Question

I want to have a specific text if the typed age is below 12 years old. I thought of some covert to int, in some kind of way. But i can’t figure out how. Can someone help me out?

This is what i have:

<asp:TextBox ID="txtAge" runat="server" />
<br />
<asp:Button ID="btnSend" runat="server" Text="Send" onclick="btnSend_Click" />
<br />
<asp:Literal ID="litResult" runat="server" />

This is my code-behind:

protected void btnSend_Click(object sender, EventArgs e)
{
    if (txtAge.Text <= 12)
    {
        litResult.Text = "You are a child";
    }
}

Answer 1

The Text property of a TextBox is a string, so you need to convert the age to an int.

protected void btnSend_Click(object sender, EventArgs e)
{
    int age;
    if (int.TryParse(txtAge.Text, out age));
    {
        if (age <= 12)
            litResult.Text = "You are a child";
    }
    else
        litResult.Text = "Please enter a valid age";
}