GridView的修改，删除，查询

  <div>        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" OnRowCancelingEdit="GridView1_RowCancelingEdit" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing" OnRowUpdating="GridView1_RowUpdating" DataKeyNames="DepartId">            <Columns>                <asp:TemplateField>                    <HeaderTemplate>                        部门编号                    </HeaderTemplate>                    <EditItemTemplate>                        <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("DepartId") %>'></asp:TextBox>                    </EditItemTemplate>                    <ItemTemplate>                        <asp:Label ID="Label1" runat="server" Text='<%# Bind("DepartId") %>'></asp:Label>                    </ItemTemplate>                </asp:TemplateField>                <asp:TemplateField>                    <HeaderTemplate>                        部门名称                    </HeaderTemplate>                    <EditItemTemplate>                        <asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("DepartName") %>'></asp:TextBox>                    </EditItemTemplate>                    <ItemTemplate>                        <asp:Label ID="Label2" runat="server" Text='<%# Bind("DepartName") %>'></asp:Label>                    </ItemTemplate>                </asp:TemplateField>                <asp:TemplateField HeaderText="操作" ShowHeader="False">                    <EditItemTemplate>                        <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="True" CommandName="Update" Text="更新"></asp:LinkButton>                         <asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Cancel" Text="取消"></asp:LinkButton>                    </EditItemTemplate>                    <ItemTemplate>                        <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Edit" Text="编辑"></asp:LinkButton>                        <asp:LinkButton ID="LinkButton2" CausesValidation="false" CommandName="Delete" Text="删除" runat="server" />                                         </ItemTemplate>                </asp:TemplateField>            </Columns>        </asp:GridView>    </div>

public partial class WebForm3 : System.Web.UI.Page    {        DepartmentInfoBLL dbll = new DepartmentInfoBLL();        PRotected void Page_Load(object sender, EventArgs e)        {            if (!IsPostBack)            {                InitGridView();            }        }        private void InitGridView()        {            IList<DepartmentInfo> list = dbll.GetAll();            this.GridView1.DataSource = list;            this.GridView1.DataBind();        }        protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)        {            int departId = int.Parse(e.Keys[0].ToString());            //执行删除的方法            dbll.DeleteByDepartId(departId);            //重新加载数据            InitGridView();        }        protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)        {            this.GridView1.EditIndex = e.NewEditIndex;            InitGridView();        }        protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)        {            GridViewRow row = this.GridView1.Rows[e.RowIndex];            int departId = int.Parse(e.Keys[0].ToString());            string departName = (row.FindControl("TextBox2") as TextBox).Text;            //执行修改的方法            dbll.Update(new DepartmentInfo()            {                DepartId = departId,                DepartName = departName,                Remark= ""            });            //取消编辑状态            this.GridView1.EditIndex = -1;            //重新加载一次数据            InitGridView();        }        protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)        {            this.GridView1.EditIndex = -1;            InitGridView();        }    }