.NET 包含不工作的核心过滤器

Question

Ok so I have searched for this and have found all kinds of things that seem to be the right answer but I cannot seem to get this working. I think I am close.

I have gotten this code to work in my controller which I call from Datatable serverside ajax:

 var shares = await _dataService.GetAllAgencyShares();
            if (!string.IsNullOrEmpty(sortColumn) && !string.IsNullOrEmpty(sortColumnDirection))
            {
                shares = shares.AsQueryable().OrderBy(sortColumn + " " + sortColumnDirection);
                
            }
            if (!string.IsNullOrEmpty(searchValue))
            {
                
                shares = shares.Where(m => m.FirstName == searchValue
                         || m.LastName == searchValue
                         || m.AgencyName == searchValue
                         || m.FormId.ToString() == searchValue);
                
            }
 recordsTotal = shares.Count();
            var data = shares.Skip(skip).Take(pageSize).ToList();
            var jsonData = new { draw = draw, recordsFiltered = recordsTotal, recordsTotal = recordsTotal, data = data };
            return Ok(jsonData);

The problem is I would like the search part

if (!string.IsNullOrEmpty(searchValue))
{
 shares = shares.Where(m => m.FirstName == searchValue
                         || m.LastName == searchValue
                         || m.AgencyName == searchValue
                         || m.FormId.ToString() == searchValue);
}
 recordsTotal = shares.Count();
 var data = shares.Skip(skip).Take(pageSize).ToList();
 var jsonData = new { draw = draw, recordsFiltered = recordsTotal, recordsTotal = 
 recordsTotal, data = data };
 return Ok(jsonData);

to find anything "like" searchValue. Currently this finds exact matches.

I have tried using Contains but I believe that to be boolean. Most things I found are using EF and use IQueryable--I am not using EF. I have tried to cast IEnumerable as Queryable and nothing seems to work.

Answer 1

How exactly did you use .Contains() ?

It works fine if implemented like this;

shares = shares.Where(m => m.FirstName.Contains(searchValue)
                         || m.LastName.Contains(searchValue)
                         || m.AgencyName.Contains(searchValue)
                         || m.FormId.ToString().Contains(searchValue));