/C#/How to use combo box to find age in c#

How to use combo box to find age in c#

protected void btn_Click(object sender, EventArgs e)
    {
         // here you use your ddl,combobox or etc where age date is inserted
        DateTime dtStart = DateTime.Parse(txtDoB.Text);
        TimeSpan sp = DateTime.Now - dtStart;
        int year = "18";
        int days = 365;
        int total = year * days;

        if (sp.Days < total)
        {

            txtDoB.Text = "Not Valid";
            lblMess.Text = "You can not be under 18 years";
            lblMess.CssClass = "Errr";
            return;
        }
}

Similar codes

25 votes160 views4 answers
Unity movetowards
C#Unity
0 vote100 views3 answers
List cast<> c#
C#
0 vote126 views1 answer
Event trigger by code unity
C#Unity
1 vote148 views1 answer
How to allow user import image c#
C#
2 votes104 views1 answer
Get current computer name C#
C#
0 vote100 views1 answer
Button next for picturebox c#
C#
0 vote89 views1 answer
C# remove first line from textbox
C#
0 vote109 views1 answer
Oncollisionenter2d
C#
1 vote101 views1 answer
Rigidbody.addtorque
C#
0 vote102 views1 answer
Dynamics 365 create record c#
C#