Question

i need a code, for registrationform.
The person that wants to registrate need to fill all textboxes.
i want that its working with :

        if (..........)
        {
            usernLbl.ForeColor = Color.Red;
            nameLbl.ForeColor = Color.Red;
            ageLbl.ForeColor = Color.Red;
            countryLbl.ForeColor = Color.Red;
            passwordLbl.ForeColor = Color.Red;
        }
        else
        {
        // save xml 
        }

Tnx

I solved it by doin this :

        if (string.IsNullOrEmpty(ageTxb.Text))
        {
            ageLbl.ForeColor = Color.Red; 
        }
        if (string.IsNullOrEmpty(usernameTxb.Text))
        {
            usernLbl.ForeColor = Color.Red;
        }
        if (string.IsNullOrEmpty(nameTxb.Text))
        {
            nameLbl.ForeColor = Color.Red;
        }
        if (string.IsNullOrEmpty(countryTxb.Text))
        {
            countryLbl.ForeColor = Color.Red;
        }
        if (string.IsNullOrEmpty(passwordTxb.Text))
        {
            passwordLbl.ForeColor = Color.Red;
        } 

Answer 1

private static bool NotEmpty(params TextBox[] textBoxes)
{
    bool valid = true;
    foreach(var box in textBoxes)
    {
        if (String.IsNullOrEmpty(box.Text))
        {
            box.ForeColor = Color.Red;
            valid = false;
        }
    }
    return valid;
}

So a sample call would be

if (NotEmpty(textBox1, textBox2, textBox3)
{
    //save xml
}