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Preview layout with merge root tag in Intellij IDEA/Android Studio
... the preview correctly when you add your custom view tag in another layout file? <com.yourpackage.yourcustomview id="@+id/my_cust_view" android:layout_width="match_parent" android:layout_height="match_parent"/>
– Arst
Aug 14 '17 at 23:06
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How to know if an object has an attribute in Python
...P is the only correct option. For example, if you check the existence of a file and then open it, expecting that it will definitely exist, your code is incorrect: the file may be deleted or renamed between the check and the use. This is called a TOCTOU error (Time-Of-Check-To-Time-Of-Use) and beside...
Debugging Package Manager Console Update-Database Seed Method
...n:
throw new Exception("Your message");
Another way is to print message in file by creating a cmd process:
// Logs to file {solution folder}\seed.log data from Seed method (for DEBUG only)
private void Log(string msg)
{
string echoCmd = $"/C echo {DateTime.Now} - {msg} >&g...
Getting LaTeX into R Plots
...aphics)
require(tikzDevice)
setwd("~/DataFolder/")
Lab5p9 <- read.csv (file="~/DataFolder/Lab5part9.csv", comment.char="#")
AR <- subset(Lab5p9,Region == "Forward.Active")
# make sure the data names aren't already in latex format, it interferes with the ggplot ~ # tikzDecice combo
colnames...
Is type=“text/css” necessary in a tag?
...ute if the browser may not support the type => useless for web standard files like CSS.
– jave.web
Oct 13 '19 at 18:29
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Nokogiri installation fails -libxml2 is missing
...issue on Debian Lenny).
The Nokogiri build test-compiles a libxml2 header file to verify that it is present, however, it doesn't differentiate between "libxml2 is missing" and "a compiler to test libxml2 is missing".
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How to get list of all installed packages along with version in composer?
...h the latest version of Symfony just being released and my composer.json file not specifying exact version numbers.
8 Ans...
Ajax success event not working
...print) any text/data prior to generate your JSON formated data in your PHP file. That could explain that you get a -sucessfull 200 OK- but your sucess event still fails in your javascript. You can verify what your script is receiving by checking the section "Network - Answer" in firebug for the POST...
C# Stream流使用总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...文章简单总结了在C#编程中经常会用到的一些流。比如说FileStream、MemoryStream、 BufferedStream、 NetWorkStream、 StreamReader StreamWriter、 TextReader TextWriter等的简单用法。一、FileStream类
FileStream类主要用于读取磁盘上的文件或者向磁盘文件...
Is it possible to use AutoLayout with UITableView's tableHeaderView?
...uch to use auto layout in the header view. You just have to create you xib file, put your constraints and instantiate it like this:
func loadHeaderView () {
guard let headerView = Bundle.main.loadNibNamed("CourseSearchHeader", owner: self, options: nil)?[0] as? UIView else {
re...