Any way to shorten syntax when using class interface in C#?

Let's say I have created a Slider User Control which implements ISlider Interface. I have some methods like SetVa开发者_C百科lue below which should accept both ISlider types and standard Slider control type. Am I'm obliged to use this heavy syntax is there any shortcut ?

    public void SetValue(Object slider, Double value) {
    ISlider ISlider;
    ISlider = slider as ISlider;
    if (ISlider != null)
    {
        ISlider.Value = value;
    }
    else
    {
        ((Slider)slider).Value = value;
    }

As you can't make the wpf Slider control inherit from your ISlider, use an overloaded method.

public void SetValue(ISlider slider, double value)
{
    slider.Value = value;
}

public void SetValue(Slider slider, double value)
{
    slider.Value = value;
}

This isn't pretty, but saves you a headache as you don't have to check if the object is the correct type.