Pinoy Tutorials, Tips and Tricks

The example below is a simple way on how to Plot a Graph in Chart Windows Form Control using VB.Net. <div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgftdFl7e0YawGP_TGn4YH6cUzhWKabSYMRQptbIH5mNoQWFXci5VBQQcqmkXtC74w-UWfcfLrwIQjDdw0kPXvPeNGQOIZYBFZBU8jYLt6fxU17JGUGwMvxsosFun_SGp-i6N7zCeAEd6QX/s1600/Graph.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Implement Graph on Chart Windows Form Control" border="1" height="246" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgftdFl7e0YawGP_TGn4YH6cUzhWKabSYMRQptbIH5mNoQWFXci5VBQQcqmkXtC74w-UWfcfLrwIQjDdw0kPXvPeNGQOIZYBFZBU8jYLt6fxU17JGUGwMvxsosFun_SGp-i6N7zCeAEd6QX/s400/Graph.png" title="Implement Graph on Chart Windows Form Control" width="400" /></a></div><div class="separator" style="clear: both; text-align: center;"></div> Requirements: 1. Microsoft Visual Studio (In my case, I'm using Visual Studio 2010 Express Edition). To Begin with: 1. Start your Microsoft Visual Basic 2010 Express. 2. In the New Project window, Choose "Windows Form Application" and name it to whatever you like or something like "Plot Graph" then Click "OK". 3. You must now be able to see the Form. On the toolbox Add the following controls onto the form and update its properties.      a. Form: Name:=frmGraph      b. (1) Chart: Name:=Chart1      c. (1) Textbox: Name:=txtData, Multiline:=True, Text:=30;52;57;57;68;93;129;173;209;232;240;232;217;196;169;141;116;98;86;80;78;76;76;79;81;83;86;91;95;97;95;93;95;99;103;105;106;107;110;116;120;122;123;124;127;132;137;139;137;136;132;126;124;122;117;113;110;105;97      d. (1) Button: Name:=btnPlot, Text:=&Plot *Then arrange and re-size the controls as you can see below. But you can still orient it to whatever you want. <div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUwDAroqj8g0I_u5G6UrSuRKrYzBzibgPB9zmaIdih49-zQON9IBJuIX9lvzVsV3BquePQHxaUnEKdP_GNwLhkCnvotkZMTi4G1l98Zg7z7sCMWwS97nzlX3aZoXFw0gq86_zdZ0Y5uwP_/s1600/Form+Controls.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Form Controls Orientation" border="0" height="288" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUwDAroqj8g0I_u5G6UrSuRKrYzBzibgPB9zmaIdih49-zQON9IBJuIX9lvzVsV3BquePQHxaUnEKdP_GNwLhkCnvotkZMTi4G1l98Zg7z7sCMWwS97nzlX3aZoXFw0gq86_zdZ0Y5uwP_/s320/Form+Controls.jpg" title="Form Controls Orientation" width="320" /></a></div><input type="hidden" name="IL_IN_TAG" value="1"/> 4. Now Press F7 to view the code editor window. Code Blocks: :namespace - We need to declare the namespace containing the methods and properties of the Chart Windows Form Control in order to use its properties and methods. <pre class="brush: vb">Imports System.Windows.Forms.DataVisualization.Charting </pre> :frmGraph_Load() - When the form is loaded we do not want to see the Gridlines behind the plot so we'll disable it by setting the MajorGrid Property of the ChartAreas X and Y Axis Enabled to False and set it background to transparent. <pre class="brush: vb"> Private Sub frmGraph_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load With Chart1.ChartAreas(0) .AxisX.MajorGrid.Enabled = False .AxisY.MajorGrid.Enabled = False .AxisX.MajorGrid.LineColor = Color.Coral .AxisY.MajorGrid.LineColor = Color.Coral .BackColor = Color.Transparent End With End Sub </pre> :btnPlot_Click() - When the Plot button is clicked, we declare an Array and 2 collections of series values.         CD = An array collection that holds the data we split from the data Textbox.                s1 = Is our first series collection         s2 = is our second series collection (Both have the same values since we only need to plot the Points and a Line. <pre class="brush: vb"> Private Sub btnPlot_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPlot.Click Dim CD As Array Dim s1 As New Series Dim s2 As New Series Dim xLab As Long 'GET data from the textbox CD = Split(txtData.Text, ";", -1) Chart1.Series.Clear() s1.Name = "Series 1" s1.ChartType = SeriesChartType.FastPoint s2.Name = "Series 2" s2.ChartType = SeriesChartType.FastLine xLab = 1 'loop through each array and set series values For Each d In CD s1.Points.AddXY(xLab, d) s2.Points.AddXY(xLab, d) xLab = xLab + 1 Next 'Add update the chart with the series values Chart1.Series.Add(s1) Chart1.Series.Add(s2) End Sub </pre> Full Code: <pre class="brush: vb">Imports System.Windows.Forms.DataVisualization.Charting Public Class frmGraph Private Sub frmGraph_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load With Chart1.ChartAreas(0) .AxisX.MajorGrid.Enabled = False .AxisY.MajorGrid.Enabled = False .AxisX.MajorGrid.LineColor = Color.Coral .AxisY.MajorGrid.LineColor = Color.Coral .BackColor = Color.Transparent End With End Sub Private Sub btnPlot_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPlot.Click Dim CD As Array Dim s1 As New Series Dim s2 As New Series Dim xLab As Long 'GET data from the textbox CD = Split(txtData.Text, ";", -1) Chart1.Series.Clear() s1.Name = "Series 1" s1.ChartType = SeriesChartType.FastPoint s2.Name = "Series 2" s2.ChartType = SeriesChartType.FastLine xLab = 1 'loop through each array and set series values For Each d In CD s1.Points.AddXY(xLab, d) s2.Points.AddXY(xLab, d) xLab = xLab + 1 Next 'Add update the chart with the series values Chart1.Series.Add(s1) Chart1.Series.Add(s2) End Sub End Class </pre> 5. Finally, build and run the project.

dotNet VB.NET Implement a Graph from ASCII Data to Chart Windows Form Control using VB.NET

The example below is a simple way on how to Plot a Graph in Chart Windows Form Control using VB.Net. Requirements: 1. Microsoft Visual Studi...

Pinoy Tutorials, Tips and Tricks

Implement a Graph from ASCII Data to Chart Windows Form Control using VB.NET

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