(r1) ColumnAttribute < WebXEO

WebXEO Web>XeoPrimerXeoXwc>GridPanel>ColumnAttribute (revision 1) (raw view)~~EditAttach~~
-- Main.PedroRio - 16 May 2010
---+ ColumnAttribute Component

The ColumnAttribute component is used as child of a GridPanel (or BridgePanel) component in order to select which columns should appear. By default GridPanel instances will show a selection of the attributes of the objects used in the data source. With the ColumnAttribute component the exact number (and which) of attributes can be selected.

*XML Definition:*
<verbatim><xvw:columnAttribute 
   dataField='name' 
   ....

   label='Nome'
 ></verbatim><pre><verbatim></xvw:columnAttribute></verbatim>
</pre>
---+++++ Properties

List of Properties of the ColumnAttribute component:
| *Property* | *Description* | *Requirement* | *Default Value* | *Type* | *Note* |
| dataField | The attribute from the object to be shown, since ColumnAttribute is a child of Bridge or GridPanel one the attributes from the list of objects they contain can be selected into a column | Required | | String | |
| label | The label to show in the table header column | Optional | | String | |
| width | The width of this column (in pixels) | Optional | | Number | |
| hidden | If the column is hidden or not | Optional | False | Boolean | |
| resizable | If the column size can be changed | Optional | True | Boolean | |
| sortable | If the rows can be sorted by the current column | Optional | True | Boolean | |
| renderder | An implementation of the netgest.bo.xwc.components.classic.GridColumnRenderer interface which allows the column attribute to rendered in a custom way (must | Optional | | GridColumnRenderer | Must be binded to a bean renderer = '#{viewBean.myRenderer}' |

*Property - Renderer:*

The renderer property allows the developer to custom render a given column attribute. If one would want to display the value of the column in italic the following should be done.

*XML Definition*
<verbatim><xvw:columnAttribute dataField='myFields' renderer='#{viewBean.myRenderer}'></verbatim>

*Java Bean Code*
<verbatim>public GridColumnRenderer getMyRenderer() {    
             return new GridColumnRenderer() {
                 public String render( GridPanel grid, DataRecordConnector record, DataFieldConnector field ) {
                     String oValue = field.getValue();
                     return "<i>" + oValue + "</i>";
                 } 
              }
}</verbatim>

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Topic revision: r1 - 2010-05-16 - PedroRio
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