Reset custom component

Hello!
I have an app with some states.
Each state shows a different custom component.
My problem is that if someone types somthing in one of the states then changes state and then comes back the text will still be there.
Is there a way to reintitialize the custom component on each state chage or do I have to create functions to reset everything myself?
Thank you!

Ok, thank you.
Were they only Form fileds it would have been nice and easy.
I have some AMF calls etc.
I could probably remove the component with removeChild and add it when it's accessed again I guess, but that doesn't seem too elegant.

Similar Messages

Dynamic datatable in custom component

hi all,
i'm working on a custom jsf component and this component will create a datatable dynamically. (you can see component details from http://www.jroller.com/page/hasant?entry=creating_dynamic_datatable_inside_of AND http://www.jroller.com/page/hasant?entry=jsf_question_for_community_what)
the question is; when i want to add a selection column(dynamically), how can i handle its selected values?
i mean, if i have created this datatable in a page with designer, i would bind an Integer[] to that selection column's checkboxes. But i have to add this selection column dynamically from my component. So, how can i GET and SET the selection columns values. Since this is a custom component, there is no backing bean for value binding to this component.
when i resolve the request param string to get the selected rows, it's working(=i can see the selected rows somehow..) but, i can not set that values again while encoding that column after a submit.
here is my row selection column encoding code;
     private void addSelectionColumnToTable(FacesContext context, UIData table) {
          UIColumn column = new UIColumn();
          HtmlInputRowSelect rowSelect = new HtmlInputRowSelect();
          rowSelect.setId("rowSelect1");
          rowSelect.setStyleClass("inputRowSelect");
          rowSelect.setValue(m_selectedRows);
          column.getChildren().add(rowSelect);
          table.getChildren().add(column);
     }In the code above, rowSelect.setValue(m_selectedRows); part not effecting anyhing. m_selectedRows variable includes row numbers(in an Integer array) that i want to see as selected.
any solution/recommendation?

Well if you are still interested in using a text component
instead of a Button the way you would go about this is using
textWidth. Here's how I've done it before using a text / label
whatever you want that shows text.
// => Set our text we got from database
myText.text = "This is the text I got from the DB";
// => Validate it so that way we make sure we get right
numbers
myText.validateNow();
// => Find out how wide our text really is.
var textWidth:Number = myText.textWidth
// => Reset the width of our text component and add 20 for
a little buffer
myText.width = textWidth + 20;
Now my suggestion is if your going to be dynamically creating
these on the fly from a database call you throw it into a method /
class and have that do all the work for you so all you have to do
is pass the text to it and it resizes itself based on the example
above.

Revert custom component to default state?

I am building a website which has multiple pages, and within those pages are image galleries. I have used custom components for the galleries so i dont end up with an unmanagable amount of main pages. (15 pages containg galleries of up to 7 images) The problem is when you navigate away from a page and then back to that page the custom component remains in the state it was left in, obviously you would want an image gallery to always revert to the first image. (this is also the case with flvs) Is it possible to make a component revert to a particular state? I dont realy have to skills to do it in builder or anything unless it was very simple.
thanks!

Hi lucky_p,
There is a great post on the FlashCats blog that explains how to get components to reset after a state change; I think this may answer your question:
How do I get Flash Catalyst components to reset after changing states?
Hope that helps.
Regards,
Kim

