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c# - Unable to determine the principle end of the relationship - multiple added entities may have the same primary key

Sets have Cards and Sets. Here's what I have in my model, using EF Code First: public class Set { // ... same primary key. Any idea why? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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dplyr - Collapse dataframe in r by factor with NAs

I want to collapse my dataframe so that there's only one factor variable per row and the values all collapse on themselves to ... NA, ..., 3, 1 See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - NullPointerException continues

When I am trying to call JPanel panel2 of Panel2 class on triggering of action event from Next JButton of ... exception is eating my head. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How can I access td Id in aspx.cs page of asp.net c#?

I have used this code but it doesn't work. HtmlGenericControl T1 = (HtmlGenericControl)Page.FindControl("T1"); T1 ... an instance of an object See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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perl - Parsing a GenBank file

I trying to parse a GenBank file so I could get the accession number, the definition, the size of the file and ... one or two blocks of code? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Pivot table content using awk command

i would like to use awk to pivot the table content, can someone share how will i do this. thanks table1 FEATURE,TESTER ... Medium,48,0,48,0,0,,0 See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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google chrome - Disable the possibility to print a PDF in a browser running on a kiosk-mode computer

I'm developping an application which will be used inside a web browser (Firefox or Chrome). One part of ... experience of using the application. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ios - SHA256 Swift to Objective C equivalence

Hello everyone I'm working for the first time with SHA256 and I'm trying to follow a tutorial on this my problem is ... () } Can you help me ? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Retrieving maximum value from sql-vb.net

I am trying to retrieve a maximum value from sql - vb.net This is my code: I get this error: Unable to cast ... As Decimal = dr2.Item("LASTNO") See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ruby - How to use "Next!" on Rails for a loop?

Salutations, I'm a newbie learning the Rails (Ruby On Rails) program and I've came to a road block on one of the ... break if i <= 0 end T-Boye See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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logging - In Visual Studio Code, is there a way to get a merged git log of all git commands from both Source Control pane and Terminal window?

This is a spin-off from In Visual Studio Code, how can I get a git log of all git commands executed in ... is the sequence of the commands. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c++ - What is the problem with appending arbitrary object to the array?

I have a simple program that process strings from a file into arbitrary class Student (provided below) and appends it ... like this? Any ideas? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Why isn't jQuery installing?

<!doctype html> <html> <head> <title>jQuery install test</title> <meta charset="utf-8" /> <meta http-equiv= ... code? I am new to programming. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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In Android Disable ONLY HomeKey Button

Hi I am looking for disabling the Only HomeKey In Android. WHat i am trying to do is @Override public void ... HomeKey in android. Please reply. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Using Jquery,Can anyone help me with highlighting color of date(In a week view) in full calendar

I got new requirement,Using Jquery,Can anyone help me with highlighting color of date(In a week view) in full ... help with me this please. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c++ - variable array value depending on increasing row number

A short description of my program that I am working on: I input a number n which means number of rows. a b variables ... (s); system("pause"); } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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sql - Unkown query: insert <TableNameX> select *.%%bmk%% from<TableNameX>

can someone explain me what this line means: insert <TableNameX> select *,%%bmk%% from<TableNameX> i saw a ... creating indexes on - TableNameX. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to get real time data using socket.io to a Win Form using C#

I'm using the following C# code to show real time data in my desktop application string strQuery = "AbcD" ... Please provide a solution. Thanks. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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asp.net - Save state of html to database

I am doing Project by asp.net. Some states of changing themes of page (setting allows users to change private themes ... for each user. Tks ! See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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office365 - Office 365 Unified Api (preview )

I tried to implement O365 unified api(beta version). I got successfully all groups. I faced problem to get ... please help me. Thanks Rajinder See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - Custom OrderBy on a List based on a string property value

I have the following class : public class Document { public string DocumentSection { get; set; } public string ... to achieve this ordering ? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - JSON NET Custom deserializer not work at all

I need to use custom Json deserialiser I've done the next: JsonCreationConverter public abstract class ... Why it happens? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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batch file - Programmatically create shortcuts for folders in Windows

I have a folder A and a folder B. For each subfolder inside A I need to check if B contains a link ... how to create folder shortcuts instead? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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how to edit script to send table google sheet by mail?

need help please to edit script in google sheet i would like to send automatically an email everyday with a table ... :[contenant] }); } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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how to display different data sequentially date of status 1 first in sql server

how to display different data sequentially date of status 1 first result like this image See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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css - What reasons would text not appear on a page as a heading for radio buttons?

I am writing in HTML and my title for a radio buttons section on my page isn't appearing. Also I can't seem to ... Deejaying</label> </div> \\\ See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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python - Accounting formatting in Pandas df

x=pd.DataFrame([[5.75,7.32],[1000000,-2]]) def money(val): """ Takes a value and returns properly formatted ... they didn't work really at all. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How do I do mobile animation perfectly?

As you can see my last post didn't attract the community but I managed to get that animation on iPhone working ... ; setTimeout(after, 850); } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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