CODEWITHSUNDEEP
listboxstruts2
wabbit
wabbit

Reputation: 1

struts 2 listbox multiple preselecting

I have a listbox in my input screen(Jsp in struts 2) and I want to display the selected items as a listbox in the output screen too. I tried using the preselect option but I am able to select only 1 value.

This is my input screen listbox code line:

<s:select multiple="true" name="color" label="Color"  size="4" list="#{'1':'blue','2':'pink','3':'green','4':'purple','5':'crimson','6':'indigo'}" />

This is my output screen listbox code line:

<s:select multiple="true" name="colorN" label="ColorN"  size="4" list="#{'1':'blue','2':'pink','3':'green','4':'purple','5':'crimson','6':'indigo'}" value="%{color}"/>

Upvotes: 0

Views: 4880

Answers (1)

lschin
lschin

Reputation: 6811

Description of attribute s:select multiple :

Creates a multiple select. The tag will pre-select multiple values if the values are passed as an Array or a Collection(of appropriate types) via the value attribute. If one of the keys equals one of the values in the Collection or Array it wil be selected

Array : {4, 6}

<s:select 
   name="colorN"
   multiple="true"
   size="6" 
   list="#{1:'blue', 2:'pink', 3:'green', 4:'purple', 5:'crimson', 6:'indigo'}" 
   value="%{{4, 6}}"
/>

or

Collection : colors

public List<Integer> getColors() {
    return Arrays.asList(4, 6);
}

_

<s:select 
   name="colorN"
   multiple="true"
   size="6" 
   list="#{1:'blue', 2:'pink', 3:'green', 4:'purple', 5:'crimson', 6:'indigo'}" 
   value="colors"
/>

Upvotes: 2

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