finding my textbox value

[dembyg]

I wonder if someone could help with my problem. I wrote a javascript function CheckIfLoginExpired.. This function is suppose to return the value of a text field called loginName however there seems to be something wrong with my function which ive used in an older version of asp.net


function CheckIfLoginExpired()
{
var logtext = LoginName.value;
if ((logtext == null) || (logtext == ""))
{
alert("Login Expired"+logtext) ;
}
}

thanks for any help you can provide

 

[monksnake]

So you want to alert the value of logtext when it's equal to null or equal to the null string?

If it is supposed to return a value, then you need a return statement in the function.

Also, make sure you have a text field in your HTML that has name="LoginName".

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[dembyg]

Thanks for your response. The text field is in my html which has the name LoginName. however when i try running the code i get an error that 'LoginName' is undefined.

 

[ggriffit]

its probably because it can't get the field, try something like :

var logtext = document.getElementById("LoginName").value;

if that does not work, please post the HTML source of the output page from the .Net.

Greg Griffiths
Livelink Certified Developer & ECM Global Star Champion 2005 & 2006

http://www.greggriffiths.org/livelink/

 

[BillyRayPreachersSon]

You need to ensure when you view the [!]client-side source[/!] (Which is not the same as the ASP source) that the field has a name of "LoginName" if you want to refer to it by name:

alert(document.forms['TheRealHTMLFormName'].elements['LoginName'].value);

or an ID (again, [!]client-side[/!], not in the ASP source) of "LoginName" if you want to go down the route suggested by Greg.

Hope this helps,
Dan



Coedit Limited - Delivering standards compliant, accessible web solutions

[tt]Dan's Page [blue]@[/blue] Code Couch

http://www.codecouch.com/dan/

[/tt]

 

[dembyg]

Thank you ggriffit your suggestion worked