How to create Excel wireframe contour chart in C#, VB.NET?
This article explains how to create a wireframe contour chart in Excel using Syncfusion® Excel (XlsIO) library.
What is a wireframe contour chart?
A wireframe contour chart represents a 2D top view of surface charts without color on the surface. This chart is not easy to read and shows only the lines.
Wireframe Contour Chart
To create a wireframe contour chart in Excel using XlsIO, you need to do the following steps.
Steps to create a wireframe contour chart:
Step 1: Initialize the chart
Create a chart object by calling the worksheet.Charts.Add method.
C#
// Create the chart IChartShape chart = worksheet.Charts.Add();
Step 2: Assign data and select chart type
1) To plot the column and categories in the row, set the chart’s IsSeriesInRows property to false.
2) Set a range of data from the worksheet to the chart’s DataRange property before specifying the chart type.
3) Specify the chart type to ExcelChartType.Surface_NoColor_Contour enum value.
C#
// Set chart series in column for assigned data region chart.IsSeriesInRows = false; // Set region of Chart data chart.DataRange = worksheet["A1:D7"]; // Set chart type to Surface_NoColor_Contour chart.ChartType = ExcelChartType.Surface_NoColor_Contour;
For creating a wireframe contour chart, the series count must be greater than or equal to 2. The series should be set before selecting the chart type.
Step 3: Apply basic chart elements
Add the basic elements like the chart title, data labels and legend.
- ChartTitle of the chart object.
- Set TRUE to the chart’s HasLegend property, to show the legend.
C#
// Apply chart elements // Set Chart Title chart.ChartTitle = "Wireframe Contour Chart"; // Set Legend chart.HasLegend = true; chart.Legend.Position = ExcelLegendPosition.Bottom;
Additional applicable properties of the wireframe contour chart in Excel
To modify the depth axis of wireframe contour chart, use the PrimarySerieAxis (Depth Axis) property.
To know more about creating charts with various settings using the Syncfusion® Excel (XlsIO) library, please refer to the documentation.
The following C#/ VB.NET complete code snippet shows the creation of a wireframe contour chart using XlsIO.
C#
using Syncfusion.XlsIO;
using System.Reflection;
using System.IO;
namespace ChartSample
{
class Program
{
static void Main(string[] args)
{
using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Excel2016;
// Open existing workbook with data entered
Assembly assembly = typeof(Program).GetTypeInfo().Assembly;
Stream fileStream = assembly.GetManifestResourceStream("ChartSample.InputTemplate.xlsx");
IWorkbook workbook = application.Workbooks.Open(fileStream);
IWorksheet worksheet = workbook.Worksheets[0];
// Initialize chart and assign data
IChartShape chart = worksheet.Charts.Add();
chart.DataRange = worksheet["A1:D7"];
chart.ChartType = ExcelChartType.Surface_NoColor_Contour;
chart.IsSeriesInRows = false;
// Apply chart elements
// Set Chart Title
chart.ChartTitle = "Wireframe Contour Chart";
// Set Legend
chart.HasLegend = true;
chart.Legend.Position = ExcelLegendPosition.Bottom;
// Positioning the chart in the worksheet
chart.TopRow = 8;
chart.LeftColumn = 1;
chart.BottomRow = 23;
chart.RightColumn = 8;
// Saving and closing the workbook
Stream stream = File.Create("Output.xlsx");
workbook.SaveAs(stream);
}
}
}
}
VB.NET
Imports Syncfusion.XlsIO
Imports System.Reflection
Imports System.IO
Namespace ChartSample
Class Program
Public Shared Sub Main(ByVal args As String())
Using excelEngine As ExcelEngine = New ExcelEngine()
Dim application As IApplication = excelEngine.Excel
application.DefaultVersion = ExcelVersion.Excel2016
'Open existing workbook with data entered
Dim assembly As Assembly = GetType(Program).GetTypeInfo().Assembly
Dim fileStream As Stream = assembly.GetManifestResourceStream("ChartSample.InputTemplate.xlsx")
Dim workbook As IWorkbook = application.Workbooks.Open(fileStream)
Dim worksheet As IWorksheet = workbook.Worksheets(0)
'Initialize chart and assign data
Dim chart As IChartShape = worksheet.Charts.Add
chart.DataRange = worksheet("A1:D7")
chart.ChartType = ExcelChartType.Surface_NoColor_Contour
chart.IsSeriesInRows = False
'Apply chart elements
'Set Chart Title
chart.ChartTitle = "Wireframe Contour Chart"
'Set Legend
chart.HasLegend = True
chart.Legend.Position = ExcelLegendPosition.Bottom
'Positioning chart in the worksheet
chart.TopRow = 8
chart.LeftColumn = 1
chart.BottomRow = 23
chart.RightColumn = 8
'Saving and closing the workbook
Dim stream As Stream = File.Create("Output.xlsx")
workbook.SaveAs(stream)
End Using
End Sub
End Class
End Namespace
Take a moment to peruse the documentation where you can find basic Excel document processing options along with the features like import and export data, chart, formulas, conditional formatting, data validation, tables, pivot tables and protect the Excel documents, and most importantly, the PDF, CSV and Image conversions with code examples.
Conclusion
I hope you enjoyed learning about how to create Excel wireframe contour chart in C#, VB.NET.
You can refer to our XIsIO’s feature tour page to learn about its other groundbreaking features. Explore our UG documentation and online demos to understand how to manipulate data in Excel documents.
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