So, the web, and StackOverflow, have plenty of nice answers for how to bind a combobox to an enum property in WPF. But Silverlight is missing all of the features that make this possible :(. For example:
You can't use a generic EnumDisplayer-style IValueConverter that accepts a type parameter, since Silverlight doesn't support x:Type.
Y...
Greetings, everyone!
I have a c++ code, where the following enum is declared:
enum Some
{
Some_Alpha = 0,
Some_Beta,
Some_Gamma,
Some_Total
};
int array[Some_Total];
The values of Alpha, Beta and Gamma are sequential, and I gladly use the following cycle to iterate through them:
for ( int someNo = (int)Some_Alpha; someN...
Ok, I'm new at C++. I got Bjarne's book, and I'm trying to follow the calculator code.
However, the compiler is spitting out an error about this section:
token_value get_token()
{
char ch;
do { // skip whitespace except '\n'
if(!std::cin.get(ch)) return curr_tok = END;
} while (ch!='\n' && isspace(ch));
...
I am parsing some enum values from a text file. In order to simplify things I am using functions like the following:
(The sample code here uses C++/CLI but answers in C# are also welcome.)
bool TryParseFontStyle(String ^string, FontStyle% style){
try {
FontStyle ^refStyle = dynamic_cast<FontStyle^>(
Enum::Parse(FontStyle...
say we have a ui and in this ui we have a dropdown. this dropdown is filled with the translated values of an enum.
now, we have the possibility to sort by the int-value of the enum, by the name of the enum, and by the translated name of the enum.
but what if we want a different sorting than the 3 mentioned above. how to handle such a r...
I'm doing a D bridge to a C library, and this has come up with the C code using typedef'd enums that it refers to like a constant, but can name it for function arguments and the like. Example:
enum someLongNameThatTheCLibraryUses
{
A,
B,
}
Currently, I must refer to it like so:
someLongNameThatTheCLibraryUses.A;
But I wou...
Hello!
I am using templates to implement a range checked conversion from int to enum. It looks like this:
template<typename E>
E enum_cast(const int &source);
The template function placed more or less in the root-directoy of the project. When defining a new enum that is foreseen to be assigned values from a config file like this:
en...
So, I just hate using true/false as method arguments for "enabled"/"disabled". To freely quote Jeff: "I dislike it on a fundamental level".
I repeatedly find myself defining my own enums on every new project in different namespaces all over the place, like these:
public enum Clickability
{
Disabled,
Enabled
}
public enum Edita...
UPDATE: Disregard this question. I had an inadvertent import in my abstract class that was the same name as COLUMNS... Someone please delete.
I'm encountering a weird issue with Generics and Enum. Here are the relevant code:
public abstract class AbstractModel<E extends Enum<? extends E>>
{
protected abstract Object getValue(in...
Scala doesn't have type-safe enums like Java has. If I have a set of related constants then what is the best way in Scala to represent those constants?
...
Basically I'm writing my own version of a 'RoleProvider' and 'AuthorizeAttribute'. I've got an Enum (as a bit field) with a list of all possible roles:
namespace myProject.Global
{
[Flags]
enum Roles
{
Viewer = 1,
User = 2,
Admin = 4,
Superadmin = 8
}
}
My AuthorizeAttribute works simil...
I have the following code which throws an exception (detail in code comments below). I am merely trying to use an instance of an enum as part of the Where clause. I understand the message, but I don't understand why EF cannot parse an Int32 enum.
It works if I copy the enum to an Int32 and then filter on that, but it seems very messy.
...
Which is the appropriate (more readable) way of naming enumerator? will you consider:
enum FilterOperators
{
IsEqual,
Contains,
StartsWith
}
class QueryFilter
{
FilterOperators Operator{get;set;}
}
var filter = new QueryFilter();
filter.Operator = FilterOperators.IsEqual;
Or is this preferable
enum FilterOperatorT...
Hi,
I have an enumeration like
Enum Complexity
{
NotSoComplex,
LittleComplex,
Complex,
VeryComplex
}
And I want to use it in a dropdown list, but don't want to see such Camel names in list (looks really odd for users). Instead I would like to have in normal wording, like
Not so complex
Little complex (etc)
Also, my applicat...
What is the reason behind C# not allowing type constraints on Enum's? I'm sure there is a method behind the madness, but I'd like to understand why it's not possible.
Below is what I would like to be able to do (in theory).
public static T GetEnum<T>(this string description) where T : Enum
{
...
}
...
Consider this:
[Flags]
enum Colors
{
Red=1,
Green=2,
Blue=4
}
Colors myColor=Colors.Red|Colors.Blue;
Currently, I'm doing it as follows:
int length=myColors.ToString().Split(new char[]{','}).Length;
But I hope there is a more efficient way of finding the length, maybe based on bitset operations.
Please, if possible, p...
According to my code a=1, b=2, c=3 etc. I thought the flag would make a=1, b=2, c=4, etc
[Flags]
public enum someEnum { none, a, b, c, d, e, f, }
How do i get what i intended(c=4, e=8)? and what does the [Flags] mean above?
...
why doesn't this compile:
enum E { a, b}
typedef struct { int i; E e; } S;
int main(){return 0;}
I get different errors on different system.
...
public enum FrameStatus
{
NotReport = 0,
NormalStatus = 1,
NotNormalstatus = 2
}
but alway FrameStatus.NormalStatus how?
public FrameStatus FrameReportStatus(int Framid, string Timebet)
{
foreach (FrameCam fc in al)
{
if (fc.Timebet == Timebet && fc.IdFrame == Framid)
{
if ((int)fc.status...
Let's say I have this enum:
[Flags]
enum Letters
{
A = 1,
B = 2,
C = 4,
AB = A | B,
All = A | B | C,
}
To check if for example AB is set I can do this:
if((letter & Letters.AB) == Letters.AB)
Is there a simpler way to check if any of the flags of a combined flag constant are set than the following?
if((let...