Imagination ^ ∞ == Intelligence

Tuesday, May 4, 2021

Hindi essay and Marathi essay and travel

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Thursday, November 13, 2014

if Session is NULL then Close Popup and Redirect Parent window to some location
using JavaScript and Asp.net

VeerKMS='Project home folder name'

if (Session["UserId"]==null)
        {
            ScriptManager.RegisterStartupScript(this, this.GetType(), Guid.NewGuid().ToString(), "opener.location.href ='/VeerKMS/Login.aspx';self.window.close();", true);
            return;

        }

Display Window Before Closing Current PopUp window

ScriptManager.RegisterStartupScript(this, this.GetType(), Guid.NewGuid().ToString(), "setTimeout(function(){window.close();},500);", true);
            ScriptManager.RegisterStartupScript(this, this.GetType(), Guid.NewGuid().ToString(), "alert('Data Saved Successfully.');", true);

Refresh parent window using invisible button from child window

<asp:Button style="display:none" ID="invisibleButton" runat="server" OnClick="RemoveRecordFromGrid" />

<script type="text/javascript" language="javascript">


        function WindowClose()
        {

        var form1=window.opener.document.getElementsByTagName("form")[0];

        //alert(form1.ctl00_ctl00_cphMaster_cphkycmaster_invisibleButton);
            form1.ctl00_ctl00_cphMaster_cphkycmaster_invisibleButton.click();
            window.close();
        }

    </script>

protected void RemoveRecordFromGrid(object sender, EventArgs e)
    {
        Refresh_GrdViewAccountDetails();
    }

Tuesday, May 27, 2014

Sql Server Tricks and Tips

From Long Hour Thinking Today I got Some Ideas About Dynamic Searching.

When We have to search with Multiple Search Conditions like

select * from Customer where

Name='CustomerNm' and CustNo='CustNO' and

CustID='CustID' and IsActive=1

then we can use it like

declare @SQL Nvarchar(4000);

set @SQL='select * from tbl_suspiciousaccounts where 1=1 ';

if(CustomerNm is not null)

BGEIN

set @SQL=@SQL +' and cutomername= '+ CustomerNM

END

if(CustomerID is not null)

BGEIN

set @SQL=@SQL +' and CustID= '+ CustomerID

END

see that SMART Usage of 1=1 condition;

Update Local Table Using OpenQuery

            update D
            set D.LongName=L.LONGNAME
            from
            OPENQUERY(CBSLINKED,'SELECT LONGNAME,PRDACCTID,LBRCODE FROM D009022 ') L
            JOIN tbl_SuspiciousAccounts D
            ON L.PRDACCTID=D.PrdId and L.LBRCODE=D.LbrCd
            where D.LongName is null

Using Several UNION ALL

( select * from table1

group by ...

order by ...)

UNION ALL

( select * from table2

group by ...

order by ...)

UNION ALL

( select * from table3

group by ...

order by ...)

Note: Always use Bracket is Union All

Use Union All When We have to append Result of several Tables with each others.

Using Scheduler RUN Stored Procedures

Create Following Command

C:\Users\BsgIt>sqlcmd -E -S "BSGIT-PC\SQLEXPRESS2008R2" -d "BIAMLKYC_22April" -Q
"exec PrintMessage"

Then.....

Create the schedule

Open task scheduler from Start >> Administrative Tools >> Task Scheduler
Click “Create Basic Task” and enter a relevant name, e.g. Daily SQL Backup
Under “Triggers” select ‘Daily’ and then choose a time to run the backup.
Try to choose a time when your database traffic is low, typically in the early hours of the morning. Also make sure that it doesn’t overlap with other scheduled tasks like Windows Updates that may reboot the server.
Under “Action” select ‘Start a program’ and browse to the script you created earlier

Note: Same Can be Use For Backup Databases.

Wednesday, April 23, 2014

Java Script Tutors with Asp.net

While Using showModalDialog (window.showModalDialog) of JavaScript

you can close Current Child Window and Refresh Parent Page Using Following:

set location of current window to opener and refresh current window.

