itextsharp table chart legends beneath bars - c#

Can someone explain me how I can create chart like this one using itextsharp library.
As you can see here, this chart has attached table with legends to its bottom side. And each bar has year attached to it. I want to create something like that.
Second picture. This is what i have so far. I don't have year attached to each bar, and my legends are not beneath each bar like in top graph. If someone could guide me how to create identical graph like one on top i would be grateful. Thanks in advance!
How can I turn those labels to be displayed horizontally, and put those legends beneath years in table like one in picture number 1.
// Chart Centers By Year
var chartCentersByYear = new Chart
{
Width = 1000,
Height = 450,
RenderType = RenderType.ImageTag,
AntiAliasing = AntiAliasingStyles.Graphics,
TextAntiAliasingQuality = TextAntiAliasingQuality.High
};
chartCentersByYear.Titles.Add("Centers By Year");
chartCentersByYear.Titles[0].Font = new Font("Arial", 16f);
chartCentersByYear.Titles[0].Alignment = System.Drawing.ContentAlignment.TopLeft;
chartCentersByYear.ChartAreas.Add("");
chartCentersByYear.ChartAreas[0].AxisX.MajorGrid.Enabled = false;
chartCentersByYear.ChartAreas[0].AxisY.MajorGrid.Enabled = false;
chartCentersByYear.Series.Add("Count");
chartCentersByYear.Series.Add("Cases");
chartCentersByYear.Series[0].ChartType = SeriesChartType.Column; //Pie
chartCentersByYear.Series[1].ChartType = SeriesChartType.StepLine; //StepLine
chartCentersByYear.Series[1].BorderDashStyle = ChartDashStyle.DashDot;
chartCentersByYear.Series[1].BorderWidth = 3;
chartCentersByYear.Series[0].Color = Color.Brown;
chartCentersByYear.Legends.Add("1");
chartCentersByYear.Legends.Add("2");
chartCentersByYear.Legends[0].HeaderSeparator = LegendSeparatorStyle.Line;
chartCentersByYear.Legends[0].HeaderSeparatorColor = Color.Black;
chartCentersByYear.Legends[0].ItemColumnSeparator = LegendSeparatorStyle.Line;
chartCentersByYear.Legends[0].ItemColumnSeparatorColor = Color.Black;
chartCentersByYear.Legends[1].HeaderSeparator = LegendSeparatorStyle.Line;
chartCentersByYear.Legends[1].HeaderSeparatorColor = Color.Black;
chartCentersByYear.Legends[1].ItemColumnSeparator = LegendSeparatorStyle.Line;
chartCentersByYear.Legends[1].ItemColumnSeparatorColor = Color.Black;
//For the Legend
LegendCellColumn firstColumn = new LegendCellColumn();
firstColumn.ColumnType = LegendCellColumnType.SeriesSymbol;
