编程抑制显示图表示例代码

using CrystalDecisions.CrystalReports.Engine;

private const string REPORT_NAME = @"..\..\CrystalReportAnalysis.rpt";

private const string CHART_OBJECT_NAME = @"Graph2";

private void Form1_Load(object sender, System.EventArgs e)

{

report = new ReportDocument();

report.Load(REPORT_NAME);

report.Refresh();

crvChart.ReportSource = report;

}

private void btnChangeType_Click(object sender, System.EventArgs e)

{

ChartObject chart;

chart = GetChartObject(CHART_OBJECT_NAME);

chart.ObjectFormat.EnableSuppress = true;

crvChart.RefreshReport();

}

private ChartObject GetChartObject(string reportObjectName)

{

ChartObject chart;

// 按名称获取 ReportObject，将其转换为 ChartObject，

//并返回此对象。

chart = report.ReportDefinition.ReportObjects[reportObjectName] as ChartObject;

if (chart != null) return chart;

else return null;

}