Develop Reference

how to get cursor from name of cursor?

like below that we get color , I Want set the Cursor property of Button
Color red = Color.FromName("Red");
button1.BackColor = red;
may be something like this:
String x = "Hand"
button1.Cursor = Cursor.FromName(x);
Here is simple example:
https://stackoverflow.com/a/37101840/6306993
CursorConverter cConverter = new CursorConverter();
Cursor c = (Cursor) cConverter.ConvertFromString("Hand");
this.button1.Cursor = c;

as my understanding, you are looking for how to set Cursor for button depend in existing variable. Please see the example below:
Cursor x = Cursors.Hand;
button1.Cursor = x;
if you still get error please check again "Cursors" not "Cursor" in the first line.

Looks like you are looking for CursorConverter.
Here is simple example:
CursorConverter cConverter = new CursorConverter();
Cursor c = (Cursor) cConverter.ConvertFromString("Hand");
this.button1.Cursor = c;
More information:
https://msdn.microsoft.com/en-us/library/system.windows.forms.cursorconverter(v=vs.110).aspx

Some questions about this bar graph code

Below is the code for a bar graph using System.Windows.Forms.DataVisualization.Charting that I got from the Web. The problem is that I don't understand several parts of it and I'm at a loss as to where to find a good resource to learn about all the ins and outs of using all of the charting stuff. Isn't there some 3rd party book available? Normally Microsoft provides example code for how to use the various classes and members but when it comes to charting I can't find anything other than a few random and unexplained 3rd party examples on the Web.
Anyway, below is the code and the graph it produces follows it. I have the following questions...
Why are two of the bars to the left of the 1 on the X axis and the other two to the right of it? What controls this and how do I make them start at 0?
What controls the width of the bars?
How do I remove all labels along the X axis (the 0, 1, and 2)?
About all I do understand about the results I'm seeing is why there are 4 bars and why their Y-values are 2, 1, 7, and 5.
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
System.Windows.Forms.DataVisualization.Charting.ChartArea chartArea1 = new System.Windows.Forms.DataVisualization.Charting.ChartArea();
System.Windows.Forms.DataVisualization.Charting.Series series1 = new System.Windows.Forms.DataVisualization.Charting.Series();
System.Windows.Forms.DataVisualization.Charting.Chart chart1 = new System.Windows.Forms.DataVisualization.Charting.Chart();
chartArea1.Name = "ChartArea1";
chart1.ChartAreas.Add(chartArea1);
chart1.Location = new System.Drawing.Point(0, 0);
chart1.Name = "chart1";
series1.ChartArea = "ChartArea1";
series1.Name = "Series1";
chart1.Series.Add(series1);
chart1.Size = new System.Drawing.Size(500, 400);
chart1.TabIndex = 0;
chart1.Text = "chart1";
this.Controls.Add(chart1);
string[] seriesArray = { "Cat", "Dog", "Bird", "Monkey" };
int[] pointsArray = { 2, 1, 7, 5 };
for (int i = 0; i < seriesArray.Length; i++)
{
Series series = chart1.Series.Add(seriesArray[i]);
series.Points.Add(pointsArray[i]);
}
}
}

All your datapoints are added without a valid x-value so by default they are added 'indexed' and placed at 1 . You can change that by adding them with a valid x-value of your choice; use the AddXY method for this. (Recommended). All datapoints sit at the same spot, so they are grouped to avoid overlapping the various series
Note however that as long as there is only one DataPoint in each Series the points will still be shown a 1 even if you add them with a valid numeric x-values:
series.Points.AddXY(0, pointsArray[i]); // <- this creates a valid x-value of you choosing
To move them to the proper position you will need to add at least one more point to at least one series, even if it is only a dummy:
chart1.Series[0].Points.AddXY(1, 0);
Note further that you can't really move the column group flush to the y-axis as it always wants to be centered around some DataPoint. So you would have to calculate the total width of the group and then use half of it as the Minimum x-value to display; but this will be a rather complex calculation involving ChartArea percentage etc. Not recommended.. You may be fine with some trial and error..:
chartArea1.AxisX.Minimum = -0.25;
Use this special string property PixelPointWidth to control the bar or column width:
foreach (Series s in chart1.Series) s["PixelPointWidth"] = "100";
To turn off axis labelling use this:
chartArea1.AxisX.LabelStyle.Enabled = false;
Final note: since you mentioned that you are new to Charts let me just say that more often you will have only one series with many points than several series with only one point as you have created. But as it stands it is fine, one series for each category and your categries are the animals.
But imagine some other animal statistics like weight, price, age, speed etc..
Now you might want to use these as the categories and add one data point for each animal..

I think this piece of code will do what you expected. Your created a new series for each animal so you get four series with one data point and the chart tries to group all values on data point "1".
string[] seriesArray = { "Cat", "Dog", "Bird", "Monkey" };
Series series = chart1.Series.Add("Animals");
int[] pointsArray = { 2, 1, 7, 5 };
for (int i = 0; i < seriesArray.Length; i++)
{
DataPoint point = series.Points.Add(pointsArray[i]);
point.AxisLabel = seriesArray[i];
}

How to align content of legend to left in Microsoft .net chart?

