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The Java Developers Almanac 1.4Order this book from Amazon. |
e915. Converting a Column Index Between the View and Model in a JTable ComponentA column in aJTable component has two types of indices, a visible
index and a model index. The visible index of a column is its visible
location on the screen. The model index of a column is its permanent
position in a TableModel , which contains the actual data. This
example demonstrates how to convert a column index between the two
forms.
// Converts a visible column index to a column index in the model. // Returns -1 if the index does not exist. public int toModel(JTable table, int vColIndex) { if (vColIndex >= table.getColumnCount()) { return -1; } return table.getColumnModel().getColumn(vColIndex).getModelIndex(); } // Converts a column index in the model to a visible column index. // Returns -1 if the index does not exist. public int toView(JTable table, int mColIndex) { for (int c=0; c<table.getColumnCount(); c++) { TableColumn col = table.getColumnModel().getColumn(c); if (col.getModelIndex() == mColIndex) { return c; } } return -1; }
e917. Setting the Width of a Column in a JTable Component e918. Setting the Column Resize Mode of a JTable Component e919. Locking the Width of a Column in a JTable Component e920. Appending a Column to a JTable Component e921. Inserting a Column in a JTable Component e922. Removing a Column from a JTable Component e923. Moving a Column in a JTable Component e924. Allowing the User to Move a Column in a JTable Component e925. Allowing the User to Resize a Column in a JTable Component
© 2002 Addison-Wesley. |