Aww, crap. I see it was already answered in a different thread….or something that showed up under a different thread in my mail reader at least. Sorry for the noise.
On Monday, July 23, 2012 at 11:46 PM, David Hosier wrote: > I think it's likely because your KeyValue class does not implement equals. > Your defaultValue has its own new instance of KeyValue that contains the key > JAVA and the value java. Your defaultValue instance and what you think is the > same instance in your list are not the same unless you correctly implement > equals() to identify them as the same. So you are telling the dropdown that > it should select something that it does not have in the list. Also, and this > may just be semantics, but it's probably inappropriate to call that thing a > default value since the dropdown will update the defaultValue value with > whatever you select in the dropdown (i.e. that defaultValue will only be the > default value until you change the selected value in the dropdown). So it's > probably more appropriately named selectedValue. > > -David > > > On Sunday, July 22, 2012 at 10:12 AM, vimal kumar wrote: > > > Hi All, > > I have searched and wasted much of my time figuring out the default Value > > for DropDownChoice for Object as dropdown but couldn't find the solution. > > For "String" dropdown i was able to make it work but somehow for object it > > is not working. > > Below is the Simple example that i have been trying, > > DropDownChoicePage.html and DropDownChoicePage.java files. > > Can someone please help me that what am i missing into > > "DropDownChoicePage.java" class that is not setting the Drop Down Default > > value? > > ---------------------------------------- > > DropDownChoicePage.html > > <html xmlns="http://www.w3.org/1999/xhtml";><head> <title>DropDown > > Example</title></head><body> Select your favorite Language <select > > wicket:id="languageDropDown"></select> </body></html> > > --------------------------------------------------------------- > > DropDownChoicePage.java > > public class DropDownChoicePage extends WebPage { > > public class KeyValue { > > private String key; private String value; > > public KeyValue(String key, String value) { this.key = key; this.value = > > value; } > > public String getKey() { return key; } > > public String getValue() { return value; } > > public void setKey(String key) { this.key = key; } > > public void setValue(String value) { this.value = value; } > > @Override public String toString() { return getKey(); } } > > private static final long serialVersionUID = 2304448232406333188L; > > private KeyValue defaultValue = new KeyValue("JAVA", "Java"); > > /** * Constructor */ public DropDownChoicePage() { > > List<KeyValue> keyValues = new ArrayList<DropDownChoicePage.KeyValue>(); > > keyValues.add(new KeyValue("PHP", "php")); keyValues.add(new > > KeyValue("JAVA", "Java")); keyValues.add(new KeyValue("DOT_NET", "Dot > > Net")); > > DropDownChoice<KeyValue> dropDownChoice = new DropDownChoice<KeyValue>( > > "languageDropDown", new PropertyModel<KeyValue>(this, "defaultValue"), > > keyValues, new ChoiceRenderer<KeyValue>("key", "value")); > > add(dropDownChoice); > > } > > public KeyValue getDefaultValue() { return defaultValue; } > > public void setDefaultValue(KeyValue defaultValue) { this.defaultValue = > > defaultValue; } > > } > > Thanks, Vimal. > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
