Recent questions tagged .net

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.net - Is it safe to call an RCW from a finalizer?

I have a managed object that calls a COM server to allocate some memory. The managed object must call the ... underlying RCW cannot be used. 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 - Create guitar chords editor in WPF (from RichTextBox?)

Main purpose of application I'm working on in WPF is to allow editing and consequently printing of songs ... using RichTextBox with adorner. 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 - JSON serialization of array with polymorphic objects

Is it possible with .NET standard JavascriptSerializer/JsonDataContractSerializer or external parsers, to serialize ... attribute. 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 - XmlSerializer startup HUGE performance loss on 64bit systems

I am experiencing a really HUGE performance loss while calling a simple XmlSerializer.Deserizlize() on a class with lots ... to turn them off) 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 3.5 - Tool that can combine many XSD files into one?

I need to create XML serializer classes for approximately 65 XSD files, for which I am using Microsoft's XSD.EXE to ... a tool to do this... See Question&Answers more detail:os...

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

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496 views

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.net - Change selected and unfocused Listbox style to not be grayed out

I have a really simple WPF ListBox with SelectionMode set to Multiple. <ListBox SelectionMode="Multiple" / ... ListView Inactive Selection Color 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 - Detecting what the target object is when NullReferenceException is thrown

I'm sure we all have received the wonderfully vague "Object reference not set to instance of an Object" ... Thanks for everyone's suggestions. 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 Find vs. Where

Is there a significant difference between .Find(id) and .Where(x = >x.Id == id) that should compel me to use ... 't need to do that extra work. 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 do I parse and convert a DateTime to the RFC 3339 date-time format?

How do I convert a DateTime structure to its equivalent RFC 3339 formatted string representation and/or parse ... the Atom Syndication Format. 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 - Are nested Try/Catch blocks a bad idea?

Let's say we have a structure like so: Try ' Outer try code, that can fail with more generic conditions, ' that ... this bad code? If so, why? See Question&Answers more detail:os...

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

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556 views

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.net - Timeout pattern on task-based asynchronous method in C#

As far as I know, there're two possible patterns to implement a timeout to task-based asynchronous methods: Built- ... the no built-in timeout? 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 - Windows Credential Provider with C#

Has anyone successfully created a custom Windows Credential Provider in C#? The samples that are in the Windows SDK ... who has confirmed 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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354 views

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.net - WCF sessions with a wsHttpBinding and without windows security

I need to create a WCF service that is hosted in IIS, uses http transport and hold state in the server's ... plan of using asp.net sessions? See Question&Answers more detail:os...

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

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223 views

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.net - How to return a page of results from SQL?

Many applications have grids that display data from a database table one page at a time. Many of them also ... Does LINQ simplify the solution? See Question&Answers more detail:os...

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

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218 views

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.net - How to load a separate Application Settings file dynamically and merge with current settings?

There are questions pertaining to reading settings from a separate config file and others similar to it, but ... loaded on application startup? See Question&Answers more detail:os...

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

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298 views

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.net - How to convert XML/JSON file to C# class?

I have XML file like this: <?xml version="1.0"?> <catalog> <book id="1" date="2012-02-01"> <title ... JSON format? Is the XSD the only solution? See Question&Answers more detail:os...

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

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218 views

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.net - C# tutorial to write gadgets

How can I write gadgets for the Windows 7 desktop using C# and Visual Studio 2008? I'm looking for tutorials and resources on that topic. See Question&Answers more detail:os...

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

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233 views

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.net - NuGet issues with packages.config, project references and the solutionwide packages folder

We are starting to use NuGet and we are having some issues: First some NuGet facts: (Just to make sure ... solutions to the problems listed. See Question&Answers more detail:os...

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

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363 views

1 answer

.net - Using a custom WPF control in WinForms

I'm going to have to build a custom control for a WinForms application. But in the near future that same ... 3.0 as their target framework. 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 - How to implement Balloon message in a WPF application

We would like to use balloon messages as described in the UX Guide from Microsoft. I found some samples which uses ... I should be aware of? See Question&Answers more detail:os...

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

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309 views

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.net - Shadows vs Overloads in VB.NET

When we have new in C#, that personally I see only as a workaround to override a property that does not ... which case prefer one to another? See Question&Answers more detail:os...

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

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607 views

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.net - Finding information about all serial devices connected through USB in C#

My project requires detection of a specific device when it is connected to USB. The only way I can identify ... a solution to this problem? See Question&Answers more detail:os...

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

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264 views

1 answer

.net dynamically refresh app.config

How do I dynamically reload the app.config in a .net Windows application? I need to turn logging on and off ... in the bindebug folder. Doh! See Question&Answers more detail:os...

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

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218 views

1 answer

.net - LINQ to SQL query using "NOT IN"

Can LINQ to SQL query using NOT IN? e.g., SELECT au_lname, state FROM authors WHERE state NOT IN ('CA', 'IN', 'MD') 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 - How does ItemContainerGenerator.ContainerFromItem work with a grouped list?

I have a ListBox which until recently was displaying a flat list of items. I was able to use myList.ItemContainerGenerator. ... ; i.Focus(); } } See Question&Answers more detail:os...

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

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330 views

1 answer

.net - Unit testing HTTP requests in c#

I'm writing some code that calls a web service, reads back the response and does something with it. My ... System.Net.Http.HttpClient libraries. See Question&Answers more detail:os...

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

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365 views

1 answer

.net - What is CLR hosting?

What is CLR hosting? What is the use case for that? See Question&Answers more detail:os...

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

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637 views

1 answer

.net - How do I unsubscribe all handlers from an event for a particular class in C#?

Basic premise: I have a Room which publishes an event when an Avatar "enters" to all Avatars within the Room. When ... event has occurred"); } } See Question&Answers more detail:os...

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

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