/// <summary>
/// Convert the csharp value to the ArcObject pixel value.
/// </summary>
/// <param name="csharpValue">Cshapr value</param>
/// <param name="pixelValueType">The pixel type of ouput value</param>
/// <param name="pixelValue">Output pixel value</param>
/// <returns>A value indicating whether the convention is successful</returns>
public static bool CSharpValue2PixelValue(object csharpValue, rstPixelType pixelValueType, out object pixelValue)
{
    try
    {
        switch (pixelValueType)
        {
            case rstPixelType.PT_UCHAR:
                pixelValue = (object)Convert.ToByte(csharpValue);
                return true;
            case rstPixelType.PT_CHAR:
                pixelValue = (object)Convert.ToSByte(csharpValue);
                return true;
            case rstPixelType.PT_SHORT:
                pixelValue = (object)Convert.ToInt16(csharpValue);
                return true;
            case rstPixelType.PT_USHORT:
                pixelValue = (object)Convert.ToUInt16(csharpValue);
                return true;
            case rstPixelType.PT_CLONG:
                pixelValue = (object)Convert.ToInt32(csharpValue);
                return true;
            case rstPixelType.PT_ULONG:
                pixelValue = (object)Convert.ToUInt32(csharpValue);
                return true;
            case rstPixelType.PT_FLOAT:
                pixelValue = (object)Convert.ToSingle(csharpValue);
                return true;
            case rstPixelType.PT_DOUBLE:
                pixelValue = (object)Convert.ToDouble(csharpValue);
                return true;
            default:
                pixelValue = null;
                return false;
        }
    }
    catch (Exception)
    {
        pixelValue = null;
        return false;
    }
}