Example – VB.NET Code

Here’s a guide on how to implement your VB.NET code within a workflow:

In the following example, I will demonstrate how to utilize the “InvokeCode” activity to invoke my custom VB.NET code in the workflow. Within my custom VB.NET code, I have designed it to execute a straightforward calculation using the default numbers provided within it.

Click here to refer the below attached code.

1. Create a new solution.
2. Install the “Core Activities” from the Manage Features.
3. Drag and drop the “InvokeCode” activity into the workflow and set it as the start node.
a. This activity helps you integrate custom code into your automation workflow. 
4. Navigate to the “Language” in the properties section to choose the preferred language that we are going to perform.
a. Here select the value as “VB Net”. 
5. Choose the “Open Code Editor” option to provide the VB code in the activity. 
6. A window labeled “Invoke Code” will open.
a. Enter the custom code here. Refer to the attached VB.NET code.
b. Click the save button.
7. Before proceeding with the execution, let’s create a variable to retrieve the output from the code.
a. This variable will be passed to an argument, which will be used in the code to retrieve the output.
8. First, create a variable.
a. Navigate to the “Variables” section and create a variable named “TOTALAdd” with the “Int32” as datatype. 
9. Move to the activity and choose the “Arguments” button.
a. A pop-up labeled “Argument Panel” will appear on the screen.
b. Enter the “Name” as “Add” and in the “Value” field provide the variable as “TOTALAdd”.
c. Ensure to set the “Direction” as “OUT” since we are retrieving the values from the code as output.
d. Click the save button. 
10. To pass this argument inside the code, again choose the “Edit Code” option.
a. At line number 38, the code will print the output to the console log file. (Refer the below image)