[英]JTable cell not editable but clickable
I want to put an action whenever someone clicks a cell. 我想在有人单击单元格时采取措施。 open another gui for example. 例如,打开另一个GUI。 But how do i make a cell clickable BUT not editable? 但是如何使单元格可点击但不可编辑? These are results for an sql query. 这些是sql查询的结果。 I can't manage to make the table uneditable though. 我无法使表格不可编辑。 Do I need a listener or something? 我需要听众吗? and if yes where should I put it? 如果是的话,我应该放在哪里?
Here is my code: 这是我的代码:
public class AllResultsFromDB extends JFrame
{
GUI ins = new GUI();
public AllResultsFromDB(GUI x)
{
Vector columnNames = new Vector();
Vector data = new Vector();
this.ins = x;
try
{
// Initializing GUI class in order to call getSelectedTable() method.
// GUI ins = new GUI();
//System.out.println(ins.getSelectedTable());
Login sgui = new Login();
String dburl = "jdbc:oracle:thin:@localhost:1521:ORCL";
Connection connection = DriverManager.getConnection( dburl, sgui.getUsername(), sgui.getPassword() );
// Fetch data from table specified by user
String query = "SELECT * FROM " + ins.getSelectedTable() + " ORDER BY id";
System.out.println(query);
Statement stmt = connection.createStatement();
ResultSet rset = stmt.executeQuery(query);
ResultSetMetaData metad = rset.getMetaData();
int columns = metad.getColumnCount();
// This loop gets the names of the columns
for (int i = 1; i <= columns; i++)
{
columnNames.addElement( metad.getColumnName(i) );
//columnNames.addElement("PROFILES");
}
// This loop gets the data inside the rows
while (rset.next())
{
Vector row = new Vector(columns);
//Vector b = new Vector((Collection)button);
for (int i = 1; i <= columns; i++)
{
row.addElement( rset.getObject(i) );
}
data.addElement( row );
//data.addElement(b);
}
rset.close();
stmt.close();
connection.close();
// Create table with results
JTable table = new JTable(data, columnNames)
{
public Class getColumnClass(int column)
{
for (int row = 0; row < getRowCount(); row++)
{
Object obj = getValueAt(row, column);
if (obj != null)
{
return obj.getClass();
}
}
return Object.class;
}
};
JScrollPane scroll = new JScrollPane( table );
getContentPane().add( scroll );
//table.addMouseListener(l);
//table.setEnabled(false);
//table.setDragEnabled(true);
JPanel panel = new JPanel();
getContentPane().add( panel, BorderLayout.SOUTH );
} catch (SQLException e) {
}
}
}
Start by taking a look at How to use tables 首先看一下如何使用表格
The isCellEditable
method the TableModel
determines of a cell is editable or not. TableModel
确定单元格的isCellEditable
方法是否可编辑。 This method should return false
此方法应返回false
When you supply column/data information to the JTable
directly, the JTable
creates a DefaultTableModel
internally. 当您直接向JTable
提供列/数据信息时, JTable
在内部创建一个DefaultTableModel
。 This class's isCellEditiable
method will return true
by default. 此类的isCellEditiable
方法默认情况下将返回true
。
By using something like DefaultTableModel
, you can override this method without with to much trouble and set the model to the table directly. 通过使用类似DefaultTableModel
东西,您可以毫不费力地覆盖此方法,并将模型直接设置为表。
Next, you need to attach a MouseListener
to the table 接下来,您需要将MouseListener
附加到表
Take a look at How to write a Mouse Listener 看看如何编写鼠标侦听器
You can then use getSelectedColumn , getSelectedRow to get the selected cell. 然后,您可以使用getSelectedColumn , getSelectedRow获取选定的单元格。
You'll also need to use convertRowIndexToModel and convertColumnIndexToModel to convert between the view and model indices 您还需要使用convertRowIndexToModel和convertColumnIndexToModel在视图索引和模型索引之间进行转换
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