Question

I have this:

protected void Page_Load(object sender, EventArgs e)
{
   nome_Txt.Text = Profile.dados_pessoais.nome;
}

protected void save_Click(object sender, EventArgs e)
{
   Profile.dados_pessoais.nome = nome_Txt.Text;
}

If Profile.dados_pessoais.nome is empty, nome_txt.Text is empty too. When I change nome_Txt.Text to teste for example, when I click on the button nome_Txt.Text is empty.
What am I doing wrong?

Answer 1

The Page_Load event run before the button click event so you always assign the text box to empty value.

To solve this, don’t populate the textbox when you are in a Postback:

protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
        nome_Txt.Text = Profile.dados_pessoais.nome;
    }
} 

As also stated in a comment, you probably have to save the profile after changing it otherwise it won’t be saved when you next load the page:

protected void save_Click(object sender, EventArgs e)
{
    Profile.dados_pessoais.nome = nome_Txt.Text;
    Profile.Save()
}