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c++ - How to declare friend method when class definitions cross reference?

I want to define two classes, A and B. A has a data member which is a Class B object and is in-class ... cross reference issue between A and B? See Question&Answers more detail:os...

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

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'access-control-allow-origin' accessing rest api of Tosca

I am trying to call Tosca's rest api from my server and it's giving me this exception: 'access-control- ... way to get around this exception? See Question&Answers more detail:os...

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

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callback - PictureCallback not called when using takePicture in Android

I'm taking a picture using my own camera and trying to save the result to the file system (/data/data/ ... : stopPreview(), hardware stopped OK 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 - Apply media query when page scrolled without JS

I want to apply media query only when page scrolled xxxx pixels down Is there any way I can do that with ... media query if it is possible. 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 to display multiple data in a single row based on ID using mvc?

Based on the First ID it has Four records data and based on the second ID it has three records. ... displaying multiple role name single row 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 - Selenium webdriver :org.openqa.selenium.InvalidElementStateException: Element is disabled and so may not be used for actions

I am getting this error while trying to write to simple code in selenium webdriver to enter a value in google ... to enable a disabled element? 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 - Detect an indirect update to a field with jQuery

I have a <textarea> that is getting updated from a form with jquery. I might never actually enter anything ... work either. Is this possible? See Question&Answers more detail:os...

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

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android - String back from Bundle

From 1st ACTIVITY Intent IntentButton = new Intent(); IntentButton.setClass(this, PaliActivity2.class); IntentButton. ... from Activity1??? See Question&Answers more detail:os...

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

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tsql - How to continue executing rest of while loop even if an exception occurs in sybase?

This is related to this question but slightly different, I have while loop that inserts records and I want it ... temp table. DROP TABLE #temp 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 extract just the percentage from psutil.phymem_usage() python

I want to get the memory used percentage from psutil.phymem_usage() in python but when I run the function it ... only the percent comes through? 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 - How to show MPMoviePlayerController in landscape mode

i am working on a app where I am required to show "MPMoviePlayerController" in landscape mode and portrait mode ... youtube videos) Please Help See Question&Answers more detail:os...

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

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oracle - Page displaying '?', instead of 'é'

I am retriving data from oracle11g and displaying the data on IE8 and IE9 browser, but the couldn't display some ... 1000" maxWait="-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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php - Using error function in jquery/ajax

I'm working on a connection module in ajax/php using jquery. I need to throw an exception from php to ajax, ... errors from php through ajax ? See Question&Answers more detail:os...

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

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forms - submitHandler is not triggered although it is valid

I AJAXified commenting system so when Post Comment button is clicked ajax call is made instead of the original ... form after the validation? See Question&Answers more detail:os...

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

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serialization - What is the safest way to use direct byte buffers in Java?

Lets sat I have an object i'd like to store in a direct byte buffer. I'd like to able access parts of the ... if its possible to do this... See Question&Answers more detail:os...

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

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php - What does findSerializeError function do?

I periodically stumble upon the unserialize(): Error at offset error when unserializing data from database. I'm using ... , PHP_EOL; } } } See Question&Answers more detail:os...

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

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Commands in a Git Script Functions (Windows) Not Working As Expected in Sub Folder Under a Git Repo

I have the following folder structure... GitRepo .git [files] IgnoredFolder #ignored from .gitignore SubRepo I'm ... not? Thanks in advance. See Question&Answers more detail:os...

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

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image processing - RGB value of a pixel, combined from 2 overlaying pixels

I am creating an animated gif with Water and Land. The Land part has shores, so the water will in some cases ... of first group + 60% of second 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 mvc 4 - MVC validator for integer array in model

I have used validator required field in my model as follow and its working [Required(ErrorMessage = "Description ... on integer array ? See Question&Answers more detail:os...

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

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compiling C program with gcc; Cannot open output file _.exe: no such file or directory

I just started trying to program in C and I've downloaded all kinds of IDE's and compilers and nothing seems to ... "something.c" for the name. See Question&Answers more detail:os...

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

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date - php datetime createformat parse

I'm trying to parse following string: Thu Oct 03 2013 07:03:41 GMT+0200 (Central Europe Standard Time) ... calling $date->format: boolean false See Question&Answers more detail:os...

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

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Android PieChart Using AChartEngine

I'm using AChartEngine to create Pie Chart on Android .It's OK. But I want to remove "Line connect to Label ... .png Please help me ! 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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c# - loading from xml file

i am trying loading and saving data by Robert Harvey code in this topic. i can save. but load process is not ... double[]; the XML content : 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 reference to another object in Java?

I'm doing an homework question, and not sure what is wrong with my code. The question is: http://prntscr.com/ ... why it cant find the symbol. See Question&Answers more detail:os...

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

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wpf - Bind ViewModel property to DataGridComboBoxColum

I am trying to use an enum in a Datagrid. Let me show you two ways that it can work. First, I create ... is 'ItemsSource' (type 'IEnumerable') See Question&Answers more detail:os...

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

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jquery - Switch active class between groups of include/exclude buttons

I have an application which provides a list of filters. Each filter has an "include" and "exclude" button, for ... 2, etc. Is this possible? See Question&Answers more detail:os...

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

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json - Creating javascript object from array values

I am attempting to create a javascript object so that I can tranfsorm it into a json string in order to update a ... . What am I doing wrong? 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 - Firebase/Firestore Spinner hack

I'm trying to understand the connection between Firebase/Firestore and Android. I want a simple Spinner in my Android-app ... how do I fix it? See Question&Answers more detail:os...

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

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