我想設置一個組合框,將顯示一個用戶名,但是當選擇將發送一個ID代替。如何在JFace ComboViewer中設置密鑰和值?
我已經設置了一個查詢我的Derby數據庫並返回一個包含UserNames和ID的多維數組的方法。
我做了一些研究,如何設置這個,發現了幾個帖子提示JFace,但沒有關於如何實現這一點。
我試過setData(String Key,Object Value)和add(String String,int index)。 我也看過DataBinding,但沒有找到任何能夠讓我工作的東西。
感謝,
更新---------------------- 我得到它的工作到一個點。 我認爲我已經正確設置了內容提供者,但是當我運行應用程序時,它會打印與列表中最後一項相同的所有標籤。
模型提供:
public enum ModelProvider {
INSTANCE;
public List<Animal> Animals;
public String conn = "L:\\Dropbox\\Herd_Management\\database";
private ModelProvider() {
Animals = new ArrayList<Animal>();
String strSQL = null;
strSQL = "SELECT Herd_ID FROM dbherd_management.TBLHERD";
String[] straHerd_IDs = CC_Derby.getResultArray(conn, "", "", strSQL);
for (int r = 0; r < straHerd_IDs.length; r++) {
Animals.add(new Animal(Integer.parseInt(straHerd_IDs[r])));
}
}
public List<Animal> getAnimals() {
return Animals;
}
}
摘錄的內容和標籤提供:
comboViewer_9 = new ComboViewer(shlHerdManagement, SWT.NONE);
final Combo cboAnimalTag = comboViewer_9.getCombo();
cboAnimalTag.setLayoutData(new GridData(SWT.FILL, SWT.FILL,
true, false, 1, 1));
cboAnimalTag.setText("<Select Animal Tag>");
comboViewer_9.setContentProvider(new ArrayContentProvider());
comboViewer_9.setInput(ModelProvider.INSTANCE.getAnimals());
comboViewer_9.setLabelProvider(new LabelProvider() {
@Override
public String getText(Object element) {
Animal a = (Animal) element;
return (a.getTag());
}
});
動物構造
public Animal(int intAnimal_ID) {
Connection conn = CC_Derby.createConnection("L:\\Dropbox\\Herd_Management\\database","","");
String strSQL = "SELECT * FROM dbherd_management.TBLHERD WHERE HERD_ID ="
+ intAnimal_ID;
try {
stmt = conn.createStatement();
ResultSet results = null;
results = stmt.executeQuery(strSQL);
while (results.next()) {
intHerd_id = results.getInt(1);
strHerd_Tag_Letter = results.getString(2);
intHerd_Tag_Num = results.getInt(3);
strHerd_Tag_Color = results.getString(4);
strHerd_Sex = results.getString(5);
strHerd_Type = results.getString(6);
dtHerd_Birthdate = results.getString(7);
intHerd_Sire = results.getInt(8);
intHerd_Dam = results.getInt(9);
intHerd_Owner = results.getInt(10);
strHerd_TimeStamp = results.getString(11);
strHerd_Status = results.getString(12);
dtHerd_Status_Date = results.getString(13);
}
results.close();
stmt.close();
CC_Derby.shutdown(stmt, conn);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
getTag方法
public String getTag(){
String strResult = null;
String l = null;
int n = 0;
String c = null;
l = getHerd_Tag_Letter();
n = getHerd_Tag_Num();
c = getHerd_Tag_Color();
if(l == null){
l ="";
}
if(c == null){
c = "";
}
strResult = l + n + " " + c;
return strResult;
}
查看器設置看起來不錯。從代碼中不清楚'getTag()'的價值。 – 2011-12-22 06:59:59
我添加了Animal Constructor和getTag()方法 – Talon06 2011-12-22 12:17:58
我在這裏沒有看到任何問題,對不起。我只能建議調試... – 2011-12-22 12:30:28