CODEWITHSUNDEEP
javaswingjtablejcomboboxtablecelleditor
Khel Bides
Khel Bides

Reputation: 11

Selection Listener for ComboBox in JTable

Below is the picture of my table. Columns Unit and Description have ComboBox editors. I have added an item listener for the Description column that when I select a different item, the items for Unit column will also be changed.

My problem is there are instances that for other rows of the table, it will have a different description. And the Unit column for that row will also have different items compared to the previous row.

How can I populate the ComboBox for Column A when ComboBox for Column B is changed, for that row only?

enter image description here

Upvotes: 1

Views: 726

Answers (1)

MadProgrammer
MadProgrammer

Reputation: 347184

Start by having a look at Concepts: Editors and Renderers and Using Other Editors

The general answer is, you need two editors, when TableCellEditor#getTableCellEditorComponent is called, you would use the JTable reference and the row/column properties to look up the current value of column B and update the values of editor you return via the method

Now, if you want to change the value of column A based on changes to column B, you would need to look at the TableModel#setValueAt method, which will be called when the values are changed for any cell and modify A based on the current value of B

Upvotes: 2

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