How To Use Inbuilt Cell Editor of JTable
When I called function getCellEditor() function of JTable then NullPointerException is occured.
I am not to use my own CellEditor. where as I wana use inbuilt JTable CellEditor
PART of my Source Code:
DefaultCellEditor dce=(DefaultCellEditor) ((DefaultTableColumnModel)grid.getColumnModel()).getColumn(c).getCellEditor();
dce.getComponent().addFocusListener(new TextFocus(true));
first line gives NullPointerException
Please Help Me
If you help me, I will be very thankful to u...
[529 byte] By [
gajesha] at [2007-11-27 10:29:13]
# 1
SORRY! Error is in 2nd Line:-
My source fragment is:
class FrmTestReport {
private final byte RESULT=7;
private JTable grid;
public FrmTestReport() {
private final byte RESULT=7;//Breaker
grid = new javax.swing.JTable()
{
public JToolTip createToolTip()
{
return new JMultiLineToolTip();
}
};
grid.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
{null, null, null, null, null, null, null, null, null}
},
new String [] {
"S.No.", "TestID", "Test Name", "Low", "High", "Chg", "GroupID", "Result", "Remarks"
}
){
Class[] types = new Class [] {
java.lang.Short.class, java.lang.Long.class, java.lang.String.class, java.lang.Integer.class, java.lang.Integer.class, java.lang.Integer.class, java.lang.Long.class, java.lang.Integer.class, java.lang.String.class
};
boolean[] canEdit = new boolean [] {
false, false, false, false, false, false, false, true, true
};
public Class getColumnClass(int columnIndex) {
return types [columnIndex];
}
public boolean isCellEditable(int rowIndex, int columnIndex) {
return canEdit [columnIndex];
}
});
grid.setToolTipText("IF YOU ARE WORKING WITH TABLE:\n\n 1.<F2> \tTo edit cell\n 2.<Enter>\tTo move next row in same column \n 3.<Arrows>\tTo move arround cells in Table\n 4.<Tab>\tTo jump with cell\n 5.<Ctrl+Tab>\tTo transfer focus");
grid.setCellSelectionEnabled(true);
jScrollPane2.setViewportView(grid);
DefaultCellEditor dce=(DefaultCellEditor) ((DefaultTableColumnModel)grid.getColumnModel()).getColumn(RESULT).getCellEditor();
dce.getComponent().addFocusListener(new TextFocus(true));
}
}
