Capturing TAB from RadTextBox

Hi,

currently I am trying to capture key stroke combinations within the ProcessDialogKey, like Ctrl+A or Alt+F4.

I couldn't find out anything about this. Is this even possible with this Method?

- Sidath

Hello, Sidath,

This seems to be more like a general programming question. After further research in the appropriate forums like StackOverflow and MSDN, I have found the following useful threads:

https://stackoverflow.com/questions/8459067/winforms-capturing-the-combination-of-key-presses-using-processcmdkey-vs-keydo

https://social.msdn.microsoft.com/Forums/en-US/a48afcd0-d885-41aa-973f-884c78d635e3/what-is-the-technically-correct-way-to-handle-ctrlanykey-in-processcmdkey?forum=csharpgeneral

Overriding the Form's ProcessCmdKey method allows you to detect key combinations, e.g. Ctrl+A: 

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

        }

        protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
        {
            if (keyData == (Keys.A | Keys.Control) )
            {
                Console.WriteLine("Ctrl+A");
            }
            return base.ProcessCmdKey(ref msg, keyData);
        }
    }

I hope this information helps. 

Regards,
Dess | Tech Support Engineer, Sr.
Progress Telerik

Sorry I should've mention what I am trying to accomplish.

As the Telerik DateTimePicker doesn't fit my needs I built my own which inherits from RadTextBox.

I override ProcessDialogKey() to avoid dealing with anything else than numbers, dot, modifiers, esc and tab.

So with this method I only have one key registered when pressed if I'm not wrong.

Therefore I didn't come to any result with this.

With the method you provided just nothing happens.

BTW I am using Progress 12.2 for coding.

- Sidath

Hello, Sidath,

According to the provided information, it is not clear why RadDateTimePicker doesn't fit your needs. Could you please give us some more details about the exact goal that you are trying to achieve and how RadDateTimePicker affects this requirement? Once, we get better understanding of the precise case, it would be able to think about a suitable solution and provide further assistance. Thank you in advance for your cooperation.

I have created a derivative of RadTextBox on my end and override both, the ProcessDialogKey and ProcessCmdKey methods. Both of them seems to detect pressing Ctrl+A: 

    public class CustomTextBox : RadTextBox
    {
        protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
        {
            if (keyData == (Keys.A | Keys.Control))
            {
                Console.WriteLine("ProcessCmdKey Ctrl+A");
            }
            return base.ProcessCmdKey(ref msg, keyData);
        }

        protected override bool ProcessDialogKey(Keys keyData)
        {
            if (keyData == (Keys.A | Keys.Control))
            {
                Console.WriteLine("ProcessDialogKey Ctrl+A");
            }
            return base.ProcessDialogKey(keyData);
        }
    }

Is there anything specific in the setup that you have on your end? Do I need to perform any other changes?

Off topic, please have in mind that we offer RadPopupEditor which may be suitable for your scenario. You can host any control, e.g. RadCalendar, if it is necessary, in the popup. Additional information can be found here: https://docs.telerik.com/devtools/winforms/controls/editors/popupeditor/popupeditor

I hope this information helps. If you need any further assistance please don't hesitate to contact me. 

Regards,
Dess | Tech Support Engineer, Sr.
Progress Telerik