Connect to Highrise Data from Blazor Apps

Blazor is a framework for developing modern, client-side web UIs using .NET technology. Instead of coding in JavaScript, developers can use the familiar C# language and .NET libraries to build app UIs.

The CData ADO.NET Provider for Highrise can be used with standard ADO.NET interfaces, such as LINQ and Entity Framework, to interact with live Highrise data. Since Blazor supports .NET Core, developers can use CData ADO.NET Providers in Blazor apps. In this article, we will guide you to build a simple Blazor app that talks to Highrise using standard SQL queries.

Install the CData ADO.NET Provider for Highrise

CData ADO.NET Providers allow users to access Highrise just like they would access SQL Server, using simple SQL queries.

Install the Highrise ADO.NET Data Provider from the CData website or from NuGet. Search NuGet for "Highrise ADO.NET Data Provider."

Create a Highrise-Connected Blazor App

Start by creating a Blazor project that references the CData ADO.NET Provider for Highrise

1. Create a Blazor project on Visual Studio.
👁 Create a Blazor app project.

2. From the Solution Explorer, right click Dependencies, then click Add Project Reference.
3. In the Reference Manager, click the Browse button, and choose the .dll file of the installed ADO.NET Provider (e.g. System.Data.CData.Highrise.dll, typically located at C:\Program Files\CData\CData ADO.NET Provider for Highrise\lib etstandard2.0).
👁 Reference ADO.NET for Highrise .dll in the Blazor app.

SELECT Highrise Data from the Blazor App

1. Open the Index.razor file from the Project page.
2. In a HighriseConnection object, set the connection string:

   Highrise uses the OAuth authentication standard. To authenticate to Highrise, obtain the OAuthClientId, OAuthClientSecret, and CallbackURL by registering an app with Highrise. You will also need to set the AccountId to connect to data.

   See the "Getting Started" section in the help documentation for a guide to using OAuth.

   For example: OAuthClientId=MyOAuthClientId;OAuthClientSecret=MyOAuthClientSecret;CallbackURL=http://localhost;AccountId=MyAccountId;InitiateOAuth=GETANDREFRESH;

3. The code below creates a simple Blazor app for displaying Highrise data, using standard SQL to query Highrise just like SQL Server.

    @page "/"
    @using System.Data;
    @using System.Data.CData.Highrise;
    
    <h1>Hello, world!</h1>
    
    Welcome to your Data app.
    
    <div class="row">
    <div class="col-12">
    
    @using (HighriseConnection connection = new HighriseConnection(
    "OAuthClientId=MyOAuthClientId;OAuthClientSecret=MyOAuthClientSecret;CallbackURL=http://localhost;AccountId=MyAccountId;InitiateOAuth=GETANDREFRESH;"))
    {
    var sql = "SELECT Name, Price FROM Deals";
    var results = new DataTable();
    
    HighriseDataAdapter dataAdapter = new HighriseDataAdapter(sql, connection);
    dataAdapter.Fill(results);
    
    <table class="table table-bordered">
    <thead class="thead-light">
    <tr>
    @foreach (DataColumn item in results.Rows[0].Table.Columns)
    {
    <th scope="col">@item.ColumnName</th>
    }
    </tr>
    </thead>
    <tbody>
    @foreach (DataRow row in results.Rows)
    {
    <tr>
    @foreach (var column in row.ItemArray)
    {
    <td>@column.ToString()</td>
    }
    </tr>
    }
    </tbody>
    </table>
    }
    </div>
    </div>
    

4. Rebuild and run the project. The ADO.NET Provider renders Highrise data as an HTML table in the Blazor app. 👁 Query Highrise from Blazor app.
   

   At this point, you have a Highrise-connected Blazor app, capable of working with live Highrise data just like you would work with a SQL Server instance. Download a free, 30-day trial and start working with live Highrise data in your Blazor apps today.