需要用户能够将“添加选项”添加到选择列表中
问题描述:
编辑将医疗手术事件添加到Google日历的表单。在表单上是一个(外科医生列表)选择框,它从index.php文件中提取选项值。我试图改变这种情况,让用户通过在文本框中输入名称然后单击“添加”按钮来将“外科医生”添加到该选择框列表中。需要用户能够将“添加选项”添加到选择列表中
我的解决方案是在“外科医生列表”选择框下添加一个文本字段和一个按钮。在名称中键入,然后单击提交按钮会将新的外科医生姓名写入XML文件。然后,我将“外科医生列表”选择框从XML文件中拉出它的选项值。
我能够创建输入框和按钮,将新的外科医生名称添加到XML文件,但现在我有两个提交按钮。当我尝试将新的外科医生姓名添加到XML文件时,它认为我已经完成了整个表单,并且正在尝试提交它。如何在不提交表单的情况下将新选项值发送到XML文件?任何信息表示赞赏。
这是当前选择框(不是从XML文件还拉)和我下面的XML添加现场...
<input type="hidden" name="action" value="<?php if($edit) echo 'edit';else echo 'insert';?>">
<input type="hidden" name="event_id" value="<?php if($edit) echo $event_data['id'];else echo '0';?>">
<div class="col-md-6 col-sm-6 col-xs-12">
<div class="form-group">
<label for="event_title">Surgeon Name <span class="required">*</span></label>
<select name="event_title" id="event_title" class="form-control required">
<option value="BERASI"> BERASI</option>
<option value="BERGHOFF"> BERGHOFF</option>
<option value="BIGGS"> BIGGS</option>
<option value="BORUS"> BORUS</option>
<option value="BURKE"> BURKE</option>
<option value="CANNONE"> CANNONE</option>
<option value="DEARBORN"> DEARBORN</option>
</select>
</div>
</div>
<div class="col-md-6 col-sm-6 col-xs-12">
<div class="form-group">
<form action="index.php" method="post">
<label for="surgeon" >Surgeon</label>
<input type="text" name="surgeon" class="btn btn-secondary"/>
<input type="submit" name="ok" value="add"/>
</div>
</div>
目前提交我的除了与冲突在窗体上按钮在这里...
<input type="hidden" name="action" value="<?php if($edit) echo 'edit';else echo 'insert';?>">
<input type="hidden" name="event_id" value="<?php if($edit) echo $event_data['id'];else echo '0';?>">
<div class="col-md-6 col-sm-6 col-xs-12">
<div class="form-group">
<label for="event_title">Surgeon Name <span class="required">*</span></label>
<select name="event_title" id="event_title" class="form-control required">
<option value="BERASI"> BERASI</option>
<option value="BERGHOFF"> BERGHOFF</option>
<option value="BIGGS"> BIGGS</option>
<option value="BORUS"> BORUS</option>
<option value="BURKE"> BURKE</option>
<option value="CANNONE"> CANNONE</option>
<option value="DEARBORN"> DEARBORN</option>
</select>
</div>
</div>
<div class="col-md-6 col-sm-6 col-xs-12">
<div class="form-group">
<form action="index.php" method="post">
<label for="surgeon" >Surgeon</label>
<input type="text" name="surgeon" class="btn btn-secondary"/>
<input type="submit" name="ok" value="add"/>
</div>
</div>
这里是我的窗体的图像... enter image description here
这里是摇摆JSC代码...