Problem with inputText in my custom component

Hi, I have a custom dataTable component that I'm trying to get to work. It has to be a custom component because dataTable doesn't support rowspan, colspan, multi line headers, and a rendered attribute for rows. The problem is, that when I wrap the column tag inside my row tag then the method for the inputText tag never gets called in the UPDATE_MODEL_VALUES phase.
I'm starting to think that JSF doesn't support 2 levels of tags between the inputText and dataTable. I'm hoping that someone can tell me what I have wrong with my components.
Here is the JSP snippet.
<cjsf:rptTable>
     <cjsf:data id="dataTable1" value="#{allAuthUser.tableRows}" var="myTableRow1">
          <cjsf:row>
               <cjsf:col>
                    <h:inputText id="tableTestFld" value="#{myTableRow1.testFld}" size="5" maxlength="5"/>
               </cjsf:col>
          </cjsf:row>
     </cjsf:data>
</cjsf:rptTable>Here is what it renders. It looks to me like everything renders fine. So I'm guessing that there is something in a component that is causing JSF during the life cycle to not be able to process correctly.
<table>
     <tbody>
          <tr>
               <td><input id="tblmaintForm:body:dataTable1_0:tableTestFld" name="tblmaintForm:body:dataTable1_0:tableTestFld" type="text" value="" maxlength="5" size="5"/></td>
          </tr>
          <tr>
               <td><input id="tblmaintForm:body:dataTable1_1:tableTestFld" name="tblmaintForm:body:dataTable1_1:tableTestFld" type="text" value="" maxlength="5" size="5"/></td>
          </tr>
          <tr>
               <td><input id="tblmaintForm:body:dataTable1_2:tableTestFld" name="tblmaintForm:body:dataTable1_2:tableTestFld" type="text" value="" maxlength="5" size="5"/></td>
          </tr>
     </tbody>
</table>Note: If I leave off the row tag it renders the same way except of course the <tr> and </tr> tags are missing. If I do this, then the backing method for the inputText tag is called and everything works fine. Why doesn't it work with the row tag in place?
Here are the components:
public class UIRptTable extends UIComponentBase {
     public UIRptTable() {
          setRendererType("tblmaint.rptTableRenderer");
     public String getFamily() {
          return "javax.faces.Output";
public class UIRptTableData extends HtmlDataTable {
     public UIRptTableData() {
          setRendererType("tblmaint.rptTableDataRenderer");
     public String getFamily() {
          return "javax.faces.Data";
public class UIRptTableRow extends UIOutput {
     public UIRptTableRow() {
          setRendererType("tblmaint.rptTableRowRenderer");
     public String getFamily() {
          return "javax.faces.Output";
public class UIRptTableCol extends UIColumn {
     public UIRptTableCol() {
          setRendererType("tblmaint.rptTableColRenderer");
     public String getFamily() {
          return "javax.faces.Column";
}Here is part of the faces-config file in case you need it.

<component>
     <component-type>tblmaint.rptTable</component-type>
     <component-class>com.monsanto.ag_it.fieldops.aim.tblmaint.component.UIRptTable</component-class>
</component>
<component>
     <component-type>tblmaint.rptTableData</component-type>
     <component-class>com.monsanto.ag_it.fieldops.aim.tblmaint.component.UIRptTableData</component-class>
</component>
<component>
     <component-type>tblmaint.rptTableRow</component-type>
     <component-class>com.monsanto.ag_it.fieldops.aim.tblmaint.component.UIRptTableRow</component-class>
</component>
<component>
     <component-type>tblmaint.rptTableCol</component-type>
     <component-class>com.monsanto.ag_it.fieldops.aim.tblmaint.component.UIRptTableCol</component-class>
</component>

<render-kit>
     <renderer>
          <component-family>javax.faces.Output</component-family>
          <renderer-type>tblmaint.rptTableRenderer</renderer-type>
          <renderer-class>com.monsanto.ag_it.fieldops.aim.tblmaint.renderer.RptTableRenderer</renderer-class>
     </renderer>
</render-kit>
<render-kit>
     <renderer>
          <component-family>javax.faces.Data</component-family>
          <renderer-type>tblmaint.rptTableDataRenderer</renderer-type>
          <renderer-class>com.monsanto.ag_it.fieldops.aim.tblmaint.renderer.RptTableDataRenderer</renderer-class>
     </renderer>
</render-kit>
<render-kit>
     <renderer>
          <component-family>javax.faces.Output</component-family>
          <renderer-type>tblmaint.rptTableRowRenderer</renderer-type>
          <renderer-class>com.monsanto.ag_it.fieldops.aim.tblmaint.renderer.RptTableRowRenderer</renderer-class>
     </renderer>
</render-kit>
<render-kit>
     <renderer>
          <component-family>javax.faces.Column</component-family>
          <renderer-type>tblmaint.rptTableColRenderer</renderer-type>
          <renderer-class>com.monsanto.ag_it.fieldops.aim.tblmaint.renderer.RptTableColRenderer</renderer-class>
     </renderer>
</render-kit>I sure hope that someone can help me out. Please let me know if you need any additional information.
Thanks,
Ray

