nullable

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ternary condition and nullable types [duplicate]

This question already has answers here: Closed 11 years ago. 开发者_Python百科Possible Duplicate: Why is this code invalid in C#?[详细]

2023-03-23 18:55 分类：问答
DateTime? Cannot assign a value

I need to have a property that is a nullable date as the datestamp is used for when a process is completed.[详细]

2023-03-23 17:28 分类：问答
Django: Null field with managed=False

When a model is not managed by Django, does it matter what the value of null on a 开发者_运维技巧field is?managed=False no database table creation or deletion operations will be performed for this mod[详细]

2023-03-22 00:41 分类：问答
Is it possible to assign a value to a nullable using the conditional operator?

I know I can do this: Int32 tempInt; Int32? exitNum; if (Int32.TryParse(fields[13], out tempInt)) exitNum = tempInt;[详细]

2023-03-20 19:43 分类：问答
Lambda expression with <bool> and System.Nullable<bool>

This can\'t compile: void Foo() { using (var db = new BarDataContext(ConnectionString)) { // baz is type \'bool\'[详细]

2023-03-18 00:44 分类：问答
optional/null-able OUT parameter in C#

I have a method that has several overrides. In one of the more expanded overrides, I want 开发者_如何学Goto return an OUT parameter but not in my simpler overrides. For example:[详细]

2023-03-17 00:30 分类：问答
Return a generic nullable Element

I\'m trying to make a method that returns the highest value of an Array with generic elements that can开发者_如何转开发 be Nullable.[详细]

2023-03-15 22:29 分类：问答
Why am I having an issue with making a nullable integer a property?

I made a modification to an existing piece of .NET 4 code to make a new property which consisted of a nullable integer. It runs in a Windows Service.[详细]

2023-03-15 05:25 分类：问答
Rewrite HasValue to the ?? Operators

Is it safe to rewrite the following code: bool b = foo.bar.HasValue ? foo.bar.Value : false; to bool b = foo.bar.Value ?? false;开发者_运维知识库[详细]

2023-03-14 23:13 分类：问答
How to check if a generic type parameter is nullable? [duplicate]

This question already has answers here: Closed 11 years ago. Possible Duplicate: Determine if a generic param is a Nullable type[详细]

2023-03-14 16:15 分类：问答