WebForm version demo, analog phone USB interface charging

Last Update:2015-01-31 Source: Internet

Author: User

Tags iusb

Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

Bill of Materials: mobile (mobile phone), Minicharger (mini charger), IUSB (USB interface),

Design ideas:

1. Declare the interaction between the Iusb Convention objects, which contains an event;

2.Mobile implement IUSB interface, this is the key point, is the caller implements the interface, the demand through the event entrusted to the charging device self-processing;

3.Mobile reflective charging device, injected IUSB by the constructor function;

Code Listing:

1  Public Interface Iusb {2     decimal Get Set ; } 3     Event System.EventHandler connecting; 4     }

IUsb.cs

1<%@ Page language="C #"autoeventwireup="true"codefile="Mobile.aspx.cs"inherits="Mobile"%>2 3<! DOCTYPE html>4 5"http://www.w3.org/1999/xhtml">6"Server">7<meta http-equiv="Content-type"Content="text/html; Charset=utf-8"/>8<title></title>9Ten<body> One<form id="Form1"runat="Server"> A<div> -<label> Voltage: </label><asp:label id="Lblvoltage"runat="Server"text="0"></asp:Label> -<asp:label id="lblmessage"runat="Server"text="There 's no electricity."></asp:Label> the<asp:dropdownlist id="Drpselect"runat="Server"> -<asp:listitem text="Mini Charger"Value="Minicharger"></asp:ListItem> -</asp:DropDownList> -<asp:button id="Btnconnect"runat="Server"text="connecting the charging device"onclick="Btnconnect_click"/> +</div> -</form> +</body> Amobile.aspx1 usingSystem;2  Public Partial classMobile:System.Web.UI.Page, Iusb {3      Public decimalVoltage {Get;Set; }4      Public EventEventHandler connecting;5     protected Const decimalIncrement =0.5m;6     protected Const decimalMax =5.0m;7 8     protected ObjectLoadcharger (stringPType) {9         string_filename ="z:\\"+ PType +". DLL";Ten         Object[] _args =New Object[] { This }; One         returnSystem.Activator.CreateInstanceFrom ( A_filename, PType,true,0,NULL, _args,NULL,NULL); -         } -  the     protected voidBtnconnect_click (Objectsender, EventArgs e) { -          This. Loadcharger ( This. DrpSelect.SelectedItem.Value); -          This. ShowMessage (); -         } +  -     protected voidShowMessage () { +         if( This. connecting = =NULL) This. Lblmessage.text ="Device Not responding"; A         Else { at              This. Connecting (NULL, eventargs.empty); -              This. Lblvoltage.text = This. Voltage.tostring (); -              This. Lblmessage.text = ( This. voltage==0)?"device no charging function" -: ( This. Voltage = = Max)?"Instant Full"  -:"in charge"; -             } in         } -  to}
Mobile.aspx.cs1 usingSystem;2 [Serializable]3  Public classMinicharger {4     protectedIusb USB {Get;Set; }5     protected Const decimalVoltage =5.0m;6      PublicMinicharger (Iusb pelement) {7          This. USB =pelement;8          This. Usb.connecting + =element_connecting;9         }Ten  One     voidElement_connecting (Objectsender, EventArgs e) { A          This. Usb.voltage =Voltage; -         } -}
MiniCharger.cs
I'm just writing a skeleton, interested friends can implement several different types of USB devices,
And can try to extend the functions of the USB interface, such as the ability to add copy data to the phone,
See the different effects of connecting your laptop and charger
WebForm version demo, analog phone USB interface charging

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

Sales Support

1 on 1 presale consultation

Chat Contact Sales
After-Sales Support

24/7 Technical Support 6 Free Tickets per Quarter Faster Response

Open a Ticket
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

Learn More