Visual C# Unable to alter size or position of form

  • Thread starter Thread starter Kevin R
  • Start date Start date
K

Kevin R

Hi
I have this in a method which is called when my form is created

public CreateDevice()
{
// Set the initial size of our form
this.Top = 0;
this.Left = 0;
this.Size = new System.Drawing.Size(500,800);
//this.ClientSize = new System.Drawing.Size(400,300);
// And it's caption
this.Text = "Rhubarb: CreateDevice";
// Load our icon from the resources of the .exe
this.Icon = new Icon(this.GetType(), "directx.ico");
}

the method is being called OK, because the forms text is being set to
what ever I want it to be. But attempts to set the Top, Left or Size
members are having no effect at all, the same with attempts to set the
ClientSize member.
I can resize the form by dragging, when it is running.
I am completely new to C# so it may be something really dumb.

Any ideas

Kevin R.
 
Hi
I have this in a method which is called when my form is created

public CreateDevice()
{
// Set the initial size of our form
this.Top = 0;
this.Left = 0;
this.Size = new System.Drawing.Size(500,800);
//this.ClientSize = new System.Drawing.Size(400,300);
// And it's caption
this.Text = "Rhubarb: CreateDevice";
// Load our icon from the resources of the .exe
this.Icon = new Icon(this.GetType(), "directx.ico");
}

the method is being called OK, because the forms text is being set to
what ever I want it to be. But attempts to set the Top, Left or Size
members are having no effect at all, the same with attempts to set the
ClientSize member.
I can resize the form by dragging, when it is running.
I am completely new to C# so it may be something really dumb.

Any ideas

Kevin R.
Click to expand...


The form is actually called CreateDevice. Hence the method above is
the constructor.

I can set the Left and Top properties dynamically provided that at
design time I set the form's StartPosition property to Manual.

If I move my attempts to set the size to the InitializeComponent()
method then all is OK.

Strange that I can set the Text, Left and Top properties within the
constructor, but not the Size property. I am probably missing
something.

Problem is sorted for know, but I would be interested to know what the
problem with doing this in the constructor was.

Kevin R.
 
In general, these types of changes should be made in the Load() handler,
and not in the constructor, as the underlying Windows objects do not yet
exist.

-ken
 
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