JTable滚动到指定的行索引 [英] JTable Scrolling to a Specified Row Index

问题描述

我有一个位于 JScrollPane中的JTable。根据我的应用程序中发生的事件，在运行时将行添加到表中。当一个新行被添加到表中时，我想让scoll窗格滚动到表格底部。

I have a JTable that is within a JScrollPane. Rows are added to the table at runtime based on events that happen in my application. I want to have the scoll pane scroll to the bottom of the table when a new row is added to the table.

对于JLists有 [ensureIndexIsVisible] [1]（）强制列表中的特定索引可见。我正在寻找相同的东西，但对于JTable。看起来我可能需要手动移动滚动窗格上的滚动视图，但我认为必须有一种更简单的方法。

For JLists There is the [ensureIndexIsVisible][1]() that forces a particular index in the list to be visible. I'm looking for the same thing but for a JTable. It looks like I might have to manually move the scrolling view on the scroll pane but I figured there had to be an easier way.

推荐答案

请参阅此示例： http://www.exampledepot.com/egs /javax.swing.table/Vis.html

更新：链接现已过时，这里是代码（来自 http：// smi-protege。 stanford.edu/repos/protege/protege-core/trunk/src/edu/stanford/smi/protege/util/ComponentUtilities.java ）

update: the link is now obsolete, here is the code (from http://smi-protege.stanford.edu/repos/protege/protege-core/trunk/src/edu/stanford/smi/protege/util/ComponentUtilities.java )

public static void scrollToVisible(JTable table, int rowIndex, int vColIndex) {
        if (!(table.getParent() instanceof JViewport)) {
            return;
        }
        JViewport viewport = (JViewport)table.getParent();

        // This rectangle is relative to the table where the
        // northwest corner of cell (0,0) is always (0,0).
        Rectangle rect = table.getCellRect(rowIndex, vColIndex, true);

        // The location of the viewport relative to the table
        Point pt = viewport.getViewPosition();

        // Translate the cell location so that it is relative
        // to the view, assuming the northwest corner of the
        // view is (0,0)
        rect.setLocation(rect.x-pt.x, rect.y-pt.y);

        table.scrollRectToVisible(rect);

        // Scroll the area into view
        //viewport.scrollRectToVisible(rect);
    }

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