import java.awt.TextField; //導入方法依賴的package包/類

public void setupDBFields(String dbname) throws Exception

{

viewPane.setLayout(null);

Dimension dimView = sp.getSize();

int height = 0, width = 50;

viewPane.removeAll();

db = new DBF(dbname);

setTitle(dbname);

gb = new GridBagLayout();

gbc = new GridBagConstraints();

viewPane.setLayout(gb);

int i, j;

fldObjects = new Vector(db.getFieldCount());

for (i = 1; i <= db.getFieldCount(); i++)

{

j = i - 1;

f = db.getField(i);

if (f.isMemoField() || f.isPictureField()) {

b = new Button(db.getField(i).getName());

b.addActionListener(this);

addComponent(viewPane, b, 1, j, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);

fldObjects.addElement(b);

}

else if (f.getType() == 'L') {

c = new Checkbox(db.getField(i).getName(), true);

addComponent(viewPane, c, 1, j, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);

fldObjects.addElement(c);

}

else {

l = new Label(db.getField(i).getName(), Label.RIGHT);

addComponent(viewPane, l, 0, j, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);

int ln = f.getLength();

if (ln > 100) ln = 100;

t = new TextField(db.getField(i).getName(), ln);

if (width < ln*10) width=ln*10;

addComponent(viewPane, t, 1, j, ln, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);

fldObjects.addElement(t);

t.setEditable(true);

}

height += 10;

}

crl.setText("Record " + db.getCurrentRecordNumber());

trl.setText(" of " + db.getRecordCount());

SBrecpos.setMaximum(db.getRecordCount());

addComponent(viewPane, crl, 0, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);

addComponent(viewPane, trl, 1, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);

i++;

addComponent(viewPane, SBrecpos, 0, i, 2, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);

addComponent(viewPane, delCB, 2, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST );

i++;

addComponent(viewPane, Prev, 0, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);

addComponent(viewPane, Next, 1, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);

i++;

addComponent(viewPane, Add, 0, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);

addComponent(viewPane, Update, 1, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);

addComponent(viewPane, Clear, 2, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);

Prev.setEnabled(false);

prevRecord.setEnabled(false);

if (db.getRecordCount() == 0) {

Update.setEnabled(false);

updateRecord.setEnabled(false);

Next.setEnabled(false);

nextRecord.setEnabled(false);

}

dimView.setSize(width+150, height+150);

sp.setSize(dimView);

goTo(1);

}

總結

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