編程更改文本對象示例代碼

以下是編程更改報表上文本對象中文本的示例，此處假設已有CrystalReportAnalysis.rpt文件，其上放置有一個Name爲Text1的文本對象！

using CrystalDecisions.CrystalReports.Engine;

private const string REPORT_NAME = @"../../CrystalReportAnalysis.rpt";
private const string TEXT_OBJECT_NAME = @"Text1";

private void Form1_Load(object sender, System.EventArgs e)
{
   report = new ReportDocument();
   report.Load(REPORT_NAME);
   report.Refresh();

   crvChart.ReportSource = report;
}

private void btnChangeText_Click(object sender, System.EventArgs e)
{
   TextObject text;
 
   text = GetTextObject(TEXT_OBJECT_NAME);

   text.Text = "Hello, Haibo.NET!";

   crvChart.RefreshReport();
}

private TextObject GetTextObject(string reportObjectName)
{
   TextObject text;

   // 按名稱獲取 ReportObject，將其轉換爲 TextObject，
   //並返回此對象。
   text = report.ReportDefinition.ReportObjects[reportObjectName] as TextObject;
   if (text != null) return text;
   else return null;
}