[英]Set select value in gsp
Controller: 控制器:
def abbrev = [:]
abbrev.put(1,"I")
abbrev.put(2,"II")
abbrev.put(3,"III")
abbrev.put(4,"IV")
List<Expando> abbreviations = abbrev.collect{
abbreviation -> Expando.newInstance(key:abbreviation.key,value:abbreviation.value)
}
def row = [:]
def programRows = [ ]
somelist.each {
item -> row = [key1:value1, key2,value2 ]
programRows << row
}
[abbreviations:abbreviations, programRows:programRows ]
I iterate through programRows so i get a map ( programRow ). 我通过programRows进行迭代,所以我得到了一张地图(programRow)。 the map value1 is equivalent to a key in abbreviations ( List of Expandos ) so i want to set the select value based on this: i commented the option value so you can understand what value i want to assign. 映射value1等效于缩写键(Expandos列表),因此我想基于此设置选择值:我评论了选项值,以便您可以了解要分配的值。
View gsp: 查看gsp:
<g:each in="${programRows}" var="programRow">
<g:select name="abbrevs" from="${abbreviations}" optionValue="//programRow.get('key1')//" optionKey="key" class="vfuCourseAbbreviations"/>
How can i do this?? 我怎样才能做到这一点??
I'd put your code so: 我将您的代码放入:
def someAction(){
def abbreviations = [ 'I', 'II', 'III', 'IV' ]
def programRows = somelist.collect {
[ key1:value1, key2:value2 ] // as "value1" you have to pass the index in "abbreviations"
}
[ abbreviations:abbreviations, programRows:programRows ]
}
the GSP: GSP:
<g:each in="${programRows}" var="programRow">
<select name="abbrevs">
<g:each in="${abbreviations}" var="abbr" status="i">
<option value="${i}" ${i == programRow.key1 ? 'selected' : ''}>${abbr}</option>
</g:each>
</select>
</g:each>
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