ICommandHandler Interface

If implemented by a class, provides methods for handling commands in Print Preview.

Namespace: DevExpress.XtraPrinting

Assembly: DevExpress.Printing.v18.1.Core.dll

Declaration

C#

public interface ICommandHandler

VB.NET

Public Interface ICommandHandler

Remarks

An object implementing the ICommandHandler interface is passed to the PrintingSystemBase.AddCommandHandler method as a parameter.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the ICommandHandler interface.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

Reporting_how-to-add-custom-command-handlers-to-preview-buttons-in-the-end-user-designer-e98/CS/dxKB13085/Form1.cs#L31

public class ZoomInCommandHandler : DevExpress.XtraPrinting.ICommandHandler {
    public virtual void HandleCommand(PrintingSystemCommand command, object[] args, IPrintControl control, ref bool handled) {

Reporting_how-to-customize-a-report-controls-appearance-only-when-exporting-the-report-e1159/CS/WindowsApplication1/Form1.cs#L38

public class ExportToExcelCommandHandler : ICommandHandler {
    public virtual void HandleCommand(PrintingSystemCommand command, object[] args, IPrintControl control, ref bool handled) {

Reporting_how-to-export-different-report-groups-to-different-sheets-in-an-xls-file-e1352/CS/WindowsApplication1/Form1.cs#L35

public class ExportToXlsCommandHandler: ICommandHandler {
    public virtual void HandleCommand(PrintingSystemCommand command,object[] args,IPrintControl control,ref bool handled) {

Reporting_how-to-override-commands-in-print-preview-custom-export-e2305/CS/OverridePreviewCommands/Form1.cs#L34

public class ExportToImageCommandHandler : ICommandHandler {
    public virtual void HandleCommand(PrintingSystemCommand command,

Reporting_how-to-customize-file-names-in-differentfiles-export-mode-when-exporting-to-ms-t424910/CS/WindowsFormsApplication1/Form1.cs#L35

public class ExcelExportCommandHandler : ICommandHandler
{

VB.NET

Reporting_how-to-add-custom-command-handlers-to-preview-buttons-in-the-end-user-designer-e98/VB/dxKB13085/Form1.vb#L35

Public Class ZoomInCommandHandler
    Implements DevExpress.XtraPrinting.ICommandHandler

Reporting_how-to-customize-a-report-controls-appearance-only-when-exporting-the-report-e1159/VB/WindowsApplication1/Form1.vb#L41

Public Class ExportToExcelCommandHandler
    Implements ICommandHandler

Reporting_how-to-export-different-report-groups-to-different-sheets-in-an-xls-file-e1352/VB/WindowsApplication1/Form1.vb#L38

Public Class ExportToXlsCommandHandler
    Implements ICommandHandler
    Public Overridable Sub HandleCommand(ByVal command As PrintingSystemCommand, ByVal args() As Object, ByVal control As IPrintControl, ByRef handled As Boolean) Implements ICommandHandler.HandleCommand

Reporting_how-to-override-commands-in-print-preview-custom-export-e2305/VB/OverridePreviewCommands/Form1.vb#L37

Public Class ExportToImageCommandHandler
    Implements ICommandHandler
            Public Overridable Sub HandleCommand(ByVal command As PrintingSystemCommand, _

Reporting_how-to-customize-file-names-in-differentfiles-export-mode-when-exporting-to-ms-t424910/VB/WindowsFormsApplication1/Form1.vb#L34

Public Class ExcelExportCommandHandler
    Implements ICommandHandler