Invalid data has been used to update the list item. The field you are trying to update may be read only.

I got this error while updating an splistitem. It was coming while trying to update “Person or Group” type column.

This is the correct way to update the column of type “Person or Group”.

itemApprovalAssignment["Title"] = txtTitle.Text.Trim();
                    itemApprovalAssignment["Assign_x0020_To"] = oweb.EnsureUser(peAssignTo.CommaSeparatedAccounts);

i.e. to use EnsureUser method.



Author: Nishant Rana

I love working in and sharing everything about Microsoft.NET technology !

Please share your thoughts

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.