In a variable I keep a number that is in my Oracle DB can be 236578898 but I just need to know if it brings the 2365 to perform an operation, account1 is where I keep the number
if (int.Parse(cuenta1) == 2365) {
//int valor1 = Int.Parse(TBRete.Text) + Int.Parse(TBRetenAsum.Text) - Int.Parse(textBox4.Text);
//TBTotal1.Text = valor1.ToString();
} else {
}
Assuming that the variable to verify is of type string , you can use StartsWith :
Example:
string variable_a_validar = "236578898";
if (variable_a_validar.StartsWith("2365"))
{
// Agregue aquí la lógica.
}
If you are interested in validating both, that is at the beginning and that contains the number completely, I recommend using the IndexOf by which it is necessary to convert int to string .
string c = cuenta1;
if(c.IndexOf("2365") == 0)
{
// Ejecutamos la secuencia de instrucciones.
}
I hope I help you.
Greetings.