Thread: jTable event help

I have a jTable that I enable the user to sort based on which ever column they click on, I use .setAutoCreateRowSorter(true); I am also using netbeans and was wounder what event I can use on the table to determine when the user clicks on the column header to sort it. I have tried all of the mouse events and I am at a lost.

Any suggestions would be appeciated.

I tried

private void tblProjectsMouseClicked(java.awt.event.MouseEvent evt) {
// TODO add your handling code here:
System.out.print("Table headers were clicked");
}

when i click on the table itself, it works however not when i click on the table headers it doesn't. I have also tried all of the other mouse events and none of them seem to work

once i know what event to use i have the code working properly for a button.

Sorry I don't think I explained the situtation good enough. The font is rendered red if a there are not enough employees assigned to the project, render black when there is. This part is working, the problem is when a sort the table it renders the wrong indexes black and red. I have code set up to get the correct indexes, which work properly however the user has to click a button. Now i just having trouble determining which event to use to trigger the code so the user doesn't have to press the button. I realize now the first post doesn't give enough detail.

int[] resultCheck = new int[300];

resultCheck = CheckAssignedSingle(date, metadata, projects);

TableCellRenderer renderer = new CustomTableCellRenderer(intColTotal, resultCheck);
try {
tblProjects.setDefaultRenderer(Class.forName("java .lang.Object"), renderer);
} catch (ClassNotFoundException ex) {
this.dispose();
}

This code is in a method call loadProjects() which runs the query and sets the table with the data and renders each row correctly. I have this code also with the button, that I called jButton for now until I get it working. I need the event because when the user clicks on the headers for the table to sort the data wheather by project title or project number the font color doesn't sort with them. The index are saved in an array, so this is why they don't change., The event will just rerun the above code with the new indexes.

I got an event to work this is what I have


public frmSchedul() {


initComponents();



JTableHeader tblHeader = tblProjects.getTableHeader();
tblHeader.addMouseListener(new java.awt.event.MouseAdapter() {});

tblHeader.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
tblHeaderMouseClicked(evt);
}
});

}

private void tblHeaderMouseClicked(java.awt.event.MouseEvent evt){
System.out.println("The table header was clicked.");
}

Yes it solved. The render was based on position because the table would show how many people needed to be assigned to the project. The user could select multiple job function area. ex a administrator, data collector, so on. If all the employees were assigned accordingly that index was save into an array with the index of the row. The problem was when the user sorted the rows based on the column header. The index would not change so I just needed a listener to tell the trigger the code to run the method of checking the rows again. Now it works perfectly. All the rows were being rendered correctly before they were sorted now with the listener they are being rendered correctly when the user sorts them. My problem was I didn't know you could create a listener for the column headers.