c# itextsharp create barcode USING CLOUD SERVICES AS DATA STORES in Microsoft Word

Creating QR in Microsoft Word USING CLOUD SERVICES AS DATA STORES

CHAPTER 3 USING CLOUD SERVICES AS DATA STORES
QR Code JIS X 0510 Generator In None
Using Barcode creator for Microsoft Word Control to generate, create QR Code 2d barcode image in Word applications.
www.OnBarcode.com
Printing UPC Symbol In None
Using Barcode generator for Microsoft Word Control to generate, create UPC-A Supplement 2 image in Microsoft Word applications.
www.OnBarcode.com
Figure 3 34. Notepad project items in Solution Explorer 3. Open NotepadViewModel.cs, found under the Notepad project, and paste the following c# codes.
Print GS1 128 In None
Using Barcode creation for Microsoft Word Control to generate, create EAN 128 image in Office Word applications.
www.OnBarcode.com
Create GS1 - 13 In None
Using Barcode maker for Microsoft Word Control to generate, create EAN-13 image in Microsoft Word applications.
www.OnBarcode.com
Specifying the Namespaces and Applying INotifyPropertyChanged
Barcode Drawer In None
Using Barcode drawer for Microsoft Word Control to generate, create Barcode image in Word applications.
www.OnBarcode.com
Code 128 Code Set B Maker In None
Using Barcode drawer for Office Word Control to generate, create ANSI/AIM Code 128 image in Word applications.
www.OnBarcode.com
The namespace Notepad.NotepadServiceProxy allows you to work with the web service NotepadService you referenced. System.IO.IsolatedStorage will allow you to save the registered user ID so that the application will know what notes to work with in the database. System.ComponentModel will allow you to implement the INotifyChanged interface that can raise the property changed events, allowing the controls that are bound to properties like Notes, SelectedNotes, ShowNoteList, and NeedUserId to respond to the changes. System.Linq will allow you to query to objects with syntax that resembles the SQL statement. using using using using using using using System; System.Windows; System.IO.IsolatedStorage; System.ComponentModel; Notepad.NotepadServiceProxy; System.Collections.ObjectModel; System.Linq;
Barcode Generator In None
Using Barcode encoder for Office Word Control to generate, create Barcode image in Word applications.
www.OnBarcode.com
MSI Plessey Printer In None
Using Barcode printer for Microsoft Word Control to generate, create MSI Plessey image in Office Word applications.
www.OnBarcode.com
namespace Notepad {
Generate Quick Response Code In VS .NET
Using Barcode creation for ASP.NET Control to generate, create Quick Response Code image in ASP.NET applications.
www.OnBarcode.com
Encode QR In Visual Studio .NET
Using Barcode generator for .NET Control to generate, create QR-Code image in VS .NET applications.
www.OnBarcode.com
CHAPTER 3 USING CLOUD SERVICES AS DATA STORES
Creating GS1 RSS In Java
Using Barcode creation for Java Control to generate, create GS1 DataBar Truncated image in Java applications.
www.OnBarcode.com
PDF-417 2d Barcode Decoder In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
/// <summary> /// Settings class is singleton instance that will contain various application /// configuration that will be used by all the controls of the application. /// </summary> public sealed class NotepadViewModel : INotifyPropertyChanged {
UPCA Creator In None
Using Barcode printer for Excel Control to generate, create UCC - 12 image in Excel applications.
www.OnBarcode.com
Drawing GTIN - 12 In Objective-C
Using Barcode maker for iPad Control to generate, create GTIN - 12 image in iPad applications.
www.OnBarcode.com
Initializing the Variables
Read Barcode In Java
Using Barcode Control SDK for BIRT reports Control to generate, create, read, scan barcode image in Eclipse BIRT applications.
www.OnBarcode.com
Paint Code 3 Of 9 In Java
Using Barcode maker for Android Control to generate, create Code39 image in Android applications.
