Bind a empty textbox value

asked 2014-07-14 04:50:11 +0800

JustinFrost gravatar image JustinFrost
139 1 6

I have a textbox with a 'no empty' constraint. My problem is that the value of this text box is not saving to the view model, is there anyway around this ?

<textbox constraint="no empty" onOK="@command('doLogin')" value="@load(vm.userName) @save(vm.userName, before='doLogin')" tabindex="1"/>
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This looks correct, can you make a simple fiddle to demonstrate the issue (when putting link plz tell zk version)?

chillworld ( 2014-07-14 06:53:43 +0800 )edit

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answered 2014-07-14 13:56:28 +0800

JustinFrost gravatar image JustinFrost
139 1 6

Hi, sorry I should clarify that the value is not saved to the viewmodel when it is empty. I need to pass through blank values and also validate them on the client using the "no empty" constraint. This is because I have a login button that does further validation.

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answered 2014-07-14 19:59:17 +0800

chillworld gravatar image chillworld flag of Belgium
5322 4 9

Hi Justin,

This is normal cause the constraint="no empty" does already client side validation.
If you only want to have server side validation, you can check in your command for null and throw a WrongValueException with as argument the tekst you want to show.
Then you can remove the constraint in the textbox.

Greetz chill.

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Asked: 2014-07-14 04:50:11 +0800

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Last updated: Jul 14 '14

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