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BooleanExt

Extension Method to Execute Delegate Based on Boolean Value

Source

static class BooleanExt
{
    public delegate void delExecuteMethod();
    /// <summary>
    /// 
    /// </summary>
    /// <param name="value">Current value of Boolean</param>
    /// <param name="executeWhen">Value of Boolean when to execute delegate.</param>
    /// <param name="executeMethod">Delegate method to execute.</param>
    public static void When(this bool value, bool executeWhen, delExecuteMethod executeMethod)
    {
        if (value == executeWhen)
            executeMethod.Invoke();
    }

    /// <summary>
    /// Executes delegate when the boolean value is true.
    /// </summary>
    /// <param name="value">Current value of the boolean.</param>
    /// <param name="executeMothod">Delegate method to execute.</param>
    public static void WhenTrue(this bool value, delExecuteMethod executeMothod)
    {
        if (value)
            executeMothod.Invoke();
    }

    /// <summary>
    /// Executes the delegate when the boolean value is false.
    /// </summary>
    /// <param name="value">Current value of the boolean.</param>
    /// <param name="executeMothod">Delegate method to execute.</param>
    public static void WhenFalse(this bool value, delExecuteMethod executeMothod)
    {
        if (!value)
            executeMothod.Invoke();
    }


}

Example

BooleanExt.delExecuteMethod d = delegate () { Console.WriteLine("TaDa"); };

bool state = true;
// Should execute delegate
state.When(true, d);
// Should not execute delegate
state.When(false, d);

state = false;
// Should execute delegate
state.When(false, d);
// Should not execute delegate
state.When(true, d);

state = true;
// Should execute delegate
state.WhenTrue(d);
// Should not execute delegate
state.WhenFalse(d);

state = false;
// Should not execute delegate
state.WhenTrue(d);
// Should execute delegate
state.WhenFalse(d);

Author: Brian Pruitt

Submitted on: 16 jan 2017

Language: C#

Type: bool

Views: 1934