Converting form field data to uppercase

Nige · Nov 9, 2003

Is it possible to convert an item of form field data to uppercase using
the toUpperCase() method?

What I'm really asking is, how do I reference the data item?

VK · Nov 9, 2003

document.FormName.FieldName.value =
document.FormName.FieldName.value.toUpperCase();
or
with (document.FormName) {
FieldName.value = FieldName.value.toUpperCase();
/* all the same, just "cooler" looking and shorter*/
}

Raul Carrillo Garrido · Nov 9, 2003

Maybe this script helps you. Has been taken from The Javascript Source.-
http://javascriptsource.com





<BODY>




<center>
<form name="capsform">
<input type="text" name="caps" size=40 value=""
onChange="javascript:this.value=this.value.toUpperCase();">
<br>
<input type="button" value="Ok!">
</form>
</center>

<p><center>
<font face="arial, helvetica" size="-2">Free JavaScripts provided<br>
by <a href="http://javascriptsource.com">The JavaScript Source</a></font>
</center><p>



Metsuke <(^_^)>

Elmo Watson · Nov 12, 2003

This works well for me, but what I'm trying to do is create a function that
does this so I can use the same thing in all form fields and I just can't
get it....
I've tried various forms of what you see below and it never works:
<SCRIPT LANGUAGE="Javascript">

</SCRIPT>

Then, in the input box:
<input name="textbox1" type="text" id="textbox1"
onChange="convcaps(textbox1);">

I keep getting an 'Expected Identifier' error in the main line of the
function - -

What am I doing wrong here?

Thanks.

Lasse Reichstein Nielsen · Nov 12, 2003

Elmo Watson said:
<SCRIPT LANGUAGE="Javascript">

</SCRIPT>

What am I doing wrong here?

Top posting. Please trim your quotes instead of including the entire
message you respond to.

In HTML 4, the type attribute is required on the script tag. The
recommended way to start a script element is:
<script type="text/javascript">

You don't need the <!-- line.

And, the important errors:

1) "this" is a keyword in Javascript, you can't use it as a variable.

2) you have a variable, call it "variableName" since "this" is not
legal. It contains a string with the name of a property of the form.
You then write.
document.form.variableName.value
This finds the property with the name "variableName" in the form, not
the one with name that is in the string that variableName refers to.
To use a variable to look up a property, you must use square brackets:
document.form[variableName].value
<URL:http://jibbering.com/faq/#FAQ4_39>

/L

Thomas 'PointedEars' Lahn · Nov 14, 2003

Lasse said:
1) "this" is a keyword in Javascript, you can't use it as a variable.

More, `this' is a special operator and (therefore) a reserved word.

PointedEars

Richard Cornford · Nov 15, 2003

Thomas 'PointedEars' Lahn said:
More, `this' is a special operator and (therefore) a reserved word.

That would explain why ECMA 262 Section 7.5.2 lists "this" specifically
under the heading "keywords".

Richard.

Thomas 'PointedEars' Lahn · Nov 17, 2003

Richard said:
That would explain why ECMA 262 Section 7.5.2 lists "this" specifically
under the heading "keywords".

-v

PointedEars

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Converting form field data to uppercase

Nige

VK

Raul Carrillo Garrido

Elmo Watson

Lasse Reichstein Nielsen

Thomas 'PointedEars' Lahn

Richard Cornford

Thomas 'PointedEars' Lahn

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