After successful login, return to the pre-login URL and delete server images, server Images

After successful login, return to the pre-login URL and delete server images, server Images

After successful login, return to the pre-login URL

Add:

protected void Page_Load(object sender, EventArgs e)    {        Session.Add("url", Request.Url.ToString());    }

 

After successfully logging on to the website's cs:

Response.Redirect(Session["url"].ToString());

Delete server Images

Example of how to bind GridView1 to a database and delete an image:

Cs file:

BIND database:

 

private string connStr = ConfigurationManager.ConnectionStrings["qiyesql"].ConnectionString;

 

Delete server images:

Protected void GridView1_RowDeleting1 (object sender, GridViewDeleteEventArgs e) {SqlConnection con = new SqlConnection (connStr); con. open (); SqlCommand com = new SqlCommand ("select image from huandengyi where id = '" + GridView1.DataKeys [e. rowIndex]. value. toString () + "'", con); SqlDataReader dr = com. executeReader (); if (dr. read () {string path = HttpContext. current. server. mapPath ("~ /"+ Dr [" image "]. toString (); if (File. exists (path) {File. delete (path);} else {Response. write ("<script> alert ('image does not exist or deleted '); </script>") ;}} else {Response. write ("<script> alert ('data error'); </script> ");}}

 

Add attributes to aspx GridView1

 OnRowDeleting="GridView1_RowDeleting1"