Hiding columns in JTable

[keiyia jackson]

How do you hide more than one column and make it/them return when you want???

[Meghna ks]

TableColumn column1 = null;
column1 = JTable1.getColumnModel().getColumn(no. of the col you want to hide);
column1.setMaxWidth(0);
column1.setMinWidth(0);
column1.setWidth(0);
column1.setPreferredWidth(0);
Hi keiyia .. You could try this code to hide the column you want.
To unhide them, you could try the same code & set the max, min, width & preferredwidths to the required dimension in the condition you want the columns to show.
for eg;
TableColumn column1 = null;
column1 = JTable1.getColumnModel().getColumn(no. of the col you want to hide);
column1.setMaxWidth(100);
column1.setMinWidth(10);
column1.setWidth(100);
column1.setPreferredWidth(100);
Thanks
Meghna

[keiyia jackson]

i have the capability of hiding them, but just can't get them back.
ok, here's the situation:
i have a split pane witha table on one side. on the menubar is a view option. it has 4 checkbox menuitems. i need for the the appearance to change everytime an item is selested or deselected. if selected, it needs to be hidden (which i already had). if deselcted, return as to original state (which i can't get to worked).

[Javaoops]

Try out !!!
To hide a Column<Column No>

getColumnModel().getColumn(<Column No>).setMaxWidth(0);
getColumnModel().getColumn(<Column No>).setMinWidth(0);
getColumnModel().getColumn(<Column No>).setWidth(0);
getColumnModel().getColumn(<Column No>).setPreferredWidth(0);
sizeColumnsToFit(-1);

To enable the Column (i.e width =100)<Column No>

getColumnModel().getColumn(<Column No>).setMaxWidth(width);
getColumnModel().getColumn(<Column No>).setMinWidth(10);
getColumnModel().getColumn(<Column No>).setWidth(width);
getColumnModel().getColumn(<Column No>).setPreferredWidth(width);
sizeColumnsToFit(-1);

write the code in selection of the menu.
Onselection use enable code.
Deselection use hide code.
This code works for me.

[Javaoops]

Whether width = 0 or required size

getColumnModel().getColumn(no. of the col you want to hide).setMaxWidth(width);
getColumnModel().getColumn(no. of the col you want to hide).setMinWidth(width);
getColumnModel().getColumn(no. of the col you want to hide).setWidth(width);
getColumnModel().getColumn(no. of the col you want to hide).setPreferredWidth(width);
getColumnModel().getColumn(no. of the col you want to hide).setPreferredWidth(width);
sizeColumnsToFit(-1);

[Javaoops]

Whether width = 0 or required size

getColumnModel().getColumn(no. of the col you want to hide).setMaxWidth(width);
getColumnModel().getColumn(no. of the col you want to hide).setMinWidth(10);
getColumnModel().getColumn(no. of the col you want to hide).setWidth(width);
getColumnModel().getColumn(no. of the col you want to hide).setPreferredWidth(width)
;sizeColumnsToFit(-1);

[Paul Stevens]

This is another way of doing it. Sets the 1st column to invisible.
DefaultTableColumnModel columnModel = new DefaultTableColumnModel() {
public void addColumn(TableColumn tc) {
boolean first = true;
if (first) {
first = false;
return;
}
super.addColumn(tc);
}
};
table.setColumnModel(columnModel);