关于DataGrid的TemplateColumn的问题，请高人指点！

Question

DataGrid的TemplateColumn里有一个CheckBox,我的问题是CheckBox似乎不能激发OnItemCommand事件，那么我怎么可以在CheckBox的Checked属性发生改变的时，知道发生变化的这个CheckBox时DataGrid中的哪一行的呢？也就是说，我要从CheckBox出发，找出它位于DataGrid中的那一行？希望高手帮帮忙，在线等！！谢谢！！

Answer 1

两个方法：        /// <summary>
        /// 此方法适合绑定列,不适合数据表主键绑定了Label的情况.
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="controlID">checkBox控件ID</param>
        /// <param name="primaryKeyIndex">要获取数据表中列的索引</param>
        /// <returns></returns>
        public static ArrayList GetSelected(GridView grid, string controlID, int primaryKeyIndex)
        {
            ArrayList aryChecked = new ArrayList();
            for (int i = 0; i < grid.Rows.Count; i++)
            {
                CheckBox chk = (CheckBox)grid.Rows[i].FindControl(controlID);
                if (chk.Checked)
                    aryChecked.Add(grid.Rows[i].Cells[primaryKeyIndex].Text.ToString());
            }
            return aryChecked;
        }        /// <summary>
        /// 
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="checkBoxControlID"></param>
        /// <param name="primaryKeyControlID"></param>
        /// <returns></returns>
        public static ArrayList GetSelected(GridView grid, string checkBoxControlID, string primaryKeyControlID)
        {
            Label lbl_id = null;
            //
            ArrayList aryChecked = new ArrayList();
            for (int i = 0; i < grid.Rows.Count; i++)
            {
                CheckBox chk = (CheckBox)grid.Rows[i].FindControl(checkBoxControlID);
                if (chk.Checked)
                {
                    if (grid.Rows[i].FindControl(primaryKeyControlID) is Label)
                    {
                        lbl_id = (Label)grid.Rows[i].FindControl(primaryKeyControlID);
                        aryChecked.Add(lbl_id.Text.Trim());
                    }
                }
            }
            return aryChecked;
        }

Answer 2

前台：<asp:TemplateField HeaderText="请选择">
                            <ItemStyle HorizontalAlign="center" />
                            <HeaderTemplate>
                                <input type="checkbox" id="chk_All" onclick="checkAll()" />
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:CheckBox ID="chk_selected" runat="server" />
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField Visible="False">
                            <ItemTemplate>
                                <asp:Label ID="lbl_TeachCatalogID" Text='<%# Convert.ToInt32(DataBinder.Eval(Container.DataItem,"teachCatalogID")) %>'
                                    runat="server"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
后台：ArrayList selectRows = GetGridCheckColumn.GetSelected(grid_Course, "chk_selected", "lbl_TeachCatalogID");

Answer 3

哪位高手帮忙看一下问题:http://community.csdn.net/Expert/topic/5697/5697714.xml?temp=.216427,在控件板块那边好冷清.

Answer 4

ItemCommand事件里,循环所有的行,判断CheckBox是否选取,取着行的索引就可以了.

Answer 5

在 protected void myGrid_ItemCommand(object source, DataGridCommandEventArgs e)
事件中写，应该就可以了，我也可以采用为CheckBox手工添加事件的方法

Answer 6

这个都是要遍历DataGrid的所有项的    protected void btnDelete_Click(object sender, EventArgs e)
    {
        CheckBox chk;
        foreach (DataGridItem dgi in DataGrid1.Items)
        {
            chk = (CheckBox)dgi.FindControl("chkSelect");
            if (chk != null)
            {
                if (chk.Checked)
                {
                   
                 //可以使用DataGrid1.DataKeys[dgi.ItemIndex].ToString()得到当前主键值
                  
                }
            }
        }
    }