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Hercf

Apr 5th, 2008 6:10 pm

Automate undisabled a “submit button”?

Help!
Hi, everbody!
I have this problem:
There is a “textbox” and a “submit” button.
“Submit button” is disabled until something is written within “text box”. I am not able to do this switch. Could anybody help me?
Here you are the code:

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>Untitled Document</title>

</head>



<body>

<cfform name="form1" id="form1" method="post" action="">

<cfinput type="text" name="Text" id="Text">

<cfinput type="submit" name="submit" disabled="disabled" id="submit" value="Submit">

</cfform>

</body>

</html>

Thank you!

cmhampton

Apr 10th, 2008 5:00 pm

Re: Automate undisabled a “submit button”?

You need to use a javascript function for this:

function ChangeButtonStatus()

{

    if (document.getElementById("Text").value.length > 0)

    {

      document.getElementById("submit").disabled = false;

    }

    else

    {

      document.getElementById("submit").disabled = true;

    }

}

Then in your form, add an OnBlur event to the textbox:

  <cfinput type="text" name="Text" id="Text" OnBlur="ChangeButtonStatus()">

jamba

Apr 30th, 2008 12:13 pm

Re: Automate undisabled a “submit button”?

cmhamton has provided the solution - but just to expand:
So as to open the function to any form and any form objects:

function toggleObj(frmFld,frmBtn) 

{

//frmFld = the Form Field to check for value

//frmBtn = the Form Button to disable/enable



if(frmFld.value.length>0)

{

frmBtn.disabled=false;

}

else

{

frmBtn.disabled=true;

}

}

sorry - haven't actually tested this...

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