怎么获取GridView某列里面的值,再把值传到另一个界面的文本框里

　　RowDataBound里e.Row.Attributes.Add("onDblClick", "javascript:window.opener.location.href='子窗体B.aspx?id="+e.Row.Cells[1].Text.ToString() + "';window.close();"); e.Row.Attributes.Add("onDblClick", "javascript:window.opener.documentById('txt').value='"+e.Row.Cells[1].Text.ToString() + "';window.close();"); protected void gv_RowUpdating(object sender, GridViewUpdateEventArgs e) { this.gv.EditIndex = e.RowIndex; int id = int.Parse(this.gv.DataKeys[e.RowIndex].Value.ToString()); string str = ((TextBox)this.gvTarget.Rows[e.RowIndex].FindControl("txt")).Text.Trim(); Response.Write("");}