This will give Location (URL) of parent window who opened child window.

window.opener.location

function ClickbtnBindGridView()
{
window.opener.location.href = window.opener.location;
window.close();
}

and we can call using Script Manager in asp.net Code Behind :

ScriptManager.RegisterClientScriptBlock(this, this.GetType(), Guid.NewGuid().ToString(), "ClickbtnBindGridView();", true);

Above Functions Works well For Firefox and Chrome

for Internet Explorer we can use :

On Parent Form :
JavaScript:
<script type="text/javascript">
    function OpenChildWindow() {
        //open a new dialog window
        var sFeatures = "dialogHeight: 200px;";
        sFeatures += "dialogWidth: 400px;";
        sFeatures += "center: yes;";
        sFeatures += "edge: sunken;";
        sFeatures += "scroll: no;";
        sFeatures += "status: yes;";
        sFeatures += "resizeable: no;";
        var url = 'ChildForm.aspx?SomeValue=12345';

        entryWindow = window.showModalDialog(url, 'ChildForm', sFeatures);
        if (entryWindow == true) {
            alert("Watch for CurrTime & ChildWin labels," +
                  " its going to update as new window saved.");
            //this would trigger the update panels
            //update as the button is part of the UP
            window.document.getElementById('btnHiddenForUpdate').click();
        }
        else {
            //No change will happen to the parent page as child page did nothing
            alert("Nothing on the page will change " +
                  "as the new child window was cancelled.");
        }
    }
</script>

HTML :
<form id="form1" runat="server">
    <asp:ScriptManager ID="smParent" runat="server" />
       <div id="divUpdatePanel">
             <asp:UpdatePanel ID="upParent" runat="server">
                <ContentTemplate>
                    <asp:Label ID="lblCurrTime" runat="server" Text="CurrTime:">
                    </asp:Label> <br />
                    <asp:Label ID="lblChildWinValue" runat="server"
                               Text="ChildWin Value:"></asp:Label><br />
                    <br /><a href="javascript:OpenChildWindow();">
                             Click to open the Child Window</a><br />
                    <input type="button" id="btnHiddenForUpdate"
                           runat="server" style="display:none"
                           onserverclick="btnHiddenForUpdate_ServerClick" />
                </ContentTemplate>
            </asp:UpdatePanel>
       </div>
       <div id="divNormalUpdatePanel">
            <asp:Panel ID="pnlFullPostback" runat="server">
                <asp:Label ID="lblPageLoadTime" runat="server"
                 Text="PageLoadTime:"></asp:Label>
            </asp:Panel>
       </div>
</form>

Child Form can be 2 ways
Method 1
JavaScript:
<script type="text/javascript">
        function WindowClose() {

            window.returnValue = true;
            window.close();
        }
        function WindowCancel() {

            window.returnValue = false;
            window.close();
        }
</script>

HTML:
<form id="form1" runat="server">
    <div>
      <input id="Button2" type="button" value="Update" runat="server" onclick="WindowClose();"   title="CLose Button" />
        <input type="button" value="Close" onclick="WindowCancel();" title="CLose Button" />

    </div>
    </form>

Method 2
JavaScript
<script type="text/javascript">

function UpdateClick() {
    window.returnValue = true;
    window.close();

}
</script>

HTML
<asp:Button ID="btnUpdate" Text="Update" runat="server" CssClass="Button" OnClick="btnUpdate_Click" />
                   <asp:Button ID="btnCancel" Text="Cancel" runat="server" CssClass="Button" OnClientClick="javascript:window.close();" />

Sunday, April 13, 2014

Tutorial: How to do Cookieless ASP.NET Forms Authentication

Background

A cookie is a piece of text that a Web site can park on a user's machine to be retrieved and reused later. The information stored consists of harmless name-value pairs.

Cookies store the ID of the session and browsers transparently move their contents back and forth between the Web server and the local user's machine. When a cookie-enabled browser receives a response packet, it looks for attached cookies and stores their content to a text file in a particular folder in the local Windows directory. Next, when the browser sends a request to the site, it looks in the cookies folder for a cookie that originated from that domain. If found, the cookie is automatically attached to the outgoing packet. The cookie hits the server application where it is detected, extracted, and processed. In the end, cookies make Web sites much easier to navigate because they provide the illusion of continuity on top of a user's experience that necessarily spans over multiple requests.

Problem of Cookies

Cookies were alleged to contain dangerous programs capable of stealing valuable information even beyond the physical boundaries of the machine. Cookies are not programs and never run like programs; other software that gets installed on your machine, though, can use the built-in browser support for cookies to do bad things remotely. Furthermore, cookies are at risk of theft. Once stolen, a cookie that contains valuable and personal information can disclose its contents to malicious hackers and favor other types of Web attacks. In summary, by using cookies you expose yourself to risks that can be zeroed off otherwise

Because cookies are data written to your browser from the server. This prefigures some potential security risks and an overall situation less then ideal. (In some cases and countries, it's even illegal for an application to require cookies to work.)

If you take a look at your site's statistics regarding browsers used to access pages, you might be surprised to discover that a significant share of users connect with cookies disabled. This poses a point for you as a developer.

