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How to enable/disable buttong based on session variable
Alka ravi
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Posts: 7
posted 12 years ago
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<html> <head> </head> <body> <script language="JavaScript"> <!-- function check_extension(filename, uploadButton) { var validFilesTypes = ["xlsx","xls"]; var submitButton = document.getElementById(uploadButton); var ext = filename.substring(filename.lastIndexOf(".") + 1, filename.length).toLowerCase(); for (var i = 0; i < validFilesTypes.length; i++) { if (ext==validFilesTypes[i]) { submitButton.disabled = false; return true; } } alert("Invalid filename, please select another file"); submitButton.disabled = true; } --> </script> if (Session["url"] != null) { ImportButton.disabled = false; var filename = Session["url"]; Session.Contents.Remove(url) } else { ImportButton.disabled = true; } <form name="form1"> Please choose a file. <input type="file" name="uploadbox" size="35" onChange='check_extension(this.value, "UploadButton")'> <br> <br> <input type="submit" id="UploadButton" value="Upload" disabled="disabled"/> <input type="submit" id="ImportButton" value="Import" disabled="disabled"/> <input type="submit" id="CloseButton" value="Close" onClick='window.close()'/> </form> </body> </html>
Above is just a sample code in html. i want to enable/disable button based on session variable URL. Also, is the clearing logic for session variable is correct?
Bear Bibeault
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posted 12 years ago
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JavaScript has no access to the server-side session. Where did you find this API that you are using?
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