Example usage for com.google.gwt.visualization.client AbstractDataTable getNumberOfColumns

Introduction

In this page you can find the example usage for com.google.gwt.visualization.client AbstractDataTable getNumberOfColumns.

Prototype

public final native int getNumberOfColumns() ;

Source Link

Usage

From source file:com.google.gwt.visualization.sample.customvisualization.client.CustomVisualization.java

License:Apache License

@Override
public void draw(AbstractDataTable dataTable, CustomVisualizationDrawOptions options) {
    grid.clear();/*  w w w  .  jav a2 s.c  o  m*/
    // Apply the drawing options
    if (options != null) {
        grid.getElement().getStyle().setProperty("backgroundColor", options.getBackgroundColor());
    }

    for (int c = 0; c < dataTable.getNumberOfColumns(); c++) {
        grid.setHTML(0, c, "<b>" + dataTable.getColumnLabel(c) + "</b>");
    }

    for (int r = 0; r < dataTable.getNumberOfRows(); r++) {
        for (int c = 0; c < dataTable.getNumberOfColumns(); c++) {
            grid.setText(r + 1, c, dataTable.getFormattedValue(r, c));
        }
    }
    // handle selection
    grid.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            cell = grid.getCellForEvent(event);
            CustomVisualization.this.fireSelectionEvent();
        }
    });
}

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