Select a enum with a variable

I have an combobox to select the cdrAntiAliasingType with the Values 0,1,2

How i can use this numbers to fill out the correct type in the method?

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dplS = dplS.ConvertToBitmapEx(corel.cdrImageType.cdrCMYKColorImage, false, false, imgResolution, corel.cdrAntiAliasingType.cdrNormalAntiAliasing, false, true, 95);

// corel class

{
    public enum cdrAntiAliasingType
    {
        cdrNoAntiAliasing = 0,
        cdrNormalAntiAliasing = 1,
        cdrSupersampling = 2
    }
}