public void FitTableColumns(JTable myTable) { //設置table的列寬隨內容調整
JTableHeader header = myTable.getTableHeader();
int rowCount = myTable.getRowCount();
Enumeration columns = myTable.getColumnModel().getColumns();
while (columns.hasMoreElements()) {
TableColumn column = (TableColumn) columns.nextElement();
int col = header.getColumnModel().getColumnIndex(
column.getIdentifier());
int width = (int) myTable.getTableHeader().getDefaultRenderer()
.getTableCellRendererComponent(myTable,
column.getIdentifier(), false, false, -1, col)
.getPreferredSize().getWidth();
for (int row = 0; row < rowCount; row++) {
int preferedWidth = (int) myTable.getCellRenderer(row, col)
.getTableCellRendererComponent(myTable,
myTable.getValueAt(row, col), false, false,
row, col).getPreferredSize().getWidth();
width = Math.max(width, preferedWidth);
}
header.setResizingColumn(column);
column.setWidth(width + myTable.getIntercellSpacing().width);
}
}
JTableHeader header = myTable.getTableHeader();
int rowCount = myTable.getRowCount();
Enumeration columns = myTable.getColumnModel().getColumns();
while (columns.hasMoreElements()) {
TableColumn column = (TableColumn) columns.nextElement();
int col = header.getColumnModel().getColumnIndex(
column.getIdentifier());
int width = (int) myTable.getTableHeader().getDefaultRenderer()
.getTableCellRendererComponent(myTable,
column.getIdentifier(), false, false, -1, col)
.getPreferredSize().getWidth();
for (int row = 0; row < rowCount; row++) {
int preferedWidth = (int) myTable.getCellRenderer(row, col)
.getTableCellRendererComponent(myTable,
myTable.getValueAt(row, col), false, false,
row, col).getPreferredSize().getWidth();
width = Math.max(width, preferedWidth);
}
header.setResizingColumn(column);
column.setWidth(width + myTable.getIntercellSpacing().width);
}
}
JTable table1 = new JTable(dataModel);
table1.FitTableColumns(table1) ;
程序报错
然后
GG.FitTableColumns(table1) ;