# CSharpFunction
**CSharpFunction** can contain any C# function's code that you want to include in your solution.
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## Properties
### Function
The function definition to execute. Click on the **\[...]** icon to open the Function Editor.
An example function is included as a reference. You can replace this with your own function.
When writing a new function, please note that any access modifiers (e.g. *public* or *private*) will be ignored, so it is not necessary to add them. The name of the function is also not important (and independent of the name of the Linx function), although it may help to specify a descriptive name to convey the purpose of the function.
Parameters will be extracted and listed in the Parameters section, while the result of the function (if any) will be used as the output of your Linx function.
**Accessing System Classes**
Linx allows access to the System classes (for example Math or IO). This can be done by calling the fully qualified class name. For example, to access the **Abs** function in the **System.Math** class, you will need to use **System.Math.Abs()**.
Only static members and functions are available to use.
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## Parameters
In this section, you can assign values to the parameters that are defined in your function. The list of parameters will automatically update when changes are made to the function.
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## Example
The example function in the Function Editor returns "Hello \[name]!".
When you save the function definition in the Function Editor, the name parameter is created in the Parameters section. Enter or select any value for the name parameter, e.g. "Jane". When you run the function, "Hello Jane!" will be returned.
The function's output will be available for use by other functions, e.g. SetValue. Expanding on our example, the target String in the screenshot below will be set to "Hello Jane!".
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## Links
[Writing C# in Linx](https://community.linx.software/community/t/writing-c-in-linx/562)
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