Misery with h:selectOneMenu. PLEASE HELP

[JSFJSF JSFJSF]

I am using MyFaces and I am getting an empty Dropdown with h:selectOneMenu. I have spent the whole day today trying to get this to work but with no success.... Please HELP!!!

I made sure I converted the department Id which is an int to a String for the SelectItem.

I have been reading/googling...some talk about Converters...Do I really need a converter? If so, why?

PLEASE HELP!!! THANKS MUCH

jsp:
<h:selectOneMenu id="dept" value="#{AccountBean.department}"> <f:selectItems value="#{AccountBean.valuesForDropDown}" />
</h:selectOneMenu>

MANAGED BEAN:

public SelectItem[] getValuesForDropDown() {

Department[] departments = null;

try {
departments = staticContentDAO.getDepartmentsBySiteId(1);
}
catch (WebApplicationException fe) {
fe.printStackTrace();
//Log exception
// Bubble it up as a runtime exception
// send email alert with the stack trace
// send pager alert
}

SelectItem[] valuesForDropDown = new SelectItem[departments.length];

for (int i=0; i <= valuesForDropDown.length; i++) {
valuesForDropDown[i] = new SelectItem(new Integer(departments[i].getDepartmentId()).toString(), departments[i].getDepartmentName());
}
return valuesForDropDown;
}


Department.java
-------------------

private int departmentId;

private String departmentName;

/**
* This method returns the userInfo
* @return
*/
public String getDepartmentName() {
return departmentName;
}

/**
* This method returns userName
* @return
*/
public int getDepartmentId() {
return departmentId;
}

/**
* This method sets the userName
* @param userName
*/
public void setDepartmentName(String departmentName) {
this.departmentName = departmentName;
}


/**
* This method sets the password
* @param password
*/
public void setDepartmentId(int departmentId) {
this.departmentId = departmentId;

}

[Mark Spritzler]

"JSFJSF JSFJSF"

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Thanks

Mark

[Mark Spritzler]

My question would be is how does JSF know what a SelectItem[] objects are and how to display them. That is what I believe is what a converter will give you, it will convert a SelectItem object into a String.

Or does JSF, by defualt, in these cases always call the toString() method.

Mark

[A Saari]

I used an ArrayList of Objects (ProjectsListItem) that extend SelectItem

public class ProjectsListItem extends javax.faces.model.SelectItem implements java.io.Serializable {

private String projID;
private String projName;

/** Creates a new instance of ProjectsListItem */
public ProjectsListItem() {
}

public ProjectsListItem(String myID, String myStr) {
super(myID,myStr);
}

public String getProjID() { return projID; }
public String getProjName() { return projName; }

public void setProjID(String s) { projID = s; }
public void setProjName(String s) { projName = s; }

}

Then in the managed bean

public synchronized java.util.ArrayList getProjectNames() throws SQLException, Exception {
�get the data in a resultset �
projectsList = new java.util.ArrayList();
while( rs.next() ) {
Integer myInt = new Integer(rs.getInt("projectid"));
// Store the projectid as a STRING - if you don't the decode() method
// called to process the response from the browser will not know
// how to convert the value and you'll throw a validation error
ProjectsListItem myObject = new ProjectsListItem(new String(myInt.toString()),rs.getString("projectname").trim());
projectsList.add(myObject);
}
return projectsList;


Hope this helps...

Amy

[madhuri madhuri]

I do not find any mistake in the code. Just check and see if you are getting data from the DB or not.

for (int i=0; i <= valuesForDropDown.length; i++) {
valuesForDropDown[i] = new SelectItem(new Integer(departments[i].getDepartmentId()).toString(), departments[i].getDepartmentName());
}

There is no need to convert departments[i].getDepartmentId() into String. I never converted it to String.

[Tim Holloway]

Originally posted by madhuri madhuri:


There is no need to convert departments[i].getDepartmentId() into String. I never converted it to String.

Usually the BeanUtils subsystem can handle String conversions automatically. It's when you want an off-standard conversion (such as Oracle Date string format to Date Object) that you have to worry about such things.