I derived a new class from DataGridViewTextBoxCell in my application and overrided the function GetFormattedValue In GetFormattedValue, I do some data binding (for example I read a ID from the database on the web and I show the corresponding name of that item from my local information which are pre-read in a datatable). However, some d...
Hello, I would like to override a constraint in hibernate validator. Here is my base class: @Entity @Table(name = "Value") @Inheritance(strategy = InheritanceType.SINGLE_TABLE) @DiscriminatorColumn(name = "valueType", discriminatorType = DiscriminatorType.STRING) public abstract class Value extends CommonTable { private String ...
Let's say I have a "Processor" interface exposing an event - OnProcess. Usually the implementors do processing thus I can safely subscribe on this event and be sure it will be fired. But one processor doesn't do processing - thus I want to prevent subscribers to subscibe on it. Can I do that? In other words in the code below I want the l...
Given the following C# class definitions and code: public class BaseClass { public virtual void MyMethod() { ...do something... } } public class A : BaseClass { public override void MyMethod() { ...do something different... } } public class B : BaseClass { public override void MyMethod() ...
We want our coders to NOT use DateTime.parse(). How can we block to use it? Can we override this, to hide from them? EDIT1 Actually we want to override this method, we have our own method which gets called this way: clsStrUtils.ISOToDate(). EDIT2 We do trust our programmers, but this is a specific situation. I don't want to restrict n...
I was doing some code review today and came across an old code written by some developer. It goes something like this public abstract class BaseControl { internal abstract void DoSomething(); } If you have a derived class within the same assembly, it would work public class DerivedControl : BaseControl { ...
There is a possible optimization I could apply to one of my methods, if I can determine that another method in the same class is not overridden. It is only a slight optimization, so reflection is out of the question. Should I just make a protected method that returns whether or not the method in question is overridden, such that a subcla...
I want to override Tostring() method for change some characters.Is it possible? If yes, How can I do this? ...
Hey there, ran into the following. Dont need it clarified but find it interesting, though. Consider: >>> class A: ... def __str__(self): ... return "some A()" ... >>> class B(A): ... def __str__(self): ... return "some B()" ... >>> print A() some A() >>> print B() some B() >>> A.__str__ == B.__str__ Fal...
Consider the following, only program body, syntax not correct: class super { func1();//the method which is to be be overridden } class sub1 extends super { func1(); } class sub2 extends sub1 { func1(); } class Main { main() } ...
I am trying to make text inside a transparent div have no opacity, aka be completely black: <div style="opacity:0.6;background:#3cc;"> <p style="background:#000;opacity:1">This text should be all black</p> </div> Is this possible to do with only CSS? Thanks in advance ...
In the following example I am able to create a virtual method Show() in the inherited class and then override it in the inheriting class. I want to do the same thing with the protected class variable prefix but I get the error: The modifier 'virtual' is not valid for this item But since I can't define this variable as virtual/ov...
I have two class named test in two different files,a.php and b.php for instance,the logic is like this: include('a.php'); $a = new test(); if($somcondition_is_met) { include('b.php'); $b = new test(); } Is there some trick to avoid Fatal error: Cannot redeclare class ? ...
Is there a way to make a class function unoverriddable? something like java's final keyword. i.e, any overriding class cannot override that method. ...
Hi everybody, I've a custom itemRenderer for my datagrid. To set the actual data I use the following method: override public function set data(side:Object):void{ ... } As soon as I use this function the cell doesn't show up any item Editor anymore. Why is that? When I remove this function the itemEditor is working but with the wro...
I have two traits, one extending the other, each with an inner class, one extending the other, with the same names: trait A { class X { def x() = doSomething() } } trait B extends A { class X extends super.X { override def x() = doSomethingElse() } } class C extends B { val x = new X() // here B.X i...
Hi I have implemented optimistic locking for concurrency situations. I have used the version property in the mapping files to link to a integer. My aim is that if a user tried to save an out-of-date object, she will be given the option to overwrite changes. I have easily managed to get the SaveOrUpdate to throw an exception, but how...
I have a base class "Parent" like this: using System; using System.Collections.Generic; using System.Text; namespace ConsoleApplication1 { class Parent { private int parentVirtualInt = -1; public virtual int VirtualProperty { get { return parentVirtualInt; ...
I am trying to do the following: public class character extends entity { public const type:int = CHARACTER; } public class entity extends Sprite { public const type:int = INVALID; public const INVALID:int = -1; public const CHARACTER:int = 1; } But the compiler throws: Error: A conflict exists with inherited definition dieEngine:e...
Hi guys, I want to override the validation_errors() method of the form helper in CodeIgniter for one controller only, so that it will display a single error message (as a sentence in plain english) instead of the detailed line item summary. I've tried defining a validation_errors() function in my controller, which is what I usually do w...