mshaji
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Invalid data has been used to update the list item. The field you are trying to update may be read only.
I have SharePoint blog and I created a custom web part to add the comments for a new post. But when i add comment item by using this web part then its giving an error "Invalid data has been used to update the list item. The field you are trying to update may be read only."
Please see the attached code here
Does any one have an Idea!
regards
string DURL = "http://myURL/";
using (SPSite site = new SPSite(DURL))
{
using (SPWeb web = site.OpenWeb())
{
web.AllowUnsafeUpdates = true;
SPList listLook = web .Lists ["Posts"];
SPList list = web.Lists["Comments"];
SPListItem Item1 = list.Items.Add();
Item1["Title"] = "My testing title";
Item1.Fields["Post Id"].ReadOnlyField = false;
Item1["Post Id"] = 1;
Item1.Update();
Item1.Fields["Post Title"].ReadOnlyField = true;
Item1.Fields["Post Id"].ReadOnlyField = true;
}
}
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but I think you are going at this the wrong way..
in any case ,let me know if that worked.