大约有 15,571 项符合查询结果（耗时：0.0275秒） [XML]
“A lambda expression with a statement body cannot be converted to an expression tree”
In using the EntityFramework , I get the error " A lambda expression with a statement body cannot be converted to an expression tree " when trying to compile the following code:
...
Declaring an enum within a class
...некоторый код
break;
}
Color2 c2 = Color2::Green;
c2 = c; //error
c2 = 3; //error
if (c2 == Color::Red ) {} //error
If (c2) {} error
I create macro to facilitate usage:
#define DEFINE_SIMPLE_ENUM(EnumName, seq) \
struct EnumName {\
enum type \
{ \
BOOST_PP_SEQ_FOR_EACH_...
How do I assert an Iterable contains elements with a certain property?
... This solution waste the possibility to show an appropriate error message.
– Giulio Caccin
May 6 '19 at 11:43
...
How to sort with lambda in Python
In Python, I am trying to sort by date with lambda. I can't understand my error message. The message is:
4 Answers
...
Unauthorised webapi call returning login page rather than 401
...sed for controllers with views. Http.AuthorizeAttribute will return a 401 error if authorization fails and Mvc.AuthorizeAttribute will redirect to the login page.
Updated 11/26/2013
So it appears things have drastically changed with MVC 5 as Brock Allen pointed out in his article. I guess the OW...
How to create .ipa file using Xcode?
...
Thanks, this helped, but I get these two errors when performing "Archive" on Xcode 10.1: clang: error: -ffunction-sections is not supported with -fembed-bitcode, clang: error: -fdata-sections is not supported with -fembed-bitcode. Would you help, please?
...
How can I efficiently download a large file using Go?
...
I'll assume you mean download via http (error checks omitted for brevity):
import ("net/http"; "io"; "os")
...
out, err := os.Create("output.txt")
defer out.Close()
...
resp, err := http.Get("http://example.com/")
defer resp.Body.Close()
...
n, err := io.Copy(out,...
How do I disable directory browsing?
...ding Options -Indexes FollowSymLinks to httpd.conf spits out the following error: "Either all Options must start with + or -, or no Option may." Therefore, what will work is Options -Indexes +FollowSymLinks
– John T.
Jan 3 '19 at 15:49
...
How can I make an “are you sure” prompt in a Windows batchfile?
...ers read from STDIN) specified after option /C (and Ctrl+C) and outputs an error beep if the user presses a wrong key.
CHOICE does not require pressing any other key than one of the acceptable ones. CHOICE exits immediately once an acceptable key is pressed while SET /P requires that the user finish...
Checking if a blob exists in Azure Storage
...n't throw or return an empty Stream or anything like that. You'll only get errors when you start downloading from it. It's a lot easier to handle this all in one place :)
– porges
Dec 8 '10 at 2:36
...