The example in this article describes the method of ASP.net bulk downloading files. Share to everyone for your reference. The specific methods are as follows:
First, the realization step
In the user interface, the user selects the files that need to be downloaded, and the system creates a temporary folder on the server to store the selected files based on the selected files, and copies the selected files to the temporary folder. The RAR program is then invoked to compress the temporary folder
Because of the inconvenient use of the update program provided by Microsoft, this program is written again. This program is a year ago I wrote a program, at that time in the development of a CS version of the quotation system, because of the development process in haste, The code might be a little bit too spec. This program compiles only after the AutoUpdate.exe file is updatelist.xml with a configuration file, which upgrades and updates the local program files primarily through the version numb
Download
. NET does not specifically handle FTP classes, we can do the basic operation by invoking the FTP.EXE of the system itself or by invoking the Wininet.dll in the Win32 API. Hope that the following code for everyone.
Method One: Use Ftp.exe to invoke it through the process class.
Imports System.Diagnostics
...
Public Sub getfilebycallftp ()
' Defines the startup information for the processstartinfo,p
If you do not set the Web API to return data formatters, browser access to the interface will be different from the browser and different forms of results, because the default header of IE browser is Application/json, so when using IE browser to access the interface, You always need to download the JSON file. Of course you can also modify the return data form on the server.In the Application_Start () method of the global file, add the following phra
File download, first get the path of the file, in the file through the call to the storage address, through the return files (path, "Text/plain", Url.encode (name)), can be downloaded directly, but you must modify the return data type "Text/plain"//File download[ActionName ("Dowload")]Public ActionResult dowload (){string file = request["accessory"];string name = NULL;string path = null;String path = Server
Considering the suggestions of some friends, we will continue to keep and be compatible with the development of net1.1. Version 1.9.6 has been improved.
This version:
1. Improved the query analyzer.
2. optimized the dal and dalfactory
CodeTo reduce the amount of code.
3. Fixed some other bugs and improved version 1.9.6.
You can view the function information of the software:. Net Automatic Code Generator introduction.
time zones, using different colors, EBNS, etc.
Support to connect the progress bar directly with the mouse
Support Progress bar grouping
Supports using the mouse to select progress bars or connectors, and can be moved and deleted
Supports custom overlapping progress bars with different offsets, transparencies, colors, models, and different appearances
Support for undo and redo operations
Table supports multi-column multi-layer display
Multi-line items display Support
zones, using different colors, EBNS, etc.
Support to connect the progress bar directly with the mouse
Support Progress bar grouping
Supports using the mouse to select progress bars or connectors, and can be moved and deleted
Supports custom overlapping progress bars with different offsets, transparencies, colors, models, and different appearances
Support for undo and redo operations
Table supports multi-column multi-layer display
Multi-line items display Support
NowSource codeI hope it will be useful to you. Click here to download the source code.
Due to my mistake, I will testCodePut it on the Internet, so that many friends can not debug. Today, I tested the system completely and implemented uploading the 28m file under the default. Net configuration. The previous bug was modified: The last time the data was read, it took too long. The source code has been update
Dockpanel suite: this control is used to develop interfaces similar to vs.net and # develop.Web: http://sourceforge.net/projects/dockpanelsuite/
Zedgraph: a two-dimensional Chart Drawing control that can draw most of the Excel Charts.URL: http://zedgraph.sourceforge.net/
Math.net: open-source library for numerical operations implemented by C.Web: http://nmath.sourceforge.net/wiki/index.php/Main_Page
Commandbar: toolbar, menu, and buttonHttp://www.aisto.com/roeder/dotnet/ (and other stuff)
+ address is an extremely unsafe way. Here we use the return stream as the download.The background code is as follows: It is worth noting that previously we wanted to get ContentType directly using mimemapping.getmimemapping (file);But this class is under System.Web, and the core has abandoned the existing system.web.So in ASP. NET core we need a new class Fileextensioncontenttypeprovider to get the contenttype of the file.Write the HTML+JS code as f
. Net to download and upload excel files,. netexcel
The purpose of this article is to record problems encountered in the work, so that problems can be solved quickly in the future.
Page Tag:
FileName is the file name, for example:
String filename = "item color .xlsx"; HttpContext. current. response. contentType = "application/MS-excel"; HttpContext. current. response. addHeader ("Content-Disposition", "at
Progress read when the file is uploaded to the server Upfileresult result = new Upfileresult (); try {//Pre-read the file into memory, while calculating the upload progress IServiceProvider Provider = (IServiceProvider) httpcontext.current; Returns the portion of the HTTP request body that has been read. HttpWorkerRequest request = (HttpWorkerRequest) provider. GetService (typeof (HttpWorkerRequest)); Gets the upload size long length = long. Parse (Request. Getknownrequesthea
In the multi-file packaging used in the DotNetZip method to implement the multi-file compression packaging. You need to download the file to http://dotnetzip.codeplex.com/and then reference it.Default.aspx:Cellpadding= "8" cellspacing= "1" >Default.aspx.cs:Using System;Using System.Collections.Generic;Using System.Linq;Using System.Web;Using System.Web.UI;Using System.Web.UI.WebControls;Using System.IO;Using Ionic.zip;public partial class _default:sys
. NET Compact Framework 2.0 redistributable Quick info
file name:
netcfsetupv2.msi
Version:
2.0
date published:
10/27/2005
language:
English
download size:
Recently did Ali's video interface, very egg hurts, Ali's video capture cover picture is time limited, expired can not access, can only download after uploading.Nonsense not much to say directly on the codePublic actionresult uploadvideoimg (String URL){WebRequest request = webrequest.create (URL);WebResponse response = Request. GetResponse ();Stream reader = response. GetResponseStream ();listint temp = reader. ReadByte ();while (temp! =-1){bytes. Ad
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