enum Gun 
{ 
   ShortGun, 
   MachineGun, 
   Rifle = 10 
} 

string str; 
str = Gun.Rifle.ToString();        // Rifle 
str = Gun.Rifle.ToString("D");     // 10 
str = Gun.Rifle.ToString("X");     // 0000000A

    enum enmFuncSets
    {
        fsNotFunc,
        fsReadOnly
        //...
    }
    private void button1_Click(object sender, EventArgs e)
    {
        string Per = cp.GetPowerModelName(LoginID, ModelName);
        enmFuncSets func = (enmFuncSets)Enum.Parse(typeof(enmFuncSets), Per);

        switch (func)
        {

            case enmFuncSets.fsNotFunc:

                ClientScript.RegisterStartupScript(this.GetType(), "GetPow", " window.parent.main.location = 'VoidPower.aspx';", true);
                break;
            case enmFuncSets.fsReadOnly:
                Gv.Columns[ColIndex].Visible = false;
                break;
            default:
                ClientScript.RegisterStartupScript(this.GetType(), "GetPow", " window.parent.main.location = 'VoidPower.aspx';", true);
                break;

        } 
    }