstance();
    prm.add_endRequest(function () {
        // re-bind your jquery events here 
        $(document).ready(function () {

            //begin
            var span = $("input[id*='txtSpan']");
            span.focusout(function () {
                var greaterthenzero = (span.val() == 0);
                if (span.val() == 0) {
                    $("#spRule").show();
                    $("input[id*='btnSave']").attr("disabled","disabled");
                }
                else {
                    $("#spRule").hide();
                    $("input[id*='btnSave']").removeAttr("disabled");
                }
            });
            //end

        });
    }
 );
</script>

代码如下:

<system.web>
<httpRuntime maxRequestLength="4096"//这里的4096就是4m，原先是默认的。你改一下这个，就可以了。
executionTimeout="3600"
/>
</system.web>

代码如下:

".*"="application/octet-stream"
".001"="application/x-001"
".301"="application/x-301"
".323"="text/h323"
".906"="application/x-906"
".907"="drawing/907"
".a11"="application/x-a11"
".acp"="audio/x-mei-aac"
".ai"="application/postscript"
".aif"="audio/aiff"
".aifc"="audio/aiff"
".aiff"="audio/aiff"
".anv"="application/x-anv"
".asa"="text/asa"
".asf"="video/x-ms-asf"
".asp"="text/asp"
".asx"="video/x-ms-asf"
".au"="audio/basic"
".avi"="video/avi"
".awf"="application/vnd.adobe.workflow"
".biz"="text/xml"
".bmp"="application/x-bmp"
".bot"="application/x-bot"
".c4t"="application/x-c4t"
".c90"="application/x-c90"
".cal"="application/x-cals"
".cat"="application/vnd.ms-pki.seccat"
".cdf"="application/x-netcdf"
".cdr"="application/x-cdr"
".cel"="application/x-cel"
".cer"="application/x-x509-ca-cert"
".cg4"="application/x-g4"
".cgm"="application/x-cgm"
".cit"="application/x-cit"
".class"="java/*"
".cml"="text/xml"
".cmp"="application/x-cmp"
".cmx"="application/x-cmx"
".cot"="application/x-cot"
".crl"="application/pkix-crl"
".crt"="application/x-x509-ca-cert"
".csi"="application/x-csi"
".css"="text/css"
".cut"="application/x-cut"
".dbf"="application/x-dbf"
".dbm"="application/x-dbm"
".dbx"="application/x-dbx"
".dcd"="text/xml"
".dcx"="application/x-dcx"
".der"="application/x-x509-ca-cert"
".dgn"="application/x-dgn"
".dib"="application/x-dib"
".dll"="application/x-msdownload"
".doc"="application/msword"
".dot"="application/msword"
".drw"="application/x-drw"
".dtd"="text/xml"
".dwf"="Model/vnd.dwf"
".dwf"="application/x-dwf"
".dwg"="application/x-dwg"
".dxb"="application/x-dxb"
".dxf"="application/x-dxf"
".edn"="application/vnd.adobe.edn"
".emf"="application/x-emf"
".eml"="message/rfc822"
".ent"="text/xml"
".epi"="application/x-epi"
".eps"="application/x-ps"
".eps"="application/postscript"
".etd"="application/x-ebx"
".exe"="application/x-msdownload"
".fax"="image/fax"
".fdf"="application/vnd.fdf"
".fif"="application/fractals"
".fo"="text/xml"
".frm"="application/x-frm"
".g4"="application/x-g4"
".gbr"="application/x-gbr"
".gcd"="application/x-gcd"
".gif"="image/gif"
".gl2"="application/x-gl2"
".gp4"="application/x-gp4"
".hgl"="application/x-hgl"
".hmr"="application/x-hmr"
".hpg"="application/x-hpgl"
".hpl"="application/x-hpl"
".hqx"="application/mac-binhex40"
".hrf"="application/x-hrf"
".hta"="application/hta"
".htc"="text/x-component"
".htm"="text/html"
".html"="text/html"
".htt"="text/webviewhtml"
".htx"="text/html"
".icb"="application/x-icb"
".ico"="image/x-icon"
".ico"="application/x-ico"
".iff"="application/x-iff"
".ig4"="application/x-g4"
".igs"="application/x-igs"
".iii"="application/x-iphone"
".img"="application/x-img"
".ins"="application/x-internet-signup"
".isp"="application/x-internet-signup"
".IVF"="video/x-ivf"
".java"="java/*"
".jfif"="image/jpeg"
".jpe"="image/jpeg"
".jpe"="application/x-jpe"
".jpeg"="image/jpeg"
".jpg"="application/x-jpg"
".js"="application/x-javascript"
".jsp"="text/html"
".la1"="audio/x-liquid-file"
".lar"="application/x-laplayer-reg"
".latex"="application/x-latex"
".lavs"="audio/x-liquid-secure"
".lbm"="application/x-lbm"
".lmsff"="audio/x-la-lms"
".ls"="application/x-javascript"
".ltr"="application/x-ltr"

