TIWCGJQGridOptions.MultiSort Property

If set to true enables the multisorting. The options work if the datatype is local. In case when the data is obtained from the server the sidx parameter contain the order clause. It is a comma separated string in format field1 asc, field2 desc …, fieldN. Note that the last field does not not have asc or desc. It should be obtained from sord parameter When the option is true the behavior is a s follow. The first click of the header field sort the field depending on the firstsortoption parameter in colModel or sortorder grid parameter. The next click sort it in reverse order. The third click removes the sorting from this field.

Reference

• TIWCGJQGridOptions
• IWCGJQGrid