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Tips for selecting values from the drop-down list

Source: Internet
Author: User
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Code:
  1. <HTML>
  2. <Head> <title> obtain the value and text of the selected item in the drop-down list </title>
  3. <Body>
  4. <SCRIPT>
  6. // Obtain the text of the selected item in the drop-down list
  7. Function getselectedtext (name ){
  8. VaR OBJ = Document. getelementbyid (name );
  9. For (I = 0; I <obj. length; I ++ ){
  10. If (OBJ [I]. Selected = true ){
  11. Return OBJ [I]. innertext; // the key is to obtain the option text through the innertext attribute of the Option object.
  12. }
  13. }
  14. }
  16. // Obtain the value of the selected item in the drop-down list
  17. Function getselectedvalue (name ){
  18. VaR OBJ = Document. getelementbyid (name );
  19. Return obj. value; // This is simple and can be obtained directly using the Value Attribute of the object.
  20. }
  22. </SCRIPT>
  23. <Select id = "myselect">
  24. <Option value = "Fist"> 1 </option>
  25. <Option value = "second"> 2 </option>
  26. <Option value = "third"> 3 </option>
  27. </SELECT>
  29. <Input type = "button" value = "selected text" onclick = "alert (getselectedtext ('myselect');"/>
  30. <Input type = "button" value = "selected value" onclick = "alert (getselectedvalue ('myselect');"/>
  31. </Body>
  32. </Html>
  33. Get the value of the selected item from the drop-down list in IE6
  34. <SCRIPT>
  35. Function U ()
  36. {
  37. VaR _ select = Document. getelementbyid ("SS ")
  38. VaR JJ = _ select. Options [_ select. selectedindex]. value;
  39. Document. Write (jj );
  40. }
  41. Using this method directly may cause problems.
  42. // Obtain the value of the selected item in the drop-down list
  43. Function getselectedvalue (name ){
  44. VaR OBJ = Document. getelementbyid (name );
  45. Return obj. value; // This is simple and can be obtained directly using the Value Attribute of the object.
  46. }
  48. </SCRIPT>

 

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