请问gridview如何显示多列数据 含代码

Question

gridview右上角有个黑色的小三角行 
点击编辑列  
把左下角的那个自动列的勾去掉   自己添加  想加多少就加多少
c简单

Answer 1

补一下基础吧
<asp:GridView ID="gvStaff" runat="server" AutoGenerateColumns="False" 
            Width="80%" AllowPaging="True" OnPageIndexChanging="gvStaff_PageIndexChanging" 
            OnRowEditing="gvStaff_RowEditing" OnRowDeleting="gvStaff_RowDeleting" 
            OnRowUpdating="gvStaff_RowUpdating" SkinID="GridView" DataKeyNames="empId,empName" 
            OnRowCancelingEdit="gvStaff_RowCancelingEdit" 
            ondatabinding="gvStaff_DataBinding" >
        <Columns>
            <asp:BoundField DataField="empName" HeaderText="姓名" />
             <asp:TemplateField HeaderText="机组">
                    <EditItemTemplate>
                        <asp:DropDownList ID="ddlMachine" runat="server" Width="100px">
                        </asp:DropDownList>
                        <asp:HiddenField ID="hdfMachineId" runat="server" Value='<%# Eval("machineId")%>'/>
                    </EditItemTemplate>
                    <ItemTemplate>
                        <asp:Label ID="lbMachineName" runat="server" Text='<%# Eval("machineName")%>'></asp:Label>
                    </ItemTemplate>
               </asp:TemplateField>
            <asp:TemplateField HeaderText="编辑">
                    <EditItemTemplate>
                        <asp:LinkButton ID="lbtnUpdate" runat="server" CommandName="Update" Style="position: relative" CausesValidation="False">更新</asp:LinkButton>
                        <asp:LinkButton ID="lbtnCancel" runat="server" CommandName="Cancel" Style="position: relative" CausesValidation="False">取消</asp:LinkButton>
                    </EditItemTemplate>
                    <ItemTemplate>
                        <asp:LinkButton ID="lbtnEdit" runat="server" CommandName="Edit" Style="position: relative" CausesValidation="False">编辑</asp:LinkButton>
                    </ItemTemplate>
                    <ItemStyle HorizontalAlign="Center" />
                    <HeaderStyle HorizontalAlign="Center" />
                </asp:TemplateField>
                <asp:TemplateField HeaderText="删除">
                        <ItemTemplate>
                            <asp:LinkButton ID="lbtnDel" runat="server"　CommandName="Delete" OnClientClick="return confirm('确认要删除吗？');" CausesValidation="False">删除</asp:LinkButton>
                        </ItemTemplate>
                <ItemStyle HorizontalAlign="Center" />
                    <HeaderStyle HorizontalAlign="Center" />
                    <FooterStyle HorizontalAlign="Center" />
             </asp:TemplateField>
        </Columns>
    </asp:GridView>  protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack) 
        {            this.gvStaff.DataBind();
        }
    }
protected void gvStaff_DataBinding(object sender, EventArgs e)
    {
        this.gvStaff.DataSource = 你自己的数据集;
    }