RadTextBoxControl auto complete

[Tino]

I've trying to get autocomplete working. After failing in my main project I created a test project with a single radtextboxcontrol and the following code from the docs, and I'm not getting any word suggestions.

I'd prefer to have something like

var items = new List{ "Matthew", "Mark", "Luke", "John"}

radTextBoxControl1.AutoCompleteItems.AddRange(items);

but that didn't work either.

Thanks.

 

namespace TelerikWinFormsApp1
{
    public partial class RadForm1 : Telerik.WinControls.UI.RadForm
    {
        public RadForm1()
        {
            InitializeComponent();

            AddAutoCompleteItems();
        }
        private void AddAutoCompleteItems()
        {
            this.radTextBoxControl1.AutoCompleteMode = AutoCompleteMode.Suggest;
            RadListDataItemCollection autoCompleteItems = this.radTextBoxControl1.AutoCompleteItems;

            autoCompleteItems.Add(new RadListDataItem("Luke"));
            autoCompleteItems.Add(new RadListDataItem("Max"));
            autoCompleteItems.Add(new RadListDataItem("Adam"));
            autoCompleteItems.Add(new RadListDataItem("Henry"));
            autoCompleteItems.Add(new RadListDataItem("Jack"));
            autoCompleteItems.Add(new RadListDataItem("Ben"));
            autoCompleteItems.Add(new RadListDataItem("Tyler"));
            autoCompleteItems.Add(new RadListDataItem("Ethan"));
            autoCompleteItems.Add(new RadListDataItem("David"));
            autoCompleteItems.Add(new RadListDataItem("Mike"));
        }
    }
}

[Tino]

Actually I originally tried radTextBoxControl1.AutoCompleteDataSource = items;

 

[Dimitar]

Hello Tino,

Actually, this code works on my side. I have attached a small video that shows this. Could you please check this again and let me know if it is still not working.

I am looking forward to your reply.

 

Regards,
Dimitar
Progress Telerik

[Tino]

After some experimenting it seems autocomplete doesn't work with Multiline=true on the textbox, which I need.

I have a split container with 3 panels, each with a RadTextBoxControl docked to Fill. Autocomplete works until I turn on multiline. Any workaround for this?

 

(Also I figured out the reason the code worked for you and not me is because I had the edit box docked to Fill my entire form, and I guess there was nowhere for the Suggest box to drop down).

[Dimitar]

Hello Tino,

I was able to reproduce this. Currently, a multiline scenario is not supported. I have logged this case on our Feedback Portal. You can track its progress, subscribe to status changes and add your comment to it here. I have also updated your 
Telerik Points.

Should you have any other questions do not hesitate to ask.

Regards,
Dimitar
Progress Telerik

[Danny]

Greetings, already loaded the data for autocomplete, what event does it take to show the final text selected in autocomplete?

[Dimitar]

Hello Danny,

I am not sure what you want to achieve. Could you please elaborate?

In general you can access the underlying list element like this:

public RadForm1()
{
    InitializeComponent();


    this.radTextBoxControl1.ListElement.SelectedIndexChanged += ListElement_SelectedIndexChanged;
}

private void ListElement_SelectedIndexChanged(object sender, Telerik.WinControls.UI.Data.PositionChangedEventArgs e)
{
    Console.WriteLine(radTextBoxControl1.ListElement.SelectedIndex);
}

I am looking forward to your reply.

Regards,
Dimitar
Progress Telerik

[Danny]

Perfect works, but it also activates when any letter is pressed and shows me zero index and I have not selected anything yet, when it is not selected it varies between 0 and -1 (vb.net)

[Dimitar]

Hi Danny,

The event arguments cointan the position which allows you to avoid the case where the list is reset: 

private void ListElement_SelectedIndexChanged(object sender, Telerik.WinControls.UI.Data.PositionChangedEventArgs e)
{
    if (e.Position < 0)
    {
        Console.WriteLine(radTextBoxControl1.ListElement.SelectedIndex);
    }
}

Another approach would be to use the PopupClosed event:

public RadForm1()
{
    InitializeComponent();

    this.radTextBoxControl1.TextBoxElement.AutoCompleteDropDown.PopupClosed += AutoCompleteDropDown_PopupClosed;

}

private void AutoCompleteDropDown_PopupClosed(object sender, RadPopupClosedEventArgs args)
{

}

Please let me know if there is something else I can help you with. 

 

Regards,
Dimitar
Progress Telerik

[Danny]

uniting the two parts is better, thank you very much for the help.

private void AutoCompleteDropDown_PopupClosed(object sender, RadPopupClosedEventArgs args)
{
    if (radTextBoxControl1.ListElement.SelectedIndex > 0)
    {
        Console.WriteLine(radTextBoxControl1.ListElement.SelectedIndex);
    }
}

[Dimitar]

Hi Tino,

I am glad that this works now. Do not hesitate to contact us if you have other questions.

Regards,
Dimitar
Progress Telerik