Multi-file upload in ASP.NET author: Meng will come from: [Meng] will be the best of the world Date: 2003-5-20 23:41:07 ------------- -------------------------------------------------- ----------------- In the previous web application, the uploaded file is a very troublesome thing, now there is .NET, file uploads become gently easy. The following example implements a multi-file upload function. You can dynamically add input forms, and the number of files upload is not limited. code show as below:
MultiUPload.aspx
! <% @ Page Language = "vb" AutoEventWireup = "false" Codebehind = "MultiUpload.aspx.vb" Inherits = "aspxWeb.MultiUpload"%> Multi-file upload </ title> <script language =" javascript "> function addfile () {var str = '<input type =" file "size =" 50 "name = "File"> 'Document.getlementByid (' myfile '). INSERTADJACENTHTML ("BeForeEnd", Str)} </ script> </ head> <body> <form id = "Form1" method = "runat =" server "EncType =" multipart / form-data "> <center> <ask: label runat =" server "id =" mytitle "> </ asp: label> <p id =" myfile "> <input type =" file " Size = "50" name = "file"> </ p> <p> <input type = "Button" value = "increase (add)" οnclick = "addfile ()> <ask: button runat =" server " Text = "Upload" ID = "Upload"> </ asp: button> <input οnclick = this.form.reset () "type =" button "value =" reset (reset)> </ p> < / center> <p align = "center"> <asp: label id = "strstatus" runat = "server" font-names = "Song" font-bold = "true" font-size = "9pt" width = "500px" borderStyle = "none" bordercolor = "white"> <</p>
<p>/ asp: label> </ p> </ form> </ body> </ html> postcode: MultiUPload.aspx.vb</p>
<p>Public Class MultiUpload Inherits System.Web.UI.Page Protected WithEvents Upload As System.Web.UI.WebControls.Button Protected WithEvents MyTitle As System.Web.UI.WebControls.Label Protected WithEvents strStatus As System.Web.UI.WebControls.Label</p>
<p>#Region "Web Form Designer Generated Code"</p>
<p>'THIS CALL IS Required by The Web Form Designer. <System.diagnostics.debuggerstepthrough ()> private subinitializecomponent ()</p>
<p>End Sub</p>
<p>Private Sub Page_Init (ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init 'CODEGEN: This method call is required by the Web Form Designer' Do not modify it using the code editor InitializeComponent () End Sub.</p>
<p>#End region</p>
<p>Private Sub Page_Load (Byval E AS System.EventArgs) Handles mybase.load mytitle.text = "<h3> multi-file upload </ h3>" UPLOAD.TEXT = "Start Upload" IF (ME. Ispostback) Then me.saveImages () End Sub</p>
<p>Private function saveImages () as system.boolean 'traversal File form element DIM FILES as system.Web.httpFileCollection = system.Web.httpContext.current.Request.files</p></div><div class="text-center mt-3 text-grey">
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var debug = DEBUG = 0;
var url_rewrite_on = 1;
var url_path = './';
var forumarr = {"1":"Tech"};
var fid = 1;
var uid = 0;
var gid = 0;
xn.options.water_image_url = 'view/img/water-small.png';
</script><script src="view/js/wellcms.js?2.2.0"></script><a class="scroll-to-top rounded" href="javascript:void(0);"><i class="icon-angle-up"></i></a><a class="scroll-to-bottom rounded" href="javascript:void(0);" style="display: inline;"><i class="icon-angle-down"></i></a></body></html><script>
var forum_url = 'list-1.html';
var safe_token = '1KrSbp2igAWzrkR_2BGZ7mCB4tro6p6x_2Fkm16YvWKp40Lq2SWboOXVEK3mGc4K68FEIVI8rrgLQW9mHQLkbEdVzw_3D_3D';
var body = $('body');
body.on('submit', '#form', function() {
var jthis = $(this);
var jsubmit = jthis.find('#submit');
jthis.reset();
jsubmit.button('loading');
var postdata = jthis.serializeObject();
$.xpost(jthis.attr('action'), postdata, function(code, message) {
if(code == 0) {
location.reload();
} else {
$.alert(message);
jsubmit.button('reset');
}
});
return false;
});
function resize_image() {
var jmessagelist = $('div.message');
var first_width = jmessagelist.width();
jmessagelist.each(function() {
var jdiv = $(this);
var maxwidth = jdiv.attr('isfirst') ? first_width : jdiv.width();
var jmessage_width = Math.min(jdiv.width(), maxwidth);
jdiv.find('img, embed, iframe, video').each(function() {
var jimg = $(this);
var img_width = this.org_width;
var img_height = this.org_height;
if(!img_width) {
var img_width = jimg.attr('width');
var img_height = jimg.attr('height');
this.org_width = img_width;
this.org_height = img_height;
}
if(img_width > jmessage_width) {
if(this.tagName == 'IMG') {
jimg.width(jmessage_width);
jimg.css('height', 'auto');
jimg.css('cursor', 'pointer');
jimg.on('click', function() {
});
} else {
jimg.width(jmessage_width);
var height = (img_height / img_width) * jimg.width();
jimg.height(height);
}
}
});
});
}
function resize_table() {
$('div.message').each(function() {
var jdiv = $(this);
jdiv.find('table').addClass('table').wrap('<div class="table-responsive"></div>');
});
}
$(function() {
resize_image();
resize_table();
$(window).on('resize', resize_image);
});
var jmessage = $('#message');
jmessage.on('focus', function() {if(jmessage.t) { clearTimeout(jmessage.t); jmessage.t = null; } jmessage.css('height', '6rem'); });
jmessage.on('blur', function() {jmessage.t = setTimeout(function() { jmessage.css('height', '2.5rem');}, 1000); });
$('#nav li[data-active="fid-1"]').addClass('active');
</script>
