java 如何隐藏 DefaultTableModel 中的特定列而不显示在表中？
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How to hide a particlar column in DefaultTableModel from displaying it in table?
提问by brainless
I am using Java Swingx framework. I have 4 columns in my DefaultTableModelobject. I wish to display only 3 of the columns. But, I need all four for computing.
我正在使用 Java Swingx 框架。我的DefaultTableModel对象中有 4 列。我希望只显示 3 列。但是，我需要所有四个来计算。
Actual data model
实际数据模型
S.No. | ID | GDC ID | Decsription
S.No. | ID | GDC ID | Decsription
What I want to display in table
我想在表格中显示什么
S.No.| GDC ID | Decsription
S.No.| GDC ID | Decsription
Is it possible to hide or omit only one column from rendering? Please guide me.
是否可以在渲染中仅隐藏或省略一列？请指导我。
回答by mKorbel
by default minimum size is
10 pixelswidht,you can to remove / add column from JTable view, column presents in the XxxTableModel, you can to hide and show any of column(s)
默认最小尺寸为
10 pixels宽，您可以从 JTable 视图中删除/添加列，列出现在 XxxTableModel 中，您可以隐藏和显示任何列
回答by Robin
No need to adjust your model, or to try to make that column very small. JTablehas built-in functionality for this: the removeColumnmethod. As stated in the javadoc of that method
无需调整您的模型，也无需尝试将该列变得非常小。JTable为此具有内置功能：removeColumn方法。如该方法的javadoc所述
Removes aColumn from this JTable's array of columns. Note: this method does not remove the column of data from the model; it just removes the TableColumn that was responsible for displaying it.
从此 JTable 的列数组中删除 aColumn。注意：此方法不会从模型中删除数据列；它只是删除了负责显示它的 TableColumn。
Also note the existence of the following methods:
还要注意以下方法的存在：
Since the column order and column count in the view (the JTable) might be different from the one in the model you need those methods to switch between view and model
由于视图 (the JTable) 中的列顺序和列数可能与模型中的不同，因此您需要这些方法在视图和模型之间切换
回答by Dan D.
You can hide it by setting its width to 0.
您可以通过将其宽度设置为 0 来隐藏它。
_table.getColumn("ID").setPreferredWidth(0);
_table.getColumn("ID").setMinWidth(0);
_table.getColumn("ID").setWidth(0);
_table.getColumn("ID").setMaxWidth(0);
回答by august0490
try this to remove a single column:
试试这个来删除单列：
myTableModel = new DefaultTableModel();
myTableModel.setColumnIdentifiers(new Object[]{"S.No.", "ID", "GDC ID", "Decsription"});
JTable myTable = new JTable(myTableModel);
// remember to save the references
TableColumn myTableColumn0 = guiLoteryNumbersTable.getColumnModel().getColumn(0);
TableColumn myTableColumn1 = guiLoteryNumbersTable.getColumnModel().getColumn(1);
TableColumn myTableColumn2 = guiLoteryNumbersTable.getColumnModel().getColumn(2);
TableColumn myTableColumn3 = guiLoteryNumbersTable.getColumnModel().getColumn(3);
myTable.getColumnModel().removeColumn(myTableColumn1);
Then to show the column again keeping the order:
然后再次显示该列，保持顺序：
// 1- remove all the existent columns
myTable.getColumnModel().removeColumn(myTableColumn0);
myTable.getColumnModel().removeColumn(myTableColumn2);
myTable.getColumnModel().removeColumn(myTableColumn3);
// 2- add all the columns again in the right order
myTable.getColumnModel().addColumn(myTableColumn0);
myTable.getColumnModel().addColumn(myTableColumn1);
myTable.getColumnModel().addColumn(myTableColumn2);
myTable.getColumnModel().addColumn(myTableColumn3);
Sorry, but that's the best way I know.
对不起，但这是我所知道的最好的方式。
回答by Sid Malani
You manipulate the getValueAt , getColumnCount to achieve this.
您可以操作 getValueAt 、 getColumnCount 来实现这一点。
So for example the getColumnCount you give it as 3
因此，例如您给它的 getColumnCount 为 3
and on getValueAt - to skip if the column index is above the skipped column
并在 getValueAt - 如果列索引高于跳过的列，则跳过
JTable will first call getColumnCount and getRowCount and fetch calling getValueAt for each of the cells.
JTable 将首先调用 getColumnCount 和 getRowCount 并为每个单元格调用 getValueAt 获取。
NOTE: Ignore this and see link by trashgod below.
注意：忽略这一点并查看下面垃圾神的链接。
