I've got this code that's changing a picture and additional link with it. var imgSwap(pic, link){ $("#sampleimg") .load(function () { $(this).hide(); $('#indexPic').removeClass('loading'); $(this).fadeIn(500); }) .error(function () {}) .attr({src : picArray[5]});...
I have defined my JavaScript function as follows: function printCompanyName(company1, company2, company3, company4, company5) { document.write("<p>" + company1 + "</p>"); document.write("<p>" + company2 + "</p>"); document.write("<p>" + company3 + "</p>"); document.write("<p>" + company4 + "</p>"); document.write("<p>" + company5 + "</p...
Purely for interest, I am re-learning C after ... I don't know ... 15 - 20 years. I seem to recall that variable arguments were implemented as simple macros. Can anyone remember what they were? Edit: To clarify my question, I know they had the same name as va_list etc. but can you remember the actual macro definition? Will they st...
Hi, I'm using the iis7 URL Rewrite module and it's working fine, except for two things. Being new to this, I might be missing something obvious. 1) My URL gets converted from www.mysite.com/search.aspx?fName=John&sName=Smith to www.mysite.com/John/Smith. This works fine, but if I add a trailing / , a few images on the site disappear, w...
I have a Java method that takes 3 parameters, and I'd like it to also have a 4th "optional" parameter. I know that Java doesn't support optional parameters directly, so I coded in a 4th parameter and when I don't want to pass it I pass null. (And then the method checks for null before using it.) I know this is kind of clunky... but the o...
Using c# 4.0 -- building an interface and a class that implements the interface. I want to declare an optional parameter in the interface and have it be reflected in the class. So, I have the following: public interface IFoo { void Bar(int i, int j=0); } public class Foo { void Bar(int i, int j=0) { // do stuff } } ...
I am developing a Crystal Report in Visual Studio 2008. I am trying to implement optional parameters so that a user does not have to specify a value or range for a particular field. Essentially, this means there is no filtering done on that field if the user wishes. However, I can't seem to figure out how to do this. Does anyone have a...
so .Net 4 added named and optional params which are pretty sweet..I don't need to make as many 1 line overload methods. Will that work over WCF? ...
I have two overloaded methods, one with an optional parameter. void foo(string a) { } void foo(string a, int b = 0) { } now I call: foo("abc"); interestingly the first overload is called. why not the second overload with optional value set to zero? To be honest, I would have expect the compiler to bring an error, at least ...
C#4.0 obviously brings optional parameters (which I've been waiting for, for quite some time). However it seems that because only system types can be const that I cannot use any class/struct which I have created, as an optional param. Is there a some way which allows me to use a more complex type as an optional parameter. Or is this on...
If I have a constructor with say 2 required parameters and 4 optional parameters, how can I avoid writing 16 constructors or even the 10 or so constructors I'd have to write if I used default parameters (which I don't like because it's poor self-documentation)? Are there any idioms or methods using templates I can use to make it less te...
I am reading Effective C# by Bill Wagner. In Item 14 - Minimize Duplicate Initialization Logic, he shows the following example of using the new optional parameters feature in a constructor: public MyClass(int initialCount = 0, string name = "") Notice that he used "" instead of string.Empty. He comments: You'll note [in an example ...
I use GLib to parse some command-line options. The problem is that I want to make two of those options mandatory so that the program terminates with the help screen if the user omits them. My code looks like this: static gint line = -1; static gint column = -1; static GOptionEntry options[] = { {"line", 'l', 0, G_OPTION_ARG_INT,...
The following code fails to compile, producing a "Widget must be a non-abstract type with a public parameterless constructor" error. I would think that the compiler has all of the information it needs. Is this a bug? An oversight? Or is there some scenario where this would not be valid? public class Factory<T> where T : new() { publ...
As far as I know, the copy constructor must be of the form T(const T&) or T(T&). What if I wanted to add default arguments to the signature? T(const T&, double f = 1.0); Would that be standards compliant? ...
public void log(String msg, Color c = Color.black) { loggerText.ForeColor = c; loggerText.AppendText("\n" + msg); } This results in an error that c must be a compile-time constant. I've read up on this a little and most examples are dealing with strings and ints. I've figured out I can use the colorconver...
I'm having a problem with optional function parameter in C++ What I'm trying to do is to write function with optional parameter which is passed by reference, so that I can use it in two ways (1) and (2), but on (2) I don't really care what is the value of mFoobar. I've tried such a code: void foo(double &bar, double &foobar = NULL) {...
Does C# 4.0 allow optional out or ref arguments? ...
Suppose you have a method with the following signature: public void SomeMethod(bool foo = false, bool bar = true) { /* ... */ } When calling this method, is there a way to specify a value for bar and not foo? It would look something like... SomeMethod(_, false); ... which would translate to... SometMethod(false, false); ... at ...
In all programming languages supporting optional parameters that I have seen there is a imitation that the optional parameters must appear at the end of the declaration. No required parameters may be included after an optional item. What is the reason for that ? I guess it can be compiler/interpreter requirement. ...