Recent questions tagged C#

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c# - richTextBox.DrawToBitmap Does Not Draw Containing Text?

If I have a richTextBox and run DrawToBitmap on it, it doesn't draw any of the text inside of the richTextBox. ... there any way to fix this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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440 views

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c# - Async wait block Main UI

I am using the new async await features to upgrade from backgroundworker in C#. In the following code I am trying to ... UI. What Am I missing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - SQL Server: "CREATE ASSEMBLY for assembly 'Test' failed because assembly 'Test' is malformed or not a pure .NET assembly."

I get this error when I attempt to load a mixed mode C++/CLI assembly into SQL Server 2012: CREATE ... . Unverifiable PE Header/native stub. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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275 views

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c# - Navigation Property not loading when only the ID of the related object is populated

I am trying to establish a many-to-one relationship. The entity that represents the many has a navigation ... Project).Single; return rfi } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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380 views

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c# - Why InvalidCastException when awaiting Task-returning method?

(The real title of the question should be "Why do I get a 'Unable to cast object of type 'System.Runtime. ... ...it works flawlessly. Why? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to get numeric position of an enum in its definition list?

I need to get the numeric position of an enum in its definition. Consider the following enum - it is used for bit ... a better way to do this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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482 views

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c# - How to use Task<T> raising an event and waiting for event to be finished

I have the following scenario: Client who is requesting a webservice to start public bool Start(MyProject project, string ... to explain to me? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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316 views

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c# - Reading XML data from ASMX webservice for Jquery autocomplete

Me and ASMX web services do not get on. We argue. She brings up arguments we had in the past. It's a pain. ... this is what I see in Fiddler: See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Strange behaviour of switch case with boolean value

My question is not about how to solve this error(I already solved it) but why is this error with ... strange behaviour with bool variable? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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331 views

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c# - Getting Language for Non-Unicode Programs

Anyone have any idea how to get the value of "Language for Non-Unicode Programs" in Control Panel Regional Settings ... or the main code page. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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289 views

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c# - How to increase performance of the update operation in Mongo?

foreach (var doc in await records.Find(filter).ToListAsync()) { var query = Builders<JobInfoRecord>.Filter.Eq ... of the update operation? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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388 views

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c# - Remove all empty/unnecessary nodes from HTML

What would be the preferred way to remove all empty and unnecessery nodes? For example <p></p> should be ... 't work (stackoverflow exception). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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716 views

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c# - BackgroundWorker Return A Value?

The following code adds the numbers from 1 to 100 and returns the sum. What I'm trying to do is run the ... more than a minute to complete. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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356 views

1 answer

c# 4.0 - C# 4.0 unlock image after creating BitmapImage

I am creating an BitmapImage from an existing image using: BitmapImage bmp = new BitmapImage(); bmp.BeginInit(); bmp. ... so it can be removed? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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333 views

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c# - Why is using AsParallel() slower than foreach in this case?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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493 views

1 answer

c# - Taking screenshot of a partially hidden window in a programmatic way

Is it possible to get a screenshot of a window that is not on the top, i.e. if it is partially hidden by ... , without bringing it to the top? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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352 views

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c# - Application cannot open SQL connection when on IIS

I have a connection string that looks like this: Server=.;Database=mydbname;Trusted_Connection=True; This works ... happening with IIS Express? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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668 views

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c# - finding possible combinations linq

I need to generate all possible combinations between {"a", "b","c"}. For example, an input set say like {"a", "b"," ... ab", "ac", "bc", "abc"}. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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491 views

1 answer

c# - How to bind an Objective-C static library to Xamarin.iOS?

I have read the documentation from Xamarin. And this is my test class in Objective-C: #import "XamarinBundleLib.h" ... how can I fix it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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409 views

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c# - MissingManifestResourceException when running tests after building with MSBuild (.mresource has path in manifest)

I am having a problem with embedded resources for a C# project on a build server using MSBuild on the command line ... ideas how to fix this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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357 views

1 answer

c# - Why am I getting InvalidCastException?

I have following code snippet in c# List<int> list = new List<int>() { 1, 23, 5, 3, 423, 3 }; ... i am executing this I am getting exception. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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625 views

1 answer

c# - SelectMany in Linq and dimensional array?

Why this code compiles : byte[][] my2DArray =new byte [][]{ new byte[] {1, 2}, new byte[] {3, 4}, }; var ... ar.Select(r=>(int)r).Sum(); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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308 views

1 answer

c# - Extracting part of JSON response

I am new in programming. I am currently working on a map function which requires me to get directions between ... help will be much appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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562 views

1 answer

c# - Angular $http error response statusText always undefined

I am trying to return a custom error message to the user to let them know what went wrong if an error ... can't display my error messages. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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546 views

1 answer

c# - How to fix "The source contains no DataRows"?

Here i want to find the Matched Records From Two data tables. the code is public DataTable textfiltering( ... ..pls give your suggistions See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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532 views

1 answer

c# - How to use EntityFramework.BulkInsert?

I'm trying to use EntityFramework.BulkInsert located at http://efbulkinsert.codeplex.com/. It's an extension ... : context.BulkInsert(entities); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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442 views

1 answer

c# - What does Filestream.Read return value mean? How to read data in chunks and process it?

I'm quite new to C# so please bear with me. I'm reading (using FileStream) data (fixed size) to small ... Thank you for your time and answers. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

625 views

1 answer

c# - How to create a progress bar with rounded corners in iOS using Xamarin.Forms

I used inputs from this SO Question to create a custom progress-bar with rounded corners for the Android platform using ... in the iOS as well? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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