trouble in hiding colum of jtable
i want to hide Jtable's column and its data but the point is data should remains in table model
or we can say we acces that data any where from this method.
table.getModel().getValueAt(...)
below is the code which i used to hide column from table.
table coulmn tb= priceTable.getColumn(priceTable.getColumnName(2));
TableColumnModel tcm= priceTable.getColumnModel();
tcm.removeColumn(tb);
but the problem is that this column data still show in table.column already hide.
what i do for it?
# 1
>i want to hide Jtable's column and its data
What you wanted to do is a lot trickier than you think..... don't remove the column, instead, set the width of the column to zero. This technique will effectively remove the column from display, but what you need to do is figure out how to navigate around the hidden column (and how to unhide the column, i.e., reset the column width to its original setting).
good luck!
V.V.
# 3
this is an excerpt from a program I wrote years ago:
public void setColWidth(int beg, int end, int width) {
int i,newWidth;
TableColumnModel TCM=getColumnModel();
if (width<0) {// size to fit
Rectangle rect;
TableCellRenderer renderer;
Component c;
Dimension size;
for (int col=beg;col<end;col++) {// hide columns
if (col>=getColumnCount()) continue;
newWidth=0;
for (int row=0;row<=maxRowUsed;row++) {
rect=getCellRect(row,col,false);
renderer=getCellRenderer(row,col);
c=renderer.getTableCellRendererComponent(this,getValueAt(row,col),true,true,row,col);
c.setBounds(rect);
size=c.getPreferredSize();
if (size.width>newWidth) newWidth=size.width;
}
if (newWidth>0) TCM.getColumn(col).setPreferredWidth(newWidth);
}
} else {// unhide columns
for (i=beg;i<end;i++) {
if (i>=getColumnCount()) return;
TCM.getColumn(i).setMinWidth(0);
TCM.getColumn(i).setPreferredWidth(width);
}
}
}
See if you can make use of it somehow.
V.V.
# 4
Don't set the width the column to zero.
Your approach is correct. All you need to do is remove the TableColumn from the TableColumnModel. Can't tell from your code why its not working. Here is a working example:
http://forum.java.sun.com/thread.jspa?forumID=57&threadID=743041&start=7
