Identify Child Control Resize

Question

Hello. I am going through the following scenario. I have a Usercontrol that has dynamic width based on the text typed in a Textbox within it. For this in the Textchanged event of this Textbox, the following algorithm is made:

private void MensurarTamanho()
    {
        var tamanho = TextRenderer.MeasureText(txtLyric.Text, txtLyric.Font).Width + txtLyric.Margin.Horizontal + 2;
        var tamanhomin = cbChord.Width + btopc.Width + checkBox1.Width + 6;

        Width = tamanho < tamanhomin ? tamanhomin : tamanho;
    }

This control is lined up inside a Flowlayoutpanel (which represents a group of controls) which in turn is Efileirado in another Flowlayoutpanel (ie a Flowlayoutpanel with Flowlayoutpanels as child controls. In order for the width of the Flowlayoutpanel to be adjusted and dynamic as the controls are added I used the following code in the Controldded and Controlremoved events:

private void flowLayoutPanel1_ControlAdded(object sender, ControlEventArgs e)
    {
        var maior = flowLayoutPanel1.Controls.OfType<Control>().OrderBy(c => c.Height).LastOrDefault();

        var largura = 6 + flowLayoutPanel1.Controls.OfType<Control>().Sum(c => c.Width + c.Margin.Horizontal);
        int altura = 120;

        if (maior != null)
        {
            altura = maior.Height + maior.Margin.Vertical;
        }

        Size = new Size(largura, altura);
    }

This works perfectly when I add and remove controls, however, the internal controls adjust as the text is edited, as already described at the beginning. In this case I need to identify when an internal control is resized so I can apply the above resizing algorithm again. I thought of adding a delegate at the Resize event to each child control added and removing the delegate whenever a control is removed, but I look for a more elegant way to do this.

Follows below print: