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c#.netlinq

Select multiple elements in a row using LINQ


My code is as follows

var users = MyTable.AsEnumerable()
                      .Select(x => new { x.Field<string>("Col1"),x.Field<string>  
                       ("Col2")}).ToList();

On compiling I get

Invalid anonymous type member declarator. Anonymous type members must be declared with a member assignment, simple name or member access.


Solution

  • You need to give a name to each of the fields in the anonymous type

    var users = MyTable.AsEnumerable()
      .Select(x => 
         new { Col1 = x.Field<string>("Col1"), Col2 = x.Field<string>("Col2")})
      .ToList();
    

    The only time the name of an anonymous type field can be omitted is when the expression itself is a simple name that the compiler can use. For example if the expression is a field or property then the name can be omitted. In this case the expression is a generic method call and has no name the compiler will use