Validation of JTextField to accept negative and positive values

Hi,
I have a question. I have a jTable populated with the fieldname
in the first column and datatype in the second column.
I would like to place a JTextField component in the frame
depending on the data type. So, if a row is selected in the table, the
datatype of that fieldname is retrieved and depending on that data type
I want a JTextField to be displayed.
Now, if the data type is of Integer type, I want the JTextfield to
accepts Integers only(positive). I have created a class that extends JTextfield.
But, I want the text field to accept negative integers also. Can anyone please guide me ?

Hi,
I wrote an extension of JTable that provides better rendering and editing support for:
Color
Font
Locale
Integer
int
Long
long
Short
short
Byte
byte
BigInteger
Double
double
Float
float
BigDecimal
and some more
To allow only positive values for the type integer you could use:
JXTable myTable = new JXTable(...);
myTable.setDefaultEditor(Integer.class, new IntegerCellEditor(0, Integer.MAX_VALUE, <some locale>));The number editors are based on JFormattedTextField.
http://softsmithy.sourceforge.net/lib/docs/api/org/softsmithy/lib/swing/JXTable.html
http://softsmithy.sourceforge.net/lib/docs/api/org/softsmithy/lib/swing/IntegerCellEditor.html
Homepage:
http://www.softsmithy.org
Download:
http://sourceforge.net/project/showfiles.php?group_id=64833
Source:
http://sourceforge.net/cvs/?group_id=64833
For more information about the number fields have a look at he following thread:
http://forum.java.sun.com/thread.jspa?threadID=718662
-Puce

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import java.awt.Toolkit;
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import javax.swing.JButton;
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I created a World File whose contents are:
5000
0
0
-5000
-1697500
2697500
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Columns, Rows = 680, 810
Number of Bands = 1
Cellsize = 5000,5000
Extent Top = 2700000
Extent Left = -1700000
Extent Right = 1700000
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Hi,
I just did some test. The results you got actually was right. The point (-19.4833, 64.6833, 0) you give is in 8307. After it is transformed into coordinate system 3035, the system your georaster in. We get the model coordinates (2954416.89, 4914665.16, 0). The model coordinate of your up-left corner cell of your georaster is (-1697500, 2697500), so the cell coordinates of the give point is col = int((2954416.89 - (-1697500))/5000) = int(930.38) = 930, and row = int((4914665.16 - 2697500)/(-5000)) = int(-443.43) = -430. That is what you got. The point you give is outside of your georaster on the top.
SQL> select sdo_cs.transform(
sdo_geometry(2001, 8307, SDO_POINT_TYPE(-19.4833, 64.6833, 0), null,null),
3035) from dual; 2 3
SDO_CS.TRANSFORM(SDO_GEOMETRY(2001,8307,SDO_POINT_TYPE(-19.4833,64.6833,0),NULL,
SDO_GEOMETRY(2001, 3035, SDO_POINT_TYPE(2954416.89, 4914665.16, 0), NULL, NULL)
For point (1700000,2700000,null), it is at the top-right corner. Its cell coordinates should be (0,680). Be noticed, the cell coordinates has order of ROW, COLUMN.
Please let me know if you have further question.

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Hi,
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Thanks
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I may guarantee that the cell contains a standard minus symbol.
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Validation of JTextField to accept negative and positive values

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