Recent questions tagged .NET

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.net - Why Compiled RegEx performance is slower than Intrepreted RegEx?

I run into this article: Performance: Compiled vs. Interpreted Regular Expressions, I modified the sample code to compile ... msTaken); } } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - Read Introduction in C# - how to protect against it?

An article in MSDN Magazine discusses the notion of Read Introduction and gives a code sample which can be broken ... doesn't include it. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - What is the difference between log4net.ThreadContext and log4net.LogicalThreadContext?

UPDATED on 11/18/2014 - While browsing the log4net source repository, I found that the implementation of ... Storage? Thanks in advance! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - Why is the max size of byte[] 2 GB - 57 B?

On my 64-bit machine, this C# code works: new byte[2L * 1024 * 1024 * 1024 - 57] but this one ... around the limit using custom BigArray<T>. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - Why does generated IL code start with a Nop?

I was trawling through some of the IL of one of my assemblies (via ILDasm) and I noticed that all of my ... Does anyone know why that is? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - How to call DynamicObject.TryGetMember directly?

I'm implementing a general purpose function to extract a value from an arbitrary provided dynamic object, but ... create my own implementation? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - C# Unsafe/Fixed Code

Can someone give an example of a good time to actually use "unsafe" and "fixed" in C# code? I've ... messing with something above his head? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - C#: Function in Function possible?

Is it possible to declare a method within another method in C#? For example like that: void OuterMethod() { int ... int PlitschPlatsch = 2; } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - Unable to return Tuple from a method using Visual Studio 2017 and C# 7.0

I've installed Visual Studio 2017 Community that was released a week ago, and I started exploring the new features ... that for every project ?! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - How to reference a generic type in the DataType attribute of a HierarchicalDataTemplate?

I have a class of MyClass<MyObject> and want to set it as the DataType for a HierarchicalDataTemplate. What is the syntax ... ="{X:Type ..... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - SharePoint development environment setup

i need to setup a development environment for writing Share Point Web Parts. What do I exactly need? My ... for running Share Point Services? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - Improve data access layer select method Pattern

Lately I find myself writing data access layer select methods where the code all takes this general form: ... an SqlParameter collection in)? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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379 views

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.net - Prevent WebBrowser control from stealing focus?

Is there a way to stop the WebBrowser control from causing its parent form to bring itself to the front? ... to any better suggestions, though. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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299 views

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.net - How to post a file via HTTP post in vb.net

Having a problem with sending a file via HTTP post in vb.net. I am trying to mimic the following HTML so the ... </form> Hope someone can help! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - Managing wireless network connection in C#

We've got a WinForms app written in C# that has a very custom GUI. The user is not allowed to run any ... a direction on. Many thanks! Matt See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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236 views

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.net - Increase file upload size limit in iis6

Is there any other place besides the metabase.xml file where the file upload size can be modified? I am currently ... set on there end? Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - How to capture Shell command output in C#?

Summary: query registry on remote machine capture output to use in application needs to be in csharp so far all methods ... (output + " "); } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - What is the "Weak Event" pattern used in WPF applications?

The WindowsBase DLL defines the IWeakEventListener event with summary: Provides event listening support for classes ... non-WPF applications? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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261 views

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.net - Get external IP address over remoting in C#

I need to find out the external IP of the computer a C# application is running on. In the application I have a ... the IP back to the client. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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310 views

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.net - "Error Creating Window Handle"

We're working on a very large .NET WinForms composite application - not CAB, but a similar home grown ... handle-friendly winforms apps? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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304 views

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.net - Does System.Activator.CreateInstance(T) have performance issues big enough to discourage us from using it casually?

Does System.Activator.CreateInstance(T) method have performance issues (since I'm suspecting it uses reflection) big ... from using it casually? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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545 views

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.net - Windows Service System.Timers.Timer not firing

I have a Windows service written in C# which is meant to perform a task every few minutes. I'm using a ... the time OnStart() is finished. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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321 views

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.net - Could not load file or assembly '***.dll' or one of its dependencies

I have this dll that I created a long time ago and use to connect to the db of a specific software that I ... is no errors in the event viewer. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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280 views

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.net - How to modify key in a dictionary in C#

How can I change the value of a number of keys in a dictionary. I have the following dictionary : ... greater than a certain amount. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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462 views

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.net - VB.NET equivalent of C# "As"

What is the equivalent in VB.NET of the C# As keyword, as in the following? var x = y as String; if (x == null) ... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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252 views

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.net - ASP.Net MVC Redirect To A Different View

Is it possible to redirect to a different view from a controller? For example, all my controllers inherit from a ... met. Hope that makes sense. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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612 views

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.net - C# check if a COM (Serial) port is already open

Is there an easy way of programmatically checking if a serial COM port is already open/being used? Normally I would ... COM port or some such. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - Entity Framework 6 set connection string runtime

We are in a mixed environment where our application is using both ADO.NET and Entity Framework. Since both are ... then that would be good. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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