What is required for QueryTask Credentials ?

[ctsurveyors]

Hello

I'm trying to do a query during a Periodic Background Agent on a Secure Service and would like to just get the credentials from the app's local storage after the user has already sign in at least once.

Here is my code..

QueryTask queryTask =
                new QueryTask("http://servicesbeta4.esri.com/arcgis/rest/services/SaveTheBay/FeatureServer/0");
            queryTask.Credentials = WHAT IS REQUIRED HERE????
            queryTask.ExecuteCompleted += QueryTask_ExecuteCompleted;

            ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query();
            query.Where = "Confirmed = '1'";

            // This query will just populate the drop-down, so no need to return geometry
            query.ReturnGeometry = false;
            query.OutFields.Add("*");
            queryTask.ExecuteAsync(query);

What comes after

queryTask.Credentials =

I know the username and password is "user1", but I just don't know how to submit that in code.

Thanks

[jenniferdnery]

using System.Net;

            queryTask.Credentials = new NetworkCredential("userName", "password", "domain");

[ctsurveyors]

Thanks Jennifer

Unfortunately that wasn't the problem though. I don't think i can do a query for attributes during a periodic task because its on the UI thread according to these responses from other people that got the same error.

I keep getting "Invalid cross thread access exception" when it hits

QueryTask queryTask =
                new QueryTask("http://servicesbeta4.esri.com/arcgis/rest/services/SaveTheBay/FeatureServer/0");

and found these links for solutions http://stackoverflow.com/questions/8...-periodic-task

I don't have much time to mess with it, is it possible to run a attribute query during a periodic task?

using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;
using System.Collections.Generic;
using System;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Data;
using ESRI.ArcGIS.Client;
using ESRI.ArcGIS.Client.Geometry;
using ESRI.ArcGIS.Client.Symbols;
using ESRI.ArcGIS.Client.FeatureService;
using ESRI.ArcGIS.Client.Tasks;
using Microsoft.Phone.Scheduler;
using System.Net;

namespace SeaLifeScheduledTask
{

    public class ScheduledAgent : ScheduledTaskAgent
    {

        private static volatile bool _classInitialized;

        // Activate identity manager.
        /// <remarks>
        /// ScheduledAgent constructor, initializes the UnhandledException handler
        /// </remarks>
        public ScheduledAgent()
        {

            IdentityManager.Current.ChallengeMethod = Challenge;
            
            //ORGINIAL CODE HERE
            if (!_classInitialized)
            {
                _classInitialized = true;
                // Subscribe to the managed exception handler
                Deployment.Current.Dispatcher.BeginInvoke(delegate
                {
                    Application.Current.UnhandledException += ScheduledAgent_UnhandledException;
                });
            }
        }

        

        /// Code to execute on Unhandled Exceptions
        private void ScheduledAgent_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
        {
            if (System.Diagnostics.Debugger.IsAttached)
            {
                // An unhandled exception has occurred; break into the debugger
                System.Diagnostics.Debugger.Break();
            }
        }


        /// <summary>
        /// Agent that runs a scheduled task
        /// </summary>
        /// <param name="task">
        /// The invoked task
        /// </param>
        /// <remarks>
        /// This method is called when a periodic or resource intensive task is invoked
        /// </remarks>
        protected override void OnInvoke(ScheduledTask task)
        {
            //TODO: Add code to perform your task in background
            IdentityManager.Current.ChallengeMethod = Challenge;
            
            //Intial Query to get scheduled Jobs
            QueryTask queryTask =
                new QueryTask("http://servicesbeta4.esri.com/arcgis/rest/services/SaveTheBay/FeatureServer/0");
            queryTask.Credentials = new NetworkCredential("user1", "user1", "servicesbeta4.esri.com"); 
            queryTask.ExecuteCompleted += QueryTask_ExecuteCompleted;

            ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query();
            query.Where = "Confirmed = '1'";

            // This query will just populate the drop-down, so no need to return geometry
            query.ReturnGeometry = false;
            query.OutFields.Add("*");
            queryTask.ExecuteAsync(query);
        }

        private void Challenge(string url,
                      IdentityManager.CredentialCompleteHandler callback,
                      IdentityManager.GenerateTokenOptions options)
        {
            // Pop-up dialog box to enter credentials - user action to call GenerateCredentialAsync. 
            IdentityManager.Current.GenerateCredentialAsync(url, "user1", "user1",
                (credential, ex) =>
                // lambda used to create anonymous block so call to GenerateCredentialAsync is self-contained.
                {
                    callback(credential, ex);
                },
                options);                 
        }

        void QueryTask_ExecuteCompleted(object sender, ESRI.ArcGIS.Client.Tasks.QueryEventArgs args)
        {
            FeatureSet featureSet = args.FeatureSet;