www.OnBarcode.com
There are many variables that will be added to NotepadViewModel that will control the behavior of the UI controls. Please refer to the comment in the following code for an explanation of what significance the properties have for the UI controls. // For creating Singleton instance public static NotepadViewModel Instance = new NotepadViewModel(); // For calling Notepad web service private ServiceClient _svc; // Populated when the user registers firstime // and the value is saved to the isolated storage public Guid UserId { get { if (IsolatedStorageSettings.ApplicationSettings.Contains("UserId")) { return (Guid)IsolatedStorageSettings.ApplicationSettings["UserId"]; } else { return Guid.Empty; } } set { if (IsolatedStorageSettings.ApplicationSettings.Contains("UserId")) { IsolatedStorageSettings.ApplicationSettings["UserId"] = value; } else { IsolatedStorageSettings.ApplicationSettings.Add("UserId", value); } // Raise property changed event to alert user registration control // so that if the UserId is empty user registration screen // will be prompted for the user to register. // // To see how raise property changed event works with control Binding // see Binding attributes on ucUserRegistration control in MainPage.xaml this.RaisePropertyChanged("UserId"); this.RaisePropertyChanged("NeedUserId");
Generating Barcode In VB.NET
Using Barcode encoder for .NET Control to generate, create Barcode image in .NET framework applications.
www.OnBarcode.com
Decode PDF-417 2d Barcode In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
CHAPTER 3 USING CLOUD SERVICES AS DATA STORES
Decode UPC-A Supplement 5 In Visual Studio .NET
Using Barcode decoder for .NET framework Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Paint Barcode In Objective-C
Using Barcode generation for iPhone Control to generate, create Barcode image in iPhone applications.
www.OnBarcode.com
} } // Checks to see if the UserId exist in the isolated storage // and make sure UserId is not an empty Guid public bool NeedUserId { get { return !IsolatedStorageSettings.ApplicationSettings.Contains("UserId") || (Guid)IsolatedStorageSettings.ApplicationSettings["UserId"] == Guid.Empty; } } // ShowNoteList is bound to NoteListUserControl in the MainPage // and it will hide if false and else unhide if true. private bool _showNoteList = false; public bool ShowNoteList { get { return _showNoteList; } set { _showNoteList = value; this.RaisePropertyChanged("ShowNoteList"); } } // SelectedNote is populated from NoteListUserControl // when the user selects the note from the list box. // SelectedNote is then used in MainPage by txtNote and // txtNoteName to populate to textbox content. private NoteDto _note; public NoteDto SelectedNote { get { return _note; } set { _note = value; this.RaisePropertyChanged("SelectedNote"); } } // Collection of NoteDto is populated by calling GetNotes service call // and all user notes will be contained in this collection. private ObservableCollection<NoteDto> _notes; public ObservableCollection<NoteDto> Notes
CHAPTER 3 USING CLOUD SERVICES AS DATA STORES
{ get { return _notes; } set { _notes = value; this.RaisePropertyChanged("Notes"); } }
Adding the Constructor
In the constructor, you will be adding event handlers for the service calls. GetNotesCompleted will return all the user notes. AddNote, UpdateNote, and DeleteNote will add, update, and delete the note and return successfully if no error occurs, otherwise the error will be reported back to the callbacks. In the constructor ServiceClient, web service proxy, will be initialized and the RebindData method that makes the call to the GetNotes method will populate the Notes property. private NotepadViewModel() { _svc = new ServiceClient(); _svc.GetNotesCompleted += new EventHandler<GetNotesCompletedEventArgs>(_svc_GetNotesCompleted); _svc.AddNoteCompleted += new EventHandler<AddNoteCompletedEventArgs>(_svc_AddNoteCompleted); _svc.UpdateNoteCompleted += new EventHandler<AsyncCompletedEventArgs>(_svc_UpdateNoteCompleted); _svc.AddUserCompleted += new EventHandler<AddUserCompletedEventArgs>(_svc_AddUserCompleted); _svc.DeleteNoteCompleted += new EventHandler<AsyncCompletedEventArgs>(_svc_DeleteNoteCompleted); if (this.NeedUserId) { this.Notes = new ObservableCollection<NoteDto>(); } else { this.RebindData(); } } // To rebind the data GetNotes will be called to retrieve // all the user notes and resetting Notes value. public void RebindData() { _svc.GetNotesAsync(this.UserId); }
Copyright © OnBarcode.com . All rights reserved.