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.
We have added a FAQ that shows how you might do this. In a derived grid, the sample overrides OnMouseDown to maintain an ArrayList of selected columns. Then in a Paint override in a derived columnstyle, the sample sets the forecolor and backcolor of any cell in a selected column.
George Shepherd's Windows Forms FAQ contains an entry entitled:
How can I enable column selections in my datagrid?
Check it out at:
http://www.syncfusion.com/faq/winforms/search/893.asp
