GWT FlexTable

GWT FlexTable is a widget in the Google Web Toolkit (GWT) library that provides a table layout with dynamic resizing and styling capabilities. It is one of the most commonly used widgets in GWT for creating dynamic and structured layouts.

Features

FlexTable has several features that make it a powerful tool for creating layouts in GWT:

1. Dynamic resizing - FlexTable allows developers to resize rows and columns dynamically, based on their content or predetermined minimum and maximum sizes.
2. Merging cells - FlexTable allows developers to merge adjacent cells into a single cell with custom width and height properties.
3. Styling - FlexTable enables developers to style each cell individually or apply global styles to the entire table.
4. Built-in events and listeners - FlexTable provides several events and listeners, such as click and hover, which can be used to trigger custom callbacks.

Usage

To use FlexTable in your GWT project, you need to first create an instance of the class and add it to your parent widget:

FlexTable flexTable = new FlexTable();
panel.add(flexTable);

You can then add rows and cells to your table using the setHTML() or setText() methods:

flexTable.setHTML(0, 0, "<b>Column 1</b>");
flexTable.setHTML(0, 1, "<b>Column 2</b>");
flexTable.setText(1, 0, "Row 1, Col 1");

You can also merge cells using the setWidget() method:

flexTable.setWidget(0, 0, new Label("Merged Cell"));
flexTable.getFlexCellFormatter().setColSpan(0, 0, 2);

Conclusion

GWT FlexTable is a lightweight and versatile widget for creating dynamic and structured layouts in Google Web Toolkit. Its dynamic resizing, cell merging, and styling capabilities make it a powerful tool for developers looking to create complex and customizable user interfaces in GWT.