LocalReport Class
Represents a report that is processed and rendered locally without connecting to a report server.
Namespace: Microsoft.Reporting.WinForms
Assembly: Microsoft.ReportViewer.WinForms (in microsoft.reportviewer.winforms.dll)
Syntax
'Declaration
<SerializableAttribute> _
Public NotInheritable Class LocalReport
Inherits Report
Implements ISerializable, IDisposable
'Usage
Dim instance As LocalReport
[SerializableAttribute]
public sealed class LocalReport : Report, ISerializable, IDisposable
[SerializableAttribute]
public ref class LocalReport sealed : public Report, ISerializable, IDisposable
/** @attribute SerializableAttribute() */
public final class LocalReport extends Report implements ISerializable, IDisposable
SerializableAttribute
public final class LocalReport extends Report implements ISerializable, IDisposable
Remarks
The LocalReport class represents reports that are processed and rendered locally without connecting to a report server. This class is the same object that is used by the ReportViewer control, but it also can be used independently as a nonvisual object that encapsulates the core functionality of the ReportViewer control.
The LocalReport object can open client report definition (RDLC) files from the file system or from embedded resources, or the RDLC file can be supplied to it as a Stream or a TextReader.
The LocalReport object does not have the ability to execute queries or fetch data; instead, data sources must be added to the DataSources collection property.
The LocalReport object supports report parameters, but does not support parameter prompts.
Example
In the following code example, a LocalReport object is used to load and export a report.
private void button1_Click(object sender, EventArgs e)
{
Microsoft.Reporting.WinForms.LocalReport lr = new Microsoft.Reporting.WinForms.LocalReport();
string deviceInfo =
"<DeviceInfo>" +
"<SimplePageHeaders>True</SimplePageHeaders>" +
"</DeviceInfo>";
lr.ReportPath = @"C:\My Reports\Monthly Sales.rdlc";
lr.DataSources.Add(new ReportDataSource("Sales", GetSalesData()));
byte[] bytes = lr.Render("Excel", deviceInfo, out mimeType,
out encoding, out streamids, out warnings);
using (FileStream fs = = new FileStream(@"c:\My Reports\Monthly Sales.xls", FileMode.Create))
{
fs.Write(bytes, 0, bytes.Length);
}
}
Private Sub Button1_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Button1.Click
Dim warnings As Warning() = Nothing
Dim streamids As String() = Nothing
Dim mimeType As String = Nothing
Dim encoding As String = Nothing
Dim extension As String = Nothing
Dim deviceInfo as string
Dim bytes As Byte()
deviceInfo = "< deviceInfo ><SimplePageHeaders>True</SimplePageHeaders></DeviceInfo>"
bytes = ReportViewer1.LocalReport.Render("Excel", Nothing, _
mimeType,encoding, extension, streamids, warnings)
Dim fs As New FileStream("c:\output.xls", FileMode.Create)
fs.Write(bytes, 0, bytes.Length)
MessageBox.Show("Report exported to output.xls", "Info")
End Sub
Inheritance Hierarchy
System.Object
Microsoft.Reporting.WinForms.Report
Microsoft.Reporting.WinForms.LocalReport
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.