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How to find an error in Linq using PropertyValidationErrors when key is not found in results
The Next CEO of Stack OverflowHow would you count occurrences of a string (actually a char) within a string?Convert Linq Query Result to DictionaryWhen to use .First and when to use .FirstOrDefault with LINQ?What does LINQ return when the results are emptyMultiple Order By with LINQThe request was aborted: Could not create SSL/TLS secure channelHow and when to use ‘async’ and ‘await’format date in linq query resultWhy not inherit from List<T>?C#: Cannot convert LINQ result to a list of objects. What's wrong?
I have the following code which will find an error if results contains the key. It will then select the count of errors:
var foundError = results
.Where(e => e.PropertyValidationErrors.Keys.Contains(id))
.Select(e => e.PropertyValidationErrors[id]).ToList();
I want to instead find an error if the id is not found in the results.
I'm not sure of the syntax. I want to do something like this:
// This is not correct, but similar to what I want to do
var foundError = results
.WhereNot(e => e.PropertyValidationErrors.Keys.Contains(id))
.Select(e => e.PropertyValidationErrors[id]).ToList();
Please advise on the syntax. Thanks
c# linq
asked Mar 21 at 19:59
RichRich
1,70071831
add a comment |
I have the following code which will find an error if results contains the key. It will then select the count of errors:
var foundError = results
.Where(e => e.PropertyValidationErrors.Keys.Contains(id))
.Select(e => e.PropertyValidationErrors[id]).ToList();
I want to instead find an error if the id is not found in the results.
I'm not sure of the syntax. I want to do something like this:
// This is not correct, but similar to what I want to do
var foundError = results
.WhereNot(e => e.PropertyValidationErrors.Keys.Contains(id))
.Select(e => e.PropertyValidationErrors[id]).ToList();
Please advise on the syntax. Thanks
c# linq
asked Mar 21 at 19:59
RichRich
1,70071831
add a comment |
I have the following code which will find an error if results contains the key. It will then select the count of errors:
var foundError = results
.Where(e => e.PropertyValidationErrors.Keys.Contains(id))
.Select(e => e.PropertyValidationErrors[id]).ToList();
I want to instead find an error if the id is not found in the results.
I'm not sure of the syntax. I want to do something like this:
// This is not correct, but similar to what I want to do
var foundError = results
.WhereNot(e => e.PropertyValidationErrors.Keys.Contains(id))
.Select(e => e.PropertyValidationErrors[id]).ToList();
Please advise on the syntax. Thanks
c# linq
asked Mar 21 at 19:59
RichRich
1,70071831
I have the following code which will find an error if results contains the key. It will then select the count of errors:
var foundError = results
.Where(e => e.PropertyValidationErrors.Keys.Contains(id))
.Select(e => e.PropertyValidationErrors[id]).ToList();
I want to instead find an error if the id is not found in the results.
I'm not sure of the syntax. I want to do something like this:
// This is not correct, but similar to what I want to do
var foundError = results
.WhereNot(e => e.PropertyValidationErrors.Keys.Contains(id))
.Select(e => e.PropertyValidationErrors[id]).ToList();
Please advise on the syntax. Thanks
c# linq
c# linq
asked Mar 21 at 19:59
RichRich
1,70071831
asked Mar 21 at 19:59
RichRich
1,70071831
asked Mar 21 at 19:59
RichRich
1,70071831
asked Mar 21 at 19:59
RichRich
1,70071831
asked Mar 21 at 19:59
RichRich
1,70071831
1,70071831
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
I think you can just do
var foundError = results
.Where(e => !e.PropertyValidationErrors.Keys.Contains(id))
.Select(e => e.PropertyValidationErrors).ToList();
and it will select all PropertyValidationErrors for objects that don't contain a propertyValidationError with the selected key.
answered Mar 21 at 20:05
NzallNzall
2,98531950
I also could do this, but the Select did not work on it: var foundError = !results.Any(e => e.PropertyValidationErrors.Keys.Contains(id));
– Rich
Mar 21 at 20:16
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I think you can just do
var foundError = results
.Where(e => !e.PropertyValidationErrors.Keys.Contains(id))
.Select(e => e.PropertyValidationErrors).ToList();
and it will select all PropertyValidationErrors for objects that don't contain a propertyValidationError with the selected key.
answered Mar 21 at 20:05
NzallNzall
2,98531950
I also could do this, but the Select did not work on it: var foundError = !results.Any(e => e.PropertyValidationErrors.Keys.Contains(id));
– Rich
Mar 21 at 20:16
add a comment |
I think you can just do
var foundError = results
.Where(e => !e.PropertyValidationErrors.Keys.Contains(id))
.Select(e => e.PropertyValidationErrors).ToList();
and it will select all PropertyValidationErrors for objects that don't contain a propertyValidationError with the selected key.
answered Mar 21 at 20:05
NzallNzall
2,98531950
I also could do this, but the Select did not work on it: var foundError = !results.Any(e => e.PropertyValidationErrors.Keys.Contains(id));
– Rich
Mar 21 at 20:16
add a comment |
I think you can just do
var foundError = results
.Where(e => !e.PropertyValidationErrors.Keys.Contains(id))
.Select(e => e.PropertyValidationErrors).ToList();
and it will select all PropertyValidationErrors for objects that don't contain a propertyValidationError with the selected key.
answered Mar 21 at 20:05
NzallNzall
2,98531950
I think you can just do
var foundError = results
.Where(e => !e.PropertyValidationErrors.Keys.Contains(id))
.Select(e => e.PropertyValidationErrors).ToList();
and it will select all PropertyValidationErrors for objects that don't contain a propertyValidationError with the selected key.
answered Mar 21 at 20:05
NzallNzall
2,98531950
answered Mar 21 at 20:05
NzallNzall
2,98531950
answered Mar 21 at 20:05
NzallNzall
2,98531950
answered Mar 21 at 20:05
NzallNzall
2,98531950
2,98531950
I also could do this, but the Select did not work on it: var foundError = !results.Any(e => e.PropertyValidationErrors.Keys.Contains(id));
– Rich
Mar 21 at 20:16
add a comment |
I also could do this, but the Select did not work on it: var foundError = !results.Any(e => e.PropertyValidationErrors.Keys.Contains(id));
– Rich
Mar 21 at 20:16
I also could do this, but the Select did not work on it: var foundError = !results.Any(e => e.PropertyValidationErrors.Keys.Contains(id));
– Rich
Mar 21 at 20:16
I also could do this, but the Select did not work on it: var foundError = !results.Any(e => e.PropertyValidationErrors.Keys.Contains(id));
– Rich
Mar 21 at 20:16
add a comment |
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