Hi, Ray!
1) I was trying to put a button in the column header (for sorting) and I couldn't get that to work. That involved the >colhdr tag. I got that to work but I don't remember the fix. I'll look it up and reply back with that when I can.Dealing the first part of your trouble, you need NOT a custom component.
I have looked through the implementation of RepeaterRenderer, as you advised me, and found that the multi-header possibility is included in the implementation of dataTable control.
The code below is the part of source of repeater.jsp with only change:
<d:data_repeater>  <h:dataTable>
And it works fine.
<h:dataTable id="table"
binding="#{RepeaterBean.data}"
     rows="5"
value="#{RepeaterBean.customers}"
var="customer">
<f:facet name="header">
<h:outputText value="Customer List"/>               <!� First Header row -- >
</f:facet>
<h:column>
<%-- Visible checkbox for selection --%>
<h:selectBooleanCheckbox
id="checked"
binding="#{RepeaterBean.checked}"/>
<%-- Invisible checkbox for "created" flag --%>
<h:selectBooleanCheckbox
id="created"
binding="#{RepeaterBean.created}"
rendered="false"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Account Id"/>               <!�Second Header row -- >
</f:facet>
<h:inputText id="accountId"
binding="#{RepeaterBean.accountId}"
required="true"
size="6"
value="#{customer.accountId}">
</h:inputText>
<h:message for="accountId"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Customer Name"/>               <!�Second Header row -- >
</f:facet>
<h:inputText id="name"
required="true"
size="50"
value="#{customer.name}">
</h:inputText>
<h:message for="name"/>
</h:column>
<h:column>
<f:facet name="header">                    <!�Second Header row -- >
<h:outputText value="Symbol"/>
</f:facet>
<h:inputText id="symbol"
required="true"
size="6"
value="#{customer.symbol}">
<f:validateLength
maximum="6"
minimum="2"/>
</h:inputText>
<h:message for="symbol"/>
</h:column>
<h:column>
<f:facet name="header">                    <!�Second Header row -- >
<h:outputText value="Total Sales"/>
</f:facet>
<h:outputText id="totalSales"
value="#{customer.totalSales}">
<f:convertNumber
type="currency"/>
</h:outputText>
</h:column>
<h:column>
<f:facet name="header">                    <!�Second Header row -- >
<h:outputText value="Commands"/>
</f:facet>
<h:commandButton id="press"
action="#{RepeaterBean.press}"
immediate="true"
value="#{RepeaterBean.pressLabel}"
type="SUBMIT"/>
<h:commandLink id="click"
action="#{RepeaterBean.click}"
immediate="true">
<h:outputText
value="Click"/>
</h:commandLink>
</h:column>
</h:dataTable>
You may have a look at HTML source to prove that dataTable is already what you need:
<table id="myform:table">
<thead>
<tr><th colspan="6" scope="colgroup">Customer List</th></tr>
<tr>
<th scope="col"></th>
<th scope="col">Account Id</th>
<th scope="col">Customer Name</th>
<th scope="col">Symbol</th>
<th scope="col">Total Sales</th>
<th scope="col">Commands</th>
</tr>
</thead>
<tbody>
2.) The second trouble is still unsettled as previously. Right now I have different task at my job, and I can�t continue investigation of this problem.
But when you find smth., please let me know. I�ll be very grateful.
Regards,
Oleksa Stelmakh

