Question

I’m familiar with the reflection method that converts any IEnumerable to DataTable, but it’s very very slow!
When i get not huge but big chunk of data i get very slow browser reaction, because it’s very complicated data to handle.

I need to boost my prefformance, how do i do it?
PS: Checked LazyLoading DataTable no success there ether, maybe someone will show me how to do it?

Thank you very very much in advance.

Answer 1

See this artice for detailed explanation.

Core code sample

 public static DataTable ToDataTable<T>(this IEnumerable<T> collection)
    {
        DataTable dt = new DataTable();
        Type t = typeof(T);
        PropertyInfo[] pia = t.GetProperties();
        //Create the columns in the DataTable
        foreach (PropertyInfo pi in pia)
        {
            if ((pi.PropertyType.IsGenericType) )
            {
                Type typeOfColumn = pi.PropertyType.GetGenericArguments()[0];
                dt.Columns.Add(pi.Name, typeOfColumn);
            }
            else
                dt.Columns.Add(pi.Name, pi.PropertyType);
        }
        //Populate the table
        foreach (T item in collection)
        {
            DataRow dr = dt.NewRow();
            dr.BeginEdit();
            foreach (PropertyInfo pi in pia)
            {
                dr[pi.Name] = pi.GetValue(item, null);
            }
            dr.EndEdit();
            dt.Rows.Add(dr);
        }
        return dt;
    }
}

Why do you think that data converting slows your app? Did your profile it?