This error is shown when an attempt to assign a value to a property inside a struct.<\/p>\n
e.g<\/p>\n
System.Drawing.Point p = new Point();
\np.X = 1; \/\/legal of course<\/p>\n
Listlist = new List();
\nlist.Add(p);
\nlist[0].X = 123; \/\/Cannot modify the return value of System.Collections.Generic.List.this[int]\u2018 because it is not a variable<\/p>\n
Remember structs are value types. They are processed like integers and only assigned as a whole.
\nTherefore when accessed from a list a copy of the struct is returned. Assigning to the copy is pointless, hence the error. <\/p>\n
You can assign one member by using the following method<\/p>\n
System.Drawing.Point p = list[0];
\np.X = 123;
\nlist[0] = p;<\/p>\n","protected":false},"excerpt":{"rendered":"
This error is shown when an attempt to assign a value to a property inside a struct. e.g System.Drawing.Point p = new Point(); p.X = 1; \/\/legal of course Listlist = new List(); list.Add(p); list[0].X = 123; \/\/Cannot modify the return value of System.Collections.Generic.List.this[int]\u2018 because it is not a variable Remember structs are value types. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-402","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"https:\/\/thomas-jansen.eu\/index.php?rest_route=\/wp\/v2\/posts\/402","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thomas-jansen.eu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thomas-jansen.eu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thomas-jansen.eu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/thomas-jansen.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=402"}],"version-history":[{"count":0,"href":"https:\/\/thomas-jansen.eu\/index.php?rest_route=\/wp\/v2\/posts\/402\/revisions"}],"wp:attachment":[{"href":"https:\/\/thomas-jansen.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thomas-jansen.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thomas-jansen.eu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}