Functions

Defining a Function

Here is a C# function compared to the Linx version:

1. The Function definition lives in the Solution Explorer.
2. Its Parameters property defines the input parameters.
3. Its Result property defines the output results.
4. The central working area contains the body of the function.
5. Linx does not have an explicit ‘return’. When the Function finishes the Result set is returned.

Setting the result of a Function

1. The SetValue function comes from the Linx Plugin.
2. The Target property is set to $.Result.result. Select it from the dropdown. The Source property is set to an expression that adds the two numbers from $.Parameters. Use the Expression Editor in the dropdown to build the expression. The ‘=’ in front of the values in Target and Source indicates that these values are expressions and not literal values.

Click DEBUG to run the Function and see the result.

Calling a Function

Calling a Function is the same as one function calling another in programming.

1. Functions are dragged onto the body of another Function to call them.
2. Parameters of the called Function are visible as Properties.

Click DEBUG to run the Function and see the result.

Using the result of a Function

The body of a Function works exactly like the body of a programming function. Statements and expressions are added in a top down fashion and can refer to items in its scope. When we add another AddNumbers Function to the body of UseAddNumbers we can set its parameters to the result of the first AddNumbers:

Click DEBUG to run the Function and see the result.

Tutorial video