I have legend text of varying length and need to align the legend items to the left of the legend for a consistent layout.
| My Legend |
| X what I have now |
| X what I have now long | --> causes irregular layout
| X what I need |
| X what I need long | --> nice, regular layout
Must be something obvious but have been looking at this for hours and do not seem to be any closer to a working example. Thanks in advance for your help!
EDIT:
I am trying to produce a pie-chart so have multiple series, each of which will need the series symbol and the appropriate series datapoint text, as is the case in the default legend layout. My legend creation method:
public Legend CreateLegend()
{
var legend = new Legend();
legend.Enabled = true;
legend.Font = new Font("Arial", 11F);
legend.ForeColor = Color.FromArgb(102, 102, 102);
legend.InsideChartArea = "Result Chart";
legend.Position = new ElementPosition(50, 20, 50, height);
legend.LegendStyle = LegendStyle.Column;
return legend;
}
And my series creation method (which currently takes the legend as a parameter from my experiments/ideas for a solution here):
public Series CreateSeries(List<ChartDivision> series, Legend legend)
{
var seriesDetail = new Series();
seriesDetail.Name = "Result Chart";
seriesDetail.IsValueShownAsLabel = false;
seriesDetail.ChartType = SeriesChartType.Pie;
seriesDetail.BorderWidth = 2;
foreach(var datapoint in series)
{
var p = seriesDetail.Points.Add(datapoint.Logged);
p.LegendText = datapoint.Name;
}
seriesDetail.ChartArea = "Result Chart";
return seriesDetail;
}

Speaking of the System.Windows.Forms.DataVisualization.Charting.Chart here. This is in fact default behavior.
But you can override it:
Select the chart in the designer, click on the Legends-property. In the appropriate legend, edit CellColumns-Property.
This is by default empty. You can add two columns and set the first one to "ColumnType=SeriesSymbol" to get the default with custom columns. Then, on the second column, the alignment property (by default on MiddleCenter) should be what you are looking for.
So here is my test program: http://pastebin.com/ZTwMhsXB
Add a chart control and two buttons to the form and run it. However, I was unable to reproduce your problem.
Note that I did some more wiring. Can you please confirm that you have these lines somewhere:
chart1.Legends.Add(leg);
// and
legend.Name = // whatever
seriesDetail.Legend = legend.Name;
Because else it may be that you are not seeing your created legend but the default one. If you don't add the legend to the chartarea, it is invisible.
Okay, so we are now at the point that the text is left-justified within its column, bit the columns are always centered within the legend-area. See this SO thread for the solution: How to control winform mschart legend text alignment c#?
Edit the code like this:
legend.LegendStyle = LegendStyle.Column;
legend.CellColumns.Add(new LegendCellColumn() {
ColumnType = LegendCellColumnType.SeriesSymbol,
MinimumWidth = 250,
MaximumWidth = 250
});
legend.CellColumns.Add(new LegendCellColumn()
{
ColumnType = LegendCellColumnType.Text,
Alignment = ContentAlignment.MiddleLeft,
MinimumWidth = 1500,
MaximumWidth = 1500
});
Note that the numbers 250 and 1500 are percentages of the font size therefore 1500 means 15-times the font height.
I have updated the pastebin accordingly ( http://pastebin.com/GGCZGWF9 ) and here is a screenshot of my sample program:

Try something like this:
myChart.Legends["MySeries Name"].CellColumns.Add(new LegendCellColumn("", LegendCellColumnType.Text, "MySeries Name"));
myChart.Legends["MySeries Name"].CellColumns[1].Alignment = ContentAlignment.MiddleLeft;

Labelling and circle a specific point in zedgraph

I am currently doing a project in which I've managed to identify the peak I want. However, I wanted to do more like circling the particular point with a label attached to it. Is it possible to do that in Zedgraph?
I've attached a snippet of my code which only include a text label to that point, and I wanted to do more so people will identify the point more easily.
PointPair pt = myCurve.Points[i-1];
const double offset = 0.8;
TextObj text = new TextObj("P", pt.X, pt.Y + offset,
CoordType.AxisXYScale, AlignH.Left, AlignV.Center);
text.ZOrder = ZOrder.A_InFront;
text.FontSpec.Border.IsVisible = false;
text.FontSpec.Fill.IsVisible = false;
text.FontSpec.Fill = new Fill( Color.FromArgb( 100, Color.White ) );
myPane.GraphObjList.Add(text);
Any help is appreciated! Thanks!

Make a LineItem as follows
LineItem line = new LineItem("Point", new double[] {pt.x}, new double[] {pt.y}, Color.Black, SymbolType.Circle);
line.Symbol.Size = 20;
line.Symbol.Fill = new Fill(Color.Transparent);
myPane.CurveList.Add(line);
This should create a large empty circle centered around your point. Obviously, you can adjust color and size as you see fit, and the ZOrder if you need to. You might want to adjust your legend so it doesn't include this point. Alternatively, you can name this line with your label and leave it in the legend as a way of tagging it. The only other way for a label is to do what you're doing, as I'm not sure of a way to associate labels directly to a line.

How to center a bold element?

Hy my example code:
Bold b = new Bold(new Run("TODO"));
b.FontSize = 50;
My Question is:
How to center the bold element?

I assume this is in reference to classes in System.Windows.Documents. You need to set the TextAlignment property on the thing (a Paragraph usually) that b is contained in.

The paragraph around the Run should define the alignment.
Bold b = new Bold(new Run("TODO"));
b.FontSize = 50;
var p = new Paragraph(b) {TextAlignment = TextAlignment.Center};