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GWT Google Charts - Table Chart
  • 时间:2024-09-17

GWT Google Charts - Table Chart


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Table chart helps in rendering a table which can be sorted and paged. Table cells can be formatted using format strings, or by directly inserting HTML as cell values. Numeric values are right-apgned by default; boolean values are displayed as check marks or cross marks. Users can select single rows either with the keyboard or the mouse. Column headers can be used for sorting. The header row remains fixed during scrolpng. The table fires events corresponding to user interaction.

We have already seen the configurations used to draw a chart in Google Charts Configuration Syntax chapter. Now, let us see an example of a Table Chart.

Configurations

We ve used Table class to show a Table chart.

Table chart = new Chart();

Example

HelloWorld.java

package com.tutorialspoint.cpent;

import com.google.gwt.core.cpent.EntryPoint;
import com.google.gwt.user.cpent.ui.RootPanel;

import com.googlecode.gwt.charts.cpent.ChartLoader;
import com.googlecode.gwt.charts.cpent.ChartPackage;
import com.googlecode.gwt.charts.cpent.ColumnType;
import com.googlecode.gwt.charts.cpent.DataTable;
import com.googlecode.gwt.charts.cpent.table.Table;
import com.googlecode.gwt.charts.cpent.table.TableOptions;

pubpc class HelloWorld implements EntryPoint {
   private Table chart;

   private void initiapze() {
      ChartLoader chartLoader = new ChartLoader(ChartPackage.TABLE);
      chartLoader.loadApi(new Runnable() {
         pubpc void run() {
            // Create and attach the chart
            chart = new Table();
            RootPanel.get().add(chart);
            draw();
         }
      });
   }
   private void draw() {
      // Prepare the data
      DataTable dataTable = DataTable.create();
      dataTable.addColumn(ColumnType.STRING, "Name");
      dataTable.addColumn(ColumnType.NUMBER, "Salary");
      dataTable.addColumn(ColumnType.BOOLEAN, "Full Time Employee");
      dataTable.addRows(4);
      
      dataTable.setCell(0, 0, "Mike");
      dataTable.setCell(0, 1, 10000, "$10,000");
      dataTable.setCell(0, 2, true);
      dataTable.setCell(1, 0, "Jim");
      dataTable.setCell(1, 1, 8000, "$8,000");
      dataTable.setCell(1, 2, false);
      dataTable.setCell(2, 0, "Apce");
      dataTable.setCell(2, 1, 12500, "$12,500");
      dataTable.setCell(2, 2, true);
      dataTable.setCell(3, 0, "Bob");
      dataTable.setCell(3, 1, 7000, "$7,000");
      dataTable.setCell(3, 2, true);

      TableOptions options  = TableOptions.create();
      options.setAlternatingRowStyle(true);
      options.setShowRowNumber(true);
      
      // Draw the chart
      chart.draw(dataTable, options);
      chart.setWidth("400px");
      chart.setHeight("400px");
   }
   pubpc void onModuleLoad() {
      initiapze();
   }
}

Result

Verify the result.

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