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c# - Cannot find Bitmap Class in Class Library (.NET Standard)

I want to make a Class Library (.NET Standard) and I'm using System.Drawing, but I get the error: CS0246 C# The ... I'm using .NET Standard 2.0. See Question&Answers more detail:os...

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Difference between type[] and [type] in typescript

Lets say we have two interfaces: interface WithStringArray1 { property: [string] } interface WithStringArray2 { property: ... ] and string[]? See Question&Answers more detail:os...

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vb.net - Convert String to Double - VB

Is there an efficient method in VB to check if a string can be converted to a double? I'm currently doing this ... as a string Return x End Try See Question&Answers more detail:os...

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

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c++ - Why must initializer list order match member declaration order?

Why does gcc throw a hissy fit if the initializer list order doesn't match variable order in the class? class ... where it may backfire maybe?) See Question&Answers more detail:os...

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security - Can a client view server-side PHP source code?

I'm developing a PHP application that has to respond to request from several clients, and I thinks "Can any of the ... code that I'm writing?". See Question&Answers more detail:os...

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What is the equivalent of Java wildcards in C# generics

I'm developing an application where I the need to invoke a method of a generic class and I don't care about the ... seems to be the only way. See Question&Answers more detail:os...

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iterator - is it possible to filter on a vector in-place?

I'd like to remove some elements from a Vec, but vec.iter().filter().collect() creates a new vector with ... an extra capacity of the vector). See Question&Answers more detail:os...

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Use of wildcards in mysql table name

The table names in my mysql database are dynamically generated. Is there some way to select data from tables ... select * from 'table_id_%' See Question&Answers more detail:os...

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

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validation - jquery get only all html elements with ids

I have a div with many many html elements like other divs, trs, tds, tables etc Is it possible to get all the ... "#") or something like this?! See Question&Answers more detail:os...

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c++ - How to convert Platform::String to char*?

How do I convert the contents of a Platform::String to be used by functions that expect a char* based string? ... just can't find them. Thanks! See Question&Answers more detail:os...

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Function-based indexes in SQL Server

I'm trying to understand if function based indexes similar to the one's in Oracle or PostgreSQL exist in SQL ... create/view such an index? See Question&Answers more detail:os...

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c++ - Constructor of type int

Considering the cost, are these cases the same? // case 1 int a = 5; // case 2 int a (5); // case 3 int a; a = 5 See Question&Answers more detail:os...

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html - Will targeting IE8 with conditional comments work?

When IE8 is released, will the following code work to add a conditional stylesheet? <!--[if IE 8]> < ... can share their experience. Thanks. See Question&Answers more detail:os...

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oracle - ORA-12704: character set mismatch

Hell when I do: select COALESCE (CORP_ID, 0) from crmuser.accounts; The CORP_ID records which are Null returns ... do to return default Values? See Question&Answers more detail:os...

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regex - Is There a Way to Match Any Unicode Alphabetic Character?

I have some documents that went through OCR conversion from PDF into HTML. Because of that, they wound up ... that changes anything. 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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c++ - Where should non-member operator overloads be placed?

I want to overload operator<< for my class. Should I add this overloaded definition to the std namespace? ( ... in advance for your responses. See Question&Answers more detail:os...

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php - Fatal error: Call to undefined function openssl_random_pseudo_bytes()

I am getting this exception when trying to run my PHP unit tests: Fatal error: Call to undefined function ... ) What does it mean? See Question&Answers more detail:os...

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itext - How to place the Same Digital signatures to Multiple places in PDF using itextsharp.net

I have implemented Digital Signature using iTextSharp Dll to sign PDF files with a single signature creating empty ... to complete the task See Question&Answers more detail:os...

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

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cocoa - Most effective way to do networking on Mac/iPhone?

What would be the most effective way (that is, best ratio of effort vs readability and maintainability) to establish ... it did under the hood. See Question&Answers more detail:os...

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function - How can I sort multiple arrays based on the sorted order of another array

I have multiple arrays, and I want to sort all of them based on the sorted order of one of them, like so: var ... ", "c is the third letter"] See Question&Answers more detail:os...

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

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Rails Scoping For has_many :through To Access Extra Data

As we know, in rails you can add extra attributes to your has_many :through join model I'd like to extract the ... you don't get that often! See Question&Answers more detail:os...

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

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javascript - Closures in a for loop and lexical environment

Simple case: I want to load several images which have a common name and a suffix, e.g: image0.png, image1. ... can I get my desired behavior? See Question&Answers more detail:os...

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xslt - Rendering a node sequence as M x N table

@Oded: Sorry to have been poor in my exposition... My input document has a fragment like this: <recordset name= ... Someone has a hint? Thanks! See Question&Answers more detail:os...

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SAP Extract into EXCEL via VBA out of memory

I am trying to extract a SAP transaction into a .txt document through a SAP script that I recorded which finally then ... .Value = Now() End Sub See Question&Answers more detail:os...

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Visual Studio 2012 "Show All Files" button missing

In my solution I have three projects: Console application, class library, and a website project. The Show All ... am running Visual Studio 2012. See Question&Answers more detail:os...

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Visual Studio: Where does it store "Set as startup project"?

Let's say a single solution (.sln) has 2 (.vcproj) named Proj1 and Proj2. By default, Visual Studio assigned ... Note: I use Visual Studio 2008 See Question&Answers more detail:os...

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

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c# - Format .NET DateTime "Day" with no leading zero

For the following code, I would expect result to equal 2, because the MSDN states that 'd' "Represents the day of ... zero, which I don't want. See Question&Answers more detail:os...

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c# - What causes "extension methods cannot be dynamically dispatched" here?

Compile Error 'System.Data.SqlClient.SqlConnection' has no applicable method named 'Query' but appears to have an ... failing with that error? See Question&Answers more detail:os...

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

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