Recent questions tagged C#

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c# - Error - A SignInResponse message may only redirect within the current web application - MVC 2.0 application

I have a situation where we have a MVC 2 application(I tried this with a basic MVC 2 app without any extra stuff, ... while now to no avail.. J 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 can I calculate what date Good Friday falls on, given a year?

Does anyone have a good algorithm to calculate what date Good Friday falls on given the year as an input? Preferably in C#. See Question&Answers more detail:os...

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

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162 views

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c# - Could not load file or assembly crdb_adoplus.dll

For the following error: Could not load file or assembly file:///C:Program FilesSAP BusinessObjectsSAP ... work in my application 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# - What are some good alternatives to multiple-inheritance in .NET?

I've run into a bit of a problem with my class hierarchy, in a WPF application. It's one of those ... Win32 whenever the going gets tough. 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# - Controller in separate assembly and routing

In the same solution, there is a ASP.NET MVC4 application Slick.App and class library Awesome.Mvc.Lib. ... in separate class library? See Question&Answers more detail:os...

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

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444 views

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c# - How to limit a LINQ left outer join to one row

I have a left outer join (below) returning results as expected. I need to limit the results from the 'right' ... = query; GridView1.DataBind(); 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 activate combobox on first click (Datagridview)

In winforms, you need to click the combobox twice to properly activate it - the first time to focus it, ... This is for DATAGRIDVIEW combobox. 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# - VS2012 Breakpoints are not getting hit

I have a class that looks like this: public class MyService { private MyService(){} public static string ... cleaned solution. Still nothing. 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# - How to handle nulls in LINQ when using Min or Max?

I have the following Linq query: result.Partials.Where(o => o.IsPositive).Min(o => o.Result) I get an ... it says: The sequence is empty): 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# - Where can I get a list of Unicode chars by class?

I'm new to learning Unicode, and not sure how much I have to learn based on my ASCII background, but I'm ... A Unicode character of the class Cf See Question&Answers more detail:os...

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

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423 views

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c# - Factory Pattern with Open Generics

In ASP.NET Core, one of the things you can do with Microsoft's dependency injection framework is bind ... 's dependency injection framework? See Question&Answers more detail:os...

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

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512 views

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c# - FluentValidation - Validating a View Model that contains a list of an Object

I am trying out FluentValidation on a project that contains complex view models and I read the documentation here but I ... Guitars here???? } } 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

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c# - Any way to surround code block with Curly Braces {} in VS2008?

I always find myself needing to enclose a block of code in curly braces { }, but unfortunately that isn't ... that would be even better! See Question&Answers more detail:os...

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

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202 views

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c# - How to set up unit tests in Unity and fix missing assembly reference error?

I created the following structure: ├── Assets ├── Scenes ├── Scripts │ └── MyExample.cs ├── Tests │ ├── MyExampleTest. ... class Example { } } See Question&Answers more detail:os...

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

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592 views

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c# - Is there a Math API for Pow(decimal, decimal)

Is there a library for decimal calculation, especially the Pow(decimal, decimal) method? I can't find any. It ... be as precise as doubles. See Question&Answers more detail:os...

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

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436 views

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c# - Can you create a simple 'EqualityComparer<T>' using a lambda expression

Short question: Is there a simple way in LINQ to objects to get a distinct list of objects from a list based on a ... from a set based on a key. See Question&Answers more detail:os...

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

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136 views

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c# - Trying to set-up Entity Framework core in .Net Standard project

I was wondering if I could set-up my EntityFrameworkCore in a .NET Standard 2.0 project easily. I was following ... I should be doing instead? 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# - Why does the string type have a .ToString() method?

Why does the string data type have a .ToString() method? See Question&Answers more detail:os...

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

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278 views

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c# - How can I unzip a file to a .NET memory stream?

I have files (from 3rd parties) that are being FTP'd to a directory on our server. I download them and process ... small - say 4k <-> 1000k. See Question&Answers more detail:os...

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

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149 views

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c# - object to string array

I am trying to convert an object (is declared here as 'obj': object is array, primitive) to a string ... type casting. 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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267 views

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c# - Why are there memory allocations when calling a func

I have the following program which construct a local Func from two static methods. But strangely, when I profile the ... func(guids); } } } See Question&Answers more detail:os...

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

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213 views

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c# - Will an IF statement stop evaluating if it fails the first condition?

If I have an If statement with 2 conditions - and the first fails, will the 2nd condition even be considered or ... { //Do something else } See Question&Answers more detail:os...

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

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165 views

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c# - What exactly is "managed" code?

I've been writing C / C++ code for almost twenty years, and I know Perl, Python, PHP, and some Java as ... feeling rather N00B-ish right now... See Question&Answers more detail:os...

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

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315 views

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c# - Find the datatype of Field from DataReader object

I have following query: SqlCommand cmd = new SqlCommand("Select employee_id, lastname, firstname from Employees", ... using the SqlDataReader? 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

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c# - Xamarin Forms: StackLayout with rounded corners

I am developing an app using Xamarin Forms PCL. I need a StackLayout with rounded corners. I have tried ... property for all the platforms. See Question&Answers more detail:os...

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

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201 views

1 answer

c# - Delete all entities in Entity Framework

I want to delete content of all tables (all entities) using Entity Framework 4+. How can this be done? See Question&Answers more detail:os...

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

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156 views

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c# - How to get a distinct list from a List of objects?

I have a List<MyClass> someList. class MyClass { public int Prop1... public int Prop2... public int Prop3.. ... but only comparing it to Prop2. See Question&Answers more detail:os...

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

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285 views

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c# - How to compare nullable types?

I have a few places where I need to compare 2 (nullable) values, to see if they're the same. I think ... should have used .Equals... instead. See Question&Answers more detail:os...

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

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