Example usage for com.google.gwt.visualization.client DataTable setValueNull

Introduction

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

Prototype

public final native void setValueNull(int rowIndex, int columnIndex) ;

Source Link

Document

Set the value of a cell to null.

Usage

From source file:com.google.gwt.visualization.sample.visualizationshowcase.client.Showcase.java

License:Apache License

static DataTable getCompanyPerformanceWithNulls() {
    DataTable data = DataTable.create();
    data.addColumn(ColumnType.STRING, "Year");
    data.addColumn(ColumnType.NUMBER, "Sales");
    data.addColumn(ColumnType.NUMBER, "Expenses");
    data.addRows(4);/*from w  w w  . j a  v  a 2s .  c o  m*/
    data.setValue(0, 0, "2004");
    data.setValue(0, 1, 1000);
    data.setValue(0, 2, 400);
    data.setValue(1, 0, "2005");
    data.setValue(1, 1, 1170);
    data.setValue(1, 2, 460);
    data.setValue(2, 0, "2006");
    data.setValueNull(2, 1);
    data.setValueNull(2, 2);
    data.setValue(3, 0, "2007");
    data.setValue(3, 1, 1030);
    data.setValue(3, 2, 540);
    return data;
}

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From source file:com.jythonui.client.charts.CharContainer.java

License:Apache License

private AbstractDataTable createTable(ListOfRows ro) {
    DataTable data = DataTable.create();
    ChartFormat fo = iDialog.getD().findChart(id);
    for (FieldItem i : fo.getColList()) {
        String s = null;//from w  w w .  j  a v a  2s  .  c o  m
        if (!CUtil.EmptyS(i.getDisplayName()))
            s = iGetMessage.getMessage(i.getDisplayName());
        ColumnType t = ColumnType.STRING;
        switch (i.getFieldType()) {
        case BIGDECIMAL:
        case INT:
        case LONG:
            t = ColumnType.NUMBER;
            break;
        case BOOLEAN:
            t = ColumnType.BOOLEAN;
            break;
        case DATE:
            t = ColumnType.DATE;
            break;
        case DATETIME:
            t = ColumnType.DATETIME;
            break;
        }
        if (s != null)
            data.addColumn(t, s);
        else
            data.addColumn(t);
    }
    data.addRows(ro.getRowList().size());
    RowIndex ri = new RowIndex(fo.getColList());
    int row = 0;
    for (RowContent r : ro.getRowList()) {
        int i = -1;
        for (FieldItem it : ri.getColList()) {
            i++;
            FieldValue val = r.getRow(i);
            if (val.getValue() == null) {
                data.setValueNull(row, i);
                continue;
            }
            switch (it.getFieldType()) {
            case BIGDECIMAL:
                BigDecimal b = val.getValueBD();
                data.setValue(row, i, b.doubleValue());
                break;
            case LONG:
                Long l = val.getValueL();
                data.setValue(row, i, l.intValue());
                break;
            case INT:
                Integer ival = val.getValueI();
                data.setValue(row, i, ival.intValue());
                break;
            case DATE:
            case DATETIME:
                Date d = val.getValueD();
                data.setValue(row, i, d);
                break;
            case BOOLEAN:
                Boolean bval = val.getValueB();
                data.setValue(row, i, bval.booleanValue());
                break;
            default:
                data.setValue(row, i, val.getValueS());
                break;

            } // switch
        } // for
        row++;
    } // for

    return data;
}

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