score:2
Accepted answer
If you need to search on four fields, you can continue to expand your OR conditions to include the additional fields.
var result = LogData.Where(x => (
searchText == "" ||
x.Location.Contains(searchText) ||
x.Messsage.Contains(searchText) ||
x.Sender.Contains(searchText) ||
x.AccountName.Contains(searchText))
);
As Charlieface mentioned, you can potentially optimize this a bit by treating searchText == "" as an early exit condition and return your collection without a where clause.
var result = searchText == "" ? LogData : LogData.Where(x => (
x.Location.Contains(searchText) ||
x.Messsage.Contains(searchText) ||
x.Sender.Contains(searchText) ||
x.AccountName.Contains(searchText))
);
Source: stackoverflow.com
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