C# POWERPOINT LIBRARYHigh-performance Blazor PowerPoint Framework

@page "/"
@using BlazorApp.Data
@inject PowerPointService service
@inject Microsoft.JSInterop.IJSRuntime JS
@using System.IO;

<h2>Syncfusion PowerPoint library (Essential Presentation) </h2>

<p>Syncfusion PowerPoint library (Essential Presentation) is a Blazor PowerPoint library used to create, read, edit, and convert PowerPoint files (.PPTX, .PPTM, .POTX, .POTM) in your applications without any Microsoft Office dependencies. </p>

<button class="btn btn-primary" onclick="@CreatePowerPoint">Create PowerPoint</button>

@functions {
    MemoryStream pptxStream;
    /// <summary>
    /// Create and download the PowerPoint document
    /// </summary>
    protected async void CreatePowerPoint()
    {
        pptxStream = service.CreatePowerPoint();
        await JS.SaveAs("Sample.pptx", pptxStream.ToArray());
    }
}

//Creates PowerPoint Presentation
using (IPresentation pptxDoc = Presentation.Create())
{
    //Adds slide to the PowerPoint
    ISlide slide = pptxDoc.Slides.Add(SlideLayoutType.Blank);
    //Adds textbox to the slide
    IShape textboxShape = slide.AddTextBox(0, 0, 500, 500);
    //Adds paragraph to the textbody of textbox
    IParagraph paragraph = textboxShape.TextBody.AddParagraph();
    //Adds a TextPart to the paragraph
    ITextPart textPart = paragraph.AddTextPart();
    //Adds text to the TextPart
    textPart.Text = "AdventureWorks Cycles, the fictitious company on which the AdventureWorks sample databases are based, is a large, multinational manufacturing company. The company manufactures and sells metal and composite bicycles to North American, European and Asian commercial markets. While its base operation is located in Washington with 290 employees, several regional sales teams are located throughout their market base.";
    //Save the document as a stream and retrun the stream.
    using (MemoryStream stream = new MemoryStream())
    {
        //Save the created presentation document to MemoryStream.
        pptxDoc.Save(stream);
        return stream;
    }
}