Recent questions tagged .net

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.net - Checking if an object is a number in C#

I'd like to check if an object is a number so that .ToString() would result in a string containing digits ... </numeric> or raise an exception. 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 can I generate UUID in C#

I am creating an .idl file programmatically. How do I create UUIDs for the interfaces and Methods ... generate the UUID programmatically? 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 can I produce a "print preview" of a FlowDocument in a WPF application?

Various WPF applications of mine display FlowDocument's. I'm able to print them, using the approach described in ... is part of Windows? 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 - Validate data using DataAnnotations with WPF & Entity Framework?

Is there any way to validate using DataAnnotations in WPF & Entity 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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.net - DataContractSerializer vs XmlSerializer: Pros and Cons of each serializer

My desktop application serializes objects using XmlSerializer. I was suggested to leverage DataContractSerializer instead. Under ... 3.5 SP1. 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 write LINQ's .Skip(1000).Take(100) in pure SQL?

What is the SQL equivalent of the .Skip() method in LINQ? For example: I would like to select rows 1000-1100 ... the table can be quite large. 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 - Install Windows Service with Recovery action to Restart

I'm installing a Windows Service using the ServiceProcessInstaller and ServiceInstaller classes. I've used the ... during the install? 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 - Find image format using Bitmap object in C#

I am loading the binary bytes of the image file hard drive and loading it into a Bitmap object. How do i find the image ... ) //It's a PNG; } } 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 - Display a tooltip over a button using Windows Forms

How can I display a tooltip over a button using Windows Forms? 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 should I cast in VB.NET?

Are all of these equal? Under what circumstances should I choose each over the others? var.ToString() CStr ... ; TryCast(var, String) 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 - Can the C# interactive window interact with my code?

In Visual Studio 2015 or later, I can open the 'C# interactive window', and run code: > 5 + 3 8 ... using directive or an assembly reference?) 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 C# analog of C++ std::pair?

I'm interested: What is C#'s analog of std::pair in C++? I found System.Web.UI.Pair class, but I'd prefer something template-based. Thank you! 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 - Running Code Analysis (FxCop > 10) on build agent without installing Visual Studio

After FxCop 10 Microsoft stopped shipping a separate installer for FxCop. Officially one can currently only run ... Studio 2013) SonarQube 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 get folder path for ClickOnce application

I need to write a file in the same folder where a console ClickOnce .application (executable file) resides. ... the .application resides 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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.net - How to completely uninstall Visual Studio 2010?

I've been looking to find a CLEAN solution to completely and ultimately remove Visual Studio 2010 from my ... is actually working well? 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 - When to use IComparable<T> Vs. IComparer<T>

I'm trying to figure out which of these interfaces I need to implement. They both essentially do the same thing. ... I use one over the other? 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 - Installing Mono 3.x in Ubuntu/Debian

I've recently read that Mono 3.0 has been released with a C# 5 compiler and support for MVC 4 here: ... looking at building this from source? 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 extract an assembly from the GAC?

There is a package I have to deal with which installs assemblies straight into the GAC (e.g. somewhere deep ... the normal file system? 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 - What is the string length of a GUID?

I want to create a varchar column in SQL that should contain N'guid' while guid is a generated GUID by . ... just asking what is Guid.MaxLength. 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 - Anatomy of a "Memory Leak"

In .NET perspective: What is a memory leak? How can you determine whether your application leaks? What are the ... Interop and/or P/Invoke? 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 keep single SQL Server connection instance open for multiple request in C#?

I have a Web API which contains database insert logic (ado.net) in C#. When multiple users (e.g. 100 ... records in database. Please suggest. 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 - Using C# to search a CSV file and pull the value in the column next to it

I am trying to make a program I am writing (C# in Visual Studio) look up a value in an external ... code or suggestions would be appreciated. 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 - Equivalent of MoveNext in VB.NET

As Recordset.MoveNext function is no longer available in VB.NET(searched alot on internet), I want a way to solve my ... ... Thanx 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 - Save Settings in VB.Net or C#

How I can save the settings I want even after I close the program? Let's say: If I have a Checkbox and I run ... , so take me slow. Thank you. 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 - Shuffling an array of strings in vb.net

I am developing a webpage in vb.net that will generate a number of multiple choice questions to the user. ... . Your help is appreciated. 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 - Cause this VB6-like smell, which VB.NET allows, to error instead: WinFormType.InstanceProp=Value [DISABLE My.Forms]

I have notice something very obnoxious with VB.Net's treatment of Winform objects. This has trashed several hours of ... ("WRONG!") End Sub 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 validate smtp credentials before sending mail?

I need to validate the username and password set in an SmtpClient instance before sending mail. Using this code: ... connect and send a mail? 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 set HTML to clipboard in C#?

I want to put rich text in HTML on the clipboard so when the users paste to Word, it will include the ... Notepad it will paste plain text. See Question&Answers more detail:os...

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

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