Unable to Edit the View in Custom Component

Hi Experts,
Please help me to resolve this issue !
I am unable to lock the BOL Entity in my custom component using BTAdminH. I have written the below code in the Edit event Handler for Edit Button. The lr_entity->lock( ) condition statement is getting false and it is skipping the "set_view_editable( me )." code statement. Why??
This is code excerpt that I have taken from edit button of the BP_HEAD/AccountViewSet and altered to my component/View
DATA: lr_entity     TYPE REF TO cl_crm_bol_entity,
        lr_controller TYPE REF TO cl_ZVKH8_bspwdcomponent_impl.
TRY.
      lr_controller ?= me->comp_controller.
      lr_entity ?= lr_controller->typed_context->btadminh->collection_wrapper->get_current( ).
IF lr_entity IS BOUND.
IF lr_entity->IS_LOCKED EQ abap_false.
    IF le_entity->IS_CHANGEABLE EQ abap_true.
       IF lr_entity->lock( ) EQ abap_true.
        me->view_group_context->set_view_editable( me ).
       ENDIF.
    ENDIF.
ENDIF.
ENDIF.
and when I directly executed the below code in the Edit event Handler for Edit Button I am receiving the dereferencing NULL value exception. Why in my custom component in many places this happening??
me->view_group_context->set_view_editable( me ).
Exception Details
CX_SY_REF_IS_INITIAL - Dereferencing of the NULL reference
Method: ZL_ZVKH8_DETAILSEF_IMPL=>EH_ONBACK
Thanks,
Bujji

Hi Summit & NishaNC,
Thanks for your responses !
As suggested, I have debugged the code for ->lock( ) method and there are exceptions raised from some methods.
Method GET_LOCK () -> Method GET_ROOT () ->Method GET_PARENT ()
At GET_ROOT( ) method i have received an exception
"Root entity BTAdminH could not be determined" and one more "Entity BTAdminH could not be locked"
Later when I have checked in MODEL Browser, I found that the BOL object "BTAdminH" for my view is an Access object and not the Root Object.
Hence, I have a question? Does the locking can be done only for ROOT Objects?
If this is TRUE then I think this is the major problem with my custom component where even the cross component navigation is also not happening and in many places I am receiving "Dereferencing NULL Value" information.
Also I have gone through some of the Threads and one information that I found from Sumit Mittal
1. An access object is an independent entity, has primary keys of its own.
2. A root object is a special access object that is at the top of the hierarchy based on business rules.
3. A dependent object's primary keys are supplied by access objects and it's lifetime is bound to them. If the parent object is destroyed, the dependent object is also destroyed.
4. Search objects are query objects useful for querying root objects
5. Search result objects - Search objects return the results in the form of a result object together with a relation pointing to the root object.
6. View objects - ?
7. Dynamic search objects - Used in advanced search, supports ranges and operators
Could you please specify in which scenarios we have to go for Access Objects and Root Objects
Thanks,
Bujji

How do you reference a valueObject located in main to a custom component created in Catalyst?

Hello,
I have been working with the Catalyst Beta 2 / Flash Builder beta trying to create a photogallery and have hit a little bit of a snag, try as I might I can't seem to find the answer anywhere. I am still new to Flex so please excuse me if this is a basic question, I have been trying to understand more about Flex to make my designs in Catalyst better.
I found this video on Adobe TV: http://tv.adobe.com/watch/rich-internet-applications-101/ria-stepbystep-16-binding-a-data- service-to-flash-builder-components/
It's wonderful and I have the datalist I created in Catalyst working with the XML file I generated but I designed my little photogallery a bit diffrent, I created a Custom Component in Catalyst so that when you click an item on the DataList it pop's up a little screen with a larger photo in on it, rather then having an image in the main application. Now my problem seems to be that I can't refrence the valueObject I created with the wizard as it's in my Main.mxml file, is there a way to refrence it from my Custom Component so the larger image will display? Is there a way to let the component know which item on the dataList in the main application is selected and display the correct image?
I should also say I really enjoy working with the Beta for both Flash Builder / Catalyst, thanks for the hard work!
Thanks for the help,
Chris

I am afraid you cannot bind to static properties in Windows Store Apps. It is simply not supported.
You could create a proxy class that exposes the static command property and bind to this property of an instance of the proxy object:
http://stackoverflow.com/questions/14186175/bind-to-a-static-field-in-windows-8-xaml
http://stackoverflow.com/questions/4708711/how-can-i-use-the-xstatic-extension-for-phone7-silverlight-apps
You will of course have to create an instance of the proxy object. There is no way around this.
Please remember to mark helpful posts as answer to close your threads and then start a new thread if you have a new question.

