如何隐藏DefaultTableModel中的一个特殊列，使其不在表中显示？

Question

I am using Java Swingx framework. I have 4 columns in my DefaultTableModel object. I wish to display only 3 of the columns. But, I need all four for computing.

Actual data model

S.No. | ID | GDC ID | Decsription

What I want to display in table

S.No.| GDC ID | Decsription

Is it possible to hide or omit only one column from rendering? Please guide me.

Answer 1

• by default minimum size is 10 pixels widht,

• you can to remove / add column from JTable view, column presents in the XxxTableModel , you can to hide and show any of column(s)

Answer 2

No need to adjust your model, or to try to make that column very small. JTable has built-in functionality for this: the removeColumn method. As stated in the javadoc of that method

Removes aColumn from this JTable's array of columns. Note: this method does not remove the column of data from the model; it just removes the TableColumn that was responsible for displaying it.

Also note the existence of the following methods:

• JTable#convertColumnIndexToModel
• JTable#convertColumnIndexToView

Since the column order and column count in the view (the JTable ) might be different from the one in the model you need those methods to switch between view and model

Answer 3

You can hide it by setting its width to 0.

_table.getColumn("ID").setPreferredWidth(0);
_table.getColumn("ID").setMinWidth(0);
_table.getColumn("ID").setWidth(0);
_table.getColumn("ID").setMaxWidth(0);

Answer 4

try this to remove a single column:

myTableModel = new DefaultTableModel();
myTableModel.setColumnIdentifiers(new Object[]{"S.No.", "ID", "GDC ID", "Decsription"});
JTable myTable = new JTable(myTableModel);

// remember to save the references
TableColumn myTableColumn0 = guiLoteryNumbersTable.getColumnModel().getColumn(0);
TableColumn myTableColumn1 = guiLoteryNumbersTable.getColumnModel().getColumn(1);
TableColumn myTableColumn2 = guiLoteryNumbersTable.getColumnModel().getColumn(2);
TableColumn myTableColumn3 = guiLoteryNumbersTable.getColumnModel().getColumn(3);

myTable.getColumnModel().removeColumn(myTableColumn1);

Then to show the column again keeping the order:

// 1- remove all the existent columns
myTable.getColumnModel().removeColumn(myTableColumn0);
myTable.getColumnModel().removeColumn(myTableColumn2);
myTable.getColumnModel().removeColumn(myTableColumn3);

// 2- add all the columns again in the right order
myTable.getColumnModel().addColumn(myTableColumn0);
myTable.getColumnModel().addColumn(myTableColumn1);
myTable.getColumnModel().addColumn(myTableColumn2);
myTable.getColumnModel().addColumn(myTableColumn3);

Sorry, but that's the best way I know.

Answer 5

You manipulate the getValueAt , getColumnCount to achieve this.

So for example the getColumnCount you give it as 3

and on getValueAt - to skip if the column index is above the skipped column

JTable will first call getColumnCount and getRowCount and fetch calling getValueAt for each of the cells.

NOTE: Ignore this and see link by trashgod below.