How to set null value to int in c

Question

int value 0   if  value    0        value   null      How can I set value to null above   Any help will be appreciated

User · Answer

You cannot set an int to null  Use a nullable int  int   instead   int  value   null

User · Answer

int does not allow null  use-  int  value   0     or use    Nullable lt int gt  value

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int   index   null   public int Index                       get                               if  index HasValue     Check for value                     return index Value    Return value if index is not  null                  else return 777     If value is  null  return 777 or any other value                           set   index   value

User · Answer

In  Net  you cannot assign a null value to an int or any other struct  Instead  use a Nullable lt int gt   or int  for short   int  value   0   if  value    0        value   null      Further Reading   Nullable Types  C  Programming Guide

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Declare you integer variable as nullable eg  int  variable 0  variable null

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public static int  Timesaday   get  set      null    OR    public static Nullable lt int gt  Timesaday   get  set      or   public static int  Timesaday   null    or    public static int  Timesaday   or just    public static int  Timesaday   get  set           static void Main string   args              Console WriteLine Timesaday    null           you also can check using       Console WriteLine Timesaday HasValue            Console ReadKey            The null keyword is a literal that represents a null reference  one that does not refer to any object   In programming  nullable types are a feature of the type system of some programming languages which allow the value to be set to the special value NULL instead of the usual possible values of the data type   https   docs microsoft com en-us dotnet csharp language-reference keywords null https   en wikipedia org wiki Null

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Additionally  you cannot use  null  as a value in a conditional assignment  e g     bool testvalue   false  int  myint    testvalue    true    1234   null    FAILS with  Type of conditional expression cannot be determined because there is no implicit conversion between  int  and   lt null gt     So  you have to cast the null as well    This works   int  myint    testvalue    true    1234    int  null

User · Answer

Use Null NullInteger ex  private int  ReservationID   Null NullInteger

[c#] How to set null value to int in c#?

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