firstColumn.HeaderBackColor = Color.WhiteSmoke;
chartCentersByYear.Legends[0].CellColumns.Add(firstColumn);
chartCentersByYear.Legends[1].CellColumns.Add(firstColumn);
LegendCellColumn secondColumn = new LegendCellColumn();
secondColumn.ColumnType = LegendCellColumnType.Text;
secondColumn.Text = "#LEGENDTEXT";
secondColumn.HeaderBackColor = Color.WhiteSmoke;
LegendItem newItemCount = new LegendItem();
newItemCount.Cells.Add(LegendCellType.Text, "Count", System.Drawing.ContentAlignment.MiddleCenter);
newItemCount.BorderWidth = 1;
newItemCount.BorderDashStyle = ChartDashStyle.Solid;
LegendItem newItemCases = new LegendItem();
newItemCases.Cells.Add(LegendCellType.Text, "Cases", System.Drawing.ContentAlignment.MiddleCenter);
newItemCases.BorderWidth = 1;
newItemCases.BorderDashStyle = ChartDashStyle.Solid;
// Getting data from a stored procedure
var totalCentersByYearResult = new Repository().GetTotalCentersByYear();
foreach (IGD_spInternationalReportCenterWithTots1_Result item in totalCentersByYearResult)
{
// For Series
chartCentersByYear.Series[0].Points.AddXY(item.YearEcmo, item.Count);
chartCentersByYear.Series[1].Points.AddY(item.Cases);
// For Legend
newItemCount.Cells.Add(LegendCellType.Text, item.Count.ToString(), System.Drawing.ContentAlignment.MiddleCenter);
newItemCases.Cells.Add(LegendCellType.Text, item.Cases.ToString(), System.Drawing.ContentAlignment.MiddleCenter);
}
chartCentersByYear.Legends[0].CustomItems.Add(newItemCount);
chartCentersByYear.Legends[0].CustomItems.Add(newItemCases);
chartCentersByYear.Legends[0].Docking = Docking.Bottom;
chartCentersByYear.Legends[1].Docking = Docking.Bottom; //Top
chartCentersByYear.Series[0].YAxisType = AxisType.Primary;
chartCentersByYear.Series[1].YAxisType = AxisType.Secondary;
//For two coordinate systems
chartCentersByYear.ChartAreas[0].AxisY2.LineColor = Color.Transparent;
chartCentersByYear.ChartAreas[0].AxisY2.MajorGrid.Enabled = false;
chartCentersByYear.ChartAreas[0].AxisY2.Enabled = AxisEnabled.True;
chartCentersByYear.ChartAreas[0].AxisY2.IsStartedFromZero = chartCentersByYear.ChartAreas[0].AxisY.IsStartedFromZero;
using (var chartimage = new MemoryStream())
{
chartCentersByYear.SaveImage(chartimage, ChartImageFormat.Png);
Byte[] newChart = chartimage.GetBuffer(); //return chartimage.GetBuffer();
var image = Image.GetInstance(newChart); //Image.GetInstance(Chart());
image.ScalePercent(50f);
image.SetAbsolutePosition(document.LeftMargin + 40, document.BottomMargin + 100);
document.Add(image);
}

