How can I change jtable height at runtime
- by wniroshan
I hava a JFrame with multiple JPanels of similar width aligned one below other. I use one of these JPanels to display a JTable which is the last JPanel of the lot. This JPanel has a JScrollpane as a child component. This is where I try to add my table dynamically. Initial height of this JScrollpane is set to 40.
I designed above template using Netbeans 6.8
Now I'm trying to add the table to the JPanel. When a button is pressed below code snippet is called. The class which includes this code extends javax.swing.JFrame class.
I am expecting below code would adjust table height according to the row count and display the table.
SearchTable = new JTable(RowData, DisplayNames) {
@Override
public boolean isCellEditable(int rowIndex, int vColIndex) {
return false;
}
};
// if row count is less than 10 then display all the rows without a scroll bar
if (SearchTable.getRowCount() < 10) {
pnl_tblpanel.setPreferredSize(new Dimension(625, SearchTable.getRowHeight() * (SearchTable.getRowCount() + 4)));
scr_tblholder.setPreferredSize(new Dimension(625, SearchTable.getRowHeight() * (SearchTable.getRowCount() + 4)));
} else {// if row count is more than 10 display first 10 rows and add a scroll bar
pnl_tblpanel.setPreferredSize(new Dimension(625, SearchTable.getRowHeight() * (10 + 2)));
scr_tblholder.setAutoscrolls(true);
}
//pnl_tblpanel.add(scr_tblholder);
scr_tblholder.setViewportView(SearchTable);
//pnl_tblpanel.repaint();
pnl_tblpanel.validate();
this.validate();
//this.repaint();
pnl_tblpanel.setVisible(true);
this.pack();
The table displays, but the table height is not changed according to the row count. It stays its default value. I have been trying many combinations of validate and repaint but nothing worked. (More in desperation)
Can anyone shed some light on this
Thank you
