Question

Let’s say we have the following class Cell, which is composed of a Label control:

class Cell : UserControl
{
    Label base;

    public Cell(Form form)
    {
        base = new Label();
        base.Parent = form;        
        base.Height = 30;
        base.Width = 30;
    }
} 

public partial class Form1 : Form
{ 
    Label label = new Label();

    public Form1()
    {
        InitializeComponent();

        Cell cell = new Cell(this);
        cell.Location = new Point(150, 150);   //this doesnt work            
        label.Location = new Point(150,150);   //but this does
    }
}

A single Cell will display in the Form, but anchored to the top left (0,0) position.

Setting the Location property to a new Point with any other coordinates does nothing, as the Cell will remain in the upper left.

However, if one were to create a new Label and then attempt to set its location, the label would be moved.

Is there a way to do this on my Cell object?

Answer 1

I think your main problem is that you are not adding the controls to a container correctly.

First, you need to add the inner Label to the Cell;

class Cell : UserControl
{       
    Label lbl;

    public Cell()
    {
        lbl = new Label();
        lbl.Parent = form;        
        lbl.Height = 30;
        lbl.Width = 30;
        this.Controls.Add(lbl); // label is now contained by 'Cell'
    }
} 

Then, you need to add the Cell to the Form;

Cell cell = new Cell();
form.Controls.Add(cell);

Also; ‘base’ is a reserved word, so you can’t name the inner label control such.