defaulttablemodel

Java:Removing all the rows of DefaultTableModel

由 自闭症网瘾萝莉.ら 提交于 2019-11-26 19:06:10
I want to delete all the rows of DefaultTable.I found two common ways to delete them on internet but none of them works in my case because those methods does not exist in my DefaultTableModel .I wonder why :S .My code for using DefaultTableModel is DefaultTableModel Table = (DefaultTableModel) Table.getModel(); One way to delete is Table.removeRow(Table.getRowCount() - 1); but this removerow method does not exist in my DefaultTableModel. Please help me out. mKorbel Why complicating simple things, but removes must be iterative, if (myTableModel.getRowCount() > 0) { for (int i = myTableModel

Add column to exiting TableModel

由 落爺英雄遲暮 提交于 2019-11-26 16:58:54
问题 I have a class; public class A extends AbstractTableModel { ... } Using ResultSetMetaData I build the TableModel to match my result set from the database. public class B extends JPanel { ... } In class B where I extends JPanel and added class A to show my table. I want to be able to add new columns base on a condition to the table model. I have tried googling around but most example shown are based on the DefaultTableModel not AbstractTableModel . Do anyone know how to achieve this? 回答1: Just

Last row always removed from DefaultTableModel, regardless of index

由 限于喜欢 提交于 2019-11-26 16:48:08
I face some problems when I am trying to remove rows from a table in java. In particular, I use the DefaultTableModel , and when I am trying to remove a row, using the removeRow(int row) method, the last row is removed, regardless what the row is. For example, let's say that we have six rows. When the removeRow(0) or removeRow(2) or removeRow(5) is called, the last row is always removed. Any idea, why this is happening? Thanks ---update When a particular cell of the jtable is pressed, the corresponding row should be removed. class TagsTableMA extends MouseAdapter { @Override public void

Populating jTable using database data

由 匆匆过客 提交于 2019-11-26 10:04:01
问题 I am trying to populate a Netbeans GUI-builder jTable using my Derby database data. I am using the following code, in my Account.java class: public DefaultTableModel getData() { try { String stmt = \"SELECT * FROM APP.DATAVAULT\"; PreparedStatement ps = Main.getPreparedStatement(stmt); ResultSet rs = ps.executeQuery(); ResultSetMetaData md = rs.getMetaData(); int columnCount = md.getColumnCount(); Vector columns = new Vector(columnCount); //store column names for (int i = 1; i <= columnCount;

Java:Removing all the rows of DefaultTableModel

由 浪尽此生 提交于 2019-11-26 06:48:02
问题 I want to delete all the rows of DefaultTable.I found two common ways to delete them on internet but none of them works in my case because those methods does not exist in my DefaultTableModel .I wonder why :S .My code for using DefaultTableModel is DefaultTableModel Table = (DefaultTableModel) Table.getModel(); One way to delete is Table.removeRow(Table.getRowCount() - 1); but this removerow method does not exist in my DefaultTableModel. Please help me out. 回答1: Why complicating simple things

Last row always removed from DefaultTableModel, regardless of index

由 柔情痞子 提交于 2019-11-26 04:56:30
问题 I face some problems when I am trying to remove rows from a table in java. In particular, I use the DefaultTableModel , and when I am trying to remove a row, using the removeRow(int row) method, the last row is removed, regardless what the row is. For example, let\'s say that we have six rows. When the removeRow(0) or removeRow(2) or removeRow(5) is called, the last row is always removed. Any idea, why this is happening? Thanks ---update When a particular cell of the jtable is pressed, the

Most simple code to populate JTable from ResultSet

由 北城余情 提交于 2019-11-26 00:16:45
问题 I googled the whole day and no luck. I call getnPrintAllData() method after pressing OK button. So the code is: public class DatabaseSQLiteConnection { Connection conn = null; PreparedStatement statement = null; ResultSet res = null; public DatabaseSQLiteConnection(){ try{ Class.forName(\"org.sqlite.JDBC\"); conn = DriverManager.getConnection(\"jdbc:sqlite:test.sqlite\"); statement = conn.prepareStatement(\"SELECT * from product_info;\"); } catch(Exception e){ e.printStackTrace(); } } public
订阅 defaulttablemodel