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Try catch activity in UiPath

In this article, we will discuss exception handling in UiPath using the try-catch-finally activities.

Purpose

The try-catch block catches a specific exception type in a sequence or an activity. Once the exception is catched, the exception is either displayed or ignored and continues the action.

There are three sections of exception handling activities.

      1. Try - Here, exception prone code will come.

      2. Catch - Here, the action takes place (display or ignore exception) when an exception occurs.

      3. Finally - This is the section which gets executed whether the exception occurs or does not occur.

Example

In this example, we will perform the following activities.

      1. Drag and drop the "Try Catch" activity.

      2. Inside the try block, drag and drop the "Open Application" activity.

      3. Inside the "Open Application" activity, open the notepad application.

Picture showing the open application activity inside the try block

Click to Enlarge

4. To make it an error prone activity, go to the selector of "Open Application" and make the application name as "notepad1.exe" instead of "notepad.exe".

Picture showing the selector editor with the application name changes from notepad to notepad1

Click to Enlarge

5. In the catch block, select the exception type.

Picture showing the Catch block to select the type of exception

Click to Enlarge

6. Drag and drop the "Message Box" inside the catches.

Picture showing the message box inside the catch block

Click to Enlarge

7. In the finally section, drag and drop the "Message Box" activity.

Picture showing the message box inside the finally block

Click to Enlarge

8. Save and run the bot.

Output

Picture showing the execution of catch block when an exception occurs and the finally block

Click to Enlarge

Posted By -	Karan Gupta

Posted On -	Friday, February 19, 2021

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