Data Binding"
From Documentation
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{{ZKComponentReferencePageHeader}} | {{ZKComponentReferencePageHeader}} | ||
− | Data binding synchronizes data between View and ViewModel according to component definition's annotation. The annotation specifies when to save (or load) which attribute, how to convert, validate and render the data. It can be found in <tt> metainfo\zk\lang-addon.xml </tt> of zkbind.jar. Please refer to [[ZK Client-side Reference/Language Definition]] about how to configure language definition and its addon. | + | Data binding synchronizes data between View and ViewModel according to component definition's annotation. The annotation specifies when to save (or load) which attribute, how to convert, validate and render the data. It can be found in <tt> metainfo\zk\lang-addon.xml </tt> of zkbind.jar. Please refer to [[ZK Client-side Reference/Language Definition]] about how to configure language definition and its addon. If you want data binding can works on your newly-created component, you should define its own annotations. |
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! <center>Attribute Name</center> !! <center>Description</center> | ! <center>Attribute Name</center> !! <center>Description</center> | ||
|- | |- | ||
− | | ACCESS || Access privilege. The value can be "both", "save", "load"(default value); default value is used if not specify. | + | | ACCESS || Access privilege. The value can be "both", "save", or "load"('''default value'''); default value is used if not specify. |
|- | |- | ||
| CONVERTER || System converter for special properties. e.g. SelectedItem in listbox. see <javadoc> org.zkoss.bind.converter.sys.ListboxSelectedItemConverter </javadoc> | | CONVERTER || System converter for special properties. e.g. SelectedItem in listbox. see <javadoc> org.zkoss.bind.converter.sys.ListboxSelectedItemConverter </javadoc> | ||
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| VALIDATOR || System validator for special properties. | | VALIDATOR || System validator for special properties. | ||
|- | |- | ||
− | | SAVE_EVENT || Save trigger event. It | + | | SAVE_EVENT || Save trigger event. It takes effect only when ACCESS attribute is "both" or "save". |
|- | |- | ||
− | | LOAD_EVENT|| | + | | LOAD_EVENT|| Load trigger event; It takes effect only when ACCESS attribute is "both" or "load". |
|- | |- | ||
− | | LOAD_REPLACEMENT|| | + | | LOAD_REPLACEMENT|| |
|- | |- | ||
− | | LOAD_TYPE|| | + | | LOAD_TYPE|| |
|- | |- | ||
− | | SAVE_REPLACEMENT|| | + | | SAVE_REPLACEMENT|| |
|- | |- | ||
− | | RENDERER|| | + | | RENDERER|| |
|- | |- | ||
|} | |} | ||
+ | |||
+ | <source lang="xml"> | ||
+ | |||
+ | <component> | ||
+ | <component-name>textbox</component-name> | ||
+ | <extends>textbox</extends> | ||
+ | <annotation> | ||
+ | <annotation-name>ZKBIND</annotation-name> | ||
+ | <property-name>value</property-name> | ||
+ | <attribute> | ||
+ | <attribute-name>ACCESS</attribute-name> | ||
+ | <attribute-value>both</attribute-value> | ||
+ | </attribute> | ||
+ | <attribute> | ||
+ | <attribute-name>SAVE_EVENT</attribute-name> | ||
+ | <attribute-value>onChange</attribute-value> | ||
+ | </attribute> | ||
+ | <attribute> | ||
+ | <attribute-name>LOAD_REPLACEMENT</attribute-name> | ||
+ | <attribute-value>rawValue</attribute-value> | ||
+ | </attribute> | ||
+ | <attribute> | ||
+ | <attribute-name>LOAD_TYPE</attribute-name> | ||
+ | <attribute-value>java.lang.String</attribute-value> | ||
+ | </attribute> | ||
+ | </annotation> | ||
+ | </component> | ||
+ | |||
+ | </source> | ||
Revision as of 03:47, 9 February 2012
Data binding synchronizes data between View and ViewModel according to component definition's annotation. The annotation specifies when to save (or load) which attribute, how to convert, validate and render the data. It can be found in metainfo\zk\lang-addon.xml of zkbind.jar. Please refer to ZK Client-side Reference/Language Definition about how to configure language definition and its addon. If you want data binding can works on your newly-created component, you should define its own annotations.
ZKBIND zkbind system's annotation name
ACCESS | Access privilege. The value can be "both", "save", or "load"(default value); default value is used if not specify. |
CONVERTER | System converter for special properties. e.g. SelectedItem in listbox. see ListboxSelectedItemConverter |
VALIDATOR | System validator for special properties. |
SAVE_EVENT | Save trigger event. It takes effect only when ACCESS attribute is "both" or "save". |
LOAD_EVENT | Load trigger event; It takes effect only when ACCESS attribute is "both" or "load". |
LOAD_REPLACEMENT | |
LOAD_TYPE | |
SAVE_REPLACEMENT | |
RENDERER |
<component>
<component-name>textbox</component-name>
<extends>textbox</extends>
<annotation>
<annotation-name>ZKBIND</annotation-name>
<property-name>value</property-name>
<attribute>
<attribute-name>ACCESS</attribute-name>
<attribute-value>both</attribute-value>
</attribute>
<attribute>
<attribute-name>SAVE_EVENT</attribute-name>
<attribute-value>onChange</attribute-value>
</attribute>
<attribute>
<attribute-name>LOAD_REPLACEMENT</attribute-name>
<attribute-value>rawValue</attribute-value>
</attribute>
<attribute>
<attribute-name>LOAD_TYPE</attribute-name>
<attribute-value>java.lang.String</attribute-value>
</attribute>
</annotation>
</component>
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