How do i control visibility of a bar in radChart : Bar chart

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  1. Ankush
    Ankush avatar
    1 posts
    Member since:
    Sep 2012

    Posted 24 Sep 2012 Link to this post

    Hi
    I need a help for i am unable to get anything to control the visibility for a bar in a bar chart.
    Below is my code -
    protected void SetAshGraph(RadChart RadChart, string bpAshValue, string apAshValue, string apTotSedi, string bpTotSedi, string ymax, string ymin, string steps, string title, string yaxislabel)
        {
            //------------------------------Setting Rad Chart Properties
            RadChart.Clear();
            RadChart.RemoveAllSeries();
            RadChart.Margins.Left = Unit.Percentage(25);
            RadChart.Margins.Bottom = Unit.Percentage(17);
            RadChart.Margins.Right = Unit.Percentage(10);
            RadChart.Title.Text = title;
            RadChart.Title.TextFont = new System.Drawing.Font("Verdana", 9, System.Drawing.FontStyle.Bold);
            RadChart.Title.Background.MainColor = Color.Transparent;
            RadChart.Title.Background.BorderColor = Color.Transparent;
            RadChart.Title.Background.FillStyle = FillStyle.Solid;
     
            //----------------------setting X porperties
     
            RadChart.XAxis.Clear();
            //RadChart.XAxis.Label.TextFont = new System.Drawing.Font("Verdana", 3, System.Drawing.FontStyle.Regular);
            //RadChart.XAxis.Items.Font = new System.Drawing.Font("Verdana", 2, System.Drawing.FontStyle.Regular);
             
            RadChart.XAxis.AddItem(""); //RadChart.XAxis.Items[0].Visible = false;
            //RadChart.XAxis.Items[0].Value = -1;
             
            RadChart.XAxis.AddItem("BP \nAsh");
            //RadChart.XAxis.Items[1].Value = 0;
     
            RadChart.XAxis.AddItem("AP \nAsh");
            //RadChart.XAxis.Items[2].Value = 1;
     
            RadChart.XAxis.AddItem(""); //RadChart.XAxis.Items[3].Visible = false;
            //RadChart.XAxis.Items[3].Value = -2;
     
            RadChart.XAxis.AddItem("BP \nTSA");
            //RadChart.XAxis.Items[4].Value = 2;
     
            RadChart.XAxis.AddItem("AP \nTSA");
            //RadChart.XAxis.Items[5].Value = 3;
     
            RadChart.BarOverlapPercent = 0; RadChart.BarWidthPercent = 100;
            RadChart.XAxis.AddItem("");
            //RadChart.XAxis.Items[6].Value = -3;
             
            //RadChart.XAxis.Items[6].Visible = false;
            RadChart.XAxis.AxisWidth = 1;
            RadChart.XAxis.AxisColor = Color.Black;
            RadChart.XAxis.Label.TextColor = Color.Black;
     
     
            //----------------------setting y porperties
            RadChart.YAxis.AddRange(double.Parse(ymin), double.Parse(ymax), double.Parse(steps));
            //   RadChart.YAxis.AutoScale = true;
            RadChart.YAxis.Label.Text = yaxislabel;
            RadChart.YAxis.Label.TextFont = new System.Drawing.Font("Verdana", 8, System.Drawing.FontStyle.Bold);
            RadChart.YAxis.AxisColor = Color.Black;
            RadChart.YAxis.Label.TextColor = Color.Black;
            RadChart.YAxis.AxisWidth = 1;
            RadChart.YAxis.DefaultItemColor = System.Drawing.Color.Black;
            //RadChart.YAxis.VisibleValues = ChartAxisVisibleValues.Positive;
            RadChart.XAxis.DefaultItemColor = System.Drawing.Color.Black;
            //RadChart.XAxis.VisibleValues = ChartAxisVisibleValues.Positive;
            //RadChart.XAxis.AutoScale = false;
            //RadChart.XAxis.AutoShrink = true;
             
