Sharepoint 2013 web service to update column content

Question

I have a folder in a sharepoint list. Folder have columns ie Title, modified by, modified date, details. I am trying to update details column content with csharp code for that folder. I am trying to find sharepoint service method to update a column content
for a list item.
Added my sp site service ex: http://mysite/_vti_bin/Lists.asmx as reference
I included service reference in my project and create object.
I am referrring the below service to check if I can use any method from it but unable to find it. Do we have any method to 
https://msdn.microsoft.com/en-us/library/ms774680(v=office.12).aspx
Sri

Answer 1

Hi Sri,
Per my understanding, you might want to update item using Lists Web Service.
In Lists.asmx, the methods available are as below:
https://msdn.microsoft.com/en-us/library/lists.lists_members(v=office.12).aspx
I suggest you follow the documentation below about updating list item using Lists Web Service for a try in your environment:
https://msdn.microsoft.com/en-us/library/office/ms440289(v=office.14).aspx
Thanks         
Patrick Liang
TechNet Community Support
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