VirtualMV/JavaScript/Forms/Example
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< VirtualMV | JavaScript
Overview
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By the end of this page you will be able to:
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Summary (js2_06)
<!doctype html public "-//W3C//DTD HTML 4.01//EN"> <html> <head> <title>JavaScript forms - summary</title> <script type="text/javascript"> <!-- function fnCalcVal() { vntNumber = eval(document.frmCalc.txtNumber.value); objFormVal = document.frmCalc.cboVal; vntSelectvalue = objFormVal.options[objFormVal.selectedIndex].value; document.frmCalc.txtValue.value = vntSelectvalue; vntResult = vntNumber*vntSelectvalue; document.frmCalc.txtResult.value=vntResult; } //--> </script> </head> <body bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> <form name="frmCalc"> Enter a number:<input type="text" value="0" name="txtNumber" /><br /> Select a value: <select name="cboVal" onChange="fnCalcVal()"> <option value=10>Ten</option> <option value=20>Twenty</option> <option value=30>Thirty</option> </select><br /> Value: <input type="text" value="0" name="txtValue" disabled="disabled" /> Result: <input type="text" value="0" name="txtResult" disabled="disabled" /><br /> </form> </body> </html>
Note: Use of disabled means the text boxes cannot be changed by a user
Example :Click here to run js2_06.
References
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virtualMV | Superquick wiki guide | Please give me some feedback |
VirtualMV/JavaScript/Forms/Example. (2024). In WikiEducator/VirtualMV wiki. Retrieved December 22, 2024, from http:https://wikieducator.org/VirtualMV/JavaScript/Forms/Example (zotero)
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