private void Demo_Maskiner_Load(object sender, EventArgs e) { coboCountry.DropDownStyle = ComboBoxStyle.DropDownList; coboSalesRep.DropDownStyle = ComboBoxStyle.DropDownList; List <string> Demos = CTRC.DropDownDemoLoad(); List <string> AllSalesRep = new List <string>(); foreach (string X in Demos) { coboDemoMachines.Items.Add(X); } rbtnNo.Checked = true; coboCountry.Items.Add("Denmark"); coboCountry.Items.Add("Sweden"); CTRC.GetAllSalesRep(AllSalesRep); foreach (string s in AllSalesRep) { coboSalesRep.Items.Add(s); } }