For example, SQL Server does case-insensitive string comparison by default, whereas SQLite is case-sensitive. This can make your tests pass against SQLite where they would fail against SQL Server (or vice versa). Some queries which work on SQL Server simply aren't supported on SQLite, because...
ICollection<string>represents a mutable reference type. This means that aValueComparer<T>is needed so that EF Core can track and detect changes correctly. SeeValue Comparersfor more information. Collections of value objects Combining the previous two examples together we can create a collection of ...
I'm used to all IDbCommand implementations have case insensitive parameter names. This is true for the SqlClient namespace and the System.Data.SQLite package. This feature is very useful, but when I started using the Microsoft.Data.Sqlit...
ICollection<string>represents a mutable reference type. This means that aValueComparer<T>is needed so that EF Core can track and detect changes correctly. SeeValue Comparersfor more information. Collections of value objects Combining the previous two examples together we can create a collection of ...
I usedstring.Equals(string, string) mgolois commentedon May 3, 2018 mgolois on May 3, 2018 Any update on this? takerukoushirou mentioned this Contains() method not case-insensitive on CITEXT columnnpgsql/efcore.pg#384 mgolois commentedon Jul 29, 2018 ...
publicclassCaseInsensitiveComparer:IComparer<string>{publicintCompare(string a,string b){returnstring....
Where(s => s.LastName.ToUpper().Contains(searchString.ToUpper())` The preceding code would ensure that the filter is case-insensitive even if the Where method is called on an IEnumerable or runs on SQLite.When Contains is called on an IEnumerable collection, the .NET Core implementation is...
Foundation框架是以另一个框架CoreFoundation为基础创建的。CoreFoundation框架是用纯C语言写的,你愿意的话也可以使用它,不过本书不予讨论。在介绍名称相似的框架时不要混淆。如果函数或变量名以CF开头,那它们就是CoreFoundation框架中的。其中很多都可以在Foundation框架中找到相对应的,它们之间的转换也非常简单。
Compare(String, Int32, String, Int32, Int32, CultureInfo, CompareOptions) 方法在执行语言或区域性敏感比较时不考虑这些字符。 若要在比较中识别可忽略字符,请为 options 参数提供 Ordinal 或OrdinalIgnoreCase 值。 另请参阅 Equals 适用于 .NET 9 和其他版本 产品版本 .NET Core 2.0, Core 2.1, Core ...
比较器调用 CompareTo(String) 方法,反转比较器的顺序,使字符串排序高到低,而不是低到高。 该数组将再次显示、排序和显示。 必须对数组进行排序才能使用 BinarySearch 方法。 备注 对Sort<T>(T[], IComparer<T>) 和BinarySearch<T>(T[], T, IComparer<T>) 泛型方法的调用与其非泛型方法的调用不同,因为 ...