- Tech
- Use WebClient implementation
Screenshot
<![CDATA[ using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.IO; using System.Net; using System.Threading; namespace Download {/// <Summary> /// Form1 Summary Description. /// </ summary> public class Form1: System.Windows.Forms.Form {private System.Windows.Forms.Label label1; private System.Windows.Forms.Label label2; private System.Windows.Forms.TextBox txtURI; private System.Windows.Forms.TextBox txtPath; private System.Windows.Forms.Button btnSelect; private System.Windows.Forms.Button btnDownLoad; private System.Windows.Forms.StatusBar stBar; private System.Windows.Forms.FolderBrowserDialog folderBD; / / Using WebClient methods to implement file download private webclient client = new webclient (); /// <summary> // / / / / /// </ summary> private system.componentmodel.container components = null;</p>
<p>Public Form1 () {// // Windows Form Designer Support for // InitializeComponent ();</p>
<p>// // Todo: Add any constructor code after INITIALIZEComponent call //}</p>
<p>/// <Summary> /// Clean all the resources being used. /// </ summary> Protected Override Void Dispose (Bool Disposing) {if (disponents! = Null) {components.dispose ();}} Base.Dispose</p>
<p>#REGION Windows Form Designer The code /// <summary> /// designer supports the required method - do not use the code editor to modify the // / this method.</p>
<p>/// </ summary> private () {this.label1 = new system.windows.forms.Label (); this.label2 = new system.windows.forms.label (); this.txturi = new system. Windows.Forms.TextBox (); this.txtPath = new System.Windows.Forms.TextBox (); this.folderBD = new System.Windows.Forms.FolderBrowserDialog (); this.btnSelect = new System.Windows.Forms.Button (); This.btndownload = new system.windows.Forms.Button (); this.stbar = new system.windows.Forms.statusbar (); this.suspendlayout (); // // label1 // this.label1. Location = new system.drawing.point (8, 24); this.label1.name = "label1"; this.label1.size = new system.drawing.size (96, 23); this.label1.tabindex = 0; This.Label1.Text = "Download file URI:"; /// Label2 // this.label2.location = new system.drawing.point (16, 64); this.label2.name = "label2"; this .label2.Size = new System.Drawing.Size (88, 23); this.label2.TabIndex = 1; this.label2.Text = "local save path:"; // // txtURI // this. TXTURI.LOCATION = New System.drawing.Point (112, 25); this.txturi.Name = "txturi"; this.txturi.size = new system.drawing.size (208, 21); this.txturi.tabindex = 2; this.txturi.text = ""; /// TXTPATH // this.txtPath.Location = new system.drawing.point (112, 65); this.txtPath.name = "txtpath"; this.txtpath. Size = new system.drawing.size (208, 21); this.txtpath.tabindex = 3; this.txtpath.text = ""; /// btnselect // this.btnselect.location = new system.drawing.point (328, 64); this.btnselect.name = "btnselect";</p>
<p>THIS.BTNSELECT.TABINDEX = 4; this.btnselect.text = "Select Path ..."; this.btnselect.click = new system.eventhandler (this.btnselect_click); // // btndownload // this.btndownload. Location = new System.Drawing.Point (112, 104); this.btnDownLoad.Name = "btnDownLoad"; this.btnDownLoad.TabIndex = 5; this.btnDownLoad.Text = "Download"; this.btnDownLoad.Click = new System.eventhandler (this.btndownload_click); /// stbar // this.stbar.location = new system.drawing.point (0, 184); this.stbar.name = "stbar"; this.stbar.size = New system.drawing.size (424, 22); this.stbar.tabindex = 6; // // Form1 // this.autoscalebasesize = new system.drawing.size (6, 14); this.clientsize = new system. Drawing.size (424, 206); this.controls.add (this.stbar); this.Controls.add (this.btndownload); this.Controls.add (this.btnselect); this.Controls.Add (this. TXTPATH; this.Controls.add (this.txturi); this.controls.add (this.label2); this.controls.add (this.label1); this.name = "Form1"; this.text = "form1"; this.ResumeLayout (false);} #ENDREGION</p>
<p>/// <summary> /// The primary entry point of the application. /// </ summary> [stathread] static void main () {Application.run (new form1 ());}</p>
<p>Private void btnselect_click (Object sender, system.eventargs e) {if (folderbd.showdialog () == DialogResult.cancel) {return;} txtpath.text = folderbd.selectedPath;}</p>
<p>private void btnDownLoad_Click (object sender, System.EventArgs e) {// Open threads, to improve the user experience Thread th = new Thread (new ThreadStart (StartDownLoad));. //th.Name="New DownLoad "; th.Start ();} private void startDownLoad () {string url = string.Empty; string fileName = string.Empty; int n = 0; string path = string.Empty; btnDownLoad.Enabled = false; url = txtURI.Text; n = Url.lastIndexOf ('/'); filename = url.substring (n 1); path = txtpath.text "//" filename;</p>
<p>Try {WebRequest Request = WebRequest.create (URL);} catch (WebException EX) {MessageBox.show (ex.Message, "Error");</p>
<p>Try {stbar.text = "Start downloading files ..."; Client.downloadfile (URL, PATH); STBAR.TEXT = "Download, files have been saved" path.tostring ();} catch (WebException EX) {MessageBox.show (EXMESSAGE, "Error"); stbar.text = string.empty;} finally {btndownload.enabled = true;}}}} </ XMP></p></div><div class="text-center mt-3 text-grey">
转载请注明原文地址:https://www.9cbs.com/read-84674.html</div><div class="plugin d-flex justify-content-center mt-3"></div><hr><div class="row"><div class="col-lg-12 text-muted mt-2"><i class="icon-tags mr-2"></i><span class="badge border border-secondary mr-2"><h2 class="h6 mb-0 small"><a class="text-secondary" href="tag-2.html">9cbs</a></h2></span></div></div></div></div><div class="card card-postlist border-white shadow"><div class="card-body"><div class="card-title"><div class="d-flex justify-content-between"><div><b>New Post</b>(<span class="posts">0</span>)
</div><div></div></div></div><ul class="postlist list-unstyled">
</ul></div></div><div class="d-none threadlist"><input type="checkbox" name="modtid" value="84674" checked /></div></div></div></div></div><footer class="text-muted small bg-dark py-4 mt-3" id="footer"><div class="container"><div class="row"><div class="col">CopyRight © 2020 All Rights Reserved
</div><div class="col text-right">Processed:
<b>0.039</b>, SQL:
<b>9</b></div></div></div></footer><script src="./lang/en-us/lang.js?2.2.0"></script><script src="view/js/jquery.min.js?2.2.0"></script><script src="view/js/popper.min.js?2.2.0"></script><script src="view/js/bootstrap.min.js?2.2.0"></script><script src="view/js/xiuno.js?2.2.0"></script><script src="view/js/bootstrap-plugin.js?2.2.0"></script><script src="view/js/async.min.js?2.2.0"></script><script src="view/js/form.js?2.2.0"></script><script>
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 = 'TB6fkb4BtVy1WZtHJIuOzKUHlJQeLdWS5rcI9JQFbfIknMX79ZEem3X9ukREJ616QJ0UAgi03PEfciBeb_2Blnrg_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>]]> 
