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Validate input with JTable

Posted on 2003-11-23
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Last Modified: 2007-12-19
Hi,

I would like to see an example on how to implement code (with Java version 1.3.1 ) to validate inputs with Table (instance of  defaultTableModel) and store afterward.  My JTable consists of the following columns - TextField, integer, ComboBox.  I can edit table cells.   I have two separated dialogs - (1) to add data to an empty JTable (2) to edit existing data in the JTable and to add new row(s).  

When working with the 1st and 2nd dialogs, adding new table entry-I want to validate my cells - ensure the text field can not excess 200 characters, integer(between 1 to 100), and comboBox(true, false).  

When working with 2nd dialog, I want to be able to detect changes to cells. All columns require to sort.

I will be fetching data from database.  Is defaultTableModel right approch?


Thanks!!
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Question by:fcwEx
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girionis earned 240 total points
ID: 9809249
> ensure the text field can not excess 200 characters,

  Just get the size of the string using the length() method.

> integer(between 1 to 100)

  Simply do:

  if (number >= 1 && number <= 100)

> and comboBox(true, false)

  Likewise above. Read the balue and check for true or false.

  if value read equals(true)...

> I want to be able to detect changes to cells.

http://javaalmanac.com/egs/javax.swing.table/AnchorEdit.html

> Is defaultTableModel right approch?

  Depends on your needs. You might need to extend it and write your own table model but for most cases the default table model is sufficient.
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