方法一:

后台代码:

复制代码 代码如下:

 protected void btn_delete_Click(object sender, EventArgs e)

    {

        for (int i = 0; i <this.gridview1.Rows.Count; i++)

        {

            int id = Convert.ToInt32(this.GridView1.DataKeys[i].Value);

            if ((this.GridView1.Rows[i].Cells[0].FindControl(“CheckBox1”) as CheckBox).Checked == true)

            {

                Delete(id);

                ClientScript.RegisterStartupScript(GetType(),”提示”,”<script>alert(‘删除成功!’)</script>”);

            }

        }

        this.GridView1.DataBind();

    }//删除

    private void Delete(int id)

    {

        using (SqlConnection conn = new SqlConnection(str))

        {

            conn.Open();

            SqlCommand comm = conn.CreateCommand();

            comm.CommandText = “delete from Notice_Msg where id=@id”;

            comm.Parameters.Add(new SqlParameter(“@id”, id));

            comm.ExecuteNonQuery();

        }

    }

前台代码:

复制代码 代码如下:

<asp:GridView ID=”GridView1″ runat=”server” DataKeyNames=”id”>

另外还得添加一列,让其绑定的字段为id,并且把这一列的visable属性设为false

方法二:

后台:

复制代码 代码如下:

 protected void btn_delete_Click(object sender, EventArgs e)

    {

        foreach (GridViewRow row in this.GridView1.Rows)

        {

            if (row.RowType == DataControlRowType.DataRow)

            {

                CheckBox ckb = row.Cells[2].FindControl(“CheckBox1”) as CheckBox;

                if (ckb.Checked)

                {

                    using (SqlConnection sqlCnn = new SqlConnection(str))

                    {

                        using (SqlCommand sqlCmm = sqlCnn.CreateCommand())

                        {

                            sqlCmm.CommandText = “delete from Regime_Table where id='” + row.Cells[0].Text + “‘ “;

                            sqlCnn.Open();

                            int a= sqlCmm.ExecuteNonQuery();

                            if (a>0)

                            {

                                ClientScript.RegisterStartupScript(GetType(),”提示”,”<script>alert(‘删除成功!’)</script>”);

                            }

                            else

                            {

                                ClientScript.RegisterStartupScript(GetType(), “提示”, “<script>alert(‘删除失败!’)</script>”);

                            }

                            this.DataBind();

                        }

                    }

                }

            }

        }

    }

前台:

复制代码 代码如下:

<style type=”text/css”>

    .Hidden

    {

        display:none;

    }

    </style>

<asp:BoundField DataField=”id” HeaderText=”编号” >

                   <HeaderStyle CssClass=”Hidden” />

                   <ItemStyle CssClass=”Hidden” />

                   </asp:BoundField>

新增加一列,这一列绑定id字段,并且visable属性不能为false,否则取不出值来。

checkbox全选功能:

复制代码 代码如下:

<script type=”text/jscript”>

         function change(sender) {

             var table = document.getElementById(“GridView1”);

             for (var i = 1; i < table.rows.length; i++) {

                 table.rows[i].cells[1].getElementsByTagName(“input”)[0].checked = sender.checked;

             }

         }

    </script>

<HeaderTemplate>

      <input id=”Checkbox2″ type=”checkbox” onclick=”change(this)”/>

             全选

         </HeaderTemplate>
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