methods

问题 How can I update a product by product_id in my functions file? I tried using the below code but to no success: $_pf = new WC_Product_Factory(); $product_id = wc_get_product_id_by_sku( $sku ); $_product = $_pf->get_product($product_id); $_product->set_price('225'); 回答1: Since WooCommerce 3, new WC_Product_Factory() with get_product() method is deprecated and replaced simply by the function wc_get_product() . To update price, you have to update the price and the regular price (or the price and

问题 I have the following code: public partial class Form1 : Form { public Form1() { InitializeComponent(); try { this.CheckValue(true); // call method } catch(Exception ex) { // how to get here name of last called method } } public int CheckValue(bool sender) { var qwe = int.Parse("qwe"); // invoke an exception return 0; } } I need to get in "catch block" name of last called method (in this case "CheckValue"), but it return that called method is "StringToNumber". I try to get it using StackTrace:

问题 I've three methods i.e. Method1,Method2 & Method3. Method1 is for downloading images from one site Method2 is for downloading images from 2nd site Method3 is for comparing images Method1 gets the list of image urls that is being added to list according to product id one by one i.e. there's a loop on a collection of multiple product ids then according to each product id I get a collection of images that I add to a list. Method1 downloads the images according to that list. Method2 is same as

问题 I'm currently making a game and I came across this annoying problem. Tried to google it but no luck so far. I have a class defined in its own file(code here is not of my game but a simplified one with same errors): package graf.grafika; public class MyClass { int number; } And the problem is in myMethod(Application stops unexpectedly): public class aktivnost extends Activity { MyClass[] myclass = new MyClass[5]; void myMethod() { //Error myclass[0].number = 1; } public void onCreate(Bundle

问题 I've created a textbox and want to reference it in a static methd. how can I do that? here;s my code private void Form1_Load(object sender, EventArgs e) { TextBox textbox2 = new TextBox(); textbox2.Text = "A"; } static void gettext() { textbox2.Text = "B"; //here is my problem } 回答1: You would need to pass it into the static method somehow, easiest option is to just expand the method signature to accept the textbox: static void gettext(TextBox textBox) { textBox.Text = "B"; //here is my

问题 I just watched a youtube tutorial called "many methods and instances". He made a program in which you enter something and it says "your first gf was _ ". But it was way too overcomplicated. First is the main class: import java.util.Scanner; public class MethodsInstances2 { public static void main(String args[]) { Scanner input = new Scanner(System.in); MethodsInstances object = new MethodsInstances(); System.out.println("Enter name of first gf here: "); String temp = input.nextLine(); object

问题 i wanted to test how much time is lost by putting code into methods instead of just calling it. To my surprise, the Method-Calls are faster and i ask myself: why? This is the code: The HObjects are part of the image processing library "Halcon" and are very commonly used with "out" in method calls, so dont worry about the horrible look ;-) static void Main(string[] args) { int runs = 900000; HObject hob1; HObject hob2; HObject hob3; HObject hob4; HObject hob5; HObject hob6; DateTime t1 =

问题 I have two instances of Plone running on a server - their locations are /usr/local/Plone/Inst1 and /usr/local/Plone/Inst2. I'm trying to setup external methods, but am having a difficult time figuring out where my "Extensions" folder should be placed. It seems that where ever I place it, the ZMI never sees it. I have tried: /usr/local/Plone/Extensions /usr/local/Plone/Inst1/Extensions ...and various other sub-folders within the "Inst1" directory. When I add an external method, I've tried

问题 With much assistance I have developed a method that makes anagrams and then adds them into an ArrayList . public void f(String s, String anagram, ArrayList<String> array) { if(s.length() == 0) { array.add(anagram); return; } for(int i = 0 ; i < s.length() ; i++) { char l = s.charAt(i); anagram = anagram + l; s = s.substring(0, i) + s.substring(i+l, s.length()); f(s,anagram,array); } } The problem is when I attempt to use this function to make ArrayList s in a loop that adds String s from one

问题 I was reading my old SCJP 6 book(author Kathy Sierra,Bert Bates) mentioned All the interface methods are implicitly public and abstract by default interface methods must not be static For example, if we declare interface Car { void bounce(); //no need of public abstract void setBounceFactor(int b); //no need of public abstract } What the compiler sees interface Car { public abstract void bounce(); public abstract void setBounceFactor(int b); } But from Java 8 , interfaces can now define