Grails elseif Tag Example

Jan 27, 2016 Tag comments

The Grails elseif tag (<g:elseif>) tag is used together with the if tag (<g:if>) and optionally with the else tag (<g:else>). The elseif is used if there are more than one test that needs to be performed. Here is a simple example on how to use this tag.

Example

Here is a controller code that will pass a number to a GSP:

class TestController {
    def index() {
        [num:-50]
    }
}

Here is a GSP code that uses both if, elseif, and else tags:

<g:if test="${num==0}">
    The number ${num} is zero.
</g:if>
<g:elseif test="${num<0}">
    The number ${num} is negative.
</g:elseif>
<g:else>
    The number ${num} is positive.
</g:else>

Notice that there are 2 test condition and 3 possible outcome.

The expected output is:

The number -50 is negative. 

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Other Grails Tag Examples

• <g:actionSubmit>
• <g:actionSubmitImage>
• <g:checkBox>
• <g:collect>
• <g:country>
• <g:countrySelect>
• <g:currencySelect>
• <g:datePicker>
• <g:each>
• <g:else>
• <g:elseif>
• <g:findAll>
• <g:if>
• <g:join>
• <g:localeSelect>
• <g:remoteField>
• <g:textArea>
• <g:textField>
• <g:timeZoneSelect>
• <g:unless>
• <g:while>