How to Create Dynamic Header for <rich:dataTable> in RF4.1

[swastikpadhy84]

Hi,

    I want to populate a <rich:dataTable> whose header should be generated dynamically from the database.

I am using richface 4.1

Can you please suggest.

Regards,

Swastik

[iabughosh]

helle swastik, try this:

<rich:dataTable value="#{myBean.data}"

                       var="row"> 

     <f:facet name="header">

          <h:outputText value="#{myBean.valueFromDB}"/>

     </f:facet>

     <h:column>

          <f:facet name="header">column1</f:facet>

          <h:outputText value="#{row.value}"/>

     </h:column>

     .

     .

     .

</rich:dataTable>

regards.

[swastikpadhy84]

Hi,

     Thanks for your Response. For one element this is true, but can you suggest me, what if I retrive a list from database and put all the values as a header of a data table.

Thanks

Swastik

[iabughosh]

if you have for example List<SomeBean>, then override your SomeBean.toString() method, the output should be like this :

[bean1.toString(),bean2.toString().....]

regards.

[swastikpadhy84]

Hi,

for example I have a LIst having Values "Record1",  "Record2",  "Record3",  "Record4"

I want these values as a Header for my data table. How to iterate the list and get these values as header.

Thanks,

Swastik

[iabughosh]

you don't have to iterate,

<h:outputText value="#{myBean.yourList}"/>

JSF will iterate through yourList for ya, if you have List<String> no more code is required else if you have List<SomeBean> you only override SomeBean.toString() method.

[swastikpadhy84]

I tried this. The List valuses was came as a single header. My requirement is like each value of the list as a separate column header.

[iabughosh]

column header is a bit different than table header, use JSF2 EL expressions to get the value from your list:

<rich:dataTable value="#{yourList}"

                        var="row"> 

     <h:column>

          <f:facet name="header">#{yourBean.fetchHeaderFromList(0)}</f:facet>

     </h:column>

     <h:outputText value="#{row.otherProperty}"/>

     .

     .

     .

</rich:dataTable>

public String fetchHeaderFromList(int index) {

     return yourList.get(index);

}

regards.