解决方案： public void bind() {

string sqlstr = \5 * from 飞狐工作室\ sqlcon = new SqlConnection(strCon);

SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open();

myda.Fill(myds, \飞狐工作室\ GridView1.DataSource = myds;

GridView1.DataKeyNames = new string[] { \身份证号码\}; GridView1.DataBind(); sqlcon.Close();

GridView1.Columns[3].Visible = false;//一开始隐藏

CheckBox1.Checked = false;//如果不这样后面的代码会把他True }

双击CheckBox1，在CheckedChanged方法里写上代码，最后代码如下： protected void CheckBox1_CheckedChanged(object sender, EventArgs e) {

GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;

Response.Write(\的第4列现在的显示隐藏状态是：\+GridView1.Columns[3].Visible.ToString()); }

注意：CheckBox1的AutoPostBack要True！

后台全部代码如下：

using System; using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security; using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page {

SqlConnection sqlcon; SqlCommand sqlcom;

string strCon = \Source=(local);Database=北风贸易;Uid=sa;Pwd=sa\ protected void Page_Load(object sender, EventArgs e) {

if (!IsPostBack) {

ViewState[\= \身份证号码\ ViewState[\= \ bind(); } }

protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) {

GridView1.EditIndex = e.NewEditIndex; bind(); }

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e) {

string sqlstr = \飞狐工作室 where 身份证号码='\+ GridView1.DataKeys

[e.RowIndex].Value.ToString() + \

sqlcon = new SqlConnection(strCon); sqlcom = new SqlCommand(sqlstr,sqlcon); sqlcon.Open();

sqlcom.ExecuteNonQuery(); sqlcon.Close(); bind(); }

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) {

sqlcon = new SqlConnection(strCon);

string sqlstr = \飞狐工作室 set 姓名='\

+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + \家庭住址='\

+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + \身份证号码='\

+ GridView1.DataKeys[e.RowIndex].Value.ToString() + \ sqlcom=new SqlCommand(sqlstr,sqlcon); sqlcon.Open();

sqlcom.ExecuteNonQuery(); sqlcon.Close();

GridView1.EditIndex = -1; bind(); }

protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) {

GridView1.EditIndex = -1; bind(); }

public void bind() {

string sqlstr = \5 * from 飞狐工作室\ sqlcon = new SqlConnection(strCon);

SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open();

myda.Fill(myds, \飞狐工作室\ GridView1.DataSource = myds;

GridView1.DataKeyNames = new string[] { \身份证号码\}; GridView1.DataBind(); sqlcon.Close();

GridView1.Columns[3].Visible = false; CheckBox1.Checked = false; }

protected void CheckBox1_CheckedChanged(object sender, EventArgs e) {

GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;

Response.Write(\的第4列现在的显示隐藏状态是：\+GridView1.Columns[3].Visible.ToString()); } }

前台代码：