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Form Validation

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aspmonster

IS-IT--Management
Dec 11, 2003
25
US
How do I validate a drop down option box.
Right now..I use this for all my fields..but thats not correct. this one checks for blank fields...
Help....

if (document.frmAdd.Department.value == "") {
alert("You must enter Employee's Department or Team Name!");
return false;

}
 
Same way as you just did it.

Each item in the dropdown has a value. When one is selected, the value returned in you expression above will be something other that "". If you have specified a default value/text in the dropdown i.e. [Select a state] which has a value of 0, then you would specify:

if (document.[yourform].[yourfield].value == "0") {
alert("You must select something");
return false;

}

Dropdowns with multiple selections are a little more complex.
 
Thanks ppepin.
I tried with my code and it worked..
But I would go with urs as it looks more professional (according to my requirement).
Thanks.
 
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