LogicBuilder.Attributes

LogicBuilder.Attributes is a .NET Standard 2.0 library that provides declarative attributes for automatic configuration of methods, fields, properties, and constructor parameters in LogicBuilder applications.

Overview

This library enables developers to annotate their C# code with metadata that LogicBuilder uses to dynamically generate client-side and server-side workflows. By applying these attributes to your domain model, you can control how properties, methods, and parameters are presented and validated in the LogicBuilder visual designer.

Installation

dotnet add package LogicBuilder.Attributes

Attributes

CommentsAttribute

Provides descriptive comments for variables that appear in the LogicBuilder designer.

Applies to: Fields, Properties, Parameters [Comments("User's email address for notifications")] public string Email { get; set; }

ControlAttribute

Defines the UI control to be used in the business application for a field or property.

Applies to: Fields, Properties

[Control("EmailInput")] public string Email { get; set; }

DomainAttribute

Specifies a comma-delimited list of valid values for a field, property, or parameter.

Applies to: Fields, Properties, Parameters

[Domain("Active,Inactive,Pending")] public string Status { get; set; }

ErrorMessageAttribute

Configures a generic error message for field or property validation.

Applies to: Fields, Properties

[ErrorMessage("Email address is required")] public string Email { get; set; }

FunctionGroupAttribute

Categorizes methods into functional groups within LogicBuilder.

Applies to: Methods

Values: FunctionGroup.Standard, FunctionGroup.DialogForm

[FunctionGroup(FunctionGroup.Standard)] public void ProcessOrder(Order order) { }

ListEditorControlAttribute

Specifies the control type for editing list parameters in LogicBuilder.

Applies to: Parameters, Fields, Properties

Values: ListControlType.ListForm, ListControlType.HashSetForm, ListControlType.Connectors

[ListEditorControl(ListControlType.HashSetForm)] public HashSet<string> Tags { get; set; }

ParameterEditorControlAttribute

Defines the editor control for method parameters in LogicBuilder.

Applies to: Parameters

Values:

• ParameterControlType.SingleLineTextBox
• ParameterControlType.MultipleLineTextBox
• ParameterControlType.DropDown
• ParameterControlType.TypeAutoComplete
• ParameterControlType.DomainAutoComplete
• ParameterControlType.PropertyInput
• ParameterControlType.ParameterSourcedPropertyInput
• ParameterControlType.ParameterSourceOnly
• ParameterControlType.Form

public void UpdateProfile([ParameterEditorControl(ParameterControlType.MultipleLineTextBox)] string bio) { }

VariableEditorControlAttribute

Specifies the editor control for fields and properties in LogicBuilder.

Applies to: Fields, Properties

Values:

• VariableControlType.SingleLineTextBox
• VariableControlType.MultipleLineTextBox
• VariableControlType.DropDown
• VariableControlType.TypeAutoComplete
• VariableControlType.DomainAutoComplete
• VariableControlType.PropertyInput
• VariableControlType.Form

[VariableEditorControl(VariableControlType.DropDown)] [Domain("Small,Medium,Large")] public string Size { get; set; }

NameValueAttribute

Defines additional custom name-value pairs for fields, properties, or parameters. This attribute can be applied multiple times.

Applies to: Fields, Properties, Parameters

[NameValue("MinLength", "5")] [NameValue("MaxLength", "100")] public string Username { get; set; }

Example Usage

using LogicBuilder.Attributes;
public class User { [Comments("Unique identifier for the user")] [VariableEditorControl(VariableControlType.SingleLineTextBox)] public string UserId { get; set; }

    [Comments("User's email address")]
    [ErrorMessage("A valid email address is required")]
    [VariableEditorControl(VariableControlType.SingleLineTextBox)]
    [NameValue("ValidationPattern", "^[^@]+@[^@]+\\.[^@]+$")]
    public string Email { get; set; }

    [Comments("Current account status")]
    [Domain("Active,Inactive,Suspended")]
    [VariableEditorControl(VariableControlType.DropDown)]
    public string Status { get; set; }

    [FunctionGroup(FunctionGroup.Standard)]
    public void ActivateAccount(
        [Comments("Activation code sent to user")]
        [ParameterEditorControl(ParameterControlType.SingleLineTextBox)]
        string activationCode)
    {
        // Implementation
    }

}

Target Framework

• .NET Standard 2.0

Related Projects

• LogicBuilder - The visual workflow designer that consumes these attributes

Contributing

Contributions are welcome!