How to remove selected data that found on another list and take last 6 id through LINQ without foreach loop

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}

I have two tables User and Income. I am selecting usersId from Income table like:

var SelectedId= 

  objdb.Incomes.Where(x => x.NewUserId ==model.UserId).Select(x=>x.UserId).ToList();

now I want to select last 6 UserId from User that does not contain SelectedId
I know I can select six UserId like

objdb.Users.Select(x=> x.UserId).Take(6).ToList();

But I want only those data that doesn't in selected ID.

edited Mar 25 at 5:48

asked Jan 3 at 13:34

ArunPratap

1,62631128

add a comment |

I have two tables User and Income. I am selecting usersId from Income table like:

var SelectedId= 

  objdb.Incomes.Where(x => x.NewUserId ==model.UserId).Select(x=>x.UserId).ToList();

now I want to select last 6 UserId from User that does not contain SelectedId
I know I can select six UserId like

objdb.Users.Select(x=> x.UserId).Take(6).ToList();

But I want only those data that doesn't in selected ID.

edited Mar 25 at 5:48

asked Jan 3 at 13:34

ArunPratap

1,62631128

add a comment |

I have two tables User and Income. I am selecting usersId from Income table like:

var SelectedId= 

  objdb.Incomes.Where(x => x.NewUserId ==model.UserId).Select(x=>x.UserId).ToList();

now I want to select last 6 UserId from User that does not contain SelectedId
I know I can select six UserId like

objdb.Users.Select(x=> x.UserId).Take(6).ToList();

But I want only those data that doesn't in selected ID.

edited Mar 25 at 5:48

asked Jan 3 at 13:34

ArunPratap

1,62631128

I have two tables User and Income. I am selecting usersId from Income table like:

var SelectedId= 

  objdb.Incomes.Where(x => x.NewUserId ==model.UserId).Select(x=>x.UserId).ToList();

now I want to select last 6 UserId from User that does not contain SelectedId
I know I can select six UserId like

objdb.Users.Select(x=> x.UserId).Take(6).ToList();

But I want only those data that doesn't in selected ID.

c# entity-framework linq

edited Mar 25 at 5:48

asked Jan 3 at 13:34

ArunPratap

1,62631128

edited Mar 25 at 5:48

asked Jan 3 at 13:34

ArunPratap

1,62631128

edited Mar 25 at 5:48

asked Jan 3 at 13:34

ArunPratap

1,62631128

asked Jan 3 at 13:34

ArunPratap

1,62631128

asked Jan 3 at 13:34

ArunPratap

1,62631128

add a comment |

1 Answer
1

active

oldest

votes

Use a Where clause with x => !SelectedId.Contains(x.UserId) as the predicate.

objdb.Users.Where(x => !SelectedId.Contains(x.UserId))

           .Select(x=> x.UserId)

           .Take(6)

           .ToList();

reads as "retrieve the first 6 UserId's from Users where the UserId is not contained in the SelectedId's and collect to a list".

If you want the last 6 based on some criteria then use OrderByDescending:

objdb.Users.Where(x => !SelectedId.Contains(x.UserId))

           .OrderByDescending(x => x.[property])

           .Select(x => x.UserId)

           .Take(6)

           .ToList();

edited Jan 3 at 13:49

answered Jan 3 at 13:37

Aomine

42.7k74678

2

Also, last should be last based on a criteria, so use an .OrderBy(x => x.[property]) or .OrderByDescending(x => x.[property])

– Rafalon
Jan 3 at 13:39

1

you saved my day sir it's working as per needed

– ArunPratap
Jan 3 at 13:49

add a comment |

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
});

}
});

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54023352%2fhow-to-remove-selected-data-that-found-on-another-list-and-take-last-6-id-throug%23new-answer', 'question_page');
}
);

Post as a guest

Name

Required, but never shown

1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

Use a Where clause with x => !SelectedId.Contains(x.UserId) as the predicate.

objdb.Users.Where(x => !SelectedId.Contains(x.UserId))

           .Select(x=> x.UserId)

           .Take(6)

           .ToList();

reads as "retrieve the first 6 UserId's from Users where the UserId is not contained in the SelectedId's and collect to a list".

