Ellipse selection

Question

Hi everyone I have 5 Ellipse circles and i want the user to select one at a time the user must not select more than 1. how do i archive this.. Thanks.

Suzan Mat · Answer

I think you might be able to accomplish this using a programming toolkit that supports Annotation objects (such as leadtools). I am currently using this toolkit to create and annotate my documents. Annotation objects include different types of shapes (Rectangle Ellipse FreeHand etc.) that trigger events when applying any action (click draw edit etc.) on the annotation object. You can handle the click event of the object to change the object's color and then disable the object so that it's no longer clickable. Note that annotations are usually drawn on a different layer over the image's pixel data. You can find more information here .

Enos · Answer

Here is the fingers private void Right1_Click(object sender System.Windows.Input.MouseButtonEventArgs e) { } private void Right2_Click(object sender System.Windows.Input.MouseButtonEventArgs e) { } private void Right3_Click(object sender System.Windows.Input.MouseButtonEventArgs e) { } private void Right4_Click(object sender System.Windows.Input.MouseButtonEventArgs e) { } private void Right5_Click(object sender System.Windows.Input.MouseButtonEventArgs e) { }

Enos · Answer

Hi Selva Actually its a hand with with five fingers. on top of each finger i have put Ellipse. so i want the user to click one finger at a time. after that it must change color and it must not be selected again. how do i archive this

Selva Ganapathy · Answer

Hi Enos This following code may help you in a better way. public Form1() { InitializeComponent(); } string ellipseNumber = 0; private void button1_Click(object sender EventArgs e) { ellipseNumber = (sender as Button).Text; this.Invalidate(); } protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); e.Graphics.DrawEllipse(Pens.Orange new Rectangle(100100100100)); e.Graphics.DrawEllipse(Pens.Orange new Rectangle(250 100 100 100)); e.Graphics.DrawEllipse(Pens.Orange new Rectangle(400 100 100 100)); e.Graphics.DrawEllipse(Pens.Orange new Rectangle(550 100 100 100)); e.Graphics.DrawEllipse(Pens.Orange new Rectangle(700 100 100 100)); if(ellipseNumber == 1) e.Graphics.FillEllipse(Brushes.Orange new Rectangle(100 100 100 100)); else if (ellipseNumber == 2) e.Graphics.FillEllipse(Brushes.Orange new Rectangle(250 100 100 100)); else if (ellipseNumber == 3) e.Graphics.FillEllipse(Brushes.Orange new Rectangle(400 100 100 100)); else if (ellipseNumber == 4) e.Graphics.FillEllipse(Brushes.Orange new Rectangle(550 100 100 100)); else if (ellipseNumber == 5) e.Graphics.FillEllipse(Brushes.Orange new Rectangle(700 100 100 100)); } Regards Selva Ganapathy K