jtable

问题 I want to be able to have a JPanel in a cell with a JButton that does some work when clicked. I looked for howtos about Cell Editors, but all examples talk about replacing the cell with another component (e.g. replace an int with a JTextField etc.) My situation is a little different: I have the following ADT class MyClass { public String title; public String url; public String path; public int annotations; } I created a custom table cell model that has 1 column and the class for that column

问题 I want to be able to have a JPanel in a cell with a JButton that does some work when clicked. I looked for howtos about Cell Editors, but all examples talk about replacing the cell with another component (e.g. replace an int with a JTextField etc.) My situation is a little different: I have the following ADT class MyClass { public String title; public String url; public String path; public int annotations; } I created a custom table cell model that has 1 column and the class for that column

问题 Just want to connect panels by drawing a line b/w them. I am having two panels and both panels contains a Jtable.I want to connect each cell of jtable of one panel to another Jtable of another jpanel. Here i want to draw the lines like that i have highlighted by pink color circle. and this is the code snippet i am using to create jtables DefaultTableModel fcdbDataModel = new DefaultTableModel(fcdbIdTxnArray, fcdbIdTxnColumnArray); fcdbIdTxnJTable = new FieldMapperJTable(fcdbDataModel); here

问题 Hi I have successfully linked my jTable to JDBC database. However, I am having trouble retrieving them. I want the saved data to appear when I restart the program but it is not working. alarm.setText(""); DefaultTableModel model =(DefaultTableModel) hwList.getModel(); if(!className.getText().trim().equals("")) { model.addRow(new Object[]{className.getText(), homeWork.getText(), dueDate.getText()}); } else { alarm.setText("Class Name should not be blank."); } Connection conn; Statement st; try

问题 I need to populate a column in my JTable that computes a running total as is shown below. ID Name Position Salary Total === ====== ========== ======= ====== 1. Peter Programmer 40,000 40,000 2. Paul Manager 25,000 65,000 3. Mary Designer 25,000 90,000 I have 4 classes--one entity class for each employee, one table model class, one main class that extends JFrame to show the output, and one to format the numbers in the last two columns. Code is shown below. The problem I'm having is that the

问题 I'm trying to calculate running totals using JTable and Combo combination, sometime it calculate right but on random value selection I get wrong answer. Here is my code which I'm using to test running totals calculation, any help would be highly appreciated: import java.awt.Component; import java.awt.Font; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.awt.event.MouseEvent; import java

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 7 years ago . Need a simple Swing code to demonstrate how to add a button in a column of a Jtable using tablecellrenderer and tablecelleditor. 回答1: Add button to JTable JTable table = new JTable(new JTableModel()); JScrollPane

问题 I am curious as to how to call valueChanged overridden method only if a row in JTable has been double clicked. For now the below code snippet achieves one click action or event arrow key to navigate through a list of people and would adjust JLabel accordingly. What I'm trying to do is something similar just like I did for one click, but this time IF and ONLY IF a row has been double clicked dto would change else nothing happens. How do I do this :( class ListDataUI { public void

问题 I am curious as to how to call valueChanged overridden method only if a row in JTable has been double clicked. For now the below code snippet achieves one click action or event arrow key to navigate through a list of people and would adjust JLabel accordingly. What I'm trying to do is something similar just like I did for one click, but this time IF and ONLY IF a row has been double clicked dto would change else nothing happens. How do I do this :( class ListDataUI { public void

问题 How do you setup a JTable to be able to drag a row to a different index in the table. For example if I have 5 rows and I want to drag the 4th row to the 2nd position? 回答1: Check out the drag and drop section of the Java Tutorial. There are some examples on how to implement this for JTable . 回答2: The following allows JTable re-ordering of a single dragged row: table.setDragEnabled(true); table.setDropMode(DropMode.INSERT_ROWS); table.setTransferHandler(new TableRowTransferHandler(table)); Your