print barcode in crystal report vb.net ACCESS CLOUD TABLE STORAGE in C#

Encode ECC200 in C# ACCESS CLOUD TABLE STORAGE

CHAPTER 2 ACCESS CLOUD TABLE STORAGE
Encoding ECC200 In Visual C#.NET
Using Barcode generator for VS .NET Control to generate, create DataMatrix image in Visual Studio .NET applications.
www.OnBarcode.com
Data Matrix Reader In C#
Using Barcode decoder for VS .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
_addressTableService.TableContext() as AddressTableContext; ContinuationToken continuationToken = null; do { var topTenAddress = tableContext.CreateQuery<Address>(tableContext.TableName).Take(10); var query = topTenAddress as DataServiceQuery<Address>; if (continuationToken != null) { query = query.AddQueryOption("NextPartitionKey", continuationToken.PartitionKey); if (continuationToken.RowKey != null) { query = query.AddQueryOption("NextRowKey", continuationToken.RowKey); } } var response = query.Execute() as QueryOperationResponse; if (response.Headers.ContainsKey("x-ms-continuation-NextPartitionKey")) { continuationToken.PartitionKey = response.Headers["x-ms-continuation-NextPartitionKey"]; if (response.Headers.ContainsKey("x-ms-continuation-NextRowKey")) { continuationToken.RowKey = response.Headers["x-ms-continuation-NextRowKey"]; } } else { continuationToken = null; } } while (continuationToken != null); } public class ContinuationToken { public string PartitionKey { get; set; } public string RowKey { get; set; } } There are rich technologies available to retrieve the data from cloud table storage, including the web role service offered by the Azure Framework, LINQ or REST, or tools such as Fiddler using the HTTP protocol. Next we are going to learn other basic cloud table storage data I/O actions deleting and updating data from cloud table storage.
Drawing QR-Code In C#.NET
Using Barcode maker for Visual Studio .NET Control to generate, create QR-Code image in Visual Studio .NET applications.
www.OnBarcode.com
PDF417 Drawer In C#.NET
Using Barcode drawer for VS .NET Control to generate, create PDF-417 2d barcode image in Visual Studio .NET applications.
www.OnBarcode.com
CHAPTER 2 ACCESS CLOUD TABLE STORAGE
Painting Barcode In C#.NET
Using Barcode printer for VS .NET Control to generate, create Barcode image in VS .NET applications.
www.OnBarcode.com
Paint ECC200 In Visual C#
Using Barcode generation for Visual Studio .NET Control to generate, create DataMatrix image in Visual Studio .NET applications.
www.OnBarcode.com
Deleting and Updating an Entity in a Single Cloud Data Storage Table
Linear Barcode Creation In C#
Using Barcode generation for VS .NET Control to generate, create 1D image in .NET applications.
www.OnBarcode.com
Drawing ISBN - 10 In Visual C#
Using Barcode drawer for Visual Studio .NET Control to generate, create Bookland EAN image in .NET framework applications.
www.OnBarcode.com
Below are some concepts we should be aware of before we move to the exercise for deleting and updating data from cloud table storage. Essentially, the class DataServiceContext plays a core role for all cloud table storage I/O, including the data retrieving action we have been using so far. If you go back to look at the project we created, the base class of AddressTableContext is in a hierarchical relationship with DataServiceContext; you can trace down like this: AddressTableContext TableContext TableStorageDataServiceContext DataServiceContext. For each entity table in Azure cloud table storage there is an internal property called tracked that is assigned when a table is created. This is for the DataServiceContext to track the concurrency of the data table. The options for the value for this property are AppendOnly, OverwriteChanges, PreserveChanges, and NoTracking. It is mandatory to assign a value to this property before the data I/O actions, such as updating, inserting, and deleting. How to determine the selection of this attribute should be analyzed on a case-by-case basis. The default setting is AppendOnly. This option means the server will not load the entity instance if the instance is already presented in the caches. When this option is selected and the entity is already tracked by a previous retrieve call, the DataServiceContext object will not update. There is a chance the update will fail unless the application has very good information about the previous action's updating call. If the OverwriteChanges option is selected, the DataServiceContext always loads the entity instance from the server and keeps it up to date and overwrites the previously tracked entity. If PreserveChanges is selected, any property changes made to the entity object DataServiceContext are preserved. This should be a good choice when recovering from concurrency errors is required. Using PreserveChanges is the best way to ensure that the data is updated, because the server always loads the entity prior to update. The price to pay is less efficient performance. If NoTracking is selected, the AttachTo() method must be called prior to updating the data.
Decoding Data Matrix In C#.NET
Using Barcode decoder for .NET framework Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
DataMatrix Reader In None
Using Barcode scanner for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Use LINQ to put data into the DataServiceContext object, and use a C# class as a data container object to hold the values to be updated. Add the C# object back to the same DataServiceContext object for update by calling the AttachTo() method and use the same object to perform update actions. Call the method SaveChanges() using the instance of DataServiceContext class to send the update request to the server.
Encoding PDF417 In None
Using Barcode maker for Online Control to generate, create PDF-417 2d barcode image in Online applications.
www.OnBarcode.com
Barcode Drawer In None
Using Barcode printer for Software Control to generate, create Barcode image in Software applications.
www.OnBarcode.com
Next we go back to the main topic of this exercise. In order to reuse the code in the next exercise we are going to abstract our object architecture based on the previous exercise to introduce three interfaces ICloudEntity, ITableContext, and ICloudTableStorageService and three new classes
Scan 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
Making Matrix Barcode In .NET Framework
Using Barcode generator for ASP.NET Control to generate, create Matrix 2D Barcode image in ASP.NET applications.
www.OnBarcode.com
2D Barcode Drawer In Visual Basic .NET
Using Barcode creation for .NET framework Control to generate, create Matrix image in .NET framework applications.
www.OnBarcode.com
Code 39 Full ASCII Scanner In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Barcode Scanner In VS .NET
Using Barcode reader for .NET framework Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
EAN13 Printer In Visual Studio .NET
Using Barcode generator for .NET Control to generate, create European Article Number 13 image in .NET applications.
www.OnBarcode.com
Read Code-39 In Visual Basic .NET
Using Barcode recognizer for VS .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Decoding USS-128 In Visual C#
Using Barcode reader for .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Copyright © OnBarcode.com . All rights reserved.