大约有 13,065 项符合查询结果（耗时：0.0472秒） [XML]
How to check whether an object has certain method/property?
Using dynamic pattern perhaps? You can call any method/property using the dynamic keyword, right? How to check whether the method exist before calling myDynamicObject.DoStuff(), for example?
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Is 161803398 A 'Special' Number? Inside of Math.Random()
I suspect the answer is 'Because of Math', but I was hoping someone could give a little more insight at a basic level...
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Linq: What is the difference between Select and Where
The Select and Where methods are available in Linq. What should every developer know about these two methods? For example: when to use one over the other, any advantages of using one over the other, etc.
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How to add extra namespaces to Razor pages instead of @using declaration?
Is there some sort of magic I need to use to get the namespaces in the pages/namespaces element in the webconfig?
5 Answe...
How do I reverse a C++ vector?
Is there a built-in vector function in C++ to reverse a vector in place?
6 Answers
6
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Linq to Sql: Multiple left outer joins
I'm having some trouble figuring out how to use more than one left outer join using LINQ to SQL. I understand how to use one left outer join. I'm using VB.NET. Below is my SQL syntax.
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returning a Void object
What is the correct way to return a Void type, when it isn't a primitive? Eg. I currently use null as below.
5 Answers
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How to calculate time in hours between two dates in iOS
How can I calculate the time elapsed in hours between two times (possibly occurring on different days) in iOS?
5 Answers
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Write bytes to file
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If I understand you correctly, this should do the trick. You'll need add using System.IO at the top of your file if you don't already have it.
public bool ByteArrayToFile(string fileName, byte[] byteArray)
{
try
{
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How to make graphics with transparent background in R using ggplot2?
I need to output ggplot2 graphics from R to PNG files with transparent background. Everything is ok with basic R graphics, but no transparency with ggplot2:
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