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为AppInventor2开发拓展(Extension) · App Inventor 2 中文网
...供已下载好的工程源码，关注页面底部公众号（或搜索“fun123cn”关注），回复“源码”即可免费下载。
代码编写
采用自己较为熟悉的java开发环境就行，这里推荐使用VSCode，拓展目录在 appinventor-sources/appinventor/components ，测试...
Download file from an ASP.NET Web API method using AngularJS
...lorer, FireFox and Safari.
It uses an arraybuffer response type, which is then converted into a JavaScript blob, which is then either presented to save using the saveBlob method - though this is only currently present in Internet Explorer - or turned into a blob data URL which is opened by the brow...
ASP.NET MVC Razor Concatenation
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I'm using Visual Studio 2013 and ASP.NET MVC 5, and this is not working (the string is set as is, including the @ and the parentheses)... What finally worked for me was the very ungraceful id="foo" + Model.Bar.
– Ian Campbell
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What is an .axd file?
... you send if you reference a external script file. If you embed it in code then it may merely appear as part of the html as a tag and code but depending if you code according to how the ToolKit handles it - may or may not appear as as a ScriptResource.axd. ScriptResource.axd is only introduced with...
How to use HTML Agility pack
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First, install the HTMLAgilityPack nuget package into your project.
Then, as an example:
HtmlAgilityPack.HtmlDocument htmlDoc = new HtmlAgilityPack.HtmlDocument();
// There are various options, set as needed
htmlDoc.OptionFixNestedTags=true;
// filePath is a path to a file containing the h...
What are the Web.Debug.config and Web.Release.Config files for?
...oying to azure / publishing packages. Here's an interesting thread: forums.asp.net/t/1532038.aspx
– Nick
Oct 4 '14 at 1:13
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How do you force Visual Studio to regenerate the .designer files for aspx/ascx files?
...so reported success by (making a backup copy of your .designer.cs file and then) deleting the .designer.cs file. Re-create an empty file with the same name.
There are many comments to this answer that add tips on how best to re-create the designer.cs file.
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jQuery map vs. each
...()'s, $.each()'s, and .map()'s callback function take the index first, and then the element
function (index, element)
$.map()'s callback has the same arguments, but reversed
function (element, index)
2: .each(), $.each(), and .map() do something special with this
each() calls the function in...
How to Create a circular progressbar in Android which rotates on it?
...ld get a reference to your progressbar and the call its setProgress method then pass the value. google.com/…
– M. Reza Nasirloo
Oct 3 '14 at 14:27
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Count number of rows within each group
... new variable Count with a value of 1 for each row:
df1["Count"] <-1
Then aggregate dataframe, summing by the Count column:
df2 <- aggregate(df1[c("Count")], by=list(Year=df1$Year, Month=df1$Month), FUN=sum, na.rm=TRUE)
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