Hi @JayChase many thanks for your reply, its work but there is something confuse happening as the record for example of post if i change it and click on update all the post for all records in the table will be same, also when i click on update button i need to click it twice then the datalist will be in itemtemplate mode. please check the link below i have record my screen may it will give more info about what is happening with me
https://www.youtube.com/watch?v=hkp6eQTANDc&feature=youtu.be