Question

I have following enum definition

public enum UploaderType
{
    BrandLogo = 0,
    ReportingLogo = 1,
    DocumentTemplate = 2,
    MModalTemplate = 3,
}

I have a switch case in which i want to use this enum

void FileUploadExceptionHandler(FileUploadControl.FileUploadExceptionType     exceptionType, FileUploadControl.UploaderType uploaderType)
{
    switch (uploaderType)
    {
        case FileUploadControl.UploaderType.DocumentTemplate:
            (this.Page as PageBase).SetMessage(string.Format(GetLocalResourceObject("FileExtensionError").ToString(), docIndentifier, formatAllowed(ucdocxUploadControl.SupportedFileTypes)), PageMessageType.ErrorMessage);
            break;
        case FileUploadControl.UploaderType.MModalTemplate:
            (this.Page as PageBase).SetMessage(string.Format(GetLocalResourceObject("FileExtensionError").ToString(), docIndentifier, formatAllowed(ucampUploadControl.SupportedFileTypes)), PageMessageType.ErrorMessage);
            break;
        case FileUploadControl.UploaderType.MModalTemplate|FileUploadControl.UploaderType.DocumentTemplate:
            (this.Page as PageBase).SetMessage(string.Format(GetLocalResourceObject("FileExtensionErrorForBoth").ToString(), formatAllowed(ucdocxUploadControl.SupportedFileTypes), formatAllowed(ucampUploadControl.SupportedFileTypes)), PageMessageType.ErrorMessage);
            break;
    }
}

I am trying to use combination of enum in third case but compiler complains The label ‘case 3:’ already occurs in this switch statement.

This enum is outside my control,so icannot use flags on it. Please suggest how to achieve this.

When i call it, i use

 FileUploadExceptionHandler(FileUploadControl.FileUploadExceptionType.FileExtensionNotAllowed, FileUploadControl.UploaderType.DocumentTemplate | FileUploadControl.UploaderType.MModalTemplate);

Answer 1

You cannot do what you want. If you were able to modify the enum you would change it to this:

[Flags]
public enum UploaderType
{
    None = 0,
    BrandLogo = 1,
    ReportingLogo = 2,
    DocumentTemplate = 4,
    MModalTemplate = 8,
}

But since you can’t change it, there’s not much you can do.