代码如下:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Fileup.aspx.cs" Inherits="Testcookie.Fileup" %>
<!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></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Image ID="Image1" runat="server" Height="180px" Width="191px" ImageUrl="~/Photo/untitled.png" />
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button ID="btnupload" runat="server" Text="Button" onclick="btnupload_Click<SPAN >" /></SPAN>
<asp:Button ID="btndelete" runat="server" Text="Button" onclick="btndelete_Click" />
</div>
</form>
</body>
</html>

代码如下:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace Testcookie
{
public partial class Fileup : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnupload_Click(object sender, EventArgs e)
{
int length= this.FileUpload1.PostedFile.ContentLength;//<SPAN >获取图片大小，以字节为单位</SPAN>
if(length<4000)
{
Response.Write("<script language='javascript'>alert('您选择的图片过大！');</script>");
}
else{
String type=this.FileUpload1.PostedFile.ContentType;//<SPAN >获取上传文件类型</SPAN>
String fullfilename = this.FileUpload1.PostedFile.FileName;//<SPAN >获取上传文件在客户端的路径及名称</SPAN>
String filename = fullfilename.Substring(fullfilename.LastIndexOf("\\")+1);
String extensions = filename.Substring(filename.LastIndexOf (".")+1);//<SPAN >获取文件扩展名</SPAN>
string name=DateTime.Now.ToString("yyyyMMddHHmmss");
if (type == "image/jpeg" || type == "image/png" )//限制上传格式
{
this.FileUpload1.SaveAs(Server.MapPath("Photo") + "\\" + name + "." + extensions);//<SPAN >将图片以当前时间命名保存，避免上传图片命名重复</SPAN>
<SPAN >//设置上传图片大小为原图片大小</SPAN>
//System.Drawing.Image img = System.Drawing.Image.FromFile(this.Server.MapPath("Photo") + "\\" + name + "." + extensions);//获得图片文件
//int width = img.Width;
//this.Image1.Width = width;//这是宽设置Image控件的宽度为图片宽度
//int height = img.Height;
//this.Image1.Height = height;//这是高，设置Image控件的高度为图片的高度
this.Image1.ImageUrl = "Photo/" + name + "." + extensions;
}
else
{
Response.Write("<script language='javascript'>alert('您选择的图片有误！');</script>");
}
}
}
protected void btndelete_Click (object sender, EventArgs e)
{
<SPAN >//删除图片</SPAN>
if (System.IO.File.Exists(Server.MapPath("Photo")+"\\20130808084433.PNG"))
{
try
{
System.IO.File.Delete(Server.MapPath("Photo") + "\\20130808084433.PNG");
}
catch
{
throw new Exception("文件删除失败！");
}
}
}
}
}

代码如下:

http://webfx.eae.net/dhtml/combobox/combobox.htm
http://webfx.eae.net/dhtml/combobox/combo_demo.htm

代码如下:

((TextBox)((Table)ComboBoxComponent.Controls[0]).Rows[0].Cells[0].Controls[0]).Text