Simple addition string to int with C#

Question

I have knowledge in PHP and I want to learn C # language but I do not even do simple addition.

I want to get the value of a ComboBox, convert this value to int and be able to add another value

Despite the conversion done, I have an error : Can not convert type "int" to "string.

My code :

    private void btnValidate_click(object sender, RoutedEventArgs e)
    {
        int number = Test();
    }

    int Test()
    {
        string day = DayBirth.Text;

        int number;
        bool isNumeric = int.TryParse(day, out number);

        if (isNumeric == false)
        {
            Resultat1.Text = "This is not a number";
        }
        else
        {
            Resultat1.Text = number + 10;
        }

        return number;
    }

Thank you

D. Stewart · Accepted Answer · 2016-08-14 05:47:22Z

1

The issue is that Resultat1.Text is expecting a string, not an int. You can do

Resultat1.Text = (number+10).ToString();

and it should work.

answered Aug 14, 2016 at 5:47

D. Stewart

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1 Comment

Manudog Over a year ago

Thank you for your help it's ok ;)

Kahbazi · Accepted Answer · 2016-08-14 05:46:39Z

1

what you need to do is Converting your number to string after addition

Resultat1.Text = (number + 10).ToString;

answered Aug 14, 2016 at 5:46

Kahbazi

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Comments

Mostafiz · Accepted Answer · 2016-08-14 05:49:28Z

1

Text property accept string value not integer so after addition you have to convert it as string

Resultat1.Text = (number + 10).ToString();

answered Aug 14, 2016 at 5:49

Mostafiz

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