Question

I have a Linq expression which I’d like to insert to a ADO.NET datatable.
I would like to know the name of the fields from the query in order to set the datatable name.
Here is an example of my code:

var result=from item in context.table
           select new{
                field1=... ,
                field2=... ,
                field3=...
           };

What I’d like to do is to set the tables name.

Datatable.Columns.Add("field1"); .. etc

I tried to do it manually but I believe there should be an elegant solution for it.

Thanks

Answer 1

By making use of reflection you can extract the names of the properties of your anonymous type created in the LINQ expression.

var result = from item in context.table
    select new {
         field1 = ... ,
         field2 = ... ,
         field3 = ... };

if (result.Any())
{
    Type t = result.First().GetType();
    foreach (PropertyInfo p in t.GetProperties())
    {
        // Get the name of the prperty
        Console.WriteLine(p.Name);
    }
}