Question

How can i bind a Text property from a textBox to a Width of a panel?

I tried:

   panel1.DataBindings.Add("Text", textBox3, "Size.Width");

but it raises exception

Object does not match target type.

EDIT: I want to change the width of panel, as text in textbox is changed.

Answer 1

Try this:

void MakeBind()
{
     Binding bind = new Binding("Width", textBox3, "Text");
     bind.Format += new ConvertEventHandler(bind_Format);
     panel1.DataBindings.Add(bind);
}
void bind_Format(object sender, ConvertEventArgs e)
{
     int i = 0;
     int.TryParse((string)e.Value, out i);
     e.Value = i;
}

You also should know, that you can’t directly change Size.Width, because of Size is a property, which returns value type, which you can’t change this way. Only to set new Size with new Width.