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    <p>You cannot call a server function like that in you javascript code.</p> <p>To call a server function, you have to send a request to the server first. This is usually a Postback in asp.net.</p> <p>If you do want to call a function like that, you have to mark it as a <code>WebMethod</code>. Asp.net will hide all the js that is needed to call the function. </p> <p>This blog on <a href="http://geekswithblogs.net/frankw/archive/2008/03/13/asp.net-ajax-callbacks-to-web-methods-in-aspx-pages.aspx" rel="nofollow">WebMethods</a> will get you started.</p> <p>Your code should look like this:</p> <pre><code> [System.Web.Services.WebMethod()] [System.Web.Script.Services.ScriptMethod()] public void LogoutTime(string username, string pcname, string module) { String connectionString = ConfigurationManager.ConnectionStrings["VSConfigConnectionString"].ConnectionString; SqlConnection connection = new SqlConnection(connectionString); SqlCommand cmd = new SqlCommand("UPDATE [Access] set LogOutDate = '" + DateTime.Today.ToString("dd/MM/yyyy") + "', LogOutTime = '" + DateTime.Now.ToString("HH:mm:ss") + "' WHERE LoginID ='" + username + "' AND ModuleID = '" + module + "' AND comptname ='" + pcname + "' AND LogOutDate= ' '", connection); cmd.Connection.Open(); cmd.ExecuteNonQuery(); cmd.Connection.Close(); cmd.Connection.Dispose(); } </code></pre> <p>You can now call this function in javascript using <code>PageMethods</code></p> <pre><code>PageMethods.LogoutTime('lblUserName.Text', 'lblComputerName.Text', 'UR', update); </code></pre> <p>You should put that function in your master page if you want it on all pages, not in a separate page.</p>
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    1. POHow to call a class from a cs file to update or save the session expired in database?
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    1. COHi, it didn't shows any error message but still cannot saving the logout time in my database. Any other suggestion?
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    2. COThere was an error in reply, function names were different. Corrected it. `PageMethods.LogoutTime` should be available in javascript. Type this in a console or alert box and check the function exists.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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