Recent questions tagged how

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how to handle WPF listbox selectionchanged event using MVVM

I am trying to perform listbox changed event in WPF using MVVM. Please let me know how to do this selectionchanged event. See Question&Answers more detail:os...

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

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how to execute Python 3.3 script in Spyder console with variables?

how can I execute Python 3.3 script in Spyder console, and that has variables? My sample code (C:/test ... Windows OS, installation: WinPython. See Question&Answers more detail:os...

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

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how to pass the "..." parameters in the parent function to its two children functions in r

I am trying to pass a set of parameters into a function. This function has two sub functions that take part of the above ... ..) + f_plus(...) } See Question&Answers more detail:os...

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

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how to pass qobject as argument from signal to slot in qt connect

My original code passed a QStringList from the signal to the slot and then returned a QList. Everything ... would be greatly appreciated. See Question&Answers more detail:os...

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

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how to select which spring batch job to run based on application argument - spring boot java config

I have two independent spring batch jobs in the same project because I want to use the same infrastructure-related ... Boot and Spring Batch... See Question&Answers more detail:os...

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

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how to save/read class wholly in Python

som = SOM_CLASS() # includes many big difficult data structures som.hard_work() som.save_to_disk(filename) #then later ... way to do this? See Question&Answers more detail:os...

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

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how to set css width equal to length of longest text

I have quite a challenging task. I have this menu here... http://jsfiddle.net/K2Zzh/6/ If you hover over 'treatments ... >Contact</a></li> </ul> See Question&Answers more detail:os...

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

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how to pass command line arguments to a python script running in docker

I have a python file called perf_alarm_checker.py, this python file requires two command line arguments: python ... but doesn't work. See Question&Answers more detail:os...

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

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how does this Ruby class method get invoked?

In a screen cast on Exporting CSV from a rails app, Ryan Bates presented the following simple code. I ... would be greatly appreciated. See Question&Answers more detail:os...

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

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how to set unique constraint over multiple column when any one can be null in sqlite

How do I set unique constraint over multiple column when any one can be null in sqlite? e.g. I have made ... working when third column is null. See Question&Answers more detail:os...

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

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how can my android app programmatically display the keyboard

Is there any way to programmatically tell android to open the keyboard when the focus is obtained by an ... numeric keyboard? Thanks Victor See Question&Answers more detail:os...

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

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how can i solve npm ERR! error:0909006C:PEM in Node.js?

I'm new to Node.js. I tried to add RethinkDB module to my project, but I got: npm error:0909006C:PEM ... online, but none of them worked. See Question&Answers more detail:os...

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

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how to close/stop running application on background android

i want to close or stop running application when i exit from main screen means very first layout of application when i ... System.exit(0); }** See Question&Answers more detail:os...

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

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how to move data from mysql to redis

I attempt to put some frequently used data into redis server from mysql . so redis just as a read server , i ... time, a little latency is ok. See Question&Answers more detail:os...

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

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how to get android cpu temperature programmatically

Tried this but got 0.0 and on physical device nothing found.. Any way to get cpu temperature in android SensorManager ... (temperature)); } } }; See Question&Answers more detail:os...

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

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how to search like LIKe operator in sql in hash map in java

I want to search a hash map depending on the user input. Suppose a user give value 'A',I have to display ... am storing company name in hash map See Question&Answers more detail:os...

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

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how to generate a soap request in php from this xml?

I'm tired of trying to send a request with SOAP. this is my xml <soapenv:Envelope xmlns:soapenv="http:// ... env:body> </soap-env:envelope> See Question&Answers more detail:os...

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

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how are android security permissions checked at run-time?

This question has been asked before at How does Android enforce permissions?. While the discussions there are good, ... are relevant to this. See Question&Answers more detail:os...

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

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how to set id in jquery ui autocomplete source event

I wanted to use the auto complete widget to allow someone to select an employee by typing in an employee name into the ... ).val(span); } }); See Question&Answers more detail:os...

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

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how to play audio through earpiece only in windows phone 8 application

I have tried with AudioRoutingManager class...but i got unauthorizedaccess exception. here is my code ... ChangeAudioRoute()); } See Question&Answers more detail:os...

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

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how do I search for columns with same name, add the column values and replace these columns with same name by their sum? Using R

I have a data frame where some consecutive columns have the same name. I need to search for these, add ... someone help? 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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how to tell Git (msysgit on Windows) to use ssh and not pageant

I installed Git a while back on my Win7 machine and told it to use Putty for doing ssh. So now it ... msysgit to forget about putty/pageant? See Question&Answers more detail:os...

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

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how to retrieve XML data using XPath which contains namespace in Java?

i know there are plenty of this topic in this page but sadly, i still cant get my solution.. here is my ... for my problem? 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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how to use foursquare API in android application?

I want to use foursquare API in my android application. In my app I want to fetch nearby place. Could you please show me how to start? See Question&Answers more detail:os...

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

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how to fetch data from nested Dictionary in c#

I need to fetch data from nested Dictionary IN C#. My Dictionary is like this: static Dictionary<string, ... , string 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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how to retrieve volume from a removed Docker container?

If I have a data volume container, and I stop & remove the container (without the -v flag which would remove ... volume? Or is the data lost? See Question&Answers more detail:os...

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

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how to update python in raspberry pi

I need python newest version in raspberry pi. I tried apt install python3 3.8 apt install python3 but this ... my raspberry pi python IDLE See Question&Answers more detail:os...

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

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how to load additional bean configuration file in spring at run time

I have a spring app, and in the future we will develop more classes, and for these class we will also use ... available in parent. */ } } See Question&Answers more detail:os...

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

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