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.
RTRamya Thirugnanam Syncfusion Team July 26, 2019 06:48 AM UTC
Hi Aung,
Thanks for contacting Syncfusion support.
Please use drawingTools feature which allows you to draw connector at runtime by clicking and dragging on the diagram page. Please refer to the help documentation and online sample link below.