How to handle custom component data on overviewset save button CRM UI

Hi,
I have added a custom component to a standard view which is enchanted.
I can handle any data with my buttons on the component but after editing data
i need the save the data when the save button on the overview(top) is pressed.
I have redefined save button of overview but i cant get my data.
My node name is Root. I think i couldnt bind it to overview.
How can i do that?
Thank you

Probably it can be done by
http://wiki.sdn.sap.com/wiki/display/CRM/CRMWebUITechnical-CreatingTableViewInWebUI
i am trying
Thank you

Custom Component UI not displaying in 11G

Hi All,
   We have a custom component in 10G where we have added new link in the UCM Home Page, it will be displayed beside Administration tab with name Edit Tables, under this we have sub links Alldistr_RVS, Distprod, Distuser, Prdstate, Products_RVS, State_RVS, Stateusr. When we deployed this code in 11G it is not working. Could any one please provide me code to make it work in 11G instace. Appreciate your help on this.
Below is the code used in 10G in resource file
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>
ampfRVSEditTables htmlIncludeOrString
</title>
</head>
<body>
<@dynamichtml custom_finish_layout_init@>
<$include super.custom_finish_layout_init$>
<$include how_to_components_menu$>
<$include vbis_edit_tables_link$>
<@end@>
<@dynamichtml how_to_components_menu@>
<$if not how_to_components_menu_included$>
//add a drop-down menu, or a tray to the UI
navBuilder.addChildNodeTo('NAVTREE', 'collection', 'id==EDIT_Tables', 'label==Edit Tables');
if (navBuilder.menuB)
navBuilder.menuB.addTopLevelNode("EDIT_Tables");
else if (navBuilder.trayA)
navBuilder.trayA.addTopLevelNode("EDIT_Tables");
<$EDIT_Tables_menu_included=1$>
<$endif$>
<@end@>
<@dynamichtml vbis_edit_tables_link@>
navBuilder.addChildNodeTo('EDIT_Tables', 'item', 'id==ALLDISTR_RVS',
'label==Alldistr_RVS', 'url==<$HttpCgiPath$>?IdcService=GET_ALLDISTR_RVS_PAGE');
navBuilder.addChildNodeTo('EDIT_Tables', 'item', 'id==DISTPROD',
'label==Distprod', 'url==<$HttpCgiPath$>?IdcService=GET_DISTPROD_PAGE');
navBuilder.addChildNodeTo('EDIT_Tables', 'item', 'id==DISTUSER',
'label==Distuser', 'url==<$HttpCgiPath$>?IdcService=GET_DISTUSER_PAGE');
navBuilder.addChildNodeTo('EDIT_Tables', 'item', 'id==PRDSTATE',
'label==Prdstate', 'url==<$HttpCgiPath$>?IdcService=GET_PRDSTATE_PAGE');
navBuilder.addChildNodeTo('EDIT_Tables', 'item', 'id==PRODUCTS_RVS',
'label==Products_RVS', 'url==<$HttpCgiPath$>?IdcService=GET_PRODUCTS_RVS_PAGE');
navBuilder.addChildNodeTo('EDIT_Tables', 'item', 'id==STATE_RVS',
'label==State_RVS', 'url==<$HttpCgiPath$>?IdcService=GET_STATE_RVS_PAGE');
navBuilder.addChildNodeTo('EDIT_Tables', 'item', 'id==STATEUSR',
'label==Stateusr', 'url==<$HttpCgiPath$>?IdcService=GET_STATEUSR_PAGE');
<@end@>
</body>
</html>
Thanks.
Ashok

