Response.Redirect cannot be called in a Page callback

Issue:Response.Redirect cannot be called in a Page callback when using devexpress controls

Solution :
  if (Session.IsNewSession || !User.Identity.IsAuthenticated)
            if (IsCallback)
                DevExpress.Web.ASPxClasses.ASPxWebControl.RedirectOnCallback("SessionTimeout.aspx");
            else
                Response.Redirect("SessionTimeout.aspx");

---

This email has been checked for viruses by Avast antivirus software. www.avast.com

How to Repair a database with Suspect

Please execute the following sql command with replacing “YourDatabase”

EXEC sp_resetstatus [YourDatabase];

ALTER DATABASE [YourDatabase] SET EMERGENCY

DBCC checkdb([YourDatabase])

ALTER DATABASE [YourDatabase] SET SINGLE_USER WITH ROLLBACK IMMEDIATE

DBCC CheckDB ([YourDatabase], REPAIR_ALLOW_DATA_LOSS)

ALTER DATABASE [YourDatabase] SET MULTI_USER

---

This email has been checked for viruses by Avast antivirus software. www.avast.com

devexpress ASPxMemo set Maxlength

function SetMaxLength(memo, maxLength) {

            if (!memo)

                return;

            if (typeof (maxLength) != "undefined" && maxLength >= 0) {

                memo.maxLength = maxLength;

                memo.maxLengthTimerToken = window.setInterval(function () {

                    var text = memo.GetText();

                    if (text && text.length > memo.maxLength)

                        memo.SetText(text.substr(0, memo.maxLength));

                }, 10);

            } else if (memo.maxLengthTimerToken) {

                window.clearInterval(memo.maxLengthTimerToken);

                delete memo.maxLengthTimerToken;

                delete memo.maxLength;

            }

        }

<dx:ASPxMemo Height="80px" CssClass="devxLargeinput midwidtn" ID="txtEnterpriseDo" AutoResizeWithContainer="true" CssPostfix="ConnectToGrow" CssFilePath="~/css/devxpresscustom.css" Width="100%" runat="server">

                    <ClientSideEvents Init="function(s,e){SetMaxLength(s, 500)}" />

                </dx:ASPxMemo>

---

This email has been checked for viruses by Avast antivirus software. www.avast.com

Javascript to alert on window web closure

Here is a code to alert the user on window closure or tab closure in web browser.

function setConfirmUnload(on) {

            window.onbeforeunload = (on) ? unloadMessage : null;

        }

        function unloadMessage() {

            return "Are you sure you want to leave this page without saving your details? Please click the save button at the bottom of the page.";

        }

        window.onload = function () {

            setConfirmUnload(true);

        }

---

This email has been checked for viruses by Avast antivirus software. www.avast.com