Standard ADO.NET Access to Exact Online
The Exact Online ADO.NET Provider offers the most natural way to access Exact Online data from any
.NET application. Simply use Exact Online Data Provider objects to connect and access data just as you
would access any traditional database. You will be able to use the Exact Online Data Provider through
Visual Studio Server Explorer, in code through familiar classes, and in data controls like DataGridView, GridView,
DataSet, etc.
The CData ADO.NET Provider for Exact Online hides the complexity of accessing data and provides additional powerful security features,
smart caching, batching, socket management, and more.
Working with DataAdapters, DataSets, DataTables, etc.
The Exact Online Data Provider has the same ADO.NET architecture as the native .NET data providers for SQL Server
and OLEDB, including: Exact OnlineConnection, Exact OnlineCommand, Exact OnlineDataAdapter, Exact OnlineDataReader,
Exact OnlineDataSource, Exact OnlineParameter, etc. Because of
this you can now access Exact Online data in an easy, familiar way.
For example:
using (Exact OnlineConnection conn = new Exact OnlineConnection("...")) {
string select = "SELECT * FROM Contacts";
Exact OnlineCommand cmd = new Exact OnlineCommand(select, conn);
Exact OnlineDataAdapter adapter = new Exact OnlineDataAdapter(cmd);
using (adapter) {
DataTable table = new DataTable();
adapter.Fill(table);
...
}
}
More Than Read-Only: Full Update/CRUD Support
Exact Online Data Provider goes beyond read-only functionality to deliver full
support for Create, Read, Update, and Delete operations (CRUD). Your end-users can interact
with the data presented by the Exact Online Data Provider as easily as interacting with
a database table.
using (Exact OnlineConnection connection = new Exact OnlineConnection(connectionString)) {
Exact OnlineDataAdapter dataAdapter = new Exact OnlineDataAdapter(
"SELECT Id, Where FROM Contacts", connection);
dataAdapter.UpdateCommand = new Exact OnlineCommand(
"UPDATE Contacts SET Where = @Where " +
"WHERE Id = @ID", connection);
dataAdapter.UpdateCommand.Parameters.AddWithValue("@Where", "Where");
dataAdapter.UpdateCommand.Parameters.AddWithValue("@Id", "80000173-1387137645");
DataTable ContactsTable = new DataTable();
dataAdapter.Fill(ContactsTable);
DataRow firstrow = ContactsTable.Rows[0];
firstrow["Where"] = "New Location";
dataAdapter.Update(ContactsTable);
}
ADO.NET Provider Performance
With traditional approaches to remote access, performance bottlenecks can spell disaster
for applications. Regardless if an application is created for internal use, a commercial project, web, or mobile
application, slow performance can rapidly lead to project failure. Accessing data from any remote source has the potential
to create these problems. Common issues include:
- Network Connections - Slow network connections and latency issues are common in mobile applications.
- Service Delays - Delays due to service interruptions, resulting in server hardware or software updates.
- Large Data - Intentional or unintentional requests for large amounts of data.
- Disconnects - Complete loss of network connectivity.
The CData ADO.NET Provider for Exact Online solves these issues by supporting powerful smart caching technology that can greatly
improve the performance and dramatically reduce application bottlenecks.
Smart Caching
Smart caching is a configurable option that works by storing queried data into a local database. Enabling smart
caching creates a persistent local cache database that contains a replica of data retrieved from the remote source.
The cache database is small, lightweight, blazing-fast, and it can be shared by multiple
connections as persistent storage.
Caching with our ADO.NET Providers is highly configurable, including options for:
-
Auto Cache - Maintain an automatic local cache of data on all requests. The provider will automatically
load data into the cache database each time you execute a SELECT query. Each row returned by the query will
be inserted or updated as necessary into the corresponding table in the cache database.
-
Explicit Cache - Cache only on demand. Developers decide exactly what data gets stored in the cache
and when it is updated. Explicit caching provides full control over the cache contents by using explicit
execution of CACHE statements.
- No Cache - All requests access only live data and no local cache file is created.
This powerful caching functionality increases application performance and allows applications to disconnect
and continue limited functioning without writing code for additional local storage and/or
data serialization/deserialization.
More information about ADO.NET Provider caching and best caching practices is available in the included
help files.
Visual Studio Integration & Server Explorer
Working with the new Exact Online ADO.NET Provider is easy. As a fully-managed .NET Data Provider, the Exact Online Data Provider
integrates seamlessly with the Visual Studio development environment as well as any .NET application.
As an ADO.NET Data Provider, Exact Online ADO.NET Provider can be used to access and explore
Exact Online data directly from the Visual Studio Server Explorer.
It's easy. As a standard ADO.NET adapter, developers can connect the Server Explorer to Exact Online ADO.NET Provider
just like connecting to any standard database.
- Add a new Data Connection from the Server Explorer and select the Exact Online Data Source
- Configure the basic connection properties to access your Exact Online account data.
Explore all of the data available! Exact Online ADO.NET Provider makes it easy to access live Exact Online data from Visual Studio.
- After configuring the connection, explore the feeds, views, and services provided by the Exact Online Data Source.
- These constructs return live Exact Online data that developers can work with directly from within Visual Studio!
Developer Integration: Databind to Exact Online
Connecting Web, Desktop, and Mobile .NET applications with Exact Online is just like working with SQL Server. It is even
possible to integrate Exact Online ADO.NET Provider into applications without writing code.
Developers are free to access the Exact Online ADO.NET Provider in whatever way they like best. Either visually through
the Visual Studio Winforms or Webforms designers, or directly through code.
- Developers can connect the Exact Online Data Source directly to form components by configuring the object's smart tags.
- Add a new Data Connection from the Server Explorer and select the Exact Online Data Source. Then, select the
feed, view, or services you would like to connect the object to.
Done! It's just like connecting to SQL Server.
- Once the object is bound to the data source, applications can easily interact with Exact Online data with full read/write (CRUD) support.
