devexpress textedit/mru 自动完成？

Question

is it possible to set devexpress textedit to get data from the database and make it autocomplete? or is there any tool in devexpress to do it?

here is my code

string conn = ConfigurationManager.ConnectionStrings["SystemDatabase"].ConnectionString;                     
SqlConnection sqlconn = new SqlConnection(conn);                                               
SqlCommand mycommand = new SqlCommand("spProduct_Search", sqlconn);                  
mycommand.CommandType = CommandType.StoredProcedure;                                     
sqlconn.Open();                                                                             
 SqlDataReader sdr = mycommand.ExecuteReader();                                             
AutoCompleteStringCollection autotext = new AutoCompleteStringCollection();                        
while (sdr.Read())                                                                                     
{
    autotext.Add(sdr.GetString(0));
}                            
txtProductSearch.AutoCompleteMode = AutoCompleteMode.Suggest;**Textbox**
txtProductSearch.AutoCompleteSource = AutoCompleteSource.CustomSource;**Textbox**
txtProductSearch.AutoCompleteCustomSource = autotext;**Textbox**

if possible i want to change textbox to textedit a tool from devexpress but i dont know how to make a textedit autocomplete.

Answer 1

I believe what you want is the LookUpEdit control and it's AutoSuggest mode . Per the documentation, the AutoSuggest mode:

When a user types in text, the editor fires the AutoSuggest event (LookUpEdit.AutoSuggest \ GridLookUpEdit.AutoSuggest) that runs a custom asynchronous task (a System.Threading.Tasks.Task object). This task performs a search against the given data set, and returns the ICollection object with records that match the entered text. This collection is automatically assigned to the editor's DataSource and its entries appear in the editor drop-down menu.

During this asynchronous event you could execute your database query and populate the ICollection with your result set.