import java.awt.BorderLayout;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import java.net.URL;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.ComboBoxModel;
import javax.swing.JComboBox;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
public class MemComboBoxDemo extends JFrame {
protected MemComboBox urlComboBox = new MemComboBox();
public MemComboBoxDemo() {
super();
setSize(300, 100);
getContentPane().setLayout(new BorderLayout());
JPanel p = new JPanel();
p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
p.add(new JLabel("Address"));
urlComboBox.load("addresses.dat");
ComboBoxListener lst = new ComboBoxListener();
urlComboBox.addActionListener(lst);
MemComboAgent agent = new MemComboAgent(urlComboBox);
p.add(urlComboBox);
getContentPane().add(p, BorderLayout.NORTH);
WindowListener wndCloser = new WindowAdapter() {
public void windowClosing(WindowEvent e) {
urlComboBox.save("addresses.dat");
System.exit(0);
}
};
addWindowListener(wndCloser);
setVisible(true);
urlComboBox.grabFocus();
}
class ComboBoxListener implements ActionListener{
public void actionPerformed(ActionEvent evt) {
System.out.println(urlComboBox.getSelectedItem());
}
}
public static void main(String argv[]) {
new MemComboBoxDemo();
}
}
class MemComboAgent extends KeyAdapter {
protected JComboBox comboBox;
protected JTextField editor;
public MemComboAgent(JComboBox c) {
comboBox = c;
editor = (JTextField) c.getEditor().getEditorComponent();
editor.addKeyListener(this);
}
public void keyReleased(KeyEvent e) {
char ch = e.getKeyChar();
if (ch == KeyEvent.CHAR_UNDEFINED || Character.isISOControl(ch))
return;
int pos = editor.getCaretPosition();
String str = editor.getText();
if (str.length() == 0)
return;
for (int k = 0; k < comboBox.getItemCount(); k++) {
String item = comboBox.getItemAt(k).toString();
if (item.startsWith(str)) {
editor.setText(item);
editor.setCaretPosition(item.length());
editor.moveCaretPosition(pos);
break;
}
}
}
}
class MemComboBox extends JComboBox {
public static final int MAX_MEM_LEN = 30;
public MemComboBox() {
super();
setEditable(true);
}
public void add(String item) {
removeItem(item);
insertItemAt(item, 0);
setSelectedItem(item);
if (getItemCount() > MAX_MEM_LEN)
removeItemAt(getItemCount() - 1);
}
public void load(String fName) {
try {
if (getItemCount() > 0)
removeAllItems();
File f = new File(fName);
if (!f.exists())
return;
FileInputStream fStream = new FileInputStream(f);
ObjectInput stream = new ObjectInputStream(fStream);
Object obj = stream.readObject();
if (obj instanceof ComboBoxModel)
setModel((ComboBoxModel) obj);
stream.close();
fStream.close();
} catch (Exception e) {
System.err.println("Serialization error: " + e.toString());
}
}
public void save(String fName) {
try {
FileOutputStream fStream = new FileOutputStream(fName);
ObjectOutput stream = new ObjectOutputStream(fStream);
stream.writeObject(getModel());
stream.flush();
stream.close();
fStream.close();
} catch (Exception e) {
System.err.println("Serialization error: " + e.toString());
}
}
}
答
看起来Jquery在这种情况下会派上用场。你可以做简单的检查,当添加按钮,用户点击,你去取字段的当前值,使用Javascript/jQuery的,你把它添加到您的选择框:
<input type="text" class="addingElement">
<button class="addingButton">Add</button>
<select name="event_title" id="event_title" class="form-control required">
<option value="BERASI"> BERASI</option>
<option value="BERGHOFF"> BERGHOFF</option>
<option value="BIGGS"> BIGGS</option>
<option value="BORUS"> BORUS</option>
<option value="BURKE"> BURKE</option>
<option value="CANNONE"> CANNONE</option>
<option value="DEARBORN"> DEARBORN</option>
</select>
<script>
$(document).ready(function(){
$('.addingButton').on('click', function(){
var newElement = $('.addingElement').val();
$('#event_title').append('<option></option>').attr('value', newElement).html(newElement);
})
});
</script>
最简单的方法是如果用户添加了一个新的外科医生姓名,请将其作为提交操作的一部分(从此将其添加到框中),而不是试图在即时执行该操作。 –
你会碰到一个我能看到的例子吗?任何信息apprecaited! –