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How to set chart title above y-axis?

I have been experimenting with charts and so far I got this experimental code:
static void Main(string[] args)
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series.Points.AddXY("1", 20);
series.Points.AddXY("2", 25);
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series.Points.AddXY("4", 35);
series.Points.AddXY("5", 40);
series.Points.AddXY("6", 45);
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private static void CreateYAxis(Chart chart, ChartArea area, Series series, float axisOffset, float labelsSize)
{
// Create new chart area for original series
ChartArea areaSeries = chart.ChartAreas.Add("ChartArea_" + series.Name);
areaSeries.BackColor = Color.Transparent;
areaSeries.BorderColor = Color.Transparent;
areaSeries.Position.FromRectangleF(area.Position.ToRectangleF());
areaSeries.InnerPlotPosition.FromRectangleF(area.InnerPlotPosition.ToRectangleF());
areaSeries.AxisX.MajorGrid.Enabled = false;
areaSeries.AxisX.MajorTickMark.Enabled = false;
areaSeries.AxisX.LabelStyle.Enabled = false;
areaSeries.AxisY.MajorGrid.Enabled = false;
areaSeries.AxisY.MajorTickMark.Enabled = false;
areaSeries.AxisY.LabelStyle.Enabled = false;
areaSeries.AxisY.IsStartedFromZero = area.AxisY.IsStartedFromZero;
areaSeries.AxisY.TitleAlignment = StringAlignment.Far;
areaSeries.AxisY.TextOrientation = TextOrientation.Horizontal;
areaSeries.AxisY.Title = "Y-axis Title1";
areaSeries.AxisY.TitleForeColor = Color.Blue;
areaSeries.AxisY.TitleFont = new Font("Tahoma", 7, FontStyle.Bold);
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areaAxis.AxisX.MajorGrid.Enabled = false;
areaAxis.AxisX.MajorTickMark.Enabled = false;
areaAxis.AxisX.LabelStyle.Enabled = false;
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{
// Create new chart area for original series
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areaSeries.InnerPlotPosition.FromRectangleF(area.InnerPlotPosition.ToRectangleF());
areaSeries.AxisY.MajorGrid.Enabled = false;
areaSeries.AxisY.MajorTickMark.Enabled = false;
areaSeries.AxisY.LabelStyle.Enabled = false;
areaSeries.AxisX.MajorGrid.Enabled = false;
areaSeries.AxisX.MajorTickMark.Enabled = false;
areaSeries.AxisX.LabelStyle.Enabled = false;
areaSeries.AxisX.IsStartedFromZero = area.AxisX.IsStartedFromZero;
series.ChartArea = areaSeries.Name;
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ChartArea areaAxis = chart.ChartAreas.Add("AxisX_" + series.ChartArea);
areaAxis.BackColor = Color.Transparent;
areaAxis.BorderColor = Color.Transparent;
areaAxis.Position.FromRectangleF(chart.ChartAreas[series.ChartArea].Position.ToRectangleF());
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Series seriesCopy = chart.Series.Add(series.Name + "_Copy");
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{
seriesCopy.Points.AddXY(point.XValue, point.YValues[0]);
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seriesCopy.Color = Color.Transparent;
seriesCopy.BorderColor = Color.Transparent;
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areaAxis.AxisY.LineWidth = 0;
areaAxis.AxisY.MajorGrid.Enabled = false;
areaAxis.AxisY.MajorTickMark.Enabled = false;
areaAxis.AxisY.LabelStyle.Enabled = false;
areaAxis.AxisX.MajorGrid.Enabled = false;
//areaAxis.AxisX.IntervalOffset = Convert.ToDouble("0,5");
areaAxis.AxisX.IsStartedFromZero = area.AxisX.IsStartedFromZero;
areaAxis.AxisX.LabelStyle.Font = area.AxisX.LabelStyle.Font;
areaAxis.AxisX.CustomLabels.Add(0, 1, "0.5");
areaAxis.AxisX.CustomLabels.Add(1, 2, "1.5");
areaAxis.AxisX.CustomLabels.Add(2, 3, "2.5");
areaAxis.AxisX.CustomLabels.Add(3, 4, "3.5");
areaAxis.AxisX.CustomLabels.Add(4, 5, "4.5");
areaAxis.AxisX.CustomLabels.Add(5, 6, "5.5");
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areaAxis.Position.Y -= axisOffset;
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}
This produces the following result:
PROBLEM:
I can not figure out how to make it so that the title aligns itself above the respective y-axis, any ideas?

I don't think you do that.
Afaik the recommended workaround is adding more chart Titles.
You can style them as usual and to move them on top of a axis you can align them to the top left of the respective Chartearea.InnerPlotPosition:
ChartArea ca1 = thisChart.ChartAreas[0];
RectangleF rip1 = ca1.InnerPlotPosition.ToRectangleF();
Title ty1 = thisChart.Titles.Add("ty1");
ty1.Text = "Y-Axis 1\nTitle";
ty1.ForeColor = Color.DarkSlateBlue;
ty1.Position.X = rip1.Left;
ty1.Position.Y = rip1.Y;
Make sure to have enough space at the top of the chart for the titles..
Do note that the values of all ElementPositions, including InnerPlotPosition are in percent of the respective containers, i.e. of the ChartArea for the InnerPlotPosition and of the Chart for the ChartArea..

