Please try with making a change in app.js

$('#btnExternalSearch').click(function () {
table.columns(([0, 1, 2, 4])).search($('#txtExternalSearch').val()).draw();
});

You will get an error
at EnumSearchExpressionProvider with "Invalid Search value".

Can you please allow for a search on enums if search value does not match the enum values.
It shall return no data

Many thanks for this but when running I just get an empty, one row table. I suspect I'm missing something?

In runtime i have empty table!

Run demo project.
Try to search for 2012 in Start Date column.
See error message "DataTables warning: table id=fingers10 - Internal Server Error"
"Loading Data" spinner gets stuck forever.

I have implemented this datatbles in my project in asp.net core 3.0 project. My view model is almost same as my database model except a fiew fields which I have mapped with automapper.
Everything i.e create, edit and delete works fine but when I search for mobile number then it gives exception. Searching on other fields works fine. My mobile is declared as string in both models and name of property is also same.

Hi

When using the Position field search, I assumed that the value 'CEO' would yield some results (because that is what I saw displayed in some records). After some digging, I now realize that the 'contains' expression is not using the display name value. Is it possible to change SearchableEnum to use the displayname values in its expression?

Regards

Rob