Steema Central

Posted: **Sun Jun 05, 2011 2:20 am**

Hi,

What is the best to select and delete annotation rectangle already placed on a chart?

Posted: **Mon Jun 06, 2011 9:19 am**

Hello lilo,

Can you explain exactly, step to step, what do you achieve that annotation do in your application?

Thanks,

Posted: **Mon Jun 06, 2011 9:32 am**

Hello lilo,

If what you want is to select an annotation clicking over it and remove it with, for example, the "Supr" key, you could use the Selector Tool and the events as follows:

Code: Select all

        private Steema.TeeChart.Tools.Selector sel1;
        private void InitializeChart()
        {
            tChart1.Aspect.View3D = false;
            tChart1.Legend.Visible = false;

            sel1 = new Steema.TeeChart.Tools.Selector(tChart1.Chart);

            Steema.TeeChart.Tools.Annotation annot = new Steema.TeeChart.Tools.Annotation(tChart1.Chart);
            annot.Left = 100;
            annot.Top = 100;
            annot.Text = "Testing annotation";
            Steema.TeeChart.Styles.Bar bar1 = new Steema.TeeChart.Styles.Bar(tChart1.Chart);
            bar1.FillSampleValues();

            tChart1.KeyDown += new KeyEventHandler(tChart1_KeyDown);
        }

        void tChart1_KeyDown(object sender, KeyEventArgs e)
        {
            if ((sel1.Selection is Steema.TeeChart.Tools.Annotation) && (e.KeyData == Keys.Delete))
            {
                tChart1.Tools.Remove(sel1.Selection as Steema.TeeChart.Tools.Annotation);
            }
        }

Posted: **Mon Jun 06, 2011 1:31 pm**

Thanks Yeray, That's what I want to do.

Steema Central

Select and Delete Annotation Rectangle

Select and Delete Annotation Rectangle

Re: Select and Delete Annotation Rectangle

Re: Select and Delete Annotation Rectangle

Re: Select and Delete Annotation Rectangle