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PdfIntegrationProviderOnDocumentInit Method

Called before a document is loaded, as the document interface is initializing.

Namespace:  RadPdf.Integration
Assembly:  RadPdfStandard (in RadPdfStandard.dll) Version: 4.1.0.0 (4.1.0.0)
Syntax
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public virtual void OnDocumentInit(
	DocumentInitEventArgs e
)

Parameters

e
Type: RadPdf.IntegrationDocumentInitEventArgs
An object (defined by DocumentInitEventArgs) that contains event data.
Remarks

Inheriting classes can override this method to perform other tasks or modify aspects of the document interface. If this method is overridden in an inheriting class, you must call the base implementation.

Examples
The following example overrides the default PdfIntegrationProvider to create a custom Integration Provider for the web application. This custom Integration Provider makes a custom font (Open Sans) available for all PdfWebControl instances. Users who do not have the custom font installed on their devices will be provided Open Sans as a web font via Google Fonts.
C#
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using System;
using System.Web;

using RadPdf.Integration;

public class CustomPdfIntegrationProvider : PdfIntegrationProvider
{
    public CustomPdfIntegrationProvider() : base()
    {
        // Add an additional font which we want available to RAD PDF
        this.FontResources.Add(new PdfFontResource("Open Sans", "\'Open Sans\', Arial, sans-serif", "Open Sans")); // The TrueType font "Open Sans" must be installed on the server, available at: https://www.google.com/fonts#UsePlace:use/Collection:Open+Sans
    }

    public override void OnDocumentInit(DocumentInitEventArgs e)
    {
        base.OnDocumentInit(e);

        // Because Open Sans may not be installed on all client devices, we include an external style sheet which provides the font automatically using a web font. 
        // Google Fonts makes this very easy, but your own style sheet can be used instead. 
        // This implementation is not font format specific; you may use any font format which your target browsers support (e.g. WOFF, TTF, OTF, SVG, EOT). 
        e.ExternalStyle = "http://fonts.googleapis.com/css?family=Open+Sans";
    }
}
The following Program.cs file registers the above custom Integration Provider. This example assumes that CustomPdfIntegrationProvider is in namespace referenced by your ASP.NET web application.
C#
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using Microsoft.AspNetCore.Builder;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;

using RadPdf;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddRazorPages();
builder.Services.AddSession();

// Setup WebApplication
var app = builder.Build();
app.UseStaticFiles();
app.UseRouting();
app.UseSession();
app.UseAuthorization();

// Or however you normally process page requests
app.MapRazorPages();

// Create middleware settings
RadPdfCoreMiddlewareSettings settings = new RadPdfCoreMiddlewareSettings()
{
    // Add SQL Server Connection String, if not using Lite Documents
    // Sample connection string below connects to a SQL Server Express instance on localhost
    // TrustServerCertificate=True is set to avoid a trust exception (e.g. "The certificate chain was issued by an authority that is not trusted.")
    // ConnectionString = @"Server=.\SQLExpress;Database=RadPdf;Trusted_Connection=Yes;TrustServerCertificate=True;",

    // Add License Key
    LicenseKey = "DEMO",

    // Attach the Integration Provider
    IntegrationProvider = new CustomPdfIntegrationProvider()

    // To run RAD PDF without the System Service, add UseService = false
    // If using Lite Documents without the System Service, a LiteStorageProvider must also be implemented
    //UseService = false
};

// Add RAD PDF's middleware to app
app.UseRadPdf(settings);

app.Run();
See Also