Naming expression for the aggregated result data columns. This naming expression is a string containing placeholder to be replaced with values during Pivot as follows:
%M is replaced with the aggregation method name (empty string for None).
%V is replaced with the value column name.
%C is replaced with a concatenated list of category values separated by Category separator.

public string ResultNamingExpression { get; set; }

public string ResultNamingExpression { get; set; }