enable button when text is not empty

[Former Member]

Hi,

I have created a view that has an input field and a "save" button.

The save button is disabled by default, and should become enabled only if some text was written to the input field. As for now, the best I could do is to enable the button after pressing "Enter" from the input field.

I would like to know, if there is a more elegant way, in which the button will be automatically enabled the moment the text is inserted, and disabled if one deletes the text.

Thanks,

Oren.

[Former Member]

Hi ,

Make a boolean variable which will be set to the enabled prpoperty of ui elementt - button.

Your input field UI would also be binded to a context - say XXX,

Place a code in the OnEnter Event of the inputelementUI ,

in that code checkif the lenght of the string entered is greater than 0. in that case simply set the boolean varialble above to true , the button would be enabled

Message was edited by:

Vivek Mishra

Message was edited by:

Vivek Mishra

[Former Member]

Hi,

OK, so instead, I intead to leave the "ok" button enabled, but if pressed, and the the input field is empty - I want to emphasize the input field with a red frame.

Is this possible?

Thanks,

Oren.

[Former Member]

Hi Oren

You can achieve this by creating an item in Message Pool and then using that in your code like

if length()<0 then you can throw raisependingException. code will look like

IWDNodeElement task = node.getElement();
manager = wdComponentAPI.getMessageManager();
IWDAttributeInfo attibute = node.getNodeInfo().getAttribute(XX);

String message = wdComponentAPI.getTextAccessor().getText(IMessageXX.Messagepool_Name);
manager.raiseInvalidContextAttributeException(task, attibute, message, true);
manager.raisePendingException();

Best Regards

Chaitanya.A

[Former Member]

Yes, this is possible.

Open the message editor and create a message with message key as Blank and text as Please enter some value and type can be standard,error or warning.

Now, OnAction of the button wirte this code.

IWDAttributeInfo attr = wdContext.getNodeInfo().getAttribute(<name of the attribute binded to the input field>);

wdComponentAPI.getMessageManager().reportContextAttributeMessage(wdContext.currentContextElement,attr,IMessage<component name>.BLANK,null,true);

Warm Regards,

Murtuza

[Former Member]

Thank you all. Problem is solved.

I would like to reward you for the answers, but for some reason I cannot see the reward pannel... anyone knows why?

[sridhar_k2]

Oren,

Unfortunately web dynpro doesnt support Java Script and it doesnt have any methods for your functionality.

onEnter you have to write to enable. But i dont think it would make sense to use.

Regards,

Sridhar

[Former Member]

Hi Oren,

Their is no Change event or key press event . Unless a round trip is triggered this will not work.

Regards

Ayyapparaj

[Former Member]

Hi,

The answer to your question would be No.

Regards,

Murtuza