Dynamically created keydown event does not work

Question

I'm trying to make some often-used code more userfriendly.

I have a system that I use frequently in WinForms where the user needs to double-click a label to be able to edit the label.

Before, I always created the textbox and manually linked the KeyDown Event to the KeyDown EventHandler. But I wanted to make this easier by adding the eventhandler in the code.

However, when I do it this way, the KeyDown event isn't triggered.

Below This is the code to trigger the function that adds the KeyDown event to the TextBox

    private void lbl_DoubleClick(object sender, EventArgs e)
    {
        // LINK THE LABEL
        Label lbl = (Label)sender;

        // SET THE LABEL AS THE SELECTEDLABEL
        selectedLabel = lbl;

        // OPEN THE EDIT TEXTBOX
        editText();
    }

    private void editText()
    {
        // SETUP THE PARAMETERS OF THE EDIT TEXTBOX
        txtEdit.Parent = this;
        txtEdit.KeyDown -= txtEdit_KeyDown;
        txtEdit.KeyDown += txtEdit_KeyDown;  
        
        // SOME OTHER CODE IS OMITTED FOR CLARITY                      
    }

The above code links the KeyDown to the Event Handler. At some point I found that I needed to relink the Event Handler every time, however, I'm not sure anymore why that was. I can't find the original post anymore.

Below is the Event Handler:

    private void txtEdit_KeyDown(object sender, KeyEventArgs e)
    {
        switch (e.KeyCode)
        {
            case Keys.Escape:

                // HIDE THE EDIT TEXTBOX
                txtEdit.Visible = false;

                // CLEAR THE SELECTED LABEL
                selectedLabel = null;
                break;

            case Keys.Enter:
                break;
        }
    }

When I run the code, the Textbox gets created and the contents of the label are copied in the textbox. However when I hit any button inside of the txtEdit textbox, the Key Down Event Handler is not being fired.

I have checked that in the Designer there is no Event Handler specified which might interfere with my new one:

            // 
            // txtEdit
            // 
            this.txtEdit.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.txtEdit.Font = new System.Drawing.Font("Consolas", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.txtEdit.ForeColor = System.Drawing.Color.Black;
            this.txtEdit.Location = new System.Drawing.Point(1607, 225);
            this.txtEdit.Multiline = true;
            this.txtEdit.Name = "txtEdit";
            this.txtEdit.Size = new System.Drawing.Size(100, 35);
            this.txtEdit.TabIndex = 22;
            this.txtEdit.Text = "Edit";
            this.txtEdit.Visible = false;

So I have no idea why this isn't working. Anybody has an idea?

Thanks