Generate Type Constructors
ReSharper | Edit | Generate Code | Constructor
AltInsert | Constructor (ReSharper_GenerateConstructor
)
The constructor generation wizard creates a non-default constructor that takes parameters for selected fields , properties and auto-properties.
All generated constructors follow the same pattern where:
Each field , property, or auto-property included in the constructor is initialized with a parameter.
The name of the parameter is derived from the name of the corresponding field or property.
tip
You can quickly generate constructors by typing
ctor
(without parameters),ctorf
(with parameters that initialize all fields) orctorp
(with parameters that initialize all properties).
If there are non-default base type constructors, the required parameters are added to the generated constructor and passed to the base class constructor.
In the example below, this command is used to generate a new Circle
constructor that takes two additional parameters to initialize _radius
and _center
fields.
Before generation | After generation |
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|
|
tip
You can configure common code generation preferences on the Code Editing | Members Generation page of ReSharper options Alt+R, O.
In the editor, place the caret at the type name or within a type at the line where you want to insert a constructor. If the caret is on the type name, the generated code will be added in the beginning of the type declaration.
Press AltInsert or choose ReSharper | Edit | Generate Code… from the main menu. Alternatively, you can press CtrlShift0A, start typing the command name in the popup, and then choose it there.
In the Generate popup, select Constructor.
In the Generate dialog that appears, select type members that should be initialized in the new constructor. Optionally, select one or several base class constructors. For every selected base constructor, a new constructor will be generated that will call the base and additionally initialize selected members.
Optionally, use the following controls in the dialog:
Access Rights — allows you to define access rights for the generated constructor.
Check parameters for null (appears if the class has fields or properties of nullable types) — if this checkbox is selected, ReSharper will generate configurable null checks for each nullable parameter, for example:
if (param == null) throw new ArgumentNullException(nameof(param));
Make parameters optional — if this checkbox is selected, ReSharper will make all parameters of the generated constructor optional and add default values corresponding to the parameter types.
Click Finish to complete the wizard.
You can also click Options to review or modify common code generation preferences on the Code Editing | Members Generation page of ReSharper options.
tip
To bind this code generation command to its own shortcut, go to Tools | Options | Environment | Keyboard and assign a shortcut for the
ReSharper_GenerateConstructor
command.
This feature is supported in the following languages and technologies:
The instructions and examples given here address the use of the feature in C#. For more information about other languages, refer to corresponding topics in the Languages and frameworks section.