If you want the last 6 based on some criteria then use OrderByDescending:

objdb.Users.Where(x => !SelectedId.Contains(x.UserId))

           .OrderByDescending(x => x.[property])

           .Select(x => x.UserId)

           .Take(6)

           .ToList();

edited Jan 3 at 13:49

answered Jan 3 at 13:37

Aomine

42.7k74678

2

Also, last should be last based on a criteria, so use an .OrderBy(x => x.[property]) or .OrderByDescending(x => x.[property])

– Rafalon
Jan 3 at 13:39

1

you saved my day sir it's working as per needed

– ArunPratap
Jan 3 at 13:49

add a comment |

Use a Where clause with x => !SelectedId.Contains(x.UserId) as the predicate.

objdb.Users.Where(x => !SelectedId.Contains(x.UserId))

           .Select(x=> x.UserId)

           .Take(6)

           .ToList();

reads as "retrieve the first 6 UserId's from Users where the UserId is not contained in the SelectedId's and collect to a list".

If you want the last 6 based on some criteria then use OrderByDescending:

objdb.Users.Where(x => !SelectedId.Contains(x.UserId))

           .OrderByDescending(x => x.[property])

           .Select(x => x.UserId)

           .Take(6)

           .ToList();

edited Jan 3 at 13:49

answered Jan 3 at 13:37

Aomine

42.7k74678

2

Also, last should be last based on a criteria, so use an .OrderBy(x => x.[property]) or .OrderByDescending(x => x.[property])

– Rafalon
Jan 3 at 13:39

1

you saved my day sir it's working as per needed

– ArunPratap
Jan 3 at 13:49

add a comment |

Use a Where clause with x => !SelectedId.Contains(x.UserId) as the predicate.

objdb.Users.Where(x => !SelectedId.Contains(x.UserId))

           .Select(x=> x.UserId)

           .Take(6)

           .ToList();

reads as "retrieve the first 6 UserId's from Users where the UserId is not contained in the SelectedId's and collect to a list".

If you want the last 6 based on some criteria then use OrderByDescending:

objdb.Users.Where(x => !SelectedId.Contains(x.UserId))

           .OrderByDescending(x => x.[property])

           .Select(x => x.UserId)

           .Take(6)

           .ToList();

edited Jan 3 at 13:49

answered Jan 3 at 13:37

Aomine

42.7k74678

Use a Where clause with x => !SelectedId.Contains(x.UserId) as the predicate.

objdb.Users.Where(x => !SelectedId.Contains(x.UserId))

           .Select(x=> x.UserId)

           .Take(6)

           .ToList();

reads as "retrieve the first 6 UserId's from Users where the UserId is not contained in the SelectedId's and collect to a list".

If you want the last 6 based on some criteria then use OrderByDescending:

objdb.Users.Where(x => !SelectedId.Contains(x.UserId))

           .OrderByDescending(x => x.[property])

           .Select(x => x.UserId)

           .Take(6)

           .ToList();

edited Jan 3 at 13:49

answered Jan 3 at 13:37

Aomine

42.7k74678

edited Jan 3 at 13:49

answered Jan 3 at 13:37

Aomine

42.7k74678

answered Jan 3 at 13:37

Aomine

42.7k74678

answered Jan 3 at 13:37

Aomine

42.7k74678

2

Also, last should be last based on a criteria, so use an .OrderBy(x => x.[property]) or .OrderByDescending(x => x.[property])

– Rafalon
Jan 3 at 13:39

1

you saved my day sir it's working as per needed

– ArunPratap
Jan 3 at 13:49

add a comment |

2

Also, last should be last based on a criteria, so use an .OrderBy(x => x.[property]) or .OrderByDescending(x => x.[property])

– Rafalon
Jan 3 at 13:39

1

you saved my day sir it's working as per needed

– ArunPratap
Jan 3 at 13:49

Also, last should be last based on a criteria, so use an .OrderBy(x => x.[property]) or .OrderByDescending(x => x.[property])

– Rafalon
Jan 3 at 13:39

you saved my day sir it's working as per needed

– ArunPratap
Jan 3 at 13:49

add a comment |

draft saved

draft discarded

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.

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Name

Required, but never shown

Name

Required, but never shown

This page is only for reference, If you need detailed information, please check here

Search This Blog

Ufyukyu