Convert Generic List collection to DataTable in C#

 Step 1 :First Create one Entity  
 public class OLRFormDetails  
   {  
     public string firstName { get; set; }  
     public string middileName { get; set; }  
     public string lastName { get; set; }  
     public string fatherName { get; set; }  
     public string DOJ { get; set; }  
     public string DOB { get; set; }  
     public string resumeID { get; set; }  
     public string gender { get; set; }  
   }  
 Step 2: Add below methods   
  public DataTable ConvertTo<T>(IList<T> lst)  
     {  
       DataTable tbl = CreateTable<T>();  
       Type entType = typeof(T);  
       PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(entType);  
       foreach (T item in lst)  
       {  
         DataRow row = tbl.NewRow();  
         foreach (PropertyDescriptor prop in properties)  
         {  
           row[prop.Name] = prop.GetValue(item);  
         }  
         tbl.Rows.Add(row);  
       }  
       return tbl;  
     }  
     public DataTable CreateTable<T>()  
     {  
       Type entType = typeof(T);  
       DataTable tbl = new DataTable(entType.Name);  
       PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(entType);  
       foreach (PropertyDescriptor prop in properties)  
         tbl.Columns.Add(prop.Name, prop.PropertyType); return tbl;  
     }  
 Step 3:--  
 Create an object for class like below  
  OLRFormDetails olrDetails = null;  
 Create an object for generic list like this  
  List<OLRFormDetails> olrDetailslist = new List<OLRFormDetails>();  
 Add items to the list doing like this  
  olrDetailslist.Add(olrDetails);  
  After adding data you can convert the generic list in to datatable.    
  DataTable dt = ConvertTo<OLRFormDetails>(olrDetailslist);