Validating listbox

I want to check that the Listbox has a selected item other the first item (first item is empty space "").

I want to have popup error close to the Listbox similar to Textbox error popup.

The field has manadatory set to true Special List: Value 1: 0 Option 1: - Validation on submit button: Client & Server When the user does not select a value (so - is choosen in the listbox) the form can be submitted. " should have be shown instead and the form should not be submitted.

Note: when select2 is not applied to the list Box (so you get the normal list Box) it works fine.

What's the best way to put validation/constraints on a Listbox which is used in "select" mode (i.e: dropdown list) ?



and saving million$, but still Getting The Job Done. I'm still trying to master validating things like SSNs!

With most browsers, pressing plus, minus or zero while the control key (ctrl) is held down will change the texts size.

internal units of the school): Ravenclaw, Gryffindor, Hufflepuff or Slytherin We'll build a little table, and provide a data entry form which won't allow us to enter an invalid value for the child's house. We'll look at the shortcomings of a List Box, and try an alternative, the Combo Box.

We'll look at its shortcomings, and then go on to a more advanced solution to the problem: the setting up of constraints on the table. It might be tempting to put a validation rule on the postal (Zip) code in a database of addresses.

Many times there are only a limited number of valid entries for a given field in a table you have created. Every US taxpayer has an ID assigned by the government. An individual's SSN always consists of three digits followed by a hyphen followed by two digits followed by a hyphen followed by four digits.

(Enlarge, reduce, restore to default, respectively.) (This is fully explained, and there are more tips, at my Power Browsing page.) Page contents © TK Boyd, Sheepdog Software, 3/06- 10/12.


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