Automation Developer Associate Training CKP V9 week 2

Module Overview

• Week 2 Lesson: Variables, Constants, and Arguments in UiPath Studio

Learning Objectives

1. Data Management in Studio:

   • Understand how data is stored, processed, and passed between actiAutomationvities/workflows.

2. Common Data Types:

   • Identify common data types in UiPath Studio and their conversion methods.

3. Variables and Arguments Creation:

   • Learn to create and configure variables, arguments, and arrays in automation projects.

4. Global Constants and Variables:

   • Explain global constants/variables and their use in automation projects.

Key Concepts

Variables

• Definition:

  • Containers that hold data values of specific data types (numeric, text, etc.).

• Properties:

  • Name: Identifier of the variable.

  • Type: Data type stored (e.g., String, Int32).

  • Value: Current data held by the variable.

  • Scope: Defines accessibility within the program.

• Characteristics:

  • Can hold multiple values.

  • Dynamic; can change during execution.

Creating Variables

• Methods:

  • Variables panel.

  • Activity properties panel.

  • Data Manager panel.

• Best Practices:

  • Assign meaningful names.

  • Follow naming conventions (PascalCase).

  • Keep variables in the innermost scope to reduce clutter.

Data Types

• Basic Types:

  • String, Numeric, Boolean, DateTime.

• Complex Types:

  • Array (fixed size), List (dynamic size), Dictionary (key-value pairs).

Conversion Methods

• Used to change one data type to another (e.g., Convert.ToString, Convert.Int32).

Arguments

• Definition:

  • Similar to variables, but specifically for passing data between workflows.

• Properties:

  • Have directional properties: In, Out, In/Out.

• Use cases:

  • Suitable for complex automation projects where data flows between workflows.

Special Cases

Global Constants and Variables

• Purpose:

  • Centralized data accessed by the entire automation project.

• Characteristics:

  • Global constants cannot be altered; global variables can be modified.

Arrays

• Definition:

  • Store multiple values of the same data type with fixed sizes.

• Creation Example:

  • IntArray = {34, 25, 1}

• Accessing Elements:

  • Indexed access (e.g., IntArray(0) returns 34).

Exercises

1. Exercise 1: Create a process for user input and log messages.

2. Exercise 2: Implement a calculation workflow for summing double values.

3. Exercise 3: Calculate VAT and display purchase details.

4. Exercise 4: Build a flight reservation process using user input and array variables.