             
            //------------------------------Adding  Chart series Properties
            ChartSeries s = RadChart.CreateSeries("Series", Color.DarkViolet, ChartSeriesType.Bar);
            s.Items.Series.Appearance.FillStyle = FillStyle.Solid;
            s.Items.Series.Appearance.BorderColor = Color.Black;
     
            ChartSeriesItem items0 = new ChartSeriesItem();
            items0.YValue = double.Parse(ymin); //items0.XValue = -1;
            s.Items.Add(items0);
            s.Items[0].Label = " ";
             
            //-----------------------------first Item i.e Bp/Ap reading
            ChartSeriesItem items1 = new ChartSeriesItem();
            double dd;
            if (double.TryParse(bpAshValue, out dd))
            {
                items1.YValue = dd;
                s.Items.Add(items1);
                //anks
                //s.Items[0].Appearance.MainColor = Color.FromArgb(153, 51, 101);
                //s.Items[0].Appearance.SecondColor = Color.FromArgb(153, 51, 101);
                s.Items[1].Appearance.MainColor = Color.FromArgb(198, 83, 138);
                s.Items[1].Appearance.SecondColor = Color.FromArgb(198, 83, 138);
                s.Items[1].Label = " ";
                 
            }
            else
            {
                items1.YValue = dd;
                s.Items.Add(items1);
                s.Items[1].Label = " ";
            }
     
            ChartSeriesItem items2 = new ChartSeriesItem();
            if (double.TryParse(apAshValue, out dd))
            {
                items2.YValue = dd;
                s.Items.Add(items2);
                //anks
                //s.Items[1].Appearance.MainColor = Color.FromArgb(154, 153, 255);
                //s.Items[1].Appearance.SecondColor = Color.FromArgb(154, 153, 255);
                s.Items[2].Appearance.MainColor = Color.FromArgb(180, 179, 255);
                s.Items[2].Appearance.SecondColor = Color.FromArgb(180, 179, 255);
                s.Items[2].Label = " ";
            }
     
            ChartSeriesItem items3 = new ChartSeriesItem();
            items3.YValue = double.Parse(ymin); //items3.XValue = -2;
            s.Items.Add(items3);
            s.Items[3].Label = " ";
     
            ChartSeriesItem items4 = new ChartSeriesItem();
            if (double.TryParse(bpTotSedi, out dd))
            {
                items4.YValue = dd;
                s.Items.Add(items4);
                //anks
                //s.Items[2].Appearance.MainColor = Color.FromArgb(153, 51, 101);
                //s.Items[2].Appearance.SecondColor = Color.FromArgb(153, 51, 101);
                s.Items[4].Appearance.MainColor = Color.FromArgb(198, 83, 138);
                s.Items[4].Appearance.SecondColor = Color.FromArgb(198, 83, 138);
                s.Items[4].Label = " ";
            }
            ChartSeriesItem items5 = new ChartSeriesItem();
            if (double.TryParse(apTotSedi, out dd))
            {
                items5.YValue = dd;
                s.Items.Add(items5);
                //anks
                //s.Items[3].Appearance.MainColor = Color.FromArgb(154, 153, 255);
                //s.Items[3].Appearance.SecondColor = Color.FromArgb(154, 153, 255);
                s.Items[5].Appearance.MainColor = Color.FromArgb(180, 179, 255);
                s.Items[5].Appearance.SecondColor = Color.FromArgb(180, 179, 255);
                s.Items[5].Label = " ";
            }
            ChartSeriesItem items6 = new ChartSeriesItem();
            items6.YValue = double.Parse(ymin); //items6.XValue = -3;
            s.Items.Add(items6);
            s.Items[6].Label = " ";
     
