For Unit code types, the CodeText property of a function must contain the full compile unit text. The unit must include the class "Calculator" in the UserFunction namespace, and must implement the ISimpleFunction interface.
To write code in Visual Basic
| Visual Basic |
Copy Code
|
|---|---|
Dim code As String = _ "Namespace UserFunction" & vbNewLine & _ " Class Calculator" & vbNewLine & _ " Implements ISimpleFunction" & vbNewLine & _ " Public Function Calculate(x As Double) As Double _" & vbNewLine & _ " Implements ISimpleFunction.Calculate" & vbNewLine & _ " Dim x2 As Double = x*x" & vbNewLine & _ " if( x<0)" & vbNewLine & _ " return -x" & vbNewLine & _ " else" & vbNewLine & _ " return -0.5*x2" & vbNewLine & _ " End If" & vbNewLine & _ " End Function" & vbNewLine & _ " End Class" & vbNewLine & _ "End Namespace" Dim yf As C1.Win.C1Chart.YFunction = New C1.Win.C1Chart.YFunction() yf.CodeType = C1.Win.C1Chart.FunctionCodeTypeEnum.Unit yf.CodeLanguage = C1.Win.C1Chart.FunctionCodeLanguageEnum.VB yf.CodeText = code yf.MinX = -5 yf.MaxX = 5 yf.LineStyle.Color = Color.Green yf.LineStyle.Thickness = 3 C1Chart1.ChartGroups(0).ChartData.FunctionsList.Add(yf) |
|
To write code in C#
| C# |
Copy Code
|
|---|---|
string code =
"namespace UserFunction" +
"{" +
" class Calculator : ISimpleFunction" +
" {" +
" public double Calculate(double x)" +
" {" +
" double x2 = x*x;" +
" if( x<0)" +
" return -x;" +
" else" +
" return -0.5*x2;" +
" }" +
" }" +
"}";
C1.Win.C1Chart.YFunction yf = new C1.Win.C1Chart.YFunction();
yf.CodeType = C1.Win.C1Chart.FunctionCodeTypeEnum.Unit;
yf.CodeText = code;
yf.MinX = -5;
yf.MaxX = 5;
yf.LineStyle.Color = Color.Green;
yf.LineStyle.Thickness = 2;
c1Chart1.ChartGroups[0].ChartData.FunctionsList.Add( yf);
|
|
