ASP.net c# Error, CS1061: 'Web2Print.ArtworkLabel' does not contain a definition for 'ID' and no extension method 'ID'

The error I am getting is:

CS1061: 'Web2Print.ArtworkLabel' does not contain a definition for 'ID' and no extension method 'ID' accepting a first argument of type 'Web2Print.ArtworkLabel' could be found (are you missing a using directive or an assembly reference?)

On the line:

string FormVal = Request.Form["label" + TheLabel.ID];

The code block the line is in is:

public void SaveData(object sender, EventArgs e)
{
    // New data record
    ArtworkData DataRecord = new ArtworkData(DataID);
    DataRecord.LoadTemplate();
    DataRecord.Template.LoadLabels();
    DataRecor开发者_如何学Pythond.LoadDataLabels();

    // Delete all from DB
    ArtworkCommon.DeleteDataLabels(DataID);

    ArrayList LabelsCollection = new ArrayList();

    // Loop through all the fields
    foreach (ArtworkLabel TheLabel in DataRecord.Template.Labels)
    {
        string FormVal = Request.Form["label" + TheLabel.ID];

The definition of ArtworkLabel is:

/// <summary>
/// A template label
/// </summary>
public class ArtworkLabel
{
    public bool Loaded { get; set; }
    public int ID { get; set; }
    public string Text { get; set; }
    public LabelStyle Style { get; set; }
    public Coordinate Coords { get; set; }
    public int TemplateID { get; set; }
    public int PageNumber { get; set; }

The code isn't very well formed, I know. The function throwing the error exists in namespace Web2Print, but the ArtworkLabel class does not exist in a namespace. I don't think this should be a problem.

I've tried rebuilding, clearing temp files as well.

---

The function throwing the error exists in namespace Web2Print, but the ArtworkLabel class does not exist in a namespace

Everything must be in a namespace. Figure out what namespace ArtworkLabel is in, and refer to it as ArtworkLabelNameSpace.ArtworkLabel.

Also check if there's a control called ArtworkLabel in your ASPX file; the error message sounds like it actually finds a matching object, but the object doesn't define an ID property.