asp.net the simplest way to debug data without reading the null value field using LINQ!

When a general LINQ reads a null value field, it is inexplicable that nothing is displayed, but you cannot see the error, and by analyzing, provide the following methods for reference:

1, sure to check the data table shows whether there is a null value, as long as there is no display, therefore, there is no reading data, manual inspection.

2, by commenting out each item, excluding.

Brae = S.cland.braname,
unit = (int) S.und,
Uname = S.clit.uame,
Hod = S.hod,
Boum = (int) S.bomber,

3, there is also a point to note is that all the records filtered out, as long as one of the records of the field is empty, the whole data will not be.