C# Programmatically make enum












-1














I'd like ask is there any method to make enum with string array.



for example, usually we make enum like this.



public enum Temp {
aa = 0,
bb,
cc,
dd
}


What I wish to know is, how to convert String array to enum programmatically.



String Temp = { aa, bb, cc, dd }


to above one ( String to enum ).



is it possible?



if then, how can I do this?










share|improve this question


















  • 1




    Please be very specific, Do you want to convert a string array to an enum array. or do you want create a new enum based on a string array? In the case of the later, it doesnt make any sense what-so-ever. how would you even write further code for it. What i am guessing you want, is maybe a Dictionary<string,int>
    – TheGeneral
    Nov 21 at 2:17








  • 3




    You can’t create an enum programmatically because an enum is created at compile time and your program doesn’t run until run time.
    – John Wu
    Nov 21 at 2:19






  • 3




    This feels like a XY Problem - meta.stackexchange.com/questions/66377/what-is-the-xy-problem . Why do you want to do this?
    – mjwills
    Nov 21 at 2:21






  • 1




    Dictionary<string,int> most likely, depending on your needs, example usage var myInt = myDict["aa"] or if(someValue == myDict[someKeyFormArray]) ect ect
    – TheGeneral
    Nov 21 at 2:24








  • 1




    Yes you can programmatically do this. You will have to look into System.CodDom theres a bunch of material that has to be covered so I didn't write a answer to the question.
    – Levon Ravel
    Nov 21 at 2:42
















-1














I'd like ask is there any method to make enum with string array.



for example, usually we make enum like this.



public enum Temp {
aa = 0,
bb,
cc,
dd
}


What I wish to know is, how to convert String array to enum programmatically.



String Temp = { aa, bb, cc, dd }


to above one ( String to enum ).



is it possible?



if then, how can I do this?










share|improve this question


















  • 1




    Please be very specific, Do you want to convert a string array to an enum array. or do you want create a new enum based on a string array? In the case of the later, it doesnt make any sense what-so-ever. how would you even write further code for it. What i am guessing you want, is maybe a Dictionary<string,int>
    – TheGeneral
    Nov 21 at 2:17








  • 3




    You can’t create an enum programmatically because an enum is created at compile time and your program doesn’t run until run time.
    – John Wu
    Nov 21 at 2:19






  • 3




    This feels like a XY Problem - meta.stackexchange.com/questions/66377/what-is-the-xy-problem . Why do you want to do this?
    – mjwills
    Nov 21 at 2:21






  • 1




    Dictionary<string,int> most likely, depending on your needs, example usage var myInt = myDict["aa"] or if(someValue == myDict[someKeyFormArray]) ect ect
    – TheGeneral
    Nov 21 at 2:24








  • 1




    Yes you can programmatically do this. You will have to look into System.CodDom theres a bunch of material that has to be covered so I didn't write a answer to the question.
    – Levon Ravel
    Nov 21 at 2:42














-1












-1








-1







I'd like ask is there any method to make enum with string array.



for example, usually we make enum like this.



public enum Temp {
aa = 0,
bb,
cc,
dd
}


What I wish to know is, how to convert String array to enum programmatically.



String Temp = { aa, bb, cc, dd }


to above one ( String to enum ).



is it possible?



if then, how can I do this?










share|improve this question













I'd like ask is there any method to make enum with string array.



for example, usually we make enum like this.



public enum Temp {
aa = 0,
bb,
cc,
dd
}


What I wish to know is, how to convert String array to enum programmatically.



String Temp = { aa, bb, cc, dd }


to above one ( String to enum ).



is it possible?



if then, how can I do this?







c# .net enums






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 21 at 2:14









Arphile

40512




40512








  • 1




    Please be very specific, Do you want to convert a string array to an enum array. or do you want create a new enum based on a string array? In the case of the later, it doesnt make any sense what-so-ever. how would you even write further code for it. What i am guessing you want, is maybe a Dictionary<string,int>
    – TheGeneral
    Nov 21 at 2:17








  • 3




    You can’t create an enum programmatically because an enum is created at compile time and your program doesn’t run until run time.
    – John Wu
    Nov 21 at 2:19






  • 3




    This feels like a XY Problem - meta.stackexchange.com/questions/66377/what-is-the-xy-problem . Why do you want to do this?
    – mjwills
    Nov 21 at 2:21






  • 1




    Dictionary<string,int> most likely, depending on your needs, example usage var myInt = myDict["aa"] or if(someValue == myDict[someKeyFormArray]) ect ect
    – TheGeneral
    Nov 21 at 2:24








