How AuotCompltedBox postbax and get the selected item id on server side

[Rahul]

Hi,
   I want to do when i selected AutoCompleteBox  item i want to do a postback and get the selected items id on server side.so provide solutions.
Thanks,
Rahul

[Boyan Dimitrov]

Hello Rahul,

Please use the RadAutoCompleteBox EntryAdded server-side event and enable by setting AutoPostBack property to "True"
//markup code

<telerik:RadAutoCompleteBox ID="RadAutoCompleteBox1" runat="server" DataSourceID="SqlDataSource1" DataTextField="ContactName" DataValueField="CustomerID" AutoPostBack="true" OnEntryAdded="RadAutoCompleteBox1_EntryAdded">
      </telerik:RadAutoCompleteBox>
        <asp:SqlDataSource runat="server" ID="SqlDataSource1" ConnectionString="<%$ ConnectionStrings:NorthwindConnString %>"
       ProviderName="System.Data.SqlClient" SelectCommand="SELECT [CustomerID], [ContactName] FROM [Customers] ORDER By ContactName">
   </asp:SqlDataSource>

//code behind

protected void RadAutoCompleteBox1_EntryAdded(object sender, AutoCompleteEntryEventArgs e)
   {
       AutoCompleteBoxEntry entry = e.Entry;
       //you can access the entry text
       String entryText = entry.Text;
   }

Regards,
Boyan Dimitrov
Telerik

[Ciupaz]

And how can I populate a List of strings (items keys) from all the items selected by the user in the RadAutoCompleteBox in a WebForms page?

L.

[Peter Milchev]

Hello L.,

The "selected items" are available only in the Entries collection of the AutoCompleteBox. 

Once you get the entries, you can use any method to collect their texts or values and create any collection out of them. 

Regards,
Peter Milchev
Progress Telerik

[Ciupaz]

Do you have an example Peter? 

Luigi

[Peter Milchev]

Hello Luigi,

Here is a simple example iterating the Entries collection and getting the Text of the entries:

protected void RadButton1_Click(object sender, EventArgs e)
{
    var texts = new List<string>();
    foreach (AutoCompleteBoxEntry entry in RadAutoCompleteBox1.Entries)
    {
        texts.Add(entry.Text);
    }
}

Another option is demonstrated here:

• https://demos.telerik.com/aspnet-ajax/autocompletebox/examples/functionality/client-filtering/defaultcs.aspx
• https://demos.telerik.com/aspnet-ajax/autocompletebox/examples/applicationscenarios/defaultcs.aspx

Regards,
Peter Milchev
Progress Telerik

[Ciupaz]

Thank you Peter, this is Ok.

Luigi