            //Get Total Jobs in Que
            int JobCount = featureSet.Features.Count;
            //string LastJobType = featureSet.Features

            ShellTile PrimaryTile = ShellTile.ActiveTiles.First();

            if (PrimaryTile != null)
            {
                StandardTileData tile = new StandardTileData();

                //tile.BackgroundImage = new Uri("images/sadface.png", UriKind.Relative);
                tile.Count = JobCount;
                tile.Title = "added by background agent";
                tile.BackTitle = "Get to work dude";
                tile.BackContent = "Buddy";
                PrimaryTile.Update(tile);
            }

            NotifyComplete();
        }
    }
}

[ctsurveyors]

Yay I got it to work see attached for for querying during an background agent on windows phone

using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;
using System.Collections.Generic;
using System;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Data;
using ESRI.ArcGIS.Client;
using ESRI.ArcGIS.Client.Geometry;
using ESRI.ArcGIS.Client.Symbols;
using ESRI.ArcGIS.Client.FeatureService;
using ESRI.ArcGIS.Client.Tasks;
using Microsoft.Phone.Scheduler;
using System.Net;

namespace SeaLifeScheduledTask
{

    public class ScheduledAgent : ScheduledTaskAgent
    {

        private static volatile bool _classInitialized;

        // Activate identity manager.
        /// <remarks>
        /// ScheduledAgent constructor, initializes the UnhandledException handler
        /// </remarks>
        public ScheduledAgent()
        {

            IdentityManager.Current.ChallengeMethod = Challenge;
            
            //ORGINIAL CODE HERE
            if (!_classInitialized)
            {
                _classInitialized = true;
                // Subscribe to the managed exception handler
                Deployment.Current.Dispatcher.BeginInvoke(delegate
                {
                    //Intial Query to get scheduled Jobs
                    QueryTask queryTask =
                        new QueryTask("http://servicesbeta4.esri.com/arcgis/rest/services/SaveTheBay/FeatureServer/0");
                    queryTask.Credentials = new NetworkCredential("user1", "user1", "servicesbeta4.esri.com");
                    queryTask.ExecuteCompleted += QueryTask_ExecuteCompleted;

                    ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query();
                    query.Where = "Confirmed = '1'";

                    // This query will just populate the drop-down, so no need to return geometry
                    query.ReturnGeometry = false;
                    query.OutFields.Add("*");
                    queryTask.ExecuteAsync(query);
                    Application.Current.UnhandledException += ScheduledAgent_UnhandledException;
                });
            }
        }

        

        /// Code to execute on Unhandled Exceptions
        private void ScheduledAgent_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
        {
            if (System.Diagnostics.Debugger.IsAttached)
            {
                // An unhandled exception has occurred; break into the debugger
                System.Diagnostics.Debugger.Break();
            }
        }


        /// <summary>
        /// Agent that runs a scheduled task
        /// </summary>
        /// <param name="task">
        /// The invoked task
        /// </param>
        /// <remarks>
        /// This method is called when a periodic or resource intensive task is invoked
        /// </remarks>
        protected override void OnInvoke(ScheduledTask task)
        {
            //TODO: Add code to perform your task in background
            IdentityManager.Current.ChallengeMethod = Challenge;
            
            
        }

        private void Challenge(string url,
                      IdentityManager.CredentialCompleteHandler callback,
                      IdentityManager.GenerateTokenOptions options)
        {
            // Pop-up dialog box to enter credentials - user action to call GenerateCredentialAsync. 
            IdentityManager.Current.GenerateCredentialAsync(url, "user1", "user1",
                (credential, ex) =>
                // lambda used to create anonymous block so call to GenerateCredentialAsync is self-contained.
                {
                    callback(credential, ex);
                },
                options);                 
        }

        void QueryTask_ExecuteCompleted(object sender, ESRI.ArcGIS.Client.Tasks.QueryEventArgs args)
        {
            FeatureSet featureSet = args.FeatureSet;

            //Get Total Jobs in Que
            int JobCount = featureSet.Features.Count;
            //string LastJobType = featureSet.Features

            ShellTile PrimaryTile = ShellTile.ActiveTiles.First();

            if (PrimaryTile != null)
            {
                StandardTileData tile = new StandardTileData();

                //tile.BackgroundImage = new Uri("images/sadface.png", UriKind.Relative);
                tile.Count = JobCount;
                tile.Title = "added by background agent";
                tile.BackTitle = "Get to work dude";
                tile.BackContent = "Buddy";
                PrimaryTile.Update(tile);
            }

            NotifyComplete();
        }
    }
}