Create PowerPoint file in Xamarin

The following example shows how you can create a PowerPoint file in Xamarin.Forms mobile application using GemBox.Presentation.

XAML
C#
VB.NET

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:d="http://xamarin.com/schemas/2014/forms/design"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             mc:Ignorable="d"
             x:Class="MainPage">

    <StackLayout Padding="50" 
                 Spacing="20">

        <Label Text="GemBox.Presentation Example"
               HorizontalOptions="Center"
               FontSize="Large"
               Margin="0,0,0,30" />

        <Editor x:Name="text"
                VerticalOptions="FillAndExpand"
                Text="Hi! This presentation was generated with GemBox.Presentation library." />

        <ActivityIndicator x:Name="activity" />

        <Button x:Name="button"
                Text="Create presentation"
                Clicked="Button_Clicked"/>

    </StackLayout>
</ContentPage>

using GemBox.Presentation;
using System;
using System.ComponentModel;
using System.IO;
using System.Threading.Tasks;
using Xamarin.Essentials;
using Xamarin.Forms;

public partial class MainPage : ContentPage
{
    public MainPage()
    {
        ComponentInfo.SetLicense("FREE-LIMITED-KEY");
        InitializeComponent();
    }

    private string CreatePresentation()
    {
        var presentation = new PresentationDocument();

        presentation.Slides.AddNew(SlideLayoutType.Custom)
            .Content.AddTextBox(ShapeGeometryType.Rectangle, 2, 2, 10, 4, LengthUnit.Centimeter)
            .AddParagraph()
            .AddRun(text.Text);

        var filePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "Example.pptx");

        presentation.Save(filePath);

        return filePath;
    }

    private async void Button_Clicked(object sender, EventArgs e)
    {
        button.IsEnabled = false;
        activity.IsRunning = true;

        try
        {
            var filePath = await Task.Run(() => CreatePresentation());
            await Launcher.OpenAsync(new OpenFileRequest(Path.GetFileName(filePath), new ReadOnlyFile(filePath)));
        }
        catch (Exception ex)
        {
            await DisplayAlert("Error", ex.Message, "Close");
        }

        activity.IsRunning = false;
        button.IsEnabled = true;
    }
}

Imports GemBox.Presentation
Imports System
Imports System.ComponentModel
Imports System.IO
Imports System.Threading.Tasks
Imports Xamarin.Essentials
Imports Xamarin.Forms

Partial Public Class MainPage
    Inherits ContentPage

    Public Sub New()
        ComponentInfo.SetLicense("FREE-LIMITED-KEY")
        InitializeComponent()
    End Sub

    Private Function CreatePresentation() As String
        Dim presentation As New PresentationDocument()

        presentation.Slides.AddNew(SlideLayoutType.Custom)
        .Content.AddTextBox(ShapeGeometryType.Rectangle, 2, 2, 10, 4, LengthUnit.Centimeter)
        .AddParagraph()
        .AddRun(Text.Text)

        Dim filePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "Example.pptx")

        presentation.Save(filePath)

        Return filePath
    End Function

    Private Async Sub Button_Clicked(sender As Object, e As EventArgs)
        button.IsEnabled = False
        activity.IsRunning = True

        Try
            Dim filePath = Await Task.Run(Function() CreatePresentation())
            Await Launcher.OpenAsync(New OpenFileRequest(Path.GetFileName(filePath), New ReadOnlyFile(filePath)))
        Catch ex As Exception
            Await DisplayAlert("Error", ex.Message, "Close")
        End Try

        activity.IsRunning = False
        button.IsEnabled = True
    End Sub
End Class

PowerPoint file generator on a native Android mobile app with Xamarin.Forms — Screenshot of Xamarin Android app that creates a PowerPoint file

Using full functionality of GemBox.Presentation in Xamarin application requires adjustments explained in detail on Supported Platforms help page.

Next steps

GemBox.Presentation is a .NET component that enables you to read, write, edit, convert, and print presentation files from your .NET applications using one simple API.

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Create PowerPoint file in Xamarin

See also

Next steps