Recent questions tagged C#

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I am using WPF data-grid. In data-grid user have column-headers and row-headers. When column-headers and ... this problem. Regards, Priyank 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# - Adding an observable sequence after subscription

We are using Rx to monitor activity within our silverlight application so that we can display a message to ... .Subscribe(timeoutAction); } 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# - Rendering sharp lines in WPF

If I render the following: <Grid> <Canvas SnapsToDevicePixels="True"> <Path Fill="#FF000000" SnapsToDevicePixels="True" ... of the white line? 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# - Programmatically limit CPU Usage of a Thread running inside a Service

I'm using VB9 (VS2008). I've created a Windows Service that indexes some folders regularly. Is there a way I ... does not make the system slow. 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# - Passing a string between pages in Windows Phone 8

I need to pass a simple string between two pages in Windows Phone 8. I've been searching around, trying to ... .xaml", Urikind.Relative)); See Question&Answers more detail:os...

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

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296 views

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c# - Why does x++ have higher precedence than ++x?

What's the point of post increment ++ operator having higher precedence than preincrement ++ operator? Thus, is ... to return a wrong result? 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# - Regex for non-alphabets and non-numerals

Please provide a solution to write a regular expression as following in C#.NET: I would require a RegEx for Non- ... the solution for the same. See Question&Answers more detail:os...

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

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348 views

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c# - get the selected text of the editor window..visual studio extension

hi i'm making a extension for visual studio and the specific thing that i need is get the selected text ... that provides me this information. 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 have multiple Views using the same ViewModel in MVVM?

I am new to both WPF and MVVM and a came across an issue when attempting to set the DataContext to the ... with one View for every ViewModel? 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 should the Form.Load event be used compared to its constructor method?

When initializing properties of controls or other values related to a Form I have a tendency to switch back and ... instead of the constructor. See Question&Answers more detail:os...

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

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319 views

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c# - Testing for repeated characters in a string

I'm doing some work with strings, and I have a scenario where I need to determine if a string (usually a ... repeat is pair or triplet etc. See Question&Answers more detail:os...

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

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242 views

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c# - Is there a way to generate WMI code/classes?

How do you generate C# classes for accessing WMI? See Question&Answers more detail:os...

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

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370 views

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c# - Changing connection string at runtime in Enterprise Library

Is there a way to change the connection string of a DataBase object in Enterprise Library at runtime? I've ... config file. Thanks in advance. See Question&Answers more detail:os...

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

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345 views

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c# - TextBox maximum amount of characters (it's not MaxLength)

I'm using a System.Windows.Forms.TextBox. According to the docs, the MaxLength property controls the amount of ... and asked this question. 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# - Cannot access a disposed object?

I have a countdown Timer form - on the first form the user will enter the countdown time - warning times, end ... help would be great. Thanks. See Question&Answers more detail:os...

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

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251 views

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c# - Slice up an image into tiles

Given a loaded Bitmap object. I want to slice up this image into 256x256 tiles and save out each tile as a jpg ... see the wood for the trees. See Question&Answers more detail:os...

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

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298 views

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c# - Multiple Series Charts with WPFtoolkit

Does anyone of you know the way to create multiple series charts with wpftoolkit? In a nutshell what I want ... Any help is deeply 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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324 views

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c# - Spritesheet in Silverlight

Does anyone have an example of using a spritesheet in Silverlight? I'd like to clip the image and, when a button ... for. Thanks for any help. See Question&Answers more detail:os...

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

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963 views

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c# - AES encryption error: The input data is not a complete block?

Here's the encryption method: public static byte[] Encrypt(byte[] plaintext, byte[] key) { using (var aes = ... , I'm just playing around. 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# - Castle Windsor ApiController Factory implementation for ASP.NET Web API

I know it's possible to use DependencyResolver and register Castle Windsor with MVC but due to the ... without using the DependencyResolver? See Question&Answers more detail:os...

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

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300 views

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c# - Updating a reference to a child object in Entity framework 4.1 (CodeFirst)

I'm trying to update an object that I have previously saved with EntityFramework 4.1 (CodeFirst) The class Job ... are for the initial insert! See Question&Answers more detail:os...

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

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334 views

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c# - launch process from Session 0 Isolation

On Windows 8.1 I have a service that starts PowerShell scripts. The service runs as nt authoritysystem in Session ... break out of session 0. See Question&Answers more detail:os...

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

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205 views

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c# - How to serialize ANY object into a string?

I'm running into an issue where my JSON serializer is failing randomly due to the character < showing up from time to ... heck is going on } }) See Question&Answers more detail:os...

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

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312 views

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c# - Binding to Queue<string>. UI never updates

I bound a ListBox to a Queue<string>. When I enqueue/dequeue items, the ListBox does not update. I have helpers for ... ("Queue"); return tmp; } 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# - Is it possible to override the default behavior of [Authorize] in ASP.NET MVC?

I wondered if/how I can override the default [Authorize] behavior in ASP.NET MVC. I know that I can create a ... but just change how it works. See Question&Answers more detail:os...

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

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458 views

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c# - How to use Microsoft.Scripting.Hosting?

To embed some IronPython Code into C# I want to use the ScriptEngine using IronPython.Hosting; using Microsoft.Scripting ... targeting .Net 3.5. See Question&Answers more detail:os...

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

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437 views

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c# - awaiting task with timeout

I'm trying to write a helper method which allows me to pass in an arbitrary task and a timeout. If the ... my usage of Task.WhenAny incorrect? See Question&Answers more detail:os...

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

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479 views

1 answer

c# - How can I embed a PowerPoint presentation into a WPF application without opening another window?

Currently I have a WPF application in C#, but I'm finding it to be incredibly difficult to find any ... of the PowerPoint integration headaches. See Question&Answers more detail:os...

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

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