About a Dicom image with ClearCanvas wit C#

using ClearCanvas.Dicom; DicomFile dicomFile = new DicomFile(dicomFileName);

int bitsPerPixel = dicomFile.DataSet.GetAttribute(DicomTags.BitsStored).GetInt32(0, 0);

int width = dicomFile.DataSet.GetAttribute(DicomTags.Columns).GetInt32(0, 0);

int height = dicomFile.DataSet.GetAttribute(DicomTags.Rows).GetInt32(0, 0);

// note, this only works if bitsPerPixel is > 8 and <=16

int stride = width * 2;

byte[] bitmapBuffer = (byte[])dicomFile.DataSet.GetAttribute(DicomTags.PixelData).Values;

BitmapSource bitmapSource = BitmapImage.Create(width, height, 96, 96, System.Windows.Media.PixelFormats.Gray16, null, bitmapBuffer, stride);

image1.Source = bitmapSource;

I have a piece of code to run with this code and the code in its entirety is posted below.               string filename = @"C:\fluro.dcm";             DicomFile dicomFile = new DicomFile(filename);             dicomFile.Load(DicomReadOptions.Default);             foreach (DicomAttribute attribute in dicomFile.DataSet)             {                 Console.WriteLine("Tag: {0}, Value: {1}", attribute.Tag.Name, attribute.ToString());             }             int bitsPerPixel = dicomFile.DataSet.GetAttribute(DicomTags.BitsStored).GetInt32(0, 0);             int width = dicomFile.DataSet.GetAttribute(DicomTags.Columns).GetInt32(0, 0);             int height = dicomFile.DataSet.GetAttribute(DicomTags.Rows).GetInt32(0, 0);             int stride = width * 2;             byte[] bitmapBuffer = (byte[])dicomFile.DataSet.GetAttribute(DicomTags.PixelData).Values;             BitmapSource bitmapSource = BitmapImage.Create(width, height, 96, 96, System.Windows.Media.PixelFormats.Gray16, null, bitmapBuffer, stride);             image1.Source = bitmapSource;  However, I'm encountering a single error on the lastline image1.Source = bitmapSource; The error states that  Error 1  The name 'image1' does not exist in the current context How is image1 defined and how can I fix this error. I will be grateful for any information. Thank you verymuch