gridview中嵌套Imagebutton按钮问题，急！！！！

Question

在gridview中嵌套一个imagebutton按钮，当点击按钮的时候怎样获取该行的主键值
请各位尽量讲述的详细一些，最好附带示例代码
谢谢

Answer 1

<asp:GridView ID="grdvItem" runat="server" BorderWidth="1px" CellPadding="0" AutoGenerateColumns="False" Width="100%"    OnRowDeleting="grdvItem_RowDeleting">
                                <Columns>
                                    <asp:BoundField DataField="ITEMID" HeaderText="编号" ReadOnly="True">
                                        <ItemStyle HorizontalAlign="Center" />
                                        <HeaderStyle HorizontalAlign="Center" Width="5%" />
                                    </asp:BoundField>
                                    <asp:BoundField DataField="ITEMNAME" HeaderText="栏目名称">
                                        <ItemStyle HorizontalAlign="Center" />
                                        <HeaderStyle HorizontalAlign="Center" Width="20%" />
                                    </asp:BoundField>
                                    <asp:BoundField DataField="ITEMDESC" HeaderText="栏目描述">
                                        <ItemStyle HorizontalAlign="Left" />
                                        <HeaderStyle HorizontalAlign="Center" Width="40%" />
                                    </asp:BoundField>
                                    <asp:BoundField DataField="ITEMORDER" HeaderText="栏目顺序">
                                        <ItemStyle HorizontalAlign="Center" />
                                        <HeaderStyle HorizontalAlign="Center" Width="10%" />
                                    </asp:BoundField>
                                    
                                    <asp:CommandField HeaderText="删除" ShowDeleteButton="True" DeleteImageUrl="image/icon_del.gif" DeleteText="&lt;img src='image/icon_del.gif' border='0' alt='删除' /&gt;">
                                        <ItemStyle HorizontalAlign="Center" />
                                        <HeaderStyle Width="10%" />
                                    </asp:CommandField>
                                </Columns>
                                
                                <RowStyle Height="25px" />
                            </asp:GridView>
 protected void grdvItem_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        try
        {
            if (DeleteNewsItem(Convert.ToInt32(grdvItem.Rows[e.RowIndex].Cells[0].Text)) == 1)
            {
                // 添加操作成功后进行操作的代码
            }
            else
            {
                Response.Write("<script>alert('保存失败！\\n请确认填写信息后重新提交。');</script>");
            }
        }
        catch (Exception)
        {
            Response.Write("<script>alert('保存失败！\\n请确认填写信息后重新提交。');</script>");
        }
        InitNewsItemList();
        grdvItem.DataBind();
    }

Answer 2

没有看明白可不可以讲一个imagebutton的例子

Answer 3

 <asp:GridView ID="GridView1" runat="server" OnRowCommand="GridView1_RowCommand" DataKeyNames="id">
            <Columns>
                <asp:TemplateField>
                <ItemTemplate>
                <asp:ImageButton ID="ibtndddd" runat="server" CommandName="dd" CommandArgument ="<%#  GridView1.Rows.Count %>" />
                </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView> protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        if (e.CommandName == "dd")
        {
            int index = Convert.ToInt32(e.CommandArgument);
            string CID = GridView1.DataKeys[index].Value.ToString();        
        }
    }

Answer 4

<asp:GridView ID="GridView1" runat="server" OnRowCommand="GridView1_RowCommand" DataKeyNames="id"> 
    <Columns> 
        <asp:TemplateField> 
            <ItemTemplate> 
                <asp:ImageButton ID="ibtnOK" runat="server" CommandName="OK"  /> 
            </ItemTemplate> 
        </asp:TemplateField> 
    </Columns> 
</asp:GridView> protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
    if (e.CommandName == "OK")
    {
        int index = ((GridViewRow)((ImageButton)e.CommandSource).NamingContainer).RowIndex;        //通过下面的方式找到当前行主键
        string id = GridView1.DataKeys[index].Value.ToString();        //然后做你的数据库操作
    }
}

Answer 5

5楼的请教个问题好不
((GridViewRow)((ImageButton)e.CommandSource).NamingContainer).RowIndex;这句话中e.CommandSource应该能定位到按钮吧，然后e.CommandSource).NamingContainer应该是定位到行吧（定位到cells应该是错误的吧），

Answer 6

e.CommandSource 找到命令源因为命令源事实上是个ImageButton，所以将其转化为ImageButton((ImageButton)e.CommandSource).NamingContainer 找到ImageButton的命名容器，这个容器不是一个Cell,而是一个GridViewRow,也就是说不是一个单元格，而是一行再将此命名容器转化为GridViewRow后取其索引

Answer 7

贴你的代码据我分析猜测，你在Page_Load绑定数据是没有判断回传    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        { 
            //绑定GridView
        }
    }

Answer 8

如果命名容器是一行的话，行与行之间的cell里也有同名的控件，像如果模板列中加入了个button，不就是这样吗?

Answer 9

在imagebutton点击事件中:       GridViewRow Row=((ImageButton)sender).NamingContainer as GridViewRow;
        string id = GridView1.DataKeys[Row.RowIndex].Value.ToString();

Answer 10

你可以定个LABLE控件绑定那个button按钮，读取那个LABLE的值就可以了哦。

Answer 11

 public void CheckBox1_CheckedChanged(object sender, EventArgs e)
    {
        GridViewRow currentRow = ((CheckBox)sender).Parent.Parent as GridViewRow;        // 选中的行
        Session["bid"] = currentRow.RowIndex + 1;        if (currentRow.RowIndex + 1 > 0)
        {
            int count = 0;
            // 获取主键编号
            foreach (GridViewRow row in GridView1.Rows)
            {
                CheckBox cb = (CheckBox)row.FindControl("CheckBox1");                if (cb != null && cb.Checked)
                {
                    this.masid = Convert.ToString(GridView1.DataKeys[row.RowIndex].Value);
                    Session["masid"] = this.masid;                    GridView1.SelectedIndex = row.RowIndex;
                }
            }
}
这是我在gridview中嵌套checkbox是获取选中行的主键的方法，我认为这和我现在嵌套imagebutton去选中行的原理应该是一样的，可是现在问题是我怎么都取不到呀！！！郁闷！
每次取到的值都是0