How do I weekly listing with LINQ?

Well, your question is not well formed. Note, that we can not read in your mind or direct from your screen...

If you would like to query your database on dete field, you have to add this field to where condition. For example:

DateTime startDate = new DateTime(2018, 10, 1);
DateTime endDate = new DateTime(2018, 10, 7);
var weeklydata = db.vw_get_callLog
    .Where(x => x.logTimeStamp >= startDate && x.logTimeStamp <= endDate)
    .ToList();

For further details, please see: Query a collection of objects (LINQ in C#) | Microsoft Docs[^]
Filter Weekdays from a Date Range - Christian Nagel's Blog[^]