>>I am now trying to declare a variable with anonymous type and I can not figure out how to declare this variable correctly. The showed declaration doesn't help me
>>
>>

>>var query = dtBookings.AsEnumerable().Select(c => new
>>    {
>>       booking_id = c.Field<Decimal>("booking_id"),
>>       lname = c.Field<String>("lname"),
>>       start_time = c.Field<DateTime?>("start_time"),
>>       end_time = c.Field<DateTime?>("end_time"),
>>       flex_tspan = c.Field<Boolean>("flex_tspan"),
>>       layer = c.Field<Byte>("layer"),
>>       backcolor = c.Field<Int32>("backcolor"),
>>       forecolor = c.Field<Int32>("forecolor"),
>>       clip_loc = c.Field<Boolean>("clip_loc"),
>>       clip_sp = c.Field<String>("clip_sp"),
>>       display_msg = "#Slots: " + c.Field<Int16>("num_addit").ToString() + " " + c.Field<String>("display_msg"),
>>       isnotes = c.Field<Boolean>("isnotes"),
>>       bookingType = "POD"
>>    });

>
>and the problem is?

The problem is to declare query variable separately and re-use it later.

However, I decided to change that approach completely and just use stored procedure. So, for now I don't need this variable. However, I still would be interested to know as how to properly define the query variable.