  • 1




    Yes you can programmatically do this. You will have to look into System.CodDom theres a bunch of material that has to be covered so I didn't write a answer to the question.
    – Levon Ravel
    Nov 21 at 2:42














  • 1




    Please be very specific, Do you want to convert a string array to an enum array. or do you want create a new enum based on a string array? In the case of the later, it doesnt make any sense what-so-ever. how would you even write further code for it. What i am guessing you want, is maybe a Dictionary<string,int>
    – TheGeneral
    Nov 21 at 2:17








  • 3




    You can’t create an enum programmatically because an enum is created at compile time and your program doesn’t run until run time.
    – John Wu
    Nov 21 at 2:19






  • 3




    This feels like a XY Problem - meta.stackexchange.com/questions/66377/what-is-the-xy-problem . Why do you want to do this?
    – mjwills
    Nov 21 at 2:21






  • 1




    Dictionary<string,int> most likely, depending on your needs, example usage var myInt = myDict["aa"] or if(someValue == myDict[someKeyFormArray]) ect ect
    – TheGeneral
    Nov 21 at 2:24








  • 1




    Yes you can programmatically do this. You will have to look into System.CodDom theres a bunch of material that has to be covered so I didn't write a answer to the question.
    – Levon Ravel
    Nov 21 at 2:42








1




1




Please be very specific, Do you want to convert a string array to an enum array. or do you want create a new enum based on a string array? In the case of the later, it doesnt make any sense what-so-ever. how would you even write further code for it. What i am guessing you want, is maybe a Dictionary<string,int>
– TheGeneral
Nov 21 at 2:17






Please be very specific, Do you want to convert a string array to an enum array. or do you want create a new enum based on a string array? In the case of the later, it doesnt make any sense what-so-ever. how would you even write further code for it. What i am guessing you want, is maybe a Dictionary<string,int>
– TheGeneral
Nov 21 at 2:17






3




3




You can’t create an enum programmatically because an enum is created at compile time and your program doesn’t run until run time.
– John Wu
Nov 21 at 2:19




You can’t create an enum programmatically because an enum is created at compile time and your program doesn’t run until run time.
– John Wu
Nov 21 at 2:19




3




3




This feels like a XY Problem - meta.stackexchange.com/questions/66377/what-is-the-xy-problem . Why do you want to do this?
– mjwills
Nov 21 at 2:21




This feels like a XY Problem - meta.stackexchange.com/questions/66377/what-is-the-xy-problem . Why do you want to do this?
– mjwills
Nov 21 at 2:21




1




1




Dictionary<string,int> most likely, depending on your needs, example usage var myInt = myDict["aa"] or if(someValue == myDict[someKeyFormArray]) ect ect
– TheGeneral
Nov 21 at 2:24






Dictionary<string,int> most likely, depending on your needs, example usage var myInt = myDict["aa"] or if(someValue == myDict[someKeyFormArray]) ect ect
– TheGeneral
Nov 21 at 2:24






1




1




Yes you can programmatically do this. You will have to look into System.CodDom theres a bunch of material that has to be covered so I didn't write a answer to the question.
– Levon Ravel
Nov 21 at 2:42




Yes you can programmatically do this. You will have to look into System.CodDom theres a bunch of material that has to be covered so I didn't write a answer to the question.
– Levon Ravel
Nov 21 at 2:42












1 Answer
1






active

oldest

votes


















4














I would be curious what you would want to do with this, but you can create a new enum type at runtime.



    private static Type BuildEnum(string enumValues, string enumName)
{
AssemblyName aName = new AssemblyName("TempAssembly");
AssemblyBuilder ab = AppDomain.CurrentDomain.DefineDynamicAssembly(
aName, AssemblyBuilderAccess.RunAndSave);

var eb = ab.DefineDynamicModule(aName.Name, aName.Name + ".dll").DefineEnum(enumName, TypeAttributes.Public, typeof(int));

for (int i = 0; i < enumValues.Length; i++)
{
eb.DefineLiteral(enumValues[i], i);
}
return eb.CreateType();
}

var myEnum = BuildEnum(new string { "aa", "bb", "cc", "dd" }, "Temp");
var enumValues = Enum.GetValues(myEnum)





share|improve this answer

















  • 3




    This is clever, but I don't understand the value of doing this at run-time in the first place. I'd like the OP to explain why this is important to them.
    – Enigmativity
    Nov 21 at 3:08