Hi Jiri,
   I from the sample example I tried to develop component to display HOW_TO_COMPONENTS as Menu item under which there is sub item Annuity_Dispname_Mapping, but it is not displaying. I am afraid where it went wrong. Below is the code i used, please help me to fix this. Thank you
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>
MenuExample htmlIncludeOrString
</title>
</head>
<body>
<@dynamicdata CoreMenuItems@>
id,           label,       linkType, linkData
HOW_TO_COMPONENTS, How To Components, YuiDev,
ANNUITY_DISPNAME_MAPPING, Annuity_Dispname_Mapping, YuiDev, <$HttpCgiPath$>?IdcService=GET_DATA_ACCESS_PAGE
<@end@>
<@dynamicdata CoreMenuItemRelationships@>
<?commatable mergeKey="primaryKey"?>
parentId,    id,           loadOrder
MENU_A,      HOW_TO_COMPONENTS, 1000
HOW_TO_COMPONENTS, ANNUITY_DISPNAME_MAPPING, 10
<@end@>
<@dynamicdata CoreMenuItemsFlags@>
id,           flags
HOW_TO_COMPONENTS, isLoggedIn
ANNUITY_DISPNAME_MAPPING, isLoggedIn
<@end@>
<@dynamicdata CoreMenuItemsImages@>
id,           image,                imageOpen
HOW_TO_COMPONENTS,     ScsPageItem.gif,
ANNUITY_DISPNAME_MAPPING,     ScsPageItem.gif,
<@end@>
<@dynamicdata ampcustom_menu_items_template_data@>
<?commatable indexedColumns="id"?>
id,                  parentId,    linkType,        flags
HOW_TO_COMPONENTS_LINK_TEMPLATE, HOW_TO_COMPONENTS, external,
<@end@>
<@dynamichtml custom_navigation_menu_items@>
<$include super.custom_navigation_menu_items$>
<$urlCount = 0$>
<$if utLoadResultSet("pne_portal", "PersonalURLS")$>
<$if rsFirst("PersonalURLS")$>
<$loop PersonalURLS$>
<$ddAppendIndexedColumnResultSet("ampcustom_menu_items_template_data", "NavigationMenuItems", "id", "HOW_TO_COMPONENTS_LINK_TEMPLATE")$>
<$rsLast("NavigationMenuItems")$>
<$NavigationMenuItems.id = "HOW_TO_COMPONENTS_" & urlCount$>
<$NavigationMenuItems.label = js(title)$>
<$NavigationMenuItems.linkData = js(website)$>
<$NavigationMenuItems.loadOrder = urlCount$>
<$urlCount = urlCount + 1$>
<$endloop$>
<$endif$>
<$endif$>
<@end@>
</body>
</html>
Thanks

Decode-method for custom component isn't called

Hi,
i have writen a custom component which gets some information by command-link. To make the data from the link accessible, i wrote a decode method in my renderer and in me component. But both method are not called from the faces framework.
Dows anybody knows what i made wrong???
Thanks, Sebastian

Hi,
thank you for your reply.
Unfortunately the processDecodes(...) of my component is also not called from the framework. Does anybody knows what i'm making wrong???
Thanks!

Problem with attributes in custom component

Hi All,
I am creating a simple jsf PanelGrid custom component....in that component I am adding two new attributes....
when I use that tag in my jsf application it is rendering fine in the client side....but the parent class that is PanelGrid component's attributes are not inheriting to my custom panelgrid....
can any one tell me how can I use the attributes of the super class PanelGrid??
Thanks...

Have you configured the attributes in the tag library descriptor?

How to construct the component tree in my custom component?Help!

Hi, i am writing a custom component like this:
public class HtmlCategory extends HtmlPanelGrid
     public void processRestoreState(javax.faces.context.FacesContext context,
            java.lang.Object state)
          setColumns(1);
          HtmlCommandLink link=new HtmlCommandLink();
          link.setValue("Let's Bingo");
          MyUtil.setActionListener(context,link,"#{temp.mytest}");
          UIParameter param=new UIParameter();
          param.setName("name");
          param.setValue("Robin!");
          link.getChildren().add(param);
          param.setParent(link);
          getChildren().add(link);
          link.setParent(this);
          super.processRestoreState(context,state);
}         you see, i want to construct the compont tree at Restore View phase this way,because the structure of the component tree will always be the same, so i don't the user to write extra code.
But the children of the component are not rendered,the renderer of the HtmlCategory component just extends the HtmlGridRenderer(myfaces) directly,and always calls the "super" methods in the encode methods of the renderer.
I got a message from the console:
Wrong columns attribute for PanelGrid id0:id4: -2147483648
but i have set the columns attribute in the code above, so what's happening? or please give some advice about how to render the component tree by myself in Restore View with the tree constructing code in the custom component class code,just lke the code above.
Best Regards:)
Robin

