Add a custom function to the expression engine and call it from a dashboard template during rendering.

Registering the function. Define the function signature, register it with the expression engine, and call it from a template expression during rendering.
StiFunctions.AddFunction("MyCategory", "MySum",
    "description", typeof(CustomFunction),
    typeof(decimal), "Calculates a sum of the specified set of values.",
    new[] { typeof(object) }, new[] { "values" }, new[] { "A set of values" });

this.Report = StiReport.CreateNewDashboard();
StiFunctions.AddFunction registers the method with its category, name, return type and parameters. It then appears in the designer's function list and can be used in any dashboard expression.
Auf dem Screenshot unten Sie können das Ergebnis des Beispiel-Codes ansehen:

Adding a Custom Function to the Designer

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