Question

I have a Graph as user control and I’m trying to redraw the graph.
Why does this not work if i want to redraw the user control?

userGraph.Dispose();
new UserControls.Graph();

Shouldn’t it dispose the whole graph and redraw the user control and initialize all the components?

Answer 1

There should be another way to redraw your control, like update its data source or manually update its content – you should check its code or documentation.

But if you want to remove control from the form you should use

myForm.Controls.Remove(userGraph); //assuming that control is on the form

And if you want to add new control, then it should look like this:

UserControls.Graph newGraph = new UserControls.Graph();
//initialization of your new graph
myForm.Controls.Add(newGraph );

Here is example from msdn: Control.ControlCollection.Add Method