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C# elegant way to check if a property's property is null
...rom b in a.PropertyB
from c in b.PropertyC
select c.Value;
This returns null, if any of the nullable properties are null; otherwise, the value of Value.
class A { public B PropertyB { get; set; } }
class B { public C PropertyC { get; set; } }
class C { public strin...
Managing CSS Explosion
...he start of each line when writing TOCs, it just makes it more annoying to select the text.
/* Table of Contents
- - - - - - - - -
Header stuff
Body Stuff
Some other junk
- - - - - - - - -
*/
...
/* Header Stuff
*/
...
/* Body Stuff
*/
Write comments with or within the rules, ...
How do I find the .NET version?
...ersion,Release -EA 0 |
where { $_.PSChildName -match '^(?!S)\p{L}'} | select PSChildName, Version, Release
The last command (8) will give you all versions, including .NET 4.5.
share
|
improve...
Good introduction to the .NET Reactive Framework [closed]
...ouseDown()
from mv in this.GetMouseMove().Until(this.GetMouseUp())
select new Point(mv.X, mv.Y);
mouseMoveWhileDown
.Pairwise()
.Subscribe(tup => graphics.DrawLine(pen, tup.Item1, tup.Item2));
(I must confess that in that example, Pairwise() is home-grown...)
The most importa...
File upload progress bar with jQuery
.../blueimp/jQuery-File-Upload.
They have a very nice api with multiple file selection, drag&drop support, progress bar, validation and preview images, cross-domain support, chunked and resumable file uploads. And they have sample scripts for multiple server languages(node, php, python and go).
D...
Display lines number in Stack Trace for .NET assembly in Release mode
...u want to see stack trace line numbers.
Click on the Build "vertical tab".
Select "Release" configuration. Check the DEBUG constant parameter.
Uncheck the "Optimize code" parameter to avoid the occasional trace issue with inlined code (this step is not essential).
Press the Advanced... button and ch...
vim “modifiable” is off
...
You can for example select files in a directory, :cw do some changes to their names and save it
– Karolius
Dec 5 '19 at 17:11
...
Google Map API v3 — set bounds and center
... Sorry this is in the wrong place. It's meant to be a comment for the selected answer. But doesn't the extend function need to be inside your for loop?
– kidbrax
Feb 12 '11 at 14:04
...
LoadRunner中参数化技术详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...更新方式：
Update Value on
（更新方法）
Select next row
（数据分配方法）
Sequential顺序
Random随机
Unique唯一
Each Iteration（每次迭代）
对于每次迭代，Vuser会从数据表中提取下一...
How to remove padding around buttons in Android?
...ound="@android:color/transparent"
android:button="@drawable/toggle_selector"
/>
set your drawable file to button attribute like: android:button="@drawable/toggle_selector"
Below is my toggle_selecter.xml file
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns...