System.linq.dynamic bug issues should be fixed.

Table of Contents

Sometimes your computer may give you a “system.linq.dynamic error” error message. There can be several reasons for this error.

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productList.DataSource is

query.=> select(p newp.description, p.price, p.image );

productList.DataBind();

clearSearch();

}

In the morning I use System.Linq.Dynamic (Install-Package System.Linq.And dynamic). I’m trying to use the IndexOf overload of a StringComparison. However, this is equivalent to trying to apply the owner’s StringComparison to the Person object. Am I correct in the request?

Try

 IEnumerable dynamicLinqItems = people.Where("(FirstName.IndexOf(@0, StringComparison.OrdinalIgnoreCase) >= 0)", "T");catch(except exception) Console.WriteLine(Exception);

The StringComparison property or field does not exist only on the Person type.

Public class person    public string FirstName get; together; get the last name from the public channel; together; general date/time of birthday; together;    social age            receive                    DateTime Now = DateTime.Today;            int age = now.Year - birthday.year;            in cases where (now < Birthday.AddYears(age))                            Age--;                        return age;

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When using GroupBy on a collection (de means "Data" in the example below), I get a learning error saying "Target part is not an ExpandoObject" when I try to convert it to a list. What exactly does the error mean? And how can I propagate this error?

Here is a structure call that results in an execution similar to the error -

//data object is a list of the mentioned class 'data'.public class data        open chain of receiving currency; together;        Government receives PreTaxCost; together;//Variable values:var groupingKeySelector = "new(it.Currency as Currency)"var selector = "new (Sum(Convert.ToInt32(it.PreTaxCost)) as PreTaxCost, it.Key.Currency)"//Call that throws an exception: data.AsQueryable().GroupBy(groupingKeySelector,"it").Select(selector).Cast().ToDynamicList()//Call variant that throws the same exception for this data.AsQueryable().GroupBy("new (it.Currency as Currency )", "it").First()

system.linq.dynamic error

data.AsQueryable().GroupBy(groupingKeySelector,"it").Select(selector).Cast().ToDynamicList()' exception 'System type.InvalidOperationException' thrown Data: System.Collections.ListDictionaryInternal HResult :- 2146233079 HelpLink: null InnerException: Message: null "Target is not an ExpandoObject") in C:UsersJonathanDocumentsGitHubSystem.Linq.Dynamic.CoresrcSystem.Linq.Dynamic.Core Dynamic DynamicIndexer.cs:line 30rn lambda_method(closing here in , Object )rn in System.Linq.Lookup2.Source, create[tsource](ienumerable1 Func2 keySelector, Func2 elementSelector, IEqualityComparer1 Compare) rn in System.Linq.GroupedEnumerable3.GetEnumerator()rn in System. Linq.Enumerable.WhereSelectEnumerableIterator2.MoveNext()rn in System.Collections.Generic.List1..ctor(IEnumerable1 collection)rn in System.Linq.Enumerable.ToList[T Source](IEnumerable1 source)r n in System.Linq.Dynamic.Core.DynamicEnumerableExtensions.ToDynamicList(IEnumerable source) in C:UsersJonathanDocumentsGitHubSystem.Linq.Dynamic.CoresrcSystem.Linq.Dynamic .CoreDynamicEnumerableExtensions. cs:line 87" TargetSite: System.Object DynamicIndex(System.Object, System.String)