这是因为.ToLower()并且.Contains()是字符串类中的函数,并且不能由linq提供程序转换为SQL. 所有查询(除非明确指定)都将遵循数据库排序规则,如果是CI,则为Case Insensitive并且您不需要.ToLower().至于.Contains()你需要使用实体功能Like. users.Where(u => EF.Functions.Like(u.FirstName, "%" + query + ...
public class CaseInsensitiveComparer : IComparer<string> { public int Compare(string x, string y) { return string.Compare(x, y, true); } } public void Linq31() { string[] words = { "aPPLE", "AbAcUs", "bRaNcH", "BlUeBeRrY", "ClOvEr", "cHeRry"}; var sortedWords = words.OrderBy...
Local sequence cannot be used in LINQ to SQL implementations of query operators except the Contains operator. Loop through each item in a dataset Looping through DataSet in C# Looping through SqlDataReader results Make linq case insensitive Many to many relationship with ASP.NET Identity Table and...
The GetInterface method searches for an interface only by name (using a case-sensitive or case-insensitive search), and the GetInterfaces method returns an array of all the interfaces implemented on a particular type. To execute a more focused search—for example, searching for interfaces that d...
For example, you might have a class named Person that contains a property named FavoriteCities that returns an array of string values. In that case, you set the ContextTypeName property to Person and set the TableName property to FavoriteCities....
public class CaseInsensitiveComparer : IComparer<string> { public int Compare(string x, string y) { return string.Compare(x, y, true); } } public void Linq31() { string[] words = { "aPPLE", "AbAcUs", "bRaNcH", "BlUeBeRrY", "ClOvEr", "cHeRry"}; ...
Seems like this might be a warning instead, because it's probably a limitation to prevent performance hits. I don't really need to do a ToLower on any of these, if I have a way to do case-insensitive searches on the text. If anyone knows how this could be done, please let me kno...
The comparison is performed by looking for a case-sensitive match first. If this match is not found, a subsequent search occurs for a case-insensitive match. The query must return all the tracked fields and properties of the object (except those that are loaded on a deferred basis) when al...
CASE_INSENSITIVE_ORDER).reversed()); sortedWords.forEach(System.out::println); } Output ClOvEr cHeRry bRaNcH BlUeBeRrY aPPLE AbAcUs linq35: ThenBy - Simple This sample uses nested ordering, first by length of their name, and then alphabetically by the name itself. //c# static void Linq35...
public class CaseInsensitiveComparer : IComparer<string> { public int Compare(string x, string y) { return string.Compare(x, y, StringComparison.OrdinalIgnoreCase); } } Clojure utils added (defn case-insensitive-compare [s1 s2] (compare (.toLowerCase s1) (.toLowerCase s2))) (defn order-...