Well, i don't know if i have got my question clear.
usually, according to the tags you use in the jsf page, a component tree will be created at the Restore View phase,for example:
<f:form>
<h:panelGrid ...........>
          <h:dataTable ................>
          </h:dataTable>
   </h:panelGrid>
</f:form>but because i am writing a component for my web app, all the child components and their attributes are not likely to change. so i want to reduce the tags into one custom tag, and construct the component tree internally by myself.But it is not the case of backing bean.So i wrote the the code in the method:
public void processRestoreState(javax.faces.context.FacesContext context,java.lang.Object state)as it is shown in my orginal message.But it seems that it is not right way to construct my component tree.So where should i put the code that construct the component tree?Overriding the method :
public void processRestoreState(javax.faces.context.FacesContext context,java.lang.Object state)is not the right way?
Best Regards:)
Robin

I want to add DataGrid in my custom component as a child component,

I want to add DataGrid in my custom component as a child component, can we ?? or should i generate HTML for table creation in my custom component's renderer ?

I did that:
for example, if i want to add a Button control in my custom control:
public void encodeChildren( FacesContext context ) throws IOException
         super.encodeChildren( context );
        //createComponent raises exception.... invalid component type
        //UIComponent field = FacesContext.getCurrentInstance().getApplication().createComponent( javax.faces.component.html.HtmlInputText.class.getName() );
         HtmlInputText input = new HtmlInputText();
        getChildren().add( input );
    public boolean getRendersChildren()
        return true;
    }Can you give me any example, i want to add child components at run time basically..

Can I use axis.jar in my custom component

Can I use axis.jar in my custom component.
Is there any license need to user this jar ??
Thanks

In our UCM setup axis has been implemented in a custom component to consume webservices. As Axis falls under the Apache license you can freely import it in your custom java classes.

JPanel won't display my custome component

Hi,
I made a custome component class that in its paint method at this stage is suppose to paint a white rectangle on screen. However the when I add this custome component to my JPanel it doesn't show up. Does anybody have a solution for this?
My code for the custome component is,
public spaceMediaDisplayObject(mediaObject mo){
     x = mo.getSpaceX();
     y = mo.getSpaceY();
     height = mo.getHeight();
     width = mo.getWidth();
     name = mo.getName();
     System.out.println("Constructor");
     this.repaint();
public void paint(Graphics g){
     System.out.println("Draw");
     g.setColor(Color.white);
     g.drawRect(x, y, height, width);
And the fragment of code I am using to try and display in on the panel is as follows,
spaceMediaDisplayObject smdo = new spaceMediaDisplayObject(toDisplay);
     spaceBodyPanel.add(smdo);
Please help if able.

If it's null then you need to set the size of each component explicitly:
JPanel panel = new JPanel(null);
Component customComponent = new CustomComponent();
panel.add(customComponent);
customComponent.setBounds(0, 0, 100, 100); // For exampleA simple layout manager could be used to make the component fill the panel, for example:
JPanel panel = new JPanel(new GridLayout(1, 1));
panel.add(new CustomComponent());Hope this helps.

Advice on creating a tricky custom component

Hi,
I'm working on creating a custom component which displays a image at the top of the canvas, and loops through a passed array collection, displaying each row of the array collection in a item renderer. So the component should look like this (see attached image).
As you can see from this image the header is a image itself, this will differ every instance of the panel, there should be 3 of these panels on the page. Then each row of data is a item renderer displaying the data provided from a array collection of value object. If there are 4 items in this array collection then the panel should show 4 rows, if there are 2 row in the array then the panel will display 2 rows. Also the height of the panel will dynamically change depending on the number of rows to show.
I was thinking of extending a Canvas component, and then passing in the image URL and trying to load and draw the image dynamically, then I was thinking of using the Drawing API to create the rectangle shape using the drawRoundRectComplex() of the graphics class.
The problems I see with this is that I don't think the drawn rectangle shape can re-draw itself to show the change in height when more or less row of data need to be be displayed.
Another option I have been thinking about is extending the Panel class to create my component, this may be better for handling the height resizing, but I'm not sure it can support the look of this component (the header image and the three rounded corners).
Could anyone give me some advice on what would be the better option for creating this component.
Thanks
Stephen

Reset custom component

Similar Messages

Maybe you are looking for