Convert List/IEnumerable to DataTable/DataView

Here’s a method to convert a generic List to a DataTable. This can be used with ObjectDataSource so you get automatic sorting, etc.

///

/// Convert a List{T} to a DataTable.
///

private DataTable ToDataTable(List items)
{
var tb = new DataTable(typeof (T).Name);

PropertyInfo[] props = typeof (T).GetProperties(BindingFlags.Public BindingFlags.Instance);

foreach (PropertyInfo prop in props)
{
Type t = GetCoreType(prop.PropertyType);
tb.Columns.Add(prop.Name, t);
}

foreach (T item in items)
{
var values = new object[props.Length];

for (int i = 0; i <>
/// Determine of specified type is nullable
///
public static bool IsNullable(Type t)
{
return !t.IsValueType (t.IsGenericType && t.GetGenericTypeDefinition() == typeof(Nullable<>));
}

///

/// Return underlying type if type is Nullable otherwise return the type
///

public static Type GetCoreType(Type t)
{
if (t != null && IsNullable(t))
{
if (!t.IsValueType)
{
return t;
}
else
{
return Nullable.GetUnderlyingType(t);
}
}
else
{
return t;
}
}