Error: Deleted row information cannot be accessed through the row
You can also use the DataSet’s AcceptChanges() method to apply the deletes fully. ds.Tables[0].Rows[0].Delete(); ds.AcceptChanges();
runtime
How are Haskell programs compiled and executed internally?
To compile and execute a programming language on stock hardware you need a number of things: a compiler to translate your source language into assembly code executable by the native host a support library (aka runtime) for primitive language services, such as memory management, IO and thread management. Things that must be leveraged from lower-level … Read more
In Java, is there any disadvantage to static methods on a class?
In my opinion, there are four reasons to avoid static methods in Java. This is not to say that static methods are never applicable, only to say that they should generally be avoided. As others have pointed out, static methods cannot be mocked out in a unit test. If a class is depending on, say, … Read more
How to get Javascript Function Calls/Trace at Runtime
I can’t think of a great way to intercept all function calls globally to insert logging (though there is a decent workaround in the update section below). Instead, how about only adding logging to functions in a certain namespace that you care about? You can do this with the following setup code: var functionLogger = … Read more
Execute external program
borrowed this shamely from here Process process = new ProcessBuilder(“C:\\PathToExe\\MyExe.exe”,”param1″,”param2″).start(); InputStream is = process.getInputStream(); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); String line; System.out.printf(“Output of running %s is:”, Arrays.toString(args)); while ((line = br.readLine()) != null) { System.out.println(line); } More information here Other issues on how to pass commands here and here
Create a NinePatch/NinePatchDrawable in runtime
getNinePatchChunk works just fine. It returned null because you were giving Bitmap a “source” ninepatch. It needs a “compiled” ninepatch image. There are two types of ninepatch file formats in the Android world (“source” and “compiled”). The source version is where you add the 1px transparency border everywhere– when you compile your app into a … Read more
Excel VBA Code: Compile Error in x64 Version (‘PtrSafe’ attribute required)
I think all you need to do for your function is just add PtrSafe: i.e. the first line of your first function should look like this: Private Declare PtrSafe Function swe_azalt Lib “swedll32.dll” ……
read the output from java exec
Use getErrorStream(). BufferedReader in = new BufferedReader(new InputStreamReader(pr.getErrorStream())); EDIT: You can use ProcessBuilder (and also read the documentation) ProcessBuilder ps=new ProcessBuilder(“java.exe”,”-version”); //From the DOC: Initially, this property is false, meaning that the //standard output and error output of a subprocess are sent to two //separate streams ps.redirectErrorStream(true); Process pr = ps.start(); BufferedReader in = new … Read more
Change the location of an object programmatically
The Location property has type Point which is a struct. Instead of trying to modify the existing Point, try assigning a new Point object: this.balancePanel.Location = new Point( this.optionsPanel.Location.X, this.balancePanel.Location.Y );
numpy.max or max ? Which one is faster?
Well from my timings it follows if you already have numpy array a you should use a.max (the source tells it’s the same as np.max if a.max available). But if you have built-in list then most of the time takes converting it into np.ndarray => that’s why max is better in your timings. In essense: … Read more