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









4














I would be curious what you would want to do with this, but you can create a new enum type at runtime.



    private static Type BuildEnum(string enumValues, string enumName)
{
AssemblyName aName = new AssemblyName("TempAssembly");
AssemblyBuilder ab = AppDomain.CurrentDomain.DefineDynamicAssembly(
aName, AssemblyBuilderAccess.RunAndSave);

var eb = ab.DefineDynamicModule(aName.Name, aName.Name + ".dll").DefineEnum(enumName, TypeAttributes.Public, typeof(int));

for (int i = 0; i < enumValues.Length; i++)
{
eb.DefineLiteral(enumValues[i], i);
}
return eb.CreateType();
}

var myEnum = BuildEnum(new string { "aa", "bb", "cc", "dd" }, "Temp");
var enumValues = Enum.GetValues(myEnum)





share|improve this answer

















  • 3




    This is clever, but I don't understand the value of doing this at run-time in the first place. I'd like the OP to explain why this is important to them.
    – Enigmativity
    Nov 21 at 3:08
















4














I would be curious what you would want to do with this, but you can create a new enum type at runtime.



    private static Type BuildEnum(string enumValues, string enumName)
{
AssemblyName aName = new AssemblyName("TempAssembly");
AssemblyBuilder ab = AppDomain.CurrentDomain.DefineDynamicAssembly(
aName, AssemblyBuilderAccess.RunAndSave);

var eb = ab.DefineDynamicModule(aName.Name, aName.Name + ".dll").DefineEnum(enumName, TypeAttributes.Public, typeof(int));

for (int i = 0; i < enumValues.Length; i++)
{
eb.DefineLiteral(enumValues[i], i);
}
return eb.CreateType();
}

var myEnum = BuildEnum(new string { "aa", "bb", "cc", "dd" }, "Temp");
var enumValues = Enum.GetValues(myEnum)





share|improve this answer

















  • 3




    This is clever, but I don't understand the value of doing this at run-time in the first place. I'd like the OP to explain why this is important to them.
    – Enigmativity
    Nov 21 at 3:08














4












4








4






I would be curious what you would want to do with this, but you can create a new enum type at runtime.



    private static Type BuildEnum(string enumValues, string enumName)
{
AssemblyName aName = new AssemblyName("TempAssembly");
AssemblyBuilder ab = AppDomain.CurrentDomain.DefineDynamicAssembly(
aName, AssemblyBuilderAccess.RunAndSave);

var eb = ab.DefineDynamicModule(aName.Name, aName.Name + ".dll").DefineEnum(enumName, TypeAttributes.Public, typeof(int));

for (int i = 0; i < enumValues.Length; i++)
{
eb.DefineLiteral(enumValues[i], i);
}
return eb.CreateType();
}

var myEnum = BuildEnum(new string { "aa", "bb", "cc", "dd" }, "Temp");
var enumValues = Enum.GetValues(myEnum)





share|improve this answer












I would be curious what you would want to do with this, but you can create a new enum type at runtime.



    private static Type BuildEnum(string enumValues, string enumName)
{
AssemblyName aName = new AssemblyName("TempAssembly");
AssemblyBuilder ab = AppDomain.CurrentDomain.DefineDynamicAssembly(
aName, AssemblyBuilderAccess.RunAndSave);

var eb = ab.DefineDynamicModule(aName.Name, aName.Name + ".dll").DefineEnum(enumName, TypeAttributes.Public, typeof(int));

for (int i = 0; i < enumValues.Length; i++)
{
eb.DefineLiteral(enumValues[i], i);
}
return eb.CreateType();
}

var myEnum = BuildEnum(new string { "aa", "bb", "cc", "dd" }, "Temp");
var enumValues = Enum.GetValues(myEnum)






share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 21 at 2:48









bcwhims

626410




626410








  • 3




    This is clever, but I don't understand the value of doing this at run-time in the first place. I'd like the OP to explain why this is important to them.
    – Enigmativity
    Nov 21 at 3:08














  • 3




    This is clever, but I don't understand the value of doing this at run-time in the first place. I'd like the OP to explain why this is important to them.
    – Enigmativity
    Nov 21 at 3:08








3




3




This is clever, but I don't understand the value of doing this at run-time in the first place. I'd like the OP to explain why this is important to them.
– Enigmativity
Nov 21 at 3:08




This is clever, but I don't understand the value of doing this at run-time in the first place. I'd like the OP to explain why this is important to them.
– Enigmativity
Nov 21 at 3:08


















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