Dashboard for WinForms - How to Aggregate Data by String Concatenation

This example shows how to use string concatenation to aggregate data in client mode.

Files to Look At

• Form1.cs (VB: Form1.vb)
• StringConcatFunction.cs (VB: StringConcatFunction.vb)
• Program.cs (VB: Program.vb)

Overview

In this example, the Grid dashboard item displays СontactName values concatenated by country.

The following expression uses string concatenation to aggregate data for СontactName values:

Calculated Field	Expression
Contact names by countries	StringConcat([ContactName])

Call the CriteriaOperator.RegisterCustomFunction method to register a custom function in your project (see Program.cs/Program.vb).

Documentation

• Expression Constants, Operators, and Functions
• Grouping
• ICustomFunctionOperatorBrowsable
• ICustomFunctionOperatorFormattable

More Examples

• Dashboard for WinForms - How to Calculate the Numeric Group Interval
• Dashboard for WinForms - How to Calculate Fiscal Functions from Date-Time Data Fields
• Dashboard for WinForms - How to Aggregate Data by the Field's First Value

Does This Example Address Your Development Requirements/Objectives?

(you will be redirected to DevExpress.com to submit your response)