CheckBox全选

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全选

foreach (GridViewRow gv in GridView1.Rows)
            {
                CheckBox cb = (CheckBox)gv.FindControl("CheckBox1");
                cb.Checked = true;

            }

删除

 for (int i = 0; i < GridView1.Rows.Count; i++)
            {
                CheckBox cb = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
                if (cb.Checked)
                {
                    int id = Convert.ToInt32(GridView1.DataKeys[i].Value);
                    BaseController.db.Delete("news", "_id", null, id);
                    Response.Redirect("NewsList.aspx");

                }
            }

CheckBox全选

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原文地址：http://www.cnblogs.com/G-XiaoHua/p/4832272.html