Connect to SAP Concur 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 SAP Concur can be used with standard ADO.NET interfaces, such as LINQ and Entity Framework, to interact with live SAP Concur 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 SAP Concur using standard SQL queries.

Install the CData ADO.NET Provider for SAP Concur

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

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

Create a SAP Concur-Connected Blazor App

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

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.SAPConcur.dll, typically located at C:\Program Files\CData\CData ADO.NET Provider for SAP Concur\lib etstandard2.0).
👁 Reference ADO.NET for SAP Concur .dll in the Blazor app.

SELECT SAP Concur Data from the Blazor App

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

   SAP Concur uses the OAuth 2 authentication standard. obtain the and by registering an app with SAP Concur. See the Getting Started section of the help documentation for an authentication guide.

   For example: OAuthClientId=MyOAuthClientId;OAuthClientSecret=MyOAuthClientSecret;InitiateOAuth=GETANDREFRESH;

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

    @page "/"
    @using System.Data;
    @using System.Data.CData.SAPConcur;
    
    <h1>Hello, world!</h1>
    
    Welcome to your Data app.
    
    <div class="row">
    <div class="col-12">
    
    @using (SAPConcurConnection connection = new SAPConcurConnection(
    "OAuthClientId=MyOAuthClientId;OAuthClientSecret=MyOAuthClientSecret;InitiateOAuth=GETANDREFRESH;"))
    {
    var sql = "SELECT Id, OfficeId FROM Departments";
    var results = new DataTable();
    
    SAPConcurDataAdapter dataAdapter = new SAPConcurDataAdapter(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 SAP Concur data as an HTML table in the Blazor app. 👁 Query SAP Concur from Blazor app.
   

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