            RadChart.AddChartSeries(s);
            //anks
            ChartSeries s1 = RadChart.CreateSeries("LineSeries", Color.Black, ChartSeriesType.Line);
            s1.Items.Series.Appearance.FillStyle = FillStyle.Solid;
            s1.Items.Series.Appearance.BorderColor = Color.Black;
            s1.Items.Series.ShowLabels = true;
            //RadChart.XAxis.LayoutStyle = ChartAxisLayoutStyle.Between;
            RadChart.XAxis.LayoutStyle = ChartAxisLayoutStyle.Normal;
             
            ChartSeriesItem LineItems0 = new ChartSeriesItem();
            if (double.TryParse(bpAshValue, out dd))
            {
                LineItems0.YValue = 1.5;
                s1.Items.Add(LineItems0);
                s1.Items[0].Appearance.MainColor = Color.Black;
                s1.Items[0].Label = "This is a strip line line li";
                s1.Items[0].Series.LabelAppearance.TextFont = new Font("Times New Roman", 9, FontStyle.Bold | FontStyle.Italic);
                s1.Items[0].Series.LabelAppearance.TextColor = Color.Black;
                //s1.Items[0].Series.LabelAppearance.TextColor = Color.Gold;
            }
            else
            {
                LineItems0.YValue = 1.5;
                s1.Items.Add(LineItems0);
                s1.Items[0].Label = " ";
            }
            ChartSeriesItem LineItems1 = new ChartSeriesItem();
            if (double.TryParse(bpAshValue, out dd))
            {
                LineItems1.YValue = 1.5;
                s1.Items.Add(LineItems1);
                s1.Items[1].Appearance.MainColor = Color.Black;
                s1.Items[1].Label = " ";
            }
            ChartSeriesItem LineItems2 = new ChartSeriesItem();
            if (double.TryParse(apAshValue, out dd))
            {
                LineItems2.YValue = 1.5;
                s1.Items.Add(LineItems2);
                s1.Items[2].Appearance.MainColor = Color.Black;
                s1.Items[2].Label = " ";
            }
            ChartSeriesItem LineItems3 = new ChartSeriesItem();
            if (double.TryParse(bpTotSedi, out dd))
            {
                LineItems3.YValue = 1.5;
                s1.Items.Add(LineItems3);
                s1.Items[3].Appearance.MainColor = Color.Black;
                s1.Items[3].Label = " ";
            }
            ChartSeriesItem LineItems4 = new ChartSeriesItem();
            if (double.TryParse(apTotSedi, out dd))
            {
                LineItems4.YValue = 1.5;
                s1.Items.Add(LineItems4);
                s1.Items[4].Appearance.MainColor = Color.Black;
                s1.Items[4].Label = " ";
            }
            ChartSeriesItem LineItems5 = new ChartSeriesItem();
            if (double.TryParse(apTotSedi, out dd))
            {
                LineItems5.YValue = 1.5;
                s1.Items.Add(LineItems5);
                s1.Items[5].Appearance.MainColor = Color.Black;
                s1.Items[5].Label = " ";
            }
            ChartSeriesItem LineItems6 = new ChartSeriesItem();
            if (double.TryParse(apTotSedi, out dd))
            {
                LineItems6.YValue = 1.5;
                s1.Items.Add(LineItems6);
                s1.Items[6].Appearance.MainColor = Color.Black;
                s1.Items[6].Label = " ";
            }
            RadChart.AddChartSeries(s1);
     
        }
    and here is a graph in the attachment-

     I dont want the small bars that comes in the position 1st , 4th ,7th. But i need the space for them just without the small bars that comes in.
  2. Princy
    Princy avatar
    17421 posts
    Member since:
    Mar 2007

    Posted 27 Sep 2012 Link to this post

    Hi,

    You can control the visibility of an item in barchart on ItemDataBound event of RadChart as follows.

    C#:
    protected void RadChart1_ItemDataBound(object sender, ChartItemDataBoundEventArgs e)
    {
      if (e.SeriesItem.YValue == 1.0)
      {
         e.SeriesItem.Visible = false;
      }
    }

    Thanks,
    Princy.
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