How do I get series data to display in bar chart legend

I have a Windows Forms Application that displays a graph from data stored in a database. I am able to get the data to display in a bar graph or pie graph. But the legend in the bar graph only displays "Series1", the name of the series. The legend of the pie chart displays a correct legend with the series data. I've searched MSDN and found several articles on adding a legend but they all have the same results.
Here is my bar chart code:
string[] xvals = new string[dt.Rows.Count];
int[] yvals = new int[dt.Rows.Count];
for (int i = 0; i < dt.Rows.Count; i++)
{
xvals[i] = dt.Rows[i]["XValues"].ToString();
yvals[i] = Convert.ToInt32(dt.Rows[i]["YValues"].ToString());
}
Chart barChart = new Chart();
ChartArea chartArea = new ChartArea();
barChart.ChartAreas.Add(chartArea);
barChart.Dock = DockStyle.Fill;
barChart.BackColor = Color.Transparent;
barChart.Palette = ChartColorPalette.Fire;
barChart.ChartAreas[0].BackColor = Color.Transparent;
barChart.ChartAreas[0].AxisX.MajorGrid.Enabled = false;
barChart.ChartAreas[0].AxisY.MajorGrid.Enabled = false;
Series series1 = new Series
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series1.ChartType = SeriesChartType.Column;
barChart.Series.Add(series1);
for (int i = 0; i < dt.Rows.Count; i++)
{
series1.Points.AddXY(dt.Rows[i]["XValues"].ToString(),
Convert.ToInt32(dt.Rows[i]["YValues"].ToString()));
var p1 = series1.Points[i];
p1.Color = Color.FromArgb((byte)r.Next(90, 255), (byte)r.Next(90, 255), 160);
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barChart.Legends.Add(new Legend("Legend1"));
barChart.Legends["Legend1"].BackColor = Color.Transparent;
barChart.Series["Series1"].Legend = "Legend1";
series1.IsVisibleInLegend = true;
gbo1.Controls.Add(barChart);
Here is my pie chart code:
string[] xvals = new string[dt.Rows.Count];
int[] yvals = new int[dt.Rows.Count];
for (int i = 0; i < dt.Rows.Count; i++)
{
xvals[i] = dt.Rows[i]["XValues"].ToString();
yvals[i] = Convert.ToInt32(dt.Rows[i]["YValues"].ToString());
}
Chart pieChart = new Chart();
ChartArea chartArea = new ChartArea();
chartArea.Name = "PieChartArea";
pieChart.ChartAreas.Add(chartArea);
pieChart.Dock = DockStyle.Fill;
pieChart.Location = new Point(0, 50);
pieChart.Palette = ChartColorPalette.Fire;
pieChart.BackColor = Color.Transparent;
pieChart.ChartAreas[0].BackColor = Color.Transparent;
Series series2 = new Series
{ Name = "Series2", IsVisibleInLegend = true, ChartType = SeriesChartType.Pie };
pieChart.Series.Add(series2);
for (int i = 0; i < dt.Rows.Count; i++)
{
series2.Points.Add((int)dt.Rows[i]["YValues"]);
var p2 = series2.Points[i];
p2.Color = Color.FromArgb((byte)r.Next(90, 255), (byte)r.Next(90, 255), 160);
p2.LegendText = dt.Rows[i]["XValues"].ToString();
}
pieChart.Legends.Add(new Legend("Legend2"));
pieChart.Legends["Legend2"].BackColor = Color.Transparent;
pieChart.Series["Series2"].Legend = "Legend2";
series2.IsVisibleInLegend = true;
gboReport1.Controls.Add(pieChart);
What am I missing? Please help.
Here is the output of the bar chart:
Bar Chart with bad Legend
Here is the output of the pie chart:
Pie Chart with good Legend

That is how Bar and Pie charts are designed to work.
All ChartTypes except Pie charts display the Series.Names or the SeriesTexts in their Legend.
Only Pie charts, which only have one Series anyway will display the DataPoint.YValues[0].
If you really want to display datapoint data in your Legend you can do that, but of course it will look crowded if you add more than a few data points..
This is an example of how you can add hide the regular Legend and add a new one which displays the data values:
chart1.ApplyPaletteColors();
chart1.Legends[0].Enabled = false;
Legend L2 = new Legend();
chart1.Legends.Add(L2);
L2.Docking = Docking.Right;
foreach (DataPoint dp in yourSeries.Points)
{
LegendItem LI = new LegendItem(dp.YValues[0].ToString("0.##"), dp.Color, "");
LI.BorderWidth = 0;
L2.CustomItems.Add(LI);
}
If you want to you can also add those items to the regular Legend; simply create a reference to it and use the code above:
Legend L1 = chart1.Legends[0];
Note that you can't delete the original items from the original Legend, though!