Solutions

The main reason for cookieless sessions in ASP.NET is that users—for whatever reasons—may have cookies disabled on their browsers. Like it or not, this is a situation you have to face if your application requires session state. Cookieless sessions embed the session ID in the URL and obtain a two-fold result. On the one hand, they provide a way for the Web site to correctly identify the user making the request. On the other hand, though, they make the session ID clearly visible to potential hackers who can easily steal it and represent themselves as you.

To implement cookieless sessions you don't have to modify your programming model—a simple change in the web.config file does the trick—but refactoring your application to avoid storing valuable information in the session state is strongly recommended too. At the same time, reducing the lifetime of a session to less than the default 20 minutes can help in keeping your users and your site safe.

How to implement cookieless authentication in ASP.net?

Step 1: Adjust the web.config file.

Interestingly enough, you don't have to change anything in your ASP.NET application to enable cookieless sessions, except the following configuration setting.

<sessionState cookieless="true" />

<authentication mode="Forms">

<forms loginUrl="Login.aspx" protection="All" timeout="30" name=".ASPXAUTH" path="/" requireSSL="false" slidingExpiration="true" defaultUrl="default.aspx"

cookieless="UseUri" enableCrossAppRedirects="true"/>

</authentication>

Step 2: Adjust all of the URL navigations in aspx files.

Be careful, the following code breaks the session:

<a runat="server" href="/test/page.aspx">Click</a>

To use absolute URLs, resort to a little trick that uses the ApplyAppPathModifier method on the HttpResponse class. The ApplyAppPathModifier method takes a string representing a URL and returns an absolute URL that embeds session information.

<a runat="server"

href=”<% =Response.ApplyAppPathModifier("page.aspx")%>” >Click</a>

Step 3: Adjust all of the URL navigations in aspx.cs files.

If the URL is set in the code, you need to do it in the following way:

this.Tab2.Url = Response.ApplyAppPathModifier("Page.aspx");

Step 4: Adjust all of the authentication method in your login page.

After the username and password have been verified, we need to do the following things to set the cookieless login state.

// Create a new ticket used for authentication

FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(

1, // Ticket version

username, // Username associated with ticket

DateTime.Now, // Date/time issued

DateTime.Now.AddMinutes(10), // Date/time to expire

true, // "true" for a persistent user cookie

string.Empty, // User-data

string.Empty // Path cookie valid for

);

// Hash the ticket

string hash = FormsAuthentication.Encrypt(ticket);

//The following is the cookie way for your reference

//HttpCookie cookie = new HttpCookie(

// FormsAuthentication.FormsCookieName, // Name of auth cookie

// hash); // Hashed ticket

// Add the cookie to the list for outgoing response

//Response.Cookies.Add(cookie);

//The following is the cookieless way we want:

FormsAuthentication.SetAuthCookie(username, false); //this set the cookieless data. Response.Redirect(Response.ApplyAppPathModifier(Request.QueryString["ReturnUrl"]));

Monday, April 7, 2014

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Sunday, March 30, 2014

I wanted to test that a particular class could be successfully serialized into the View State of a page and then successfully de-serialized in a post back. This is interesting because the view state is maintained in the request/response, rather than on the server, me we need to simulate the manner in which a browser would transfer this information.

Setting up a Web Page

So the starting point is to get an ASP.Net page that can test out the functionality we are after and report success or failure. This is simple enough, fire up Visual Studio (I’m using 2008 SP1) and create a new ASP.Net Application (File -> New -> Project -> Web -> ASP.Net Web Application), I’m calling mine “PostBackDemo”

’m just going to work with the Default.aspx page that is created for you and adding a single button to the page, I’m leaving it aptly named “Button1”. If you double click on the button VS will drill through to the code behind where you should now have two methods, one that runs on page load and another when Button1 is clicked.

At this point I’m going to add in a class to test, sticking with original scenario I’m going to verify that am instance of this class can be placed into View State and pulled back out on a post back. I’m adding in a very uninteresting Person class that has two string properties as shown below, note that I’ve marked it as serializable otherwise we won’t be able to put into View State.

[Serializable]

public class Person

{

   public string FirstName { get; set; }

   public string LastName { get; set; }

}

Now I’m going to fill out the code file for my ASPX page to add a person into View State when a page is requested and to read it back out when Button1 is clicked. The page will then write out [PASS] or [FAIL] and send the response back.

using System;

namespace PostBackDemo

{

    public partial class _Default : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

            //Load a new person into View State on intial request

            if (!Page.IsPostBack)

            {

                Person test = new Person();

                test.FirstName = "Rowan";

                test.LastName = "Miller";

                ViewState["CURRENT_PERSON"] = test;

            