string newsid =?

唉，不行啊，我换了一种方法，能不能帮我看看啊
页面左侧是一个GRIDVIEW，只显示了标题字段，我想点击其中一行后，在右边的４个ＴＥＸＴＢＯＸ里显示数据表中的其他内容
protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
string conn = ConfigurationSettings.AppSettings["strConn"].ToString();

SqlConnection con = new SqlConnection(conn);
con.Open();
SqlDataAdapter myCommand = new SqlDataAdapter("newsList", con);
DataSet myDataSet = new DataSet();
//填充DataSet
myCommand.Fill(myDataSet);
//关闭链接
GridView1.DataSource = myDataSet;
//绑定
GridView1.DataBind();

}

}
protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{

this.TextBox1.Text = this.GridView1.SelectedDataKey["biaoti"].ToString();
this.TextBox2.Text = this.GridView1.SelectedDataKey["fabuzhe"].ToString();
this.TextBox3.Text = this.GridView1.SelectedDataKey["shijian"].ToString();
this.TextBox4.Text = this.GridView1.SelectedDataKey["neirong"].ToString();
}
}
可是点击没反映

忘了说了首先设置DataKeyNames属性：
<asp:GridView ID="GridView1" runat="server" DataKeyNames="field1,field2,field3,field4">

标题列用<asp:ButtonField CommandName="Select" DataTextField="标题字段" />