csharp DevExpress - ReportDesigner - XRPivotGrid - BeforePrint - SelectedValues

Posted 2021-05-12

using System.Data;
using System.Linq;

private string SelectedValues(string columnName, string emptyTextValue)
{
    DataTable dt = ((DataSet)Report.DataSource).Tables[0];
    var list = (from r in dt.AsEnumerable() select r[columnName]).Distinct().OrderBy(x => x).ToList();
    var values = string.Empty;
    foreach(var row in list)
        if(!String.IsNullOrEmpty((string)row))
              values += row != list.Last()
                    ? String.Format("{0}, ", row)
                    : String.Format("{0}", row);
    
    return String.IsNullOrEmpty(values)
        ? emptyTextValue
        : values;
}