FileExists

The FileExists component determines whether the specified file exists.

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Ports

The FileExists component exposes the Control In, Control Out, Data In, and Data Out ports by default.

Port Description
ControlIn Must be connected to the Control Out port of one or more components.
ControlOut Can be connected to the Control In port of another component or the default end component.
Data In Specifies the location of the file to delete (string).
Data Out Returns “True” if the specified file exists, else returns “False” (Boolean).

Properties

To edit the properties of the FileExists component, in the Properties window, change the required property. You can edit the following properties.

Property Description
Search Search for the respective property.
Delay After Execution Specifies the wait time (in seconds) after the action is performed.
Delay Before Execution Specifies the wait time (in seconds) before the action is performed.

Example

Let us consider an example.

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To check if a file exists:

  1. In the Toolbox, expand Utilities and then expand File.
  2. Drag the FileExists component and drop it on the Design surface.
  3. Double-click the filePath box and enter the path of the required file.
  4. To override the existing data source, right-click filePath box.
  5. Click Override and change the data source.

    Note

    To learn more about overriding the data source of the data port, refer the Override section.

  6. To enable display of the returned value, you can add a Message Box component to the activity.

    To add the Message Box component:

    • In the Toolbox, expand the General.
    • Expand the Message Box component, drag Show component and drop it on the design surface.
  7. Connect all the control ports and data ports in the activity.
  8. In the toolbar, click Run.
    The message box displays “True” if the specified file exists.

    Screenshot

  9. If the specified files does not exists, the message box displays “False”.

    Screenshot