I am new to java and i want to delete records. I have dynamically n records with following code. I am getting records from following code.
ResultSet rs = stmt.executeQuery( "SELECT * FROM crud_records order by id desc" );
while ( rs.next() ) {
int id = rs.getInt("id");
String idStr = Integer.toString(id);
String username = rs.getString("username");
String email = rs.getString("email");
String password = rs.getString("password");
String dateAdded = rs.getString("dateAdded");
listingFrame.add(new JLabel(idStr));
listingFrame.add(new JLabel(username));
listingFrame.add(new JLabel(email));
listingFrame.add(new JLabel(password));
listingFrame.add(new JLabel(dateAdded));
delBtn.addActionListener(b2);
listingFrame.add(new JButton("Delete"));
}
In this loop i want to create delete button for each records and i have added action listener to it. so what i want here
when user will click on delete button, i want to get specific record id/identification so that i can delete record.
I want to manage it dynamically means
Thanks in advance for your precious time.
That could look like :
ResultSet rs = stmt.executeQuery( "SELECT * FROM crud_records order by id desc" );
while ( rs.next() ) {
int id = rs.getInt("id");
String idStr = Integer.toString(id);
String username = rs.getString("username");
String email = rs.getString("email");
String password = rs.getString("password");
String dateAdded = rs.getString("dateAdded");
listingFrame.add(new JLabel(idStr));
listingFrame.add(new JLabel(username));
listingFrame.add(new JLabel(email));
listingFrame.add(new JLabel(password));
listingFrame.add(new JLabel(dateAdded));
JButton specificDeleteBtn = new JButton("Delete "+idStr);
specificDeleteBtn.setActinCommand(idStr);
specificDeleteBtn.setActionListener(this);
listingFrame.add(specificDeleteBtn);
}
...
void actionPerformed(ActionEvent e) {
String idStr = e.getActionCommand();
// then you have the idStr of the item you want to remove...
}
The basic idea is to set some property in the button that will be available to the click handler. I used the basic action command construction, but you can also use an Action
subclass (see setAction
)
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