Convert Linq QueryResult to DataTable

using System.Reflection;

DataTable dt = new DataTable();

dt = LINQToDataTable(q);

 public DataTable LINQToDataTable<T>(IEnumerable<T> varlist)
        {
            DataTable dtReturn = new DataTable();
 
            // column names 
            PropertyInfo[] oProps = null;
 
            if (varlist == null) return dtReturn;
 
            foreach (T rec in varlist)
            {
                // Use reflection to get property names, to create table, Only first time, others  will follow 
                if (oProps == null)
                {
                    oProps = ((Type)rec.GetType()).GetProperties();
                    foreach (PropertyInfo pi in oProps)
                    {
                        Type colType = pi.PropertyType;
 
                        if ((colType.IsGenericType) && (colType.GetGenericTypeDefinition() == typeof(Nullable<>)))
                        {
                            colType = colType.GetGenericArguments()[0];
                        }
 
                        dtReturn.Columns.Add(new DataColumn(pi.Name, colType));
                    }
                }
 
                DataRow dr = dtReturn.NewRow();
 
                foreach (PropertyInfo pi in oProps)
                {
                    dr[pi.Name] = pi.GetValue(rec, null) == null ? DBNull.Value : pi.GetValue
                    (rec, null);
                }
 
                dtReturn.Rows.Add(dr);
            }
            return dtReturn;
        }

Posted in: LINQ