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$. Ajax method (passing JSON data)

Source: Internet
Author: User
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Front-end

  1. <! Doctype HTML public "-// W3C // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  2. <HTML xmlns = "http://www.w3.org/1999/xhtml">
  3. <Head>
  4. <Title> No title page </title>
  5. <Style type = "text/CSS">
  6. . Show {display: block ;}
  7. . Hide {display: none ;}
  8. </Style>
  9. <SCRIPT type = "text/JavaScript" src = "jquery/jquery-1.2.6.js"> </SCRIPT>
  10. <SCRIPT type = "text/JavaScript">
  12. // This method encapsulates the Ajax Method for convenient calling.
  13. Function myajax (){
  14. // Var OBJ = jsondata ();
  15. $. Ajax ({
  16. Type: 'post ',
  17. URL: 'ajax. aspx ',
  18. Data: jsondata (), // you can add a function name directly.
  19. Datatype: 'json ',
  20. Beforesend: beforecall,
  21. Success: callback
  22. });
  23. }
  24. // Encapsulate JSON data for clear code
  25. Function jsondata (){
  26. VaR jsonstr = "({";
  27. Jsonstr + = "/" name /":";
  28. Jsonstr + = "/" tree /"";
  29. Jsonstr + = ",";
  30. Jsonstr + = "/" ID /":";
  31. Jsonstr ++ = "/" 123 /"";
  32. Jsonstr + = "})";
  33. Return eval (jsonstr); // The key lies in conversion.
  34. }
  35. // Method before call, failed
  36. Function beforecall (){
  37. $ ('# Wait'). addclass ("show"). append ('calling ...');
  38. // Alert (''); // test whether to call
  39. }
  40. // Callback function
  41. Function callback (data ){
  42. $ ('# Response'). append (data. Name + data. ID );
  43. Certificate ('{wait'}.css ("display", "NONE ");
  44. }
  45. // Onload () event
  46. $ (Function (){
  47. $ ('# Confirm'). Click (myajax );
  48. })
  49. </SCRIPT>
  50. </Head>
  51. <Body>
  52. <Div id = "Confirm"> click </div>
  53. <Div id = "response"> receive background data </div>
  54. <Div id = "wait" class = "hide"> Hello </div>
  55. </Body>
  56. </Html>

Background

  1. Protected void page_load (Object sender, eventargs E)
  2. {
  3. Hashtable ht = new hashtable ();
  5. String name = request. Params ["name"]. tostring ();
  6. String birth = request. Params ["Birthday"]. tostring ();
  7. If (! String. isnullorempty (name )&&! String. isnullorempty (birth ))
  8. {
  9. // Response. contenttype = "application/JSON ";
  10. // Response. Write (crearejson ("this is OK! ", 1, name, birth ));
  11. Ht. Add ("info", "succeeded ");
  12. Ht. Add ("sta", "status ");
  13. Ht. Add ("name", name );
  14. Ht. Add ("birth", birth );
  15. Response. Write (createjsonparams (HT ));
  16. }
  17. Response. End ();
  18. }
  19. Private string createjsonparams (hashtable items)
  20. {
  21. String returnstr = "";
  22. Foreach (dictionaryentry item in items)
  23. {
  24. Returnstr + = "/" "+ item. Key. tostring () +"/":/" "+ item. value. tostring () + "/",";
  25. }
  26. Return "{" + returnstr. substring (0, returnstr. Length-1) + "}";
  27. }

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Related Keywords:
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