problem with jtable cell data

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2 total messages Started by Jacques Chaurette Mon, 10 Oct 2005 20:31

#380

Author: Jacques Chaurette
Date: Mon, 10 Oct 2005 20:31

83 lines
2811 bytes

I am having trouble getting reliable access to an individual cell content. 
The code for my jtable is like this:
class MyTableModel extends AbstractTableModel {
private String[] columnNames = {"Dia. (in)",
"Instal. Cost",
};
private Object[][] data = {
{"3", "25"},
{"4", "35"},
{"5", "40"},
{"6", "45"},
{"8", "50"}
};

public int getColumnCount() {
return columnNames.length;
}
public int getRowCount() {
return data.length;
}
public String getColumnName(int col) {
return columnNames[col];
}
public Object getValueAt(int row, int col) {
return data[row][col];
}

public Class getColumnClass(int c) {
return getValueAt(0, c).getClass();
}

public boolean isCellEditable(int row, int col) {
//Note that the data/cell address is constant,
//no matter where the cell appears onscreen.
//if (col < 2) {
//return false;
//} else {
return true;
//}
}

public void setValueAt(Object value, int row, int col) {
if (DEBUG) {
System.out.println("Setting value at " + row + "," + col
+ " to " + value
+ " (an instance of "
+ value.getClass() + ")");
}

data[row][col] = value;
fireTableCellUpdated(row, col);

if (DEBUG) {
System.out.println("New value of data:");
printDebugData();
}
}

private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount();

for (int i=0; i < numRows; i++) {
System.out.print(" row " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + data[j]);
}
System.out.println();
}
System.out.println("--------------------------");
}
}


When I edit a cell value in the table GUI, the change is not effective until 
another cell is selected. and I want to use this modified value somewhere 
else in the program. I cannot count on the user selecting another cell. How 
can I get the change to be instantly incorporated into the table model?

Any help appreciated.
Thanks.

Jacques

Re: problem with jtable cell data

#382

Author: Jacques Chaurette
Date: Tue, 11 Oct 2005 02:17

101 lines
3548 bytes

Found the solution on the internet, it seems that the celLEditor is still 
active and must be de-activated. AND IT WORKS
 public  void stopCellEditing() {
      TableCellEditor editor = jTable1.getCellEditor();
      if ( editor != null ) {
         editor.stopCellEditing();
      }
   }


Cheers,

Jacques

"Jacques Chaurette" <jacques.chaurette@sympatico.ca> wrote in message 
news:434acf22$1@newsgroups.borland.com...
>I am having trouble getting reliable access to an individual cell content. 
>The code for my jtable is like this:
> class MyTableModel extends AbstractTableModel {
> private String[] columnNames = {"Dia. (in)",
> "Instal. Cost",
> };
> private Object[][] data = {
> {"3", "25"},
> {"4", "35"},
> {"5", "40"},
> {"6", "45"},
> {"8", "50"}
> };
>
> public int getColumnCount() {
> return columnNames.length;
> }
> public int getRowCount() {
> return data.length;
> }
> public String getColumnName(int col) {
> return columnNames[col];
> }
> public Object getValueAt(int row, int col) {
> return data[row][col];
> }
>
> public Class getColumnClass(int c) {
> return getValueAt(0, c).getClass();
> }
>
> public boolean isCellEditable(int row, int col) {
> //Note that the data/cell address is constant,
> //no matter where the cell appears onscreen.
> //if (col < 2) {
> //return false;
> //} else {
> return true;
> //}
> }
>
> public void setValueAt(Object value, int row, int col) {
> if (DEBUG) {
> System.out.println("Setting value at " + row + "," + col
> + " to " + value
> + " (an instance of "
> + value.getClass() + ")");
> }
>
> data[row][col] = value;
> fireTableCellUpdated(row, col);
>
> if (DEBUG) {
> System.out.println("New value of data:");
> printDebugData();
> }
> }
>
> private void printDebugData() {
> int numRows = getRowCount();
> int numCols = getColumnCount();
>
> for (int i=0; i < numRows; i++) {
> System.out.print(" row " + i + ":");
> for (int j=0; j < numCols; j++) {
> System.out.print(" " + data[j]);
> }
> System.out.println();
> }
> System.out.println("--------------------------");
> }
> }
>
>
> When I edit a cell value in the table GUI, the change is not effective 
> until another cell is selected. and I want to use this modified value 
> somewhere else in the program. I cannot count on the user selecting 
> another cell. How can I get the change to be instantly incorporated into 
> the table model?
>
> Any help appreciated.
> Thanks.
>
> Jacques
>

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