CODEWITHSUNDEEP
javagwtcolumn-chart
CobaltBabyBear
CobaltBabyBear

Reputation: 2218

Drawing a simple GWT Column Chart in Java

I am just playing with GWT charts but I am not quite understanding how it works.

I want to draw a simple column chart with Book Names on x-axis and Number of Books on y-axis. Here is the code.

DataTable table = DataTable.create();
ColumnChart columnChart;

table.addColumn(ColumnType.NUMBER, "Book 1");
table.addColumn(ColumnType.NUMBER, "Book 2");
table.addColumn(ColumnType.NUMBER, "Book 3");

table.addRows(3);
table.setValue(0, 0, 23);   
table.setValue(1, 0, 65);
table.setValue(2, 0, 23);

columnChart.draw(table, options);
add(columnChart);

This isn't working and the screen comes blank. I've set the chart size and everything in the optionsvariable. Am I missing something?

Upvotes: 0

Views: 206

Answers (1)

Fabian
Fabian

Reputation: 413

Make sure you have loaded the ChartLoader API first.

ChartLoader chartLoader = new ChartLoader(ChartPackage.CORECHART);
chartLoader.loadApi(new Runnable() {
    // draw your charts in here
}

Upvotes: 1

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