dotnet api and sitelinks take 2

[Paigey]

Hi all, back in August I posted some requests for help with how adding
and removing sitelinks works and would like to say a big thanks to
Pete Lavetsky and Anash Oommen for their replies and advice.

Since the last post I have built an app for the google heads here to
use to keep track of sitelinks across various accounts but have become
a bit stuck on actually uploading sitelinks to an account. I'm using a
particular account and campaign as a test account whilst checking
everything is running smoothly but when I try to run even the example
c# that Anash provided here 
http://adwordsapi.blogspot.com/2010/09/discover-v201003-using-ad-sitelinks.html
I get errors when trying to parse the campaignid. I've had a quick
look around the web and seen a few people with similar problems but
not managed to find a solution that works. I've also tried the
Google.Api.Ads.AdWords.v201101 version but get the same error trying
to parse the campaignid.

The code I have based on Anash's example at the url above is further
down and the error I get back is:

Exception Details: System.FormatException: Input string was not in a
correct format. (Line: 39)

Line 37:         if (linkId != 1)
Line 38:         {
Line 39:             RemoveActiveSitelinkExtension(campaignId,
long.Parse(linkId.ToString()));
Line 40:         }
Line 41:

//Begin code
public static AdWordsUser user = new AdWordsUser();
    public static CampaignAdExtensionService campaignExtensionService
=
(CampaignAdExtensionService)user.GetService(AdWordsService.v201003.CampaignAdExtensionService);

    protected void Page_Load(object sender, EventArgs e)
    {

    }

    protected void Send_Click(object sender, EventArgs e)
    {
        string cid = "12345678"; //not real, just an example id
        long campaignId = long.Parse(cid);

        Sitelink siteLink1 = new Sitelink();
        siteLink1.displayText = "Bet Now Test";
        siteLink1.destinationUrl = "http://www.sportingbet.com";;

        Sitelink siteLink2 = new Sitelink();
        siteLink2.displayText = "Free Bet Test";
        siteLink2.destinationUrl = "http://www.sportingbet.com";;

        long? linkId = GetActiveSitelinkExtension(campaignId);

        if (linkId != 1)
        {
            RemoveActiveSitelinkExtension(campaignId,
long.Parse(linkId.ToString()));
        }

        AddSitelinks(campaignId, new Sitelink[] { siteLink1,
siteLink2 });
    }

    private long? GetActiveSitelinkExtension(long campaignId)
    {
        long? siteLinkExtensionId = null;

        // Get the campaign ad extension containing sitelinks.
        CampaignAdExtensionSelector selector = new
CampaignAdExtensionSelector();
        selector.campaignIds = new long[] { campaignId };
        selector.statuses = new CampaignAdExtensionStatus[]
{ CampaignAdExtensionStatus.ACTIVE };

        CampaignAdExtensionPage page =
campaignExtensionService.get(selector);
        if (page != null && page.entries != null)
        {
            foreach (CampaignAdExtension extension in page.entries)
            {
                if (extension.adExtension is SitelinksExtension)
                {
                    siteLinkExtensionId = extension.adExtension.id;
                    break;
                }
            }
        }
        return siteLinkExtensionId;
    }

    private SitelinksExtension RemoveActiveSitelinkExtension(long
campaignId, long siteLinkExtensionId)
    {
        CampaignAdExtension campaignAdExtension = new
CampaignAdExtension();
        campaignAdExtension.campaignId = campaignId;
        campaignAdExtension.adExtension = new AdExtension();
        campaignAdExtension.adExtension.id = siteLinkExtensionId;

        CampaignAdExtensionOperation operation = new
CampaignAdExtensionOperation();
        operation.@operator = Operator.REMOVE;
        operation.operand = campaignAdExtension;
        CampaignAdExtensionReturnValue retVal =
            campaignExtensionService.mutate(new
CampaignAdExtensionOperation[] {
          operation });
        if (retVal != null && retVal.value != null &&
retVal.value.Length > 0 &&
            retVal.value[0].adExtension is SitelinksExtension)
        {
            return (SitelinksExtension)retVal.value[0].adExtension;
        }
        else
        {
            return null;
        }
    }

    private SitelinksExtension AddSitelinks(long campaignId,
Sitelink[]
    siteLinks)
    {
        SitelinksExtension siteLinkExtension = new
SitelinksExtension();
        siteLinkExtension.sitelinks = siteLinks;

        CampaignAdExtension campaignAdExtension = new
CampaignAdExtension();
        campaignAdExtension.adExtension = siteLinkExtension;
        campaignAdExtension.campaignId = campaignId;

        CampaignAdExtensionOperation operation = new
CampaignAdExtensionOperation();
        operation.@operator = Operator.ADD;
        operation.operand = campaignAdExtension;

        CampaignAdExtensionReturnValue retVal =
            campaignExtensionService.mutate(new
CampaignAdExtensionOperation[] {
          operation });
        if (retVal != null && retVal.value != null &&
retVal.value.Length > 0)
        {
            return retVal.value[0].adExtension as SitelinksExtension;
        }
        else
        {
            return null;
        }
    }
//end code


Any help with this would be great!

Kind regards

Paigey

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