@save"

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=Syntax=
 
=Syntax=
  
<tt> @save(</tt> ''[EL-expression], [conditionKeyword]=[EvaluateOnce EL-expression] '' <tt>) </tt>
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<code>@save(</code> ''[EL-expression], [conditionKeyword]=[EvaluateOnce EL-expression] '' <code>)</code>
  
 
= Description =
 
= Description =
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'''Purpose:''' Restrict binder to save data to ViewModel only, no loading.
 
'''Purpose:''' Restrict binder to save data to ViewModel only, no loading.
  
You usually use this syntax when you want to save and load data in different conditions, you should write both <tt> @save </tt> and <tt> @load </tt> in an attribute. You have to use it in form binding to save upon a command.
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You usually use this syntax when you want to save and load data in different conditions, you should write both <code>@save</code> and <code>@load</code> in an attribute. You have to use it in form binding to save upon a command.
  
 
; ''[conditionKeyword]=[EvaluateOnce EL-expression]''
 
; ''[conditionKeyword]=[EvaluateOnce EL-expression]''
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;''[EvaluateOnce EL-expression]''
 
;''[EvaluateOnce EL-expression]''
 
: The evaluation result must be one or more command name.
 
: The evaluation result must be one or more command name.
: Command name must correspond to the name specified in Java annotation <tt> @Command </tt> in a ViewModel.
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: Command name must correspond to the name specified in Java annotation <code>@Command</code> in a ViewModel.
  
 
= Example =
 
= Example =
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=Version History=
 
=Version History=
{{LastUpdated}}
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{| border='1px' | width="100%"
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{| class='wikitable' | width="100%"
 
! Version !! Date !! Content
 
! Version !! Date !! Content
 
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Latest revision as of 07:35, 8 July 2022

Stop.png This article is out of date, please refer to zk-mvvm-book/8.0/syntax/data_binding/save for more up to date information.


Syntax

@save( [EL-expression], [conditionKeyword]=[EvaluateOnce EL-expression] )

Description

Target Attribute: any save-allowed attributes (except viewModel, validationMessages)

Purpose: Restrict binder to save data to ViewModel only, no loading.

You usually use this syntax when you want to save and load data in different conditions, you should write both @save and @load in an attribute. You have to use it in form binding to save upon a command.

[conditionKeyword]=[EvaluateOnce EL-expression]
This expression is optional unless you want to save or load upon a command.
[conditionKeyword]
It could be one of [ before | after ]
[EvaluateOnce EL-expression]
The evaluation result must be one or more command name.
Command name must correspond to the name specified in Java annotation @Command in a ViewModel.

Example

Basic usage

<textbox value="@load(vm.person.name) @save(vm.person.name, before='save')"/>

<textbox value="@load(vm.person.name) @save(vm.person.name, before={'save', 'update'})"/>


Saving and loading form attribute'

<textbox value="@save(vm.number) @load(vm.number, after='cmd')" />



Version History

Version Date Content
6.0.0 February 2012 The MVVM was introduced.




Last Update : 2022/07/08

Copyright © Potix Corporation. This article is licensed under GNU Free Documentation License.