dropdownlist绑定了数据,还可以手动加项吗?

Question

如题
<asp:DropDownList ID="dl_ownername" runat="server" DataSourceID="SqlDataSource2"
                            DataTextField="ownername" DataValueField="ownername">
                            <asp:ListItem Value="%">全部</asp:ListItem>
                        </asp:DropDownList>没有显示手动加的项

Answer 1

AppendDataBoundItems="True"
设置这个属性

Answer 2

dl_ownername.Items.insert(0,"请选择");

Answer 3

当然可以呀,绑定完了,用ddl_XXX.Item.Insert();

Answer 4

dl_ownername.Items.insert(0,"全部");

Answer 5

DataSet ds=new DataSet();
ds=SqlHelper.ExecuteDataset("proc_GetName");
this.DropDownList1.DataSource=ds;
this.DropDownList1.DataTextField=ds.Tables[0].Columns["Name"].ToString(); this.DropDownList1.DataValueField=ds.Tables[0].Columns["NameID"].ToString();
this.DropDownList1.DataBind();
this.DropDownList1.Items.Insert(0,"请选择");

Answer 6

this.DropDownList1.Items.Insert(0,"请选择");