C # interaction between the webbrowser control and JS

Knowledge:

[C-sharp]
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1. [System. runtime. interopservices. comvisibleattribute (True)]
   
2. This is to set this class to com accessible
4. URL property: the webpage path displayed by the webbrowser Control
6. Objectforscripting property: This object can be accessed by the script code contained in the webpage displayed in the webbrowser control.
7. Javascript calls the C # public method through window. External. This is the public method contained in the instance of the class set by the objectforscripting attribute.
   
10. // Web page path displayed by the webbrowser Control
    
11. Webbrowser1.navigate (NewUri (system. environment. currentdirectory + @ "/xxx.html ",
    Urikind. relativeorabsolute ));
12. // Set the current class to be accessed by a script
    
13. Webbrowser1.objectforscripting =This;
    

[System. runtime. interopservices. comvisibleattribute (true)] <br/> This is to set this class to com accessible </P> <p> URL attribute: the webpage path displayed by the webbrowser Control </P> <p> objectforscripting attribute: This object can be accessed by the script code contained in the webpage displayed in the webbrowser control. <br/> JavaScript uses window. external calls the C # public method. This is the public method contained in the instance of the class set by the objectforscripting attribute. </P> <p> // web page path displayed by the webbrowser Control <br/> webbrowser1.navigate (New uri (system. environment. currentdirectory + @ "/xxx.html", urikind. relativeorabsolute); <br/> // set the current class to be accessed by a script <br/> webbrowser1.objectforscripting = This; <br/>

. CS

[C-sharp]
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1. UsingSystem;
   
2. UsingSystem. Collections. Generic;
   
3. UsingSystem. LINQ;
   
4. UsingSystem. text;
   
5. UsingSystem. windows;
   
6. UsingSystem. Windows. controls;
   
7. UsingSystem. Windows. Data;
   
8. UsingSystem. Windows. documents;
   
9. UsingSystem. Windows. input;
   
10. UsingSystem. Windows. Media;
    
11. UsingSystem. Windows. Media. imaging;
    
12. UsingSystem. Windows. Navigation;
    
13. UsingSystem. Windows. shapes;
    
14. UsingSystem. Web;
    
15. UsingSystem. Security. permissions;
    
16. NamespaceWpfapplication1
    
17. {
18. /// <Summary>
    
19. /// Interaction logic for window1.xaml
    
20. /// </Summary>
    
21. PublicPartial
    ClassWindow1: Window
    
22. {
23. PublicWindow1 ()
    
24. {
25. Initializecomponent ();
26. Basic DS =NewBasic ();
    
27. Webbrowser1.navigate (NewUri (system. environment. currentdirectory + @ "/aaa.html ",
    Urikind. relativeorabsolute); // obtain the calendar file in the root directory
    
28. Webbrowser1.objectforscripting = Ds; // This object can be accessed by the script code contained in the webpage displayed in the webbrowser control.
    
29. }
30. Private
    VoidButton_click (ObjectSender, routedeventargs E)
    
31. {
32. Textbox1.text = dosomething. Name;
33. }
35. }
36. [System. runtime. interopservices. comvisibleattribute (True)] // Set this class to com accessible
    
37. Public
    ClassBasic
    
38. {
39. Public
    Static
    StringName;
    
40. Public
    StringName
    
41. {
42. Get{
    ReturnName ;}
    
43. Set{Name = value ;}
    
44. }
45. Public
    VoidClickevent (StringStr)
    
46. {
47. This. Name = STR;
    
48. }
49. }
50. }

Using system; <br/> using system. collections. generic; <br/> using system. LINQ; <br/> using system. text; <br/> using system. windows; <br/> using system. windows. controls; <br/> using system. windows. data; <br/> using system. windows. documents; <br/> using system. windows. input; <br/> using system. windows. media; <br/> using system. windows. media. imaging; <br/> using system. windows. navigation; <br/> using system. windows. shapes; <br/> using system. web; <br/> using system. security. permissions; <br/> namespace wpfapplication1 <br/> {<br/> /// <summary> <br/> // interaction logic for window1.xaml <br/> // </Summary> <br/> Public partial class window1: window <br/>{< br/> Public window1 () <br/>{< br/> initializecomponent (); <br/> basic DS = new basic (); <br/> webbrowser1.navigate (New uri (system. environment. currentdirectory + @ "/aaa.html", urikind. relativeorabsolute); // obtain the calendar file of the root directory <br/> webbrowser1.objectforscripting = Ds; // This object can be accessed by the script code contained in the webpage displayed in the webbrowser Control <br/>}< br/> private void button_click (Object sender, routedeventargs E) <br/>{< br/> textbox1.text = dosomething. name; <br/>}</P> <p >}< br/> [system. runtime. interopservices. comvisibleattribute (true)] // set this class to com accessible <br/> public class basic <br/>{< br/> Public static string name; <br/> Public string name <br/>{< br/> get {return name ;}< br/> set {name = value ;} <br/>}< br/> Public void clickevent (string Str) <br/>{< br/> This. name = STR; <br/>}< br/>

Html

[C-sharp]
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1. <HTML>
2. <Head>
3. <MCE: script language = "JavaScript" type = "text/JavaScript"> <! --
   
4. Function selec ()
5. {
6. VaR divv = Document. getelementbyid ('div2'). innertext;
   
7. Window. External. clickevent (divv );
8. }
9. // --> </MCE: SCRIPT>
   
10. </Head>
11. <Body>
12. <Form>
13. <Div id = "div1" onclick = "selec ();"> 000000000000 </div>
    
14. <Div id = "div2"> 111111 </div>
    
15. </Form>
16. </Body>
17. </Html>

<HTML> <br/> <pead> <br/> <MCE: script language = "JavaScript" type = "text/JavaScript"> <! -- <Br/> function selec () <br/> {<br/> var divv = document. getelementbyid ('div2 '). innertext; <br/> window. external. clickevent (divv); <br/>}< br/> // --> </MCE: SCRIPT> <br/> </pead> <br/> <body> <br/> <form> <br/> <Div id = "div1" onclick = "selec (); "> 000000000000 </div> <br/> <Div id =" div2 "> 111111 </div> <br/> </form> <br/> </body> <br/> </ptml>

If you need to click the button during running and then pass the value to the page for display, use the following method to pass the value

This. Webbrowser1.invokescript ("functions in JS", "values to be passed ");