/// <summary>
/// Returns a string representation of the search criteria
/// </summary>
/// <returns>A <see cref="string"/> representation of the search criteria</returns>
public override string ToString()
{
var fieldName = FilterField.GetAttributeOfType <EnumMemberAttribute>().Value;
var filterOperator = FilterOperator.GetAttributeOfType <EnumMemberAttribute>().Value;
var filterValue = ValueAsString(FilterValue);
return($"{fieldName}{filterOperator}{filterValue}");
}
/// <summary>
/// Converts the filter operator into a string as expected by the SendGrid Email Activities API.
/// Can be overridden in subclasses if the operator needs special formatting.
/// </summary>
/// <returns>The string representation of the operator.</returns>
public virtual string ConvertOperatorToString()
{
return(FilterOperator.GetAttributeOfType <EnumMemberAttribute>()?.Value ?? FilterOperator.ToString());
}
