How to link IF specific object from combobox is picked then do something

Question

Class 1

 public static class DatabaseDeformacijaArmature
        {
            public static NovaDeformacijaArmature[] GetAllDeformacijaCelika()
            {
                return new NovaDeformacijaArmature[]
                {
                     new NovaDeformacijaArmature
                     {
                         DeformacijaArmature = "20 %",
                         epsilonCelika = 20.0
                     },
                     new NovaDeformacijaArmature
                     {
                         DeformacijaArmature = "10 %",
                         epsilonCelika = 10.0
                     },
                     new NovaDeformacijaArmature
                     {
                         DeformacijaArmature = "5 %",
                         epsilonCelika = 5.0
                     }

                };
            }

Class 2

     var deformacijaCelika = DatabaseDeformacijaArmature.GetAllDeformacijaCelika();

                deformacijaCelikaComboBox.Items.AddRange(deformacijaCelika);


 private void deformacijaCelikaComboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            NovaDeformacijaArmature selectedDeformacija = deformacijaCelikaComboBox.SelectedItem as NovaDeformacijaArmature;

                if 
       }

How to set if DeformacijaArmature = "20 %" is picked then do something... then again if 10%, do same "something" as for 20%. Same thing for 5%

that something will be written below.. thank you in advance

Answer 1

Something like this?

private void deformacijaCelikaComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
    double selected = ((NovaDeformacijaArmature)deformacijaCelikaComboBox.SelectedItem).epsilonCelika;

    if (selected == 20.0)
    {
        //do stuff
    }
    else if (selected == 10.0)
    {
        //do stuff
    }
    else if (selected == 5.0)
    {
        //do stuff
    }
}

Alternative use the class:

public class NovaDeformacijaArmature
{
    public double epsilonCelika { get; set; }

    public override string ToString() //This will be used when rendered by the combobox
    {
        return string.Format("{0:N0} %", epsilonCelika);
    }
}