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Sivarama Raju

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posted 15 years ago

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Hi friends,

Can any one please guide me to create a dropdown using JSF ?

Thanks and regards,

Arun Thulaseedharan

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Posts: 20

posted 15 years ago

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i think you can make use of <h:selectOneMenu> tag available in jsf for this....

<h:selectOneMenu value="#{form.day}">
<f:selectItem itemValue="Sunday" itemLabel="Sunday"/>
<f:selectItem itemValue="Monday" itemLabel="Monday"/>
<f:selectItem itemValue="Tuesday" itemLabel="Tuesday"/>
<f:selectItem itemValue="Wednesday" itemLabel="Wednesday"/>
<f:selectItem itemValue="Thursday" itemLabel="Thursday"/>
<f:selectItem itemValue="Friday" itemLabel="Friday"/>
<f:selectItem itemValue="Saturday" itemLabel="Saturday"/>
</h:selectOneMenu>

supposing that you want the value selected to go to the backing bean this code snippet is fine i guess.. here the value goes to the backing bean "form" and updates the property "day"....n for making this drop down we can make use of either <f:selectItem> when the list in the drop down is less and <f:selectItems> when the list in the drop down is more and you need to populate that from a backing bean......hope this answer your question...

Tim Holloway

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posted 15 years ago

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You can also provide the selectItems as a list from a backing bean.

Note: please try to be more specific with your topic titles - it attracts people who are better able to help you when they know what the subject of the question will be without having to open up the message.

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You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.

Sivarama Raju

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posted 15 years ago

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Hi Arun,

Thanks a lot for you reply friend. I will try using <h:selectOneMenu>.
I will inform you about my progress. Thanks a lot.

Thanks and regards,
siva

Sivarama Raju

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posted 15 years ago

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Hey, thanks Tim.

Sivarama Raju

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posted 15 years ago

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hi Arun,

I tried a lot with the Dropdown, but couldn't give action to the submit button, for the items in dropdown. This is my code:

JSF:
<h:selectOneMenu value="#{CalcBean.selectValue}">
<f:selectItem itemLabel="Add" itemValue="SubmitAdd" />
<f:selectItem itemLabel="Multiply"itemValue="SubmitMultiply" />
<f:selectItem itemLabel="Subtract" itemValue="SubmitDivide" />
<f:selectItem itemLabel="Divide" itemValue="SubmitDivide"/>
</h:selectOneMenu>

<h:commandButton action="#{CalcBean.selectChoice}" "Submit"></h:commandButton>

Backing bean:

public String selectChoice() {
String returnVal = "";
if (selectValue == "SubmitAdd") {
returnVal = add();
} else if (selectValue == "SubmitMultiply") {
returnVal = multiply();
} else if (selectValue == "SubmitSutract") {
returnVal = subtract();
} else if (selectValue == "SubmitDivide") {
returnVal = divide();
}
return returnVal;
}

public String getSelectChoice() {
return selectChoice;
}

public void setSelectValue(String aSelectValue) {
this.selectValue = aSelectValue;
}

public String getSelectValue() {
return selectValue;
}

Hey i am new yaar, might have dont some silly mistakes.

Thanks and regards,
siva
[ May 22, 2008: Message edited by: Sivarama Raju ]

Arun Thulaseedharan

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Posts: 20

posted 15 years ago

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this is my first page....
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>

<f:view>

<head>
<title><h:outputText value="ProjectTrack" /></title>
</head>
<body>
<h:form>
<h:selectOneMenu value="#{calcBean.selectValue}">
<f:selectItem itemLabel="Add" itemValue="SubmitAdd" />
<f:selectItem itemLabel="Multiply" itemValue="SubmitMultiply" />
<f:selectItem itemLabel="Subtract" itemValue="SubmitSubtract" />
<f:selectItem itemLabel="Divide" itemValue="SubmitDivide" />
</h:selectOneMenu>

<h:commandButton value="Submit" type="submit" action="#{calcBean.selectChoice}" />
</h:form>
</body>
</f:view>
</html>

i think you dint put the tags inside a h:form...i guess only then you will be able to include that command button.....

Sivarama Raju

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posted 15 years ago

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<?xml version="1.0" encoding="ISO-8859-1" ?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core" version="2.0">

<ui:composition>
<h:form id="CalcForm">
<h:panelGrid columns="3">
<h:outputLabel value="First Number" for="firstNumber" />
<h:inputText id="firstNumber" value="#{CalcBean.firstNumber}"
required="true" />
<h:message for="firstNumber" />

<h:outputLabel value="Second Number" for="secondNumber" />
<h:inputText id="secondNumber" value="#{CalcBean.secondNumber}"
required="true" />
<h:message for="secondNumber" />
</h:panelGrid>
<h:panelGroup>

<h:selectOneMenu value="#{CalcBean.selectChoice}">

<f:selectItem itemLabel="Add" itemValue="SubmitAdd" />
<f:selectItem itemLabel="Multiply" itemValue="SubmitMultiply" />
<f:selectItem itemLabel="Subtract" itemValue="SubmitDivide" />
<f:selectItem itemLabel="Divide" itemValue="SubmitDivide"/>

</h:selectOneMenu>

<h:commandButton action="#{CalcBean.selectValue}" value="Submit"></h:commandButton>

</h:panelGroup>
</h:form>
</ui:composition>
</jsp:root>

Hi Arun
this is my dropdown.jspx page

Tim Holloway

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posted 15 years ago

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NOTE

Sivarama has reposted the question in this thread: https://coderanch.com/t/214027/JSF/java/Dropdown-created-has-list-items

It can be confusing when the same question is being answered by in different threads by people who don't know what other people are saying, so we ask that anyone wishing to say anything further on the topic respond on the new thread listed above.

Paul, could you close this thread, please? Sivarama's just taking my advice to use a more specific topic name, but since the topic was already started, we've ended up with this unfortunate situation.

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