nullable
Implementing operators between nullables and base types - should I?
This may well be well-known and discussed, but to my surprise I discovered today that you can give your own implementation of operators between nullables and their base types.[详细]
2023-04-05 04:29 分类：问答Why cant I declare a generic list as nullable?
Im trying to use the following code: private Nullable<List<IpAddressRange>> ipAddressRangeToBind;[详细]
2023-04-04 16:33 分类：问答VB.NET Nullables
I\'m experiencing unpredicted effects with nullables in VB.net. The object in question has a property defined:[详细]
2023-04-04 15:49 分类：问答Type Inference failed in a call to 'join' on nullable and non-nullable int
开发者_JAVA技巧In my Linq, I am trying to make an inner join to a nullable field. Employee and Department have a relation, Department may have an EmployeeID or may have a null. So what would be my joi[详细]
2023-04-03 16:43 分类：问答Is it possible to restrict a generic parameter to just accept nullable types? [duplicate]
This question already has answers here: Closed 11 years ago. Possible Duplicate: Nullable type as a generic parameter possible?[详细]
2023-04-02 22:03 分类：问答Detect nullable type
Is it possible to detect a Nullable type (cast into an object) when it is null? Since Nullable<T> is really a struct I think it should be possible.[详细]
2023-04-01 23:58 分类：问答XML deserialize null elements?
trying to deserialize a Xml string, but always get problem for elements like these: <Taxable />[详细]
2023-04-01 12:54 分类：问答Grouping NHibernate query results by nullable integer
I\'m using NHibernate to query a table that has tuples in the format: (String, Int?), where the integers can be null. So, I want to group my results by number and then sort alphabetically. I can easil[详细]
2023-04-01 10:08 分类：问答Apache derby Double datatype - and trying to default it to "null"
Well, I\'m a bit puzzeled here, yet it seems to be a really dumb question. I\'m trying to create a table that has a double column that is null by default. What i get is a table with a double column t[详细]
2023-03-31 18:30 分类：问答How to avoid ambiguous references with overridden methods with default parameters involving nullable types?
I have some methods like the following: static public int GetInt(int _default = 0) { // do work, return _default if error[详细]
2023-03-30 15:22 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......