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An invalid form control with name='' is not focusable
...ngs that we don't want to validate.
$(["input:hidden, textarea:hidden, select:hidden"]).attr("disabled", true);
// If HTML5 Validation is available let it run. Otherwise prevent default.
if (this.el.checkValidity && !this.el.checkValidity()) {
// Re-enable things that we...
how do I use UIScrollView in Interface Builder?
...tion to configure the UIScrollView's contentSize from Interface Builder:
Select the UIScrollView in the Storyboard scene
Go to the Identity inspector, create a new User Defined Runtime Attribute (click the + button)
Change the attribute Key Path to contentSize
Change the attribute Type to Size
Now...
Remove duplicated rows using dplyr
...ce(from = 1, to = 1)
Or maybe a variation of unique() that would let you select which
variables to use:
df %>% unique(x, y)
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Android emulator doesn't take keyboard input - SDK tools rev 20
...elated note, if your tablet emulator is missing the BACK/HOME buttons, try selecting WXGA800 as the Built-in skin in the AVD editor:
Or by manually setting the skin in config.ini:
skin.name=WXGA800
skin.path=platforms/android-16/skins/WXGA800
(example is for API 16)
...
SQL-Server: The backup set holds a backup of a database other than the existing
...go for the restore option
Under Options on the left pane don't forget to select
Overwrite the existing database
Preserve the replication settings
That's it
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How can I make the Android emulator show the soft keyboard?
... time I try to do it, it resets itself! I click New... Hardware property, select Keyboard Support, change the value to 'no', click edit/create, but when I edit it again or get info: Hardware Keyboard = yes! Ha! I can't express how sublime I find the Android emulator.
– blahd...
关于php的socket初探 - PHP - 清泛IT论坛，有思想、有深度
...连接的模型都应该被称为多路复用，目前比较常用的有 select/poll/epoll/kqueue 这些 IO 模型（目前也有像 Apache 这种每个连接用单独的进程/线程来处理的 IO 模型，但是效率相对比较差，也很容易出问题，所以暂时不做介绍了）。在...
mysql - how many columns is too many?
...every column to be returned by every query is perfectly normal; that's why SELECT statement lets you explicitly name the columns you need.
As a general rule, your table structure should reflect your domain model; if you really do have 70 (100, what have you) attributes that belong to the same entit...
HTTPS with Visual Studio's built-in ASP.NET Development Server
...
Select the project-file in the Solution Explorer: for example: "WebApplication1".
With pressing ALT+ENTER you enter the project-properties.
Select "DEBUG" on the left side.
Here you can select "Enable SSL".
Then you can...
Landscape printing from HTML
...y seem to work in IE7 but this is because IE7 will remember the users last selection of landscape or portrait in print preview (only the browser is re-started).
This article does have some suggested work arounds using JavaScript or ActiveX that send keys to the users browser although it they are no...