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POHow can I change jtable height at runtime
 

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  1. POHow can I change jtable height at runtime
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    <p>I hava a JFrame with multiple JPanels of similar width aligned one below other. I use one of these JPanels to display a JTable which is the last JPanel of the lot. This JPanel has a JScrollpane as a child component. This is where I try to add my table dynamically. Initial height of this JScrollpane is set to 40.</p> <p>I designed above template using Netbeans 6.8</p> <p>Now I'm trying to add the table to the JPanel. When a button is pressed below code snippet is called. The class which includes this code extends javax.swing.JFrame class.</p> <p>I am expecting below code would adjust table height according to the row count and display the table.</p> <pre><code>SearchTable = new JTable(RowData, DisplayNames) { @Override public boolean isCellEditable(int rowIndex, int vColIndex) { return false; } }; // if row count is less than 10 then display all the rows without a scroll bar if (SearchTable.getRowCount() &lt; 10) { pnl_tblpanel.setPreferredSize(new Dimension(625, SearchTable.getRowHeight() * (SearchTable.getRowCount() + 4))); scr_tblholder.setPreferredSize(new Dimension(625, SearchTable.getRowHeight() * (SearchTable.getRowCount() + 4))); } else {// if row count is more than 10 display first 10 rows and add a scroll bar pnl_tblpanel.setPreferredSize(new Dimension(625, SearchTable.getRowHeight() * (10 + 2))); scr_tblholder.setAutoscrolls(true); } //pnl_tblpanel.add(scr_tblholder); scr_tblholder.setViewportView(SearchTable); //pnl_tblpanel.repaint(); pnl_tblpanel.validate(); this.validate(); //this.repaint(); pnl_tblpanel.setVisible(true); this.pack(); </code></pre> <p>The table displays, but the table height is not changed according to the row count. It stays its default value. I have been trying many combinations of validate and repaint but nothing worked. (More in desperation)</p> <p>Can anyone shed some light on this Thank you</p>
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    1. USNiroshan
    1. USNiroshan
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    1. This table or related slice is empty.
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    2. PO
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    1. This table or related slice is empty.
    1. COWhat kind of layout manager are your components in? Just because you set the preferred size does not mean the layout manager needs to honor it.
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      1. POHow can I change jtable height at runtime
      1. USJeff Storey
 

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