How can we convert a string to an integer in C#?

1 year ago
Noah Thompson
1 minute

In C#, you can use the int.Parse() method or the int.TryParse() method to convert a string type to an int type.

  1. Utilize the int.Parse() method:
string str = "123";
int num = int.Parse(str);
  1. Utilize the int.TryParse() method:
string str = "123";
bool success = int.TryParse(str, out int num);
if (success)
{
    // 转换成功，num为转换后的int类型值
}
else
{
    // 转换失败，处理转换失败的逻辑
}

It is important to note that if a string cannot be properly converted to an int type, the int.Parse() method will throw a FormatException exception, while the int.TryParse() method will return false and set the output parameter to 0.

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