overriding | 易学教程

How to override the admin template file in magento?

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I need to override the "adminhtml/sales/order/create/items/grid.phtml" file to display some custom text under each item while creating new order from admin. I want this to be done through custom module. Anyone can suggest how to override the admin template files? Any help is really appreciated davidselo I Recommend you that create a new template and add new design in your module with the layout update for the adminhtml section. For example: In your config.xml of your custom extension you can update the layout of adminhtml with: <adminhtml> <layout> <updates> <adminhtml> <file>yourcustomlayout

How to unhide an overriden function?

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Suppose I have my own function named zeros on the Matlab path. Now I want to call the built-in zeros . How can I do that? sitic Use the builtin function: builtin(function, arg1, ..., argN) In your case e.g.: builtin('zeros', 50) 来源： https://stackoverflow.com/questions/18205644/how-to-unhide-an-overriden-function

java - checked exception for 'throws' in overridden method

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问题 I was practicing exception handling mechanisms with method overriding in java...My code is as follows: class base { void show() { System.out.println("in base class method"); } } class derived extends base { void show() throws IOException { System.out.println("in derived class method"); throw new IOException(); } } class my { public static void main(String[] args) { try { base b = new derived(); b.show(); } catch (IOException e) { System.out.println("exception occurred at :" + e); } } }

Determine if Equals() is an override?

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I have an instance of Type (type). How can I determine if it overrides Equals()? private static bool IsObjectEqualsMethod(MethodInfo m) { return m.Name == "Equals" && m.GetBaseDefinition().DeclaringType.Equals(typeof(object)); } public static bool OverridesEqualsMethod(this Type type) { var equalsMethod = type.GetMethods() .Single(IsObjectEqualsMethod); return !equalsMethod.DeclaringType.Equals(typeof(object)); } Note that this reveals whether object.Equals has been overridden anywhere in the inheritance hierarchy of type . To determine if the override is declared on the type itself, you can

override equals method to compare more than one field in java

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What is the best way to override equals method in java to compare more than one field? For example, I have 4 objects in the class, o1, o2, o3, o4 and I want compare all of them with the passed object to the equals method. if (o1 != null && o2 != null && o3 != null && o4 != null && obj.o1 != null && obj.o2 != null && obj.o3 != null && obj.o4 != null && o1.equals(obj.o1) && o2.equals(obj.o2) && o3.equals(obj.o3) && o4.equals(obj.o4)) { do something } The problem with this code is that it's not clear and can't be modified easily specially if we have more fields. Is there a better way to achieve

How to override (re-implement) a member function in QFileSystemModel

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问题 I've been struggling with this for a while. Qt's QFileSystemModel is really slow when fetching several hundred files because of a really bad icon fetching algorithm. I want to completely disable icons. They are fetched in QFileSystemModel::data method which is not virtual (the source of QFileSystemModel is available here: http://qt.gitorious.org/qt/qt/blobs/4.7/src/gui/dialogs/qfilesystemmodel.cpp) This is the code I'm trying to run: class FileModel : public QFileSystemModel { using

How to unhide an overriden function?

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问题 Suppose I have my own function named zeros on the Matlab path. Now I want to call the built-in zeros . How can I do that? 回答1: Use the builtin function: builtin(function, arg1, ..., argN) In your case e.g.: builtin('zeros', 50) 来源： https://stackoverflow.com/questions/18205644/how-to-unhide-an-overriden-function

How to override the admin template file in magento?

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问题 I need to override the "adminhtml/sales/order/create/items/grid.phtml" file to display some custom text under each item while creating new order from admin. I want this to be done through custom module. Anyone can suggest how to override the admin template files? Any help is really appreciated 回答1: I Recommend you that create a new template and add new design in your module with the layout update for the adminhtml section. For example: In your config.xml of your custom extension you can

HOWTO access the method declared in the parent class?

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问题 I wonder whether it's possible to access a method declared in a parent class, which has been overrided (Sorry for my English if I make any mistakes). The code snippet: #import <stdio.h> #import <objc/Object.h> @interface Parent : Object -(void) message; @end @implementation Parent -(void) message { printf("\nParent\n"); } @end @interface Child : Parent //-(void) message; @end @implementation Child -(void) message { printf("\nChild\n"); } @end int main(int argc, const char* argv[]) { Parent* p

Override default look and feel Java

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I want to override java look and feel. I just want to show the buttons differently. I want all the features of Windows Look and Feel but only buttons differently. I hope you get my point. Color color = new Color(220, 220, 220, 200); UIManager.put("OptionPane.background", color); UIManager.put("Panel.background", color); UIManager.put("Button.foreground", new Color(255, 255, 255, 255)); List<Object> gradients = new ArrayList<Object>(5); gradients.add(0.00f); gradients.add(0.00f); gradients.add(new Color(0xC1C1C1)); gradients.add(new Color(0xFFFFFF)); gradients.add(new Color(0x5C5D5C));