Using AsNoTracking, how to check eagerly loaded navigation properties for null?
Using ASP.NET Core 2.1, consider the following code:
var customer = await db.Customers
.Include(x => x.Address)
.Where(x => x.CustomerId == user.CustomerId)
.AsNoTracking()
.FirstOrDefaultAsync();
When I try to check if the customer's Address is null,
if (customer.Address != null)
// do stuff
and an Address does not exist for that customer, then I get the following error:
InvalidOperationException: Error generated for warning 'Microsoft.EntityFrameworkCore.Infrastructure.DetachedLazyLoadingWarning: ...
However, if the address exists (i.e. it's not null), then everything works fine.
Is there a proper way to check if an eagerly loaded navigational property has been found and still use AsNoTracking?
c# entity-framework asp.net-core
edited Nov 12 '18 at 22:00
pfx
5,015121734
asked Nov 12 '18 at 16:13
Wellspring
1,161930
add a comment |
Using ASP.NET Core 2.1, consider the following code:
var customer = await db.Customers
.Include(x => x.Address)
.Where(x => x.CustomerId == user.CustomerId)
.AsNoTracking()
.FirstOrDefaultAsync();
When I try to check if the customer's Address is null,
if (customer.Address != null)
// do stuff
and an Address does not exist for that customer, then I get the following error:
InvalidOperationException: Error generated for warning 'Microsoft.EntityFrameworkCore.Infrastructure.DetachedLazyLoadingWarning: ...
However, if the address exists (i.e. it's not null), then everything works fine.
Is there a proper way to check if an eagerly loaded navigational property has been found and still use AsNoTracking?
c# entity-framework asp.net-core
edited Nov 12 '18 at 22:00
pfx
5,015121734
asked Nov 12 '18 at 16:13
Wellspring
1,161930
Apparently lazy-loading isn't supported for NoTracking querieshttps://github.com/aspnet/EntityFrameworkCore/issues/13173
– Bazza
Nov 12 '18 at 16:17
I believe to resolve this you will need to apply an include.docs.microsoft.com/en-us/ef/core/querying/related-data
– Bazza
Nov 12 '18 at 16:19
add a comment |
Using ASP.NET Core 2.1, consider the following code:
var customer = await db.Customers
.Include(x => x.Address)
.Where(x => x.CustomerId == user.CustomerId)
.AsNoTracking()
.FirstOrDefaultAsync();
When I try to check if the customer's Address is null,
if (customer.Address != null)
// do stuff
and an Address does not exist for that customer, then I get the following error:
InvalidOperationException: Error generated for warning 'Microsoft.EntityFrameworkCore.Infrastructure.DetachedLazyLoadingWarning: ...
However, if the address exists (i.e. it's not null), then everything works fine.
Is there a proper way to check if an eagerly loaded navigational property has been found and still use AsNoTracking?
c# entity-framework asp.net-core
edited Nov 12 '18 at 22:00
pfx
5,015121734
asked Nov 12 '18 at 16:13
Wellspring
1,161930
Using ASP.NET Core 2.1, consider the following code:
var customer = await db.Customers
.Include(x => x.Address)
.Where(x => x.CustomerId == user.CustomerId)
.AsNoTracking()
.FirstOrDefaultAsync();
When I try to check if the customer's Address is null,
if (customer.Address != null)
// do stuff
and an Address does not exist for that customer, then I get the following error:
InvalidOperationException: Error generated for warning 'Microsoft.EntityFrameworkCore.Infrastructure.DetachedLazyLoadingWarning: ...
However, if the address exists (i.e. it's not null), then everything works fine.
Is there a proper way to check if an eagerly loaded navigational property has been found and still use AsNoTracking?
c# entity-framework asp.net-core
c# entity-framework asp.net-core
edited Nov 12 '18 at 22:00
pfx
5,015121734
asked Nov 12 '18 at 16:13
Wellspring
1,161930
edited Nov 12 '18 at 22:00
pfx
5,015121734
asked Nov 12 '18 at 16:13
Wellspring
1,161930
edited Nov 12 '18 at 22:00
pfx
5,015121734
edited Nov 12 '18 at 22:00
pfx
5,015121734
edited Nov 12 '18 at 22:00
pfx
5,015121734
5,015121734
asked Nov 12 '18 at 16:13
Wellspring
1,161930
asked Nov 12 '18 at 16:13
Wellspring
1,161930
asked Nov 12 '18 at 16:13
Wellspring
1,161930
1,161930
Apparently lazy-loading isn't supported for NoTracking querieshttps://github.com/aspnet/EntityFrameworkCore/issues/13173
– Bazza
Nov 12 '18 at 16:17
I believe to resolve this you will need to apply an include.docs.microsoft.com/en-us/ef/core/querying/related-data
– Bazza
Nov 12 '18 at 16:19
add a comment |
Apparently lazy-loading isn't supported for NoTracking querieshttps://github.com/aspnet/EntityFrameworkCore/issues/13173
– Bazza
Nov 12 '18 at 16:17
I believe to resolve this you will need to apply an include.docs.microsoft.com/en-us/ef/core/querying/related-data
– Bazza
Nov 12 '18 at 16:19
Apparently lazy-loading isn't supported for NoTracking querieshttps://github.com/aspnet/EntityFrameworkCore/issues/13173
– Bazza
Nov 12 '18 at 16:17
Apparently lazy-loading isn't supported for NoTracking querieshttps://github.com/aspnet/EntityFrameworkCore/issues/13173
– Bazza
Nov 12 '18 at 16:17
I believe to resolve this you will need to apply an include.docs.microsoft.com/en-us/ef/core/querying/related-data
– Bazza
Nov 12 '18 at 16:19
I believe to resolve this you will need to apply an include.docs.microsoft.com/en-us/ef/core/querying/related-data
– Bazza
Nov 12 '18 at 16:19
add a comment |
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53266053%2fusing-asnotracking-how-to-check-eagerly-loaded-navigation-properties-for-null%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
active
oldest
votes
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53266053%2fusing-asnotracking-how-to-check-eagerly-loaded-navigation-properties-for-null%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Apparently lazy-loading isn't supported for NoTracking querieshttps://github.com/aspnet/EntityFrameworkCore/issues/13173
– Bazza
Nov 12 '18 at 16:17
I believe to resolve this you will need to apply an include.docs.microsoft.com/en-us/ef/core/querying/related-data
– Bazza
Nov 12 '18 at 16:19