ComboBox：将文本添加到第 0 个索引

Question

我试图将 "Selection Option" 文本添加到 ComboBox 中的第 0 个索引，但它显示空白

public void BindDdlPartyAccount()
    {
        PartyAccount objDDlBind = new PartyAccount();
        List<PartyAccount> ListDdlParty = new List<PartyAccount>();
        ListDdlParty = objDDlBind.getDDlPartyDetails();
        objDDlBind.selectOption = "Select Option";
        objDDlBind.selectOptionId = 0;
        ListDdlParty.Insert(objDDlBind.selectOptionId, objDDlBind);
        ddlEditPartyAcc.DataSource = ListDdlParty;
        ddlEditPartyAcc.ValueMember = "PAId";
        ddlEditPartyAcc.DisplayMember = "name";
   }

Answer 1

您应该添加自定义对象类型

istDdlParty = objDDlBind.getDDlPartyDetails();
objDDlBind.name= "Select Option";