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[.net] Windows.Forms: Panel/Button size problem

Started by xeddiex Feb 27, 2007 at 9:17 PM 1 replies 950+ views

Original Post

Feb 27, 2007 at 9:17 PM

Language: C# Enviroment: Windows Forms Hi guys. Whenever I try to set the width of my Button to half the width of the container control - Panel - I get a shorter width than the half I wanted.


    class EmployeePanel : Panel
    {
        private Button clockIn;

        public EmployeePanel()
        {
            this.Borderstyle = Borderstyle.Fixed3D;
            clockIn = new Button();
            clockIn.Text = "Clock In";
            clockIn.Size = new Size(this.ClientRectangle.Width / 2, this.ClientRectangle.Height);
            clockIn.Dock = Dockstyle.Left;
            clockIn.Show();

            this.Controls.Add(clockIn);
        }
    }

/* class that creates an instance of the above control: */


    class Class1 : Form
    {
        private EmployeePanel employeePanel;

        public Class1()
        {
            employeePanel = new EmployeePanel();
            employeePanel.Size = new Size(this.ClientRectangle.Width, this.ClientRectangle.Height);
            this.Controls.Add(employeePanel);
            employeePanel.Show();
        }
    }

Example:

Does anyone know why this is happening? Thanks, xeddiex

dalep

Feb 27, 2007 at 10:04 PM

You are setting the width of the button in the panel's constructor, which is invoked before you assign the size to the panel. So the button width is half the default client width of the panel. Since its docked left, its width won't change unless you tell it to.

If you want the button always half the width of the panel, you should size it in the panel's Resize event or the overridden OnSize member function or something like that.

benryves

Mar 1, 2007 at 6:19 AM

You could just put the button inside a TableLayoutPanel and let that handle the resizing for you. [smile]

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