ActiveReports Developer allows reports to be saved in their own standard format called an RDF file (Report Document Format). In this format, the data is static. The saved report displays the data that is retrieved when you run the report. You can save a report to an RDF file and load it into the viewer control.

Show To save a report as a static RDF file

Double-click the title bar of the Windows Form to create an event-handling method for the Form_Load event.

Add the following code to the handler to save the report.

Show To write the code in Visual Basic.NET

Visual Basic.NET code. Paste INSIDE the Form_Load event.	Copy Code
Dim rpt As New YourReportName() rpt.Document.Save(Application.StartupPath + "\NewRDF.RDF")

Show To write the code in C#

C# code. Paste INSIDE the Form_Load event.	Copy Code
YourReportName rpt = new YourReportName(); rpt.Document.Save(Application.StartupPath + "\\NewRDF.RDF");

Show To load a saved RDF file into the ActiveReports viewer

Double-click the title bar of the Windows Form to create an event-handling method for the Form_Load event.

Add the following code to the handler to load the saved report.

Show To write the code in Visual Basic.NET

Visual Basic.NET code. Paste INSIDE the Form_Load event.	Copy Code
Viewer1.Document.Load("Location of the .RDF File")

Show To write the code in C#

C# code. Paste INSIDE the Form_Load event.	Copy Code
viewer1.Document.Load(@"Location of the .RDF File");

Note: The Windows Form Viewer can display RDF files made with any version of ActiveReports, including COM versions. The FlashViewer viewer type of the WebViewer (Professional Edition) may be able to display RDF files made with previous versions, but this is not guaranteed for every RDF.

Show To save or load report files to a memory stream

Double-click the title bar of the Windows Form to create an event-handling method for the Form_Load event.

Add the following code to the handler to save the report to a memory stream and load the memory stream into the ActiveReports viewer.

The following examples show what the code for the method looks like.

Show To write the code in Visual Basic.NET

Visual Basic.NET code. Paste INSIDE the Form_Load event.	Copy Code
Dim strm As New System.IO.MemoryStream() Dim rpt As New YourReportName() rpt.Run() rpt.Document.Save(strm) Dim theBytes(strm.Length) As Byte strm.Read(theBytes, 0, Int(strm.Length)) strm.Position = 0 Viewer1.Document.Load(strm)

Visual Basic.NET code. Paste INSIDE the Form_Load event.

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Dim strm As New System.IO.MemoryStream()
Dim rpt As New YourReportName()
rpt.Run()
rpt.Document.Save(strm)
Dim theBytes(strm.Length) As Byte
strm.Read(theBytes, 0, Int(strm.Length))
strm.Position = 0
Viewer1.Document.Load(strm)

Show To write the code in C#

C# code. Paste INSIDE the Form_Load event.	Copy Code
System.IO.MemoryStream strm = new System.IO.MemoryStream(); YourReportName rpt = new YourReportName(); rpt.Run(); rpt.Document.Save(strm); byte[] theBytes = new byte[strm.Length]; strm.Read(theBytes, 0, (int)strm.Length); strm.Position =0; viewer1.Document.Load(strm);

C# code. Paste INSIDE the Form_Load event.

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System.IO.MemoryStream strm = new System.IO.MemoryStream();
YourReportName rpt = new YourReportName();
rpt.Run();
rpt.Document.Save(strm);
byte[] theBytes = new byte[strm.Length];
strm.Read(theBytes, 0, (int)strm.Length);
strm.Position =0;
viewer1.Document.Load(strm);

ActiveReports Developer 7
Save and Load RDF Report Files
See Also Support Forum

See Also