如何在Jtable中創建多行單元格
[英]How to make a multiline cell in Jtable
問題描述
我想知道是否有辦法在Java Swing的表中執行此操作。
我正在使用Vector<Vector<String>>來處理表，以便在DefaultTableModel對象中傳遞每個列數據，但為此我不知道我必須使用什么。
注意：表數據是在運行時動態添加的。
3 個解決方案
解決方案1
2 已采納 2015-09-25 19:11:55
您必須使用帶有JList視圖的自定義TabelCellRenderer 。 以下代碼應該工作。
public class VectorTableCellRenderer extends JList<String> implements TableCellRenderer {
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
if (value instanceof Vector) {
setListData((Vector) value);
}
if (isSelected) {
setBackground(UIManager.getColor("Table.selectionBackground"));
} else {
setBackground(UIManager.getColor("Table.background"));
}
return this;
}
}
編輯：如何使用VectorTableCellRenderer
VectorTableCellRenderer renderer = new VectorTableCellRenderer();
//set TableCellRenderer into a specified JTable column class
table.setDefaultRenderer(Vector.class, renderer);
//or, set TableCellRenderer into a specified JTable column
table.getColumnModel().getColumn(columnIndex).setCellRenderer(renderer);
這是我測試的輸出。
解決方案2
0 2019-06-09 19:49:37
javax.swing.JTable jTableReport = new javax.swing.JTable();// new JTable
javax.swing.table.DefaultTableModel TableModel = new javax.swing.table.DefaultTableModel(ArrayListTable.size(),Header.length);//new TableModel
//Now you must be add your data inside TableModel
jTableReport.setModel(TableModel);//setModel inside JTable
int RowWidth = 90;//Width You want to be
int RowHight = 25;//Hight of one line
for (int C = 0; C < jTableReport.getColumnCount(); C++) {
for (int R = 0; R < jTableReport.getRowCount(); R++) {
Object RowValue = jTableReport.getValueAt(R, C);
int lengthRow = String.valueOf(RowValue).length();
if (lengthRow>RowWidth) {
int NumLines = lengthRow/RowWidth;
if (NumLines == 1) {
NumLines = 2;
}
int begainIndex = 0;
int endIndex = RowWidth;
String NewRowValue = String.valueOf(RowValue);
for (int i = 1; i < NumLines; i++) {
if (i==1) {
NewRowValue = "<html>"+(String.valueOf(RowValue).substring(begainIndex, endIndex))+"<br>";
}else if (i == NumLines) {
NewRowValue = NewRowValue + (String.valueOf(RowValue).substring(begainIndex, endIndex))+"</html>";
}else {
NewRowValue = NewRowValue + (String.valueOf(RowValue).substring(begainIndex, endIndex))+"<br>";
}
begainIndex = begainIndex + RowWidth;
endIndex = endIndex + RowWidth;
i++;
}
jTableReport.setValueAt(NewRowValue, R, C);
jTableReport.setRowHeight(R, NumLines*RowHight);
}
}
}
解決方案3
0 2019-06-11 14:26:26
public void resizeCellWidthAndHieght(JTable table, int HorizontalAlignment, int VerticalAlignment) {
DefaultTableCellRenderer defaultTableCellRenderer = new DefaultTableCellRenderer();
defaultTableCellRenderer.setHorizontalAlignment(HorizontalAlignment);
defaultTableCellRenderer.setVerticalAlignment(VerticalAlignment);
table.setAutoResizeMode(table.AUTO_RESIZE_OFF);
final TableColumnModel columnmodel = table.getColumnModel();
int HieghtArray[] = new int[table.getRowCount()] ;
for (int column = 0; column < table.getColumnCount(); column++) {
table.getColumnModel().getColumn(column).setCellRenderer(defaultTableCellRenderer);
int width = 15; // Min width
int height = 25; // Min width
for (int row = 0; row < table.getRowCount(); row++) {
TableCellRenderer renderer = table.getCellRenderer(row, column);
Component comp = table.prepareRenderer(renderer, row, column);
width = Math.max(comp.getPreferredSize().width +1 , width);
height = Math.max(comp.getPreferredSize().height +4 , HieghtArray[row]);
if (HieghtArray[row]< height) {
HieghtArray[row] = height;
}
}
if(width > 300)
width=300;
columnmodel.getColumn(column).setPreferredWidth(width);
}
for (int i = 0; i < table.getRowCount(); i++) {
try {
table.setRowHeight(i, HieghtArray[i]);
} catch (Exception e) { }
}
}
如何在Java中的GlazedLists / JTable中使列，行或單元格可編輯？
[英]How to make a column, row or cell editable in a GlazedLists/JTable in java?
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