Question

I have a lambda expression:

        var masterDocs = GetMasterDocs(new TNGService.TngServiceClient());
        var searchStr = txtDocSearch.Text;
        var filtered = masterDocs.Where(i => i.DisplayTitle.Contains(searchStr));
        lbxDocuments.DataSource = filtered;
        lbxDocuments.DataBind();

For some reason it is not returning expected results. For instance, there is a DisplayTitle that contains the word “Orifice” but when I run this expression, nothing is returned. Am I going about this the wrong way?

Answer 1

The Contains method is case sensitive. Can it be that your input and comparison differs in casing? To get around that, you can use IndexOf instead:

var filtered = masterDocs.Where(i => 
    i.DisplayTitle.IndexOf(
        searchStr, StringComparison.InvariantCultureIgnoreCase) >= 0);