Convert dynamic list to datatable c #

Question

I searched and hacked my brain on how to convert a dynamic list to a database, C #, please report, thanks

List<dynamic>dlist=new List<dynamic>

to

DataTable 

Answer 1

Below is a method with which you can convert any list object to datatable.

 public DataTable ConvertToDataTable<T>(IList<T> data)
    {
        PropertyDescriptorCollection properties =
           TypeDescriptor.GetProperties(typeof(T));
        DataTable table = new DataTable();
        foreach (PropertyDescriptor prop in properties)
            table.Columns.Add(prop.Name, Nullable.GetUnderlyingType(prop.PropertyType) ?? prop.PropertyType);
        foreach (T item in data)
        {
            DataRow row = table.NewRow();
            foreach (PropertyDescriptor prop in properties)
                row[prop.Name] = prop.GetValue(item) ?? DBNull.Value;
            table.Rows.Add(row);
        }
        return table;

    }

http://social.msdn.microsoft.com/Forums/vstudio/en-US/6ffcb247-77fb-40b4-bcba-08ba377ab9db/converting-a-list-to-datatable?forum=csharpgeneral

Answer 2

I don’t know why you need this, however you can use this ObjectShredderone using reflection, which can convert anything to DataTable, therefore even dynamic or anonymous types:

CopyToDataTable<T> T DataRow

Answer 3

 public DataTable ToDataTable<T>(dynamic items)
    {

        DataTable dtDataTable = new DataTable();
        if (items.Count == 0) return dtDataTable;

        ((IEnumerable)items[0]).Cast<dynamic>().Select(p => p.Name).ToList().ForEach(col => { dtDataTable.Columns.Add(col); });

        ((IEnumerable)items).Cast<dynamic>().ToList().
            ForEach(data =>
            {
                DataRow dr = dtDataTable.NewRow();
                ((IEnumerable)data).Cast<dynamic>().ToList().ForEach(Col => { dr[Col.Name] = Col.Value; });
                dtDataTable.Rows.Add(dr);
            });
        return dtDataTable;
    }

Answer 4

,

public static DataTable ConvertToDatatable<T>(this IList<T> data)
{
    PropertyDescriptorCollection props =
        TypeDescriptor.GetProperties(typeof(T));
    DataTable table = new DataTable();
    for(int i = 0 ; i < props.Count ; i++)
    {
        PropertyDescriptor prop = props[i];
        table.Columns.Add(prop.Name, prop.PropertyType);
    }
    object[] values = new object[props.Count];
    foreach (T item in data)
    {
        for (int i = 0; i < values.Length; i++)
        {
            values[i] = props[i].GetValue(item);
        }
        table.Rows.Add(values);
    }
    return table;        
    }