ตอนที่ 6 : Show Case 2 : Login User Password (iOS C# (Xamarin.iOS) and Mobile Services)

        partial void btnLogin_TouchUpInside(UIButton sender)
        {

            client = new MobileServiceClient(ApplicationURL, ApplicationKey);

            memberTable = client.GetTable<MyMember>();

            var data = memberTable.Where(item => item.Username == txtUsername.Text 
                && item.Password == this.txtPassword.Text).ToListAsync();

            if (data.Count == 0)
            {
                new UIAlertView("Result", "Incorrect Username and Password!", null, "OK", null).Show();
            }
            else
            {
                loginFlag = true;
            }

        }

        public override void PrepareForSegue(UIStoryboardSegue segue, NSObject sender)
        {
            if (loginFlag)
            {
                ((DetailViewController)segue.DestinationViewController).SetDetailItem(this.txtUsername.Text);
            }
        }

        public override bool ShouldPerformSegue(string segueIdentifier, NSObject sender)
        {
            if (!loginFlag)
            {
                return false;
            }
            else
            {
                return true;
            }
        }

        object detailItem;

        public void SetDetailItem(object newDetailItem)
        {
            if (detailItem != newDetailItem)
            {
                detailItem = newDetailItem;
            }
        }

        private void LoadInfo()
        {

            client = new MobileServiceClient(ApplicationURL, ApplicationKey);

            string strUsername = detailItem.ToString();

            memberTable = client.GetTable<MyMember>();

            var info = memberTable.Where(item => item.Username == strUsername).ToCollectionAsync();
            if (info.Count > 0)
            {
				MyMember member = info[0];
                lblUsername.Text = member.Username.ToString();
                lblPassword.Text = member.Password.ToString();
                lblName.Text = member.Name.ToString();
                lblEmail.Text = member.Email.ToString();
                lblTel.Text = member.Tel.ToString();
            }

        }

using System;
using System.Drawing;
using System.Collections.Generic;

using MonoTouch.Foundation;
using MonoTouch.UIKit;

using Microsoft.WindowsAzure.MobileServices;
using Newtonsoft.Json;

namespace iOSApp
{

    public class MyMember
    {
        public int Id { get; set; }

        [JsonProperty(PropertyName = "username")]
        public string Username { get; set; }

        [JsonProperty(PropertyName = "password")]
        public string Password { get; set; }

        [JsonProperty(PropertyName = "name")]
        public string Name { get; set; }

        [JsonProperty(PropertyName = "email")]
        public string Email { get; set; }

        [JsonProperty(PropertyName = "tel")]
        public string Tel { get; set; }
    }

    public partial class RootViewController : UIViewController
    {

        public const string ApplicationURL = @"https://thaicreate.azure-mobile.net/";
        public const string ApplicationKey = @"IqeWShAjBflTUrTaaGUNJRyZDpcyeh72";

        private MobileServiceClient client; // Mobile Service Client references
        private IMobileServiceTable<MyMember> memberTable; // Mobile Service Table used to access data  

        private bool loginFlag = false;

        public RootViewController(IntPtr handle)
            : base(handle)
        {
        }

        public override void ViewDidLoad()
        {
            base.ViewDidLoad();
        }

        public override void DidReceiveMemoryWarning()
        {
            // Releases the view if it doesn't have a superview.
            base.DidReceiveMemoryWarning();
        }


        partial void btnLogin_TouchUpInside(UIButton sender)
        {

            client = new MobileServiceClient(ApplicationURL, ApplicationKey);

            memberTable = client.GetTable<MyMember>();

            var data = memberTable.Where(item => item.Username == txtUsername.Text 
                && item.Password == this.txtPassword.Text).ToListAsync();

            if (data.Count == 0)
            {
                new UIAlertView("Result", "Incorrect Username and Password!", null, "OK", null).Show();
            }
            else
            {
                loginFlag = true;
            }

        }

        public override void PrepareForSegue(UIStoryboardSegue segue, NSObject sender)
        {
            if (loginFlag)
            {
                ((DetailViewController)segue.DestinationViewController).SetDetailItem(this.txtUsername.Text);
            }
        }

        public override bool ShouldPerformSegue(string segueIdentifier, NSObject sender)
        {
            if (!loginFlag)
            {
                return false;
            }
            else
            {
                return true;
            }
        }

    }

}

using System;
using System.Drawing;

using MonoTouch.Foundation;
using MonoTouch.UIKit;

using Microsoft.WindowsAzure.MobileServices;
using Newtonsoft.Json;


namespace iOSApp
{

    public partial class DetailViewController : UIViewController
    {

        public const string ApplicationURL = @"https://thaicreate.azure-mobile.net/";
        public const string ApplicationKey = @"IqeWShAjBflTUrTaaGUNJRyZDpcyeh72";

        private MobileServiceClient client; // Mobile Service Client references
        private IMobileServiceTable<MyMember> memberTable; // Mobile Service Table used to access data  

        object detailItem;

        public void SetDetailItem(object newDetailItem)
        {
            if (detailItem != newDetailItem)
            {
                detailItem = newDetailItem;
            }
        }

        public DetailViewController(IntPtr handle)
            : base(handle)
        {
        }

        public override void DidReceiveMemoryWarning()
        {
            // Releases the view if it doesn't have a superview.
            base.DidReceiveMemoryWarning();

            // Release any cached data, images, etc that aren't in use.
        }

        public override void ViewDidLoad()
        {
            base.ViewDidLoad();
            this.LoadInfo();
        }

        private void LoadInfo()
        {

            client = new MobileServiceClient(ApplicationURL, ApplicationKey);

            string strUsername = detailItem.ToString();

            memberTable = client.GetTable<MyMember>();

            var info = memberTable.Where(item => item.Username == strUsername).ToCollectionAsync();
            if (info.Count > 0)
            {
				MyMember member = info[0];
                lblUsername.Text = member.Username.ToString();
                lblPassword.Text = member.Password.ToString();
                lblName.Text = member.Name.ToString();
                lblEmail.Text = member.Email.ToString();
                lblTel.Text = member.Tel.ToString();
            }

        }

    }
}