Where contains throw Value can't be null

问题

I'm stuck and don't know why this issue occurs.

Normally we do like this:

var q = await OrmDb.SelectAsync<OrmProductSerial>(p => p.SerialNumber.Contains(reqSearch) );

In this case I need do like this, but it throws an error. Doesn't ormlite support this ? ( linq can do it )

var q = await OrmDb.SelectAsync<OrmProductSerial>(p => reqSearch.Contains(p.SerialNumber) );

Thanks.

回答1:

Based on this, for ormlite, you need to use Sql.In instead, something like this:

OrmDb.SelectAsync<OrmProductSerial>(p => p.Where(c => Sql.In(c.SerialNumber,reqSearch)));

来源：https://stackoverflow.com/questions/60108806/where-contains-throw-value-cant-be-null