GridView控件的EditItemTemplate不好用，怎么解决？帮我看看错在哪里了，谢谢！

Question

<EditItemTemplate> 
                        <asp:TextBox ID="TextBox2" runat="server" Width="221px" Text=' <%# Bind("f_name") %>'> </asp:TextBox> 
                    </EditItemTemplate> 
这不是有内容吗，为何说是空的？请明示，小弟刚学asp.net,谢谢

Answer 1

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" OnSelectedIndexChanged="GridView1_SelectedIndexChanged" Height="145px" Width="335px">
            <Columns>
                <asp:TemplateField HeaderText="编码">
                    <EditItemTemplate>
                        <asp:Label ID="Label1" runat="server" Text=' <%# Bind("f_id") %>'> </asp:Label>
                    </EditItemTemplate>
                    <ItemTemplate>
                        <asp:Label ID="Label1" runat="server" Text=' <%# Bind("f_id") %>'> </asp:Label>                        
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="姓名">
                    <EditItemTemplate>
                        <asp:TextBox ID="TextBox2" runat="server" Width="221px" Text=' <%# Bind("f_name") %>'> </asp:TextBox>
                    </EditItemTemplate>
                    <ItemTemplate>
                        <asp:Label ID="Label3" runat="server" Text=' <%# Bind("f_name") %>'> </asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView> 

Answer 2

gridview加上 DataKeyNames="主键"

Answer 3

加了也没反应
在生成的页面中查看源代码如下：
<table cellspacing="0" rules="all" border="1" id="GridView1" style="height:145px;width:335px;border-collapse:collapse;">
<tr>
<th scope="col">编码</th><th scope="col">姓名</th>
</tr><tr>
<td>
                        <span id="GridView1_ctl02_Label1">001</span>
                        <span id="GridView1_ctl02_Label2">Hello world</span>
                    </td><td>
                        <span id="GridView1_ctl02_Label3">Hello world</span>
                    </td>
</tr>
</table>TextBox根本未显示，这是为何？

Answer 4

<asp:TemplateField HeaderText="编码"> 
                    <EditItemTemplate> 
                        &nbsp; ？？？ 
                    </EditItemTemplate> 
                    <ItemTemplate> 
                        <asp:Label ID="Label1" runat="server" Text=' <%# Bind("f_id") %>'> </asp:Label> 
                        <asp:Label ID="Label2" runat="server" Text=' <%# Bind("f_name") %>'> </asp:Label> 
                    </ItemTemplate> 
                </asp:TemplateField>模板列里的文本框被你删除了？加上去，再设置要绑定的列名称。

Answer 5

看名称里的EditItemTemplate，那个是有的

Answer 6

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="" OnSelectedIndexChanged="GridView1_SelectedIndexChanged" Height="145px" Width="335px">
            <Columns>
                <asp:TemplateField HeaderText="编码">
                    <ItemTemplate>
                        <asp:Label ID="Label1" runat="server" Text='<%# Bind("f_id") %>'></asp:Label>
                        <asp:Label ID="Label2" runat="server" Text='<%# Bind("f_name") %>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="姓名">
                    <EditItemTemplate>
                        <asp:TextBox ID="TextBox2" runat="server" Width="221px" Text='<%# Bind("f_name") %>'></asp:TextBox>
                    </EditItemTemplate>                    <ItemTemplate>
                        <asp:Label ID="Label3" runat="server" Text='<%# Bind("f_name") %>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>

Answer 7

protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            DataTable dt = new DataTable();
            DataColumn dc1 = new DataColumn("f_name");
            dc1.Caption = "姓名";
            dt.Columns.Add(dc1);
            DataColumn dc2 = new DataColumn("f_id");
            dc2.Caption = "编码";
            dt.Columns.Add(dc2);
            DataRow dr1 = dt.NewRow();
            dr1["f_name"] = "Hello world";
            dr1["f_id"] = "001";
            dt.Rows.Add(dr1);
            GridView1.DataSource = dt;
            GridView1.DataBind();
        } 
    }<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"  Width="335px">
            <Columns>
                <asp:TemplateField HeaderText="编码">
                    <EditItemTemplate>
                        <asp:Label ID="Label1" runat="server" Text=' <%# Bind("f_id") %>'> </asp:Label>
                    </EditItemTemplate>
                    <ItemTemplate>
                        <asp:Label ID="Label1" runat="server" Text=' <%# Bind("f_id") %>'> </asp:Label>                       
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="姓名">
                    <EditItemTemplate>
                        <asp:TextBox ID="TextBox2" runat="server" Width="221px" Text=' <%# Bind("f_name") %>'> </asp:TextBox>
                    </EditItemTemplate>
                    <ItemTemplate>
                        <asp:Label ID="Label3" runat="server" Text=' <%# Bind("f_name") %>'> </asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>我试过没问题

Answer 8

protected void Page_Load(object sender, EventArgs e)
    { 
        
        if (!IsPostBack)
        {
            gvDataBind();
        } 
    }
    public void gvDataBind()
    {
        DataTable dt = new DataTable();
        DataColumn dc1 = new DataColumn("f_name");
        dc1.Caption = "姓名";
        dt.Columns.Add(dc1);
        DataColumn dc2 = new DataColumn("f_id");
        dc2.Caption = "编码";
        dt.Columns.Add(dc2);
        DataRow dr1 = dt.NewRow();
        dr1["f_name"] = "Hello world";
        dr1["f_id"] = "001";
        dt.Rows.Add(dr1);
        GridView1.DataSource = dt;
        GridView1.DataBind();
    }
    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        GridView1.EditIndex = e.NewEditIndex;
        gvDataBind();
    }
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        GridView1.EditIndex = -1; gvDataBind();
    }<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="f_id"
                OnRowEditing="GridView1_RowEditing" OnRowCancelingEdit="GridView1_RowCancelingEdit">
                <Columns>
                <asp:BoundField DataField="f_id"  Visible="false"/>
                <asp:BoundField DataField="f_name" Visible="false" />
                    <asp:TemplateField HeaderText="编码">
                    <EditItemTemplate>
                        <asp:Label ID="Label1" runat="server" Text=' <%# Bind("f_id") %>'> </asp:Label>
                    </EditItemTemplate>
                    <ItemTemplate>
                        <asp:Label ID="Label1" runat="server" Text=' <%# Bind("f_id") %>'> </asp:Label>                     
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="姓名">
                    <EditItemTemplate>
                        <asp:TextBox ID="TextBox2" runat="server" Width="221px" Text=' <%# Bind("f_name") %>'> </asp:TextBox>
                    </EditItemTemplate>
                    <ItemTemplate>
                        <asp:Label ID="Label3" runat="server" Text=' <%# Bind("f_name") %>'> </asp:Label>
                    </ItemTemplate>
                </asp:TemplateField> 
                   <asp:CommandField ShowEditButton="true" />
                </Columns>
            </asp:GridView>