Hi Talha,
Thanks for contacting Syncfusion Forums.
QUERY: String number mixed case sorting
From your query we understand that you need to alphanumeric value in a specific manner.
When we sort the value you have specified, it will be sorted like A1, A15, A2, A3 only. This is the behavior of alphanumeric sorting.
In EJ1 Grid, we don’t have support for custom sorting. If you need to perform custom sorting, we suggest you to use EJ2 Grid.
Please refer the below help documentation,
If you have further queries, please get back to us.
Regards,
Padmavathy Kamalanathan