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What's the difference between the four File Results in ASP.NET MVC
...self here as a result of an interesting situation. We were delivering some pdf attachments via the MVC3/C# environment. Our code got released and we started getting some responses from our clients that the downloads were behaving strangely when they were using Chrome and the file type was being conv...
App Inventor 2 TableView 拓展：TableView 拓展：数据表格视图，表格展示...
...
效果如下：
.aix 拓展下载：
cn.fun123.Table.aix
demo程序下载：
table_demo.aia
使用方法
初始化表格对象到一个布局中，并设置表头及表头背景颜色：
展示数据表格：
平滑滚动到最后一行：
...
App Inventor2 如何在screen2保留变量？ - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...题二：当一个按钮被点击过后，能否重新点击执行不同的程序?
求解问题1请参考：《App Inventor在不同的屏幕之间传递变量》
问题2可以点击第一次设置变量为一个值（比如1），然后再次点击时判断这个值是不是1，则执行其他动...
File input 'accept' attribute - is it useful?
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I needed to accept JPG, PNG, GIF, PDF, and EPS files, but accept='.jpg,.png,.gif,.pdf,.eps' didn't allow any selection. I tried many variations - space delimited, no dot characters, etc., but no dice in Chrome v20, so I ended up using the mime types and it wo...
list every font a user's browser can display
...n get separated
var testString = "mmmmmmmmmmlli";
//we test using 72px font size, we may use any size. I guess larger the better.
var testSize = '72px';
var h = document.getElementsByTagName("body")[0];
// create a SPAN in the document to get the width of the text we use to te...
BLE通信数据不能超过20字节？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
...2 代码中，我放置了这一行：BLEDevice::setMTU(192);
2- 在应用程序中，我将调用 Request MTU 放在 .Connected 块上，请求相同的 192 字节；
就我而言，当我必须发送< 23字节的有效负载时，我可以像很多示例一样使用调用.WriteStrings，但...
How to add \newpage in Rmarkdown in a smart way?
...```{r, echo=FALSE}
plot(1:10)
```
This solution assumes you are knitting PDF. For HTML, you can achieve a similar effect by adding a tag <P style="page-break-before: always">. Note that you likely won't see a page break in your browser (HTMLs don't have pages per se), but the printing layout...
【生成Python】AppInventor2中文网已支持代码块转换Python源码！ - App Inv...
...不得不说整体的设计理念非常具有前瞻性。
咱作为“技术流派”，这么先进的设计理念和实用的功能，咱可不能忽视它，加之最近还有用户问AppInventor能否转Python代码，这不，这个功能不就来了嘛~~
先来个具体的例子，看...
Landscape printing from HTML
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The final alternative I have found is to create a landscape version in a PDF. You can point to so when the user selects print it prints the PDF. However I could not get this to auto print work in IE7.
<link media="print" rel="Alternate" href="print.pdf">
In conclusion in some browsers it ...