c# Object Comparison fails

Question

I have two objects of type SqlServer.Smo.Column . If I try to compare one property of both

ColumnaOrigen.Properties["DataType"].Value != ColumnaDestino.Properties["DataType"].Value

It return true even both values are numeric .

In the debugger the type showed is object{string} ; the same happens with other datatypes such as object{bool}

1. Why does this happen?

2. How can I compare those values to get the right answer?

Answer 1

1- Why this happens ?

Because you are not comparing values of the variables, but their references. Since both variables are object , == calls Object.ReferenceEquals .

2- How can I do to compare those values to get the right answer ?

If both types are string , cast them and compare them as strings.

string a = ColumnaOrigen.Properties["DataType"].Value as string;
string b = ColumnaDestino.Properties["DataType"].Value as string;

if (!string.Equals(a, b))
{ }