erreur de conversion de type

Question

int age = txtAge.Text; 

Je reçois l'erreur:

Error 2 Cannot implicitly convert type 'string' to 'int' 

Answer 1

int age = int.Parse(txtAge.Text); 

Answer 2

Essayez

int age; 
bool result = Int32.TryParse(txtAge.Text, out age); 

if (result) 
{ 
    // Parse succeeded and get the result in age 
} 
else 
{ 
    // Parse failed 
} 

Voir Int32.TryParse Method (String, Int32)

The TryParse method is like the Parse method, except the TryParse method does not throw an exception if the conversion fails. It eliminates the need to use exception handling to test for a FormatException in the event that s is invalid and cannot be successfully parsed.

Answer 3

Bien sûr, vous pouvez » t, int et string sont deux types complètement différents. Cependant, la solution la plus simple est:

int age = Int32.Parse(txtAge.Text); 

Plus est sécurisé:

int age; 
Int32.TryParse(txtAge.Text, out age);