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Struts & Hibernate
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| | | Multiple selections with an indexed field | Multiple selections with an indexed field 2007-02-05 - By Ray, Marla S
Back
I have a somewhat complicated form that I'm trying to create using
Struts. I actually have the form working but we need to make an
enhancement that makes it even more complicated. I have tried googleing
and searching several places to find an example that will help me. I
have found examples that solve part of the problem but not all of it.
What I have is a form that has some fixed fields and then a variable
number of other fields. I'm using the iterate tag and the indexId to
display each of the variable fields. It looks like:
<logic:iterate id="field" name="infoDatas" type="InfoData"
indexId="fieldIndex">
....
</logic:iterate>
Within my iterate I display each field. Some fields are displayed as
text input and some are displayed as selection lists. The selection
list display looks like:
<html:select property="<%=\"theValues[\"+fieldIndex+\"]\"%>">
<bean:define id="theSelectionList" name="field"
property="infoType.selectionList" />
<html:options collection="theSelectionList" property="value"
labelProperty="value" />
</html:select>
In my Form I have theValues defined as a String array:
private String[] theValues = {};
And I have all the proper getters and setters:
public String[] getTheValues() {
return theValues;
}
public String getTheValues(int whichone) {
if (whichone > theValues.length-1 (See http://gth-1.ora-code.com)) {
return " ";
}
else {
return theValues[whichone];
}
}
public void setTheValues(String[] theValues) {
this.theValues = theValues;
}
public void setTheValues (int whichone, String theValue) {
if (theValues.length == 0) {
this.theValues = new String[whichone+1];
}
else if (whichone > theValues.length-1 (See http://gth-1.ora-code.com)) {
String[] newValues = new String[whichone+1];
for (int i=0; i<theValues.length; i++) {
newValues[i] = theValues[i];
}
this.theValues = newValues;
}
this.theValues[whichone] = theValue;
}
Now we need to allow the user to select multiple values for some of the
selection lists. I'm thinking I need an array of String arrays or
something like that so I can still use the indexId but get it to allow
for multiple values but I can't find any examples of what I need and I'm
having a mental block making the jump in logic.
If someone can help me with an example or something to get me past my
mental block I would really appreciate it.
Thanks
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