[TVITC=csharp]// Sorry about indentation
public class CollectionHelper
{
private CollectionHelper()
{
}

// this is the method I have been using
public static DataTable ConvertTo<T>(IList<T> list)
{
DataTable table = CreateTable<T>();
Type entityType = typeof(T);
PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(entityType);

foreach (T item in list)
{
DataRow row = table.NewRow();

foreach (PropertyDescriptor prop in properties)
{
row[prop.Name] = prop.GetValue(item);
}

table.Rows.Add(row);
}

return table;
}

public static DataTable CreateTable<T>()
{
Type entityType = typeof(T);
DataTable table = new DataTable(entityType.Name);
PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(entityType);

foreach (PropertyDescriptor prop in properties)
{
// HERE IS WHERE THE ERROR IS THROWN FOR NULLABLE TYPES
table.Columns.Add(prop.Name, prop.PropertyType);
}

return table;
}
}
[/TVITC]

Adobe Flash Essentials - 2010

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