如何从jtable中连续勾选jcheckbox获取值 [英] how to get value from ticked jcheckbox in a row from jtable

问题描述

我有一个基于此代码的基于数据库值的3列和动态行的表以及最后一列中的jcheckbox：

I have a table with 3 column and dynamic row based from database value and a jcheckbox in last column based on this code :

  TableColumn tcolumn = tabel.getColumnModel().getColumn(2);
     tcolumn.setCellRenderer(tabel.getDefaultRenderer(Boolean.class));
       tcolumn.setCellEditor(tabel.getDefaultEditor(Boolean.class));

我的表格示例：

============================================
val 1 || val 2 || val 3 (checkbox) ||
============================================

from FB || from DB || checkbox           ||

from DB || from DB || checkbox           ||

===========================================     

我的问题很简单，如何从列中的勾选复选框中获取所有值1 2（价值3）？

My question is simple, how can I get all of the value 1 from the ticked checkbox in column 2 (value 3)?

我尝试了很多简单的代码，但仍然出错。

I tried many simple code but still got an error.

这是我的代码：

for (int row =0; row <= tabel.getSelectedRowCount(); row++) {
  Boolean b = ((Boolean) tblModel.getValueAt(row, 2));
     if (b.booleanValue()) {
       System.out.print(tblModel.getValueAt(row, 0)+" || ");
    }
  } 

推荐答案

这是不清楚你得到的错误或你得到的错误;我怀疑错误转换为 Boolean 。作为一般指导，默认渲染器和编辑器 Boolean.class 是 JCheckbox ;你不应该明确地设置它。如此处所示，请确保您遵循以下原则让您的演员阵容成功：

It's not clear what error you get or where you get it; I suspect an error casting to Boolean. As general guidance, the default renderer and editor for Boolean.class is a JCheckbox; you shouldn't have to set it explicitly. As shown here, ensure that you observe the following principles for your cast to succeed:

• 在 TableModel Boolean.class 类型的值c>。

• Insert values of type Boolean.class in your TableModel.

从 getColumnClass（）返回 Boolean.class 。

Return Boolean.class from getColumnClass() for the relevant column.

从 isCellEditable（）返回所需的值。

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