<s:select how to fill with key and value

[biny panackal]

Dear all,
First i am thanking you all who helped me to solve the problme.

Now i need to fill a select combo <s:select with key and value attribute. I am able to fill it with only values but no key. How can i set key value for each option content in ><s:select>

	<s:select label="Select Category" name="qstCategory" list="qstCategory" headerKey="1" headerValue="-- Please Select --" />

This is my select combo and i am listing the method that i used to fill the combo

private List day;
List qstCategory;
List qstCategoryKey;
String usrQst;

public String execute()throws Exception{

    qstCategory = new ArrayList();
    qstCategory.add("Sunday");
    qstCategory.add("Monday");
    qstCategory.add("Tuesday");
    qstCategory.add("Wednesday");
    qstCategory.add("Thursday");
    qstCategory.add("Friday");
    qstCategory.add("Saturday");
    qstCategoryKey=new ArrayList();
    qstCategoryKey.add("Sun");
    qstCategoryKey.add("Mon");
    qstCategoryKey.add("Tue");
    qstCategoryKey.add("Wed");
    qstCategoryKey.add("Thu");
    qstCategoryKey.add("Fri");
    qstCategoryKey.add("Sat");
    return SUCCESS;

  }

	
   public List getQstCategory(){
        return qstCategory; 
   }

   public void setQstCategory(List qstCategory){
          this.qstCategory=qstCategory;
   }

Waiting for a replay .


Regards,
Biny Balan
[e-mail]

[biny panackal]

expecting replay
can i fill a <s:select using hashtable>

[Ankit Garg]

Well if you use a java.util.List in the list attribute of the select tag, then the listKey and listValue both point to the values in the list. If the elements in the list are complex objects like for example a User class object with properties name and id, then you can set the listKey and listValue attributes to point to then like for example - listKey="id" listValue="name".

If you don't want that, then you must use a java.util.Map so that the listKey points to the keys in the map and listValue points to the values in the map...

[biny panackal]

So if i created a class

Sucategory{
String id
String value
}

and i add object of the same to the list

and if i give like="list" listKey="id listValie="value" wether it will work

[Ankit Garg]

biny panackal wrote:So if i created a class

Sucategory{
String id
String value
}

and i add object of the same to the list

and if i give like="list" listKey="id" listValie="value" whether it will work

I think it will work if you write listValue instead of listValie and the the list contains a list whose elements are of type Sucategory...

[biny panackal]

I am using a class now with two field key and value

package bean;
public class AnsCategory{
	String key;
	String value;
	AnsCategory(String key,String value){
	this.key=key;
	this.value=value;

	}
}

i filled to to list

List qstCategory


qstCategory = new ArrayList();
qstCategory.add(new AnsCategory("A","AAA"));
qstCategory.add(new AnsCategory("B","BBB"));
qstCategory.add(new AnsCategory("C","CCC"));

getter and setter method


public List getQstCategory(){
return qstCategory;
}



and for <s:select

list="qstCategory" listKey="#qstCategory['key']"

I am not getting the proer value filled in the drop down
public void setQstCategory(List qstCategory){
this.qstCategory=qstCategory;
}




>

[Ankit Garg]

Try adding javabean methods into AnsCategory class

package bean;
public class AnsCategory{
	String key;
	String value;
	AnsCategory(String key,String value){
	this.key=key;
	this.value=value;
	}
	public String getKey() {
		return key;
	}
	public void setKey(String key) {
		this.key = key;
	}
	public String getValue() {
		return value;
	}
	public void setValue(String value) {
		this.value = value;
	}
}

Also why are you using this syntax

listKey="#qstCategory['key']"

This means that you are trying to access an attribute from the ActionContext. The listKey and listValue are string properties. Use this

<s:select list="qstCategory" listKey="key" listValue="value"> 

[biny panackal]

Thaks a lot . That worked fine.

But i still have some doubt in that concept. When we create a object. The values are assigned to the appropriate variables. when i am creating other with other the list hold object of diffrent values in each position. So why we need to use the bean property getter and settter since it will also do the same one.