Which event to subcribe when user clicks on drop down list from textbox auto complete suggestions

[Pratik]

I have a RadTextBoxControl (or RadAutoCompleteBox). When the user types some text the drop down list of text suggetsions appears below. I want to capture the event when user clicks on one of the items from the list to select it. Which event should I subscribe to catch this. I also want to do the same if they tab out from the box.

[Svett]

Hi Pratik,

You can handle when the user click on item from the auto-complete drop down list by handling the Click event in the following manner:

this.radTextBoxControl1.ListElement.ElementTree.Control.Click += this.OnListElementClick;

private void OnListElementClick(object sender, EventArgs e)
{
    ComponentThemableElementTree elementTree = this.radTextBoxControl1.ListElement.ElementTree;
    Point mousePosition = elementTree.Control.PointToClient(Control.MousePosition);
    RadElement element = elementTree.GetElementAtPoint(mousePosition);

    while (element != null)
    {
        RadListVisualItem item = element as RadListVisualItem;

        if (item != null)
        {
            // YOUR LOGIC HERE
            break;
        }

        element = element.Parent;
    }
}

If you want to handle when the user press TAB key, you should subscribe for KeyDown event of RadTextBoxControl (RadAutoCompleteBox):

this.radTextBoxControl1.KeyDown += new KeyEventHandler(radTextBoxControl1_KeyDown);

private void radTextBoxControl1_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.Tab)
    {
        // YOU LOGIC
    }
}

I hope this helps.
 
Regards,
Svett
the Telerik team

[Anders]

RadAutoCompleteBox.ListElement does not exist, was this answer only about RadTextBoxControl?

[Dess | Tech Support Engineer, Principal]

Hello Anders,

Thank you for writing.

The RadAutoCompleteBox.ListElement property is available in the latest official release Q1 2016. You can find attached a sample project demonstrating how to detect when autocomplete popup is clicked.

I hope this information helps. Should you have further questions I would be glad to help.

 

Regards,
Dess
Telerik