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App Inventor 2 MultiImagePicker 拓展：实现图片/视频多选功能 - App Inve...
...持选择视频文件
- 长按图片即可一次选择多张
- 可设置最大选择数量
- 可过滤文件类型
官方文档：https://www.fun123.cn/reference/extensions/MultiImagePicker.html
二、属性
MimeFilter（图片过滤类型）
- 默认值：image/*
- 单选和多选...
How to check if a stored procedure exists before creating it
...object_id = OBJECT_ID(N'myproc')
AND type IN ( N'P', N'PC' ) )
DROP …
CREATE …
Update:
Example of how to do it when including the schema:
IF EXISTS ( SELECT *
FROM sysobjects
WHERE id = object_id(N'[dbo].[MyProc]')
and OBJ...
Capturing “Delete” Keypress with jQuery
... 8 for backspace
e.keyCode == 46 for forward backspace or delete button in PC's
Except this detail Colin & Tod's answer is working.
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C#: why sign an assembly?
...portant.
In order to ensure that exe or assembly that is installed on that PC only.
Ie: if you copy that folder and put into another PC it does not work. since it is signing that assembly in to that machine only.
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In C# what is the difference between ToUpper() and ToUpperInvariant()?
...te and time. Looks like sometimes even Microsoft fails the Turkey test, an PC's language isn't even Turkish, just lol.
– Guney Ozsan
Oct 28 '18 at 16:28
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How do I enable MSDTC on SQL Server?
...the file to both the server (DB) and the client (Application server/client pc)
Start it at the server and the client
At the server: fill in the client netbios computer name and try to setup a DTC connection
Restart both applications.
At the client: fill in the server netbios computer name and try ...
9个常用iptables配置实例 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...inute --limit-burst 100 -j ACCEPT
--litmit 25/minute 指示每分钟限制最大连接数为25
--litmit-burst 100 指示当总连接数超过100时，启动 litmit/minute 限制
8.配置web流量均衡
我们可以将一台服务器作为前端服务器，利用iptables进行流量分发，...
Make a program run slowly
... (i.e. -O0 and enable assertions (i.e. -DDEBUG).
You can always buy an old PC or a cheap netbook (like One Laptop Per Child, and don't forget to donate it to a child once you are done testing) with a slow CPU and run your program.
Hope it helps.
...
adb server version doesn't match this client
...
I uninstalled Dell PC Suite and HTC Sync from my computer and this problem went away.
EDIT: To elaborate a bit on the cause of this problem: HTC sync comes with an ADB server of its own. And it updates your PATH environment variable to point t...
Keeping ASP.NET Session Open / Alive
...ol IsReusable { get { return false; } }
public void ProcessRequest(HttpContext context)
{
context.Session["Heartbeat"] = DateTime.Now;
}
}
The key is to add IRequiresSessionState, otherwise Session won't be available (= null). The handler can of course also return a JSON seria...