Entity Framework Core 6.0.8 WHERE clause for dynamic query issues

Question

I used EF 6.0.8 in my project

Here, you will see the example of my code

var searchCriteria = CreateSearchString<T>(model);
if (!string.IsNullOrEmpty(searchCriteria))
{
    result = !string.IsNullOrEmpty(searchCriteria)
        ? enumerable.AsQueryable().Where(searchCriteria, model.Search.Value.ToLower())
        : enumerable.AsQueryable();
}

"( it.Parent1FirstName.= null && it.Parent1FirstName.ToString().ToLower().Contains("Parent1"))"

I have created dynamic query to filter records based on COLUMN property. see below image.

Query applied to my Enumerable data source BUT it not filtering my data. see below image.

DATABASE SOURCE

Answer 1

Resolved, It was my bad.

I was comparing .toLower() case only for value not for properties

It's working fine now.