Assigning null value to float or int type variable in C#

[punitshrivastava]

Hi to All,
I am Punit Shrivastava .I am working on Asp.net with C#.i am new in C#.I want to assign null or blank to a variable which is of float or int type.Please suggest me what i do.
Thanks & Regards.
Punit Shrivastava.

[r035198x]

Hi to All,
I am Punit Shrivastava .I am working on Asp.net with C#.i am new in C#.I want to assign null or blank to a variable which is of float or int type.Please suggest me what i do.
Thanks & Regards.
Punit Shrivastava.

Is the variable a nullable type?

[Plater]

You cannot specifically asign a valuetype a null value.

int a;
 

is as close as you can get to a null value for it.

You can use a predefined value:

int a=int.MinValue;
 

Or just start with a zero:

int a=0;
 

[r035198x]

You cannot specifically asign a valuetype a null value.

Unless if the value type is a nullable type.

For each non-nullable value type T there is a corresponding nullable type T?, which can hold an additional value null. For instance, int? is a type that can hold any 32 bit integer or the value null.

[Plater]

Unless if the value type is a nullable type.

ValueTypes aren't nullable, the ValueType? is no longer a ValueType but the other type (can't think of the name, it's what classes are. ObjectType?).
I think that is what the difference between say "double" and "Double" is?

[r035198x]

ValueTypes aren't nullable, the ValueType? is no longer a ValueType but the other type (can't think of the name, it's what classes are. ObjectType?).
I think that is what the difference between say "double" and "Double" is?

Nullable types are value types.
There are four types of value types in C# (Simple types, Enum types, Struct types and Nullable types).
Remember everything is an object. There was no need for making nullable types reference types since their size is always known before hand anyway.

[Plater]

Perchance I have just been schooled.