为什么无法获取gridview编辑状态下的新值

Question

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        this.GridView1.EditIndex = -1;
        this.bintNews();
        
        string newID = ((TextBox)this.GridView1.Rows[e.RowIndex].FindControl("t1")).Text.Trim();
        
        //string title = ((TextBox)this.GridView1.Rows[e.RowIndex].Cells[1].FindControl("textbox")).Text;
 
        //Response.Write(title);
        Response.Write(newID);
       
    }前台<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
                        ForeColor="#333333" GridLines="None" Height="148px" Width="584px" OnRowDataBound="GridView1_RowDataBound" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing" OnRowCancelingEdit="GridView1_RowCancelingEdit" OnRowUpdating="GridView1_RowUpdating" AllowPaging="True" OnPageIndexChanging="GridView1_PageIndexChanging" PageSize="5">
                        
                        <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
                        <RowStyle BackColor="#EFF3FB" />
                        <Columns>
                            <asp:BoundField DataField="ID" HeaderText="新闻编号" />
                            <asp:BoundField DataField="Title" HeaderText="标题" />
                            <asp:BoundField DataField="Content" HeaderText="内容" />
                            <asp:BoundField DataField="pubTime" HeaderText="发表时间" />
                            <asp:BoundField DataField="re" HeaderText="备注" />
                            <asp:BoundField DataField="Hits" HeaderText="点击数" />
                            <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                            <asp:TemplateField>
                                <ItemTemplate>
                                    &nbsp;
                                </ItemTemplate>
                                <EditItemTemplate>
                                    <asp:TextBox ID="t1" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"Title") %>'></asp:TextBox>
                               
                                </EditItemTemplate>
                            </asp:TemplateField>
                        </Columns>
                 
                        <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
                        <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
                        <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
                        <EditRowStyle BackColor="#2461BF" />
                        <AlternatingRowStyle BackColor="White" />
                    </asp:GridView>
问题：各位高手，怎么就是获取不到要编辑列的值啊。

Answer 1

你绑定的时候设置DataKeysName="字段" 然后通过DataKeys取

Answer 2

高手， string newID = e.NewValues["Title"].ToString() ; 
Response.Write(newID); 
this.GridView1.EditIndex = -1; 
this.bintNews(); 
报错 ：未将对象引用设置到对象的实例。

Answer 3

ui.UserName = ((TextBox)(this.GridViewUser.Rows[e.RowIndex].Cells[1].Controls[0])).Text.Trim();

Answer 4

string newID = ((TextBox)(this.GridView1.Rows[e.RowIndex].Cells[].Contrils[])).Text.Trim(); 

Answer 5

请问你的问题是怎么解决的？
我的问题和你的一样啊，我是做一个gridview，然后再页面上添加了一个按钮，要实现的功能是双击进行整行
编辑，点击按钮完成更新，但现在的问题就是去不到新值，更新不了。大侠，助人为乐，请问你是怎么解决的？

Answer 6

问题：      当GridView编辑状态获取新值时，往往获取的是修改前的值。我的分析：       很多时候我把数据绑定函数调用直接放在Page_Load()函数里，当GridView编辑状态获取新值时，往往获取的是修改前的值，这是因为页面加载先执行page_load()函数，数据绑定函数就会再次执行，这样GridView里的值就会又变成修改前的值，获取值时就是更改前的值。解决办法：      把数据绑定函数放在Page_Load()函数的if(!this.page.ispostback）里，这样获取的值就是更改后的值。获取GridView单元格值办法：在RowUpdating事件里获取第一个单元格内容((TextBox)(GridView.Rows[e.RowIndex].Cells[1].Controls[0])).Text