Net assign null to int

I am working on Asp. I want to assign null or blank to a variable which is of float or int type. Please suggest me what i do. Punit Shrivastava. Follow Post Reply. Is the variable a nullable type? Plater 7, Expert 4TB. You cannot specifically asign a valuetype a null value. Expand Select Wrap Line Numbers. Unless if the value type is a nullable type. For each non-nullable value type T there is a corresponding nullable type T?

For instance, int? ValueTypes aren't nullable, the ValueType? I think that is what the difference between say "double" and "Double" is? Nullable types are value 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.

AddFormError e. DatabaseInstance; return db. Friday, June 15, PM. User posted You do not have to explicitly add "null" into a column if it is nullable. User posted You have a problem with database configuration.

User posted So you are saying that you are sure that the categoriaId column is nullable? If that is the case, the method signature might need to be adjusted: protected void foo int? Add " categoriaId" categoriaId?? User posted As AceCorban said, so long as your database column accepts null values, you need to pass DBNull. IsNullOrEmpty s? Saturday, June 16, AM. User posted bar is a string. User posted extension methods.

User posted Thank you for answer. User posted Sorry, but I doesn't explained my situation in a clearer way. User posted Hi everyone. Thank you so much! User posted Just another doubt about the Mike's example.

User posted Ok thank you. Now I lernt one more thing: extension methods. Vadim Martynov 6, 5 5 gold badges 29 29 silver badges 39 39 bronze badges. A J A J 87 7 7 bronze badges.

Timesaday or just public static int? WriteLine Timesaday. HasValue ; Console. Amadeu Antunes Amadeu Antunes 1 1 gold badge 8 8 silver badges 28 28 bronze badges. Declare you integer variable as nullable eg: int? Francis Tchatchoua Francis Tchatchoua 65 2 2 silver badges 9 9 bronze badges. Use Null. El Belo El Belo 1. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog.

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