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<TITLE>Setting Tool Tips on Cells in a JTable Component
(Java Developers Almanac Example)
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<h3>
e937.
Setting Tool Tips on Cells in a JTable Component</h3>
Unfortunately, there is no <code>setToolTipText()</code> method for cells in a
<code>JTable</code> component. For a cell to show a tool tip, the renderer
for that cell must set the tool tip text on the returned component.
See <a href="../javax.swing.table/CustRend.html" class="eglink"><font size="-1"><b>e927</b> Creating a Custom Cell Renderer in a JTable Component</font></a> for an example of a renderer
that sets a tool tip.
<P> If you cannot modify the renderer, you can override the table's
<code>prepareRenderer()</code> method and explicitly set the tool tip on the
returned component.
<pre>
// This table displays a tool tip text based on the string
// representation of the cell value
JTable table = new JTable() {
public Component prepareRenderer(TableCellRenderer renderer,
int rowIndex, int vColIndex) {
Component c = super.prepareRenderer(renderer, rowIndex, vColIndex);
if (c instanceof JComponent) {
JComponent jc = (JComponent)c;
jc.setToolTipText((String)getValueAt(rowIndex, vColIndex));
}
return c;
}
};
</pre>
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Related Examples
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e936. <a class="eglink" href="ColHeadTips.html?l=rel">
Setting Column Header Tool Tips in a JTable Components
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See also:
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Cells">
Cells
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Column%20Heads">
Column Heads
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<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Columns">
Columns
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<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Editing">
Editing
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<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Events">
Events
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<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Layout">
Layout
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<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Rows">
Rows
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<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Scrolling">
Scrolling
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Selection">
Selection
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Sorting">
Sorting
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Table%20Model">
Table Model
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