MS Chart: X-AXIS labels repeating

I am trying to create multi series line chart using MS Chart. I have created it successfully. But the problem is the x-axis labels repeation. Here is what is created
Can anyone tell me why the months are repeated? how can i avoid it?
UPDATE:
Here is the code:
DateTime[] xvals = {DateTime.Now.AddMonth(-1),DateTime.Now};
decimal[] gvals = {4.3,0};
decimal[] ypvals = {0,0};
decimal[] yvals = {3.5,0};
// create the chart
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chart.BorderlineWidth = 3;
var chartArea = new ChartArea();
chartArea.AxisX.MajorGrid.LineWidth = 0;
//Remove Y-axis grid lines
chartArea.AxisY.MajorGrid.LineWidth = 0;
chartArea.AxisX.LabelStyle.Format = "MMM";
chartArea.AxisX.MajorGrid.LineColor = Color.LightGray;
chartArea.AxisY.MajorGrid.LineColor = Color.LightGray;
chartArea.AxisX.LabelStyle.Font = new Font("Consolas", 8);
chartArea.AxisY.LabelStyle.Font = new Font("Consolas", 8);
chart.ChartAreas.Add(chartArea);
var series = new Series();
series.Name = "Y";
series.Legend = "Y";
series.ChartType = SeriesChartType.Line;
series.XValueType = ChartValueType.DateTime;
series.IsVisibleInLegend = true;
series.Color = Color.Red;
series.IsValueShownAsLabel = true;
series.BorderWidth = 2;
chart.Series.Add(series);
// bind the datapoints
chart.Series[0].Points.DataBindXY(xvals, yvals);
var series2 = new Series();
series2.Name = "YP";
series2.Legend = "YP";
series2.ChartType = SeriesChartType.Line;
series2.XValueType = ChartValueType.DateTime;
series2.IsVisibleInLegend = true;
series2.Color = Color.Yellow;
series2.IsValueShownAsLabel = true;
series2.BorderWidth = 2;
chart.Series.Add(series2);
// bind the datapoints
chart.Series[1].Points.DataBindXY(xvals, ypvals);
var series3 = new Series();
series3.Name = "G";
series3.Legend = "GG";
series3.ChartType = SeriesChartType.Line;
series3.XValueType = ChartValueType.DateTime;
series3.IsVisibleInLegend = true;
series3.Color = Color.Blue;
series3.IsValueShownAsLabel = true;
series3.BorderWidth = 2;
chart.Series.Add(series3);
// bind the datapoints
chart.Series[2].Points.DataBindXY(xvals, gvals);
// draw!
chart.Invalidate();
// write out a file
chart.SaveImage("D:\\cha.png", ChartImageFormat.Png);

Ok, I have got the solution.
I have just converted the
series1.XValueType = ChartValueType.Date;
series2.XValueType = ChartValueType.Date;
series3.XValueType = ChartValueType.Date;
TO:
series1.XValueType = ChartValueType.String;
series2.XValueType = ChartValueType.String;
series3.XValueType = ChartValueType.String;
and instead of using dates in the xAxisValues array used months name as string.
DateTime[] xvals = {DateTime.Now.AddMonth(-1),DateTime.Now};
TO:
string[] xvals = {DateTime.Now.AddMonth(-1).ToString("MMM"),DateTime.Now.ToString("MMM")};
Hope this helps someone else.

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