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on blur form validation

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Dec 18.2007

Hi i have a onblur within a input textbox, when the user presses enter i need to validate what has been entered in to the textbox.

i have tried the code below, the alert pops up fine but then my form still submits, how can i stop the form submitting?

[code]
<script language=”javascript”>
<!–
function checkQty(thisform, entry)
{
if (thisform.value < 1)
{
thisform.value = “0”
alert (“This is a Javascript Alert”)
return false

}
if (thisform.value > entry)
{
alert (“This is a Javascript Alert”)
return false

}
}

–>
</script>

<input type=”text” name=”QtyTextBox<%=i%>” size=”3″ onblur=”checkQty(this, <%=strLeft%>)” maxlength=”5″ value=”0″/>
[/code]

to post a comment
JavaScript

3 Comments(s) ↴

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@Totte_chDec 18.2007 — Try this:
[CODE]<form onSubmit="return checkQty(document.forms['your_form'].elements['QtyTextBox'], 5);">
<input type=text name="QtyTextBox" size=3 maxlength=5 value="0">
</form>[/CODE]
I think this would like to work fine...
Copy linkTweet thisAlerts:
@macca242424authorDec 18.2007 — Hi Thanks for that,

but i need to have the onblur on the textbox or

what i need is

when a user enters a value

the use can either hot the tab key or the enter key and then checks the value and submits the form if the value is correct
Copy linkTweet thisAlerts:
@Totte_chDec 18.2007 — Try to add this to the input-element:
[CODE]<form onSubmit="return checkQty(document.forms['your_form'].elements['QtyTextBox'], 5);" name="your_form">
<input type=text name="QtyTextBox" size=3 maxlength=5 value="0" [B]onBlur="document.forms['your_form'].submit();"[/B]>
</form>[/CODE]
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