The Syncfusion native Blazor components library offers 70+ UI and Data Viz web controls that are responsive and lightweight for building modern web apps.
.NET PDF framework is a high-performance and comprehensive library used to create, read, merge, split, secure, edit, view, and review PDF files in C#/VB.NET.
and it says, that SfDataGrid is not fond inside XML-Namespace "http://schemas.syncfusion.com/wpf" I referenced Syncfusion.Data.WPF, Syncfusion.SfGrid.WPF and Syncfusion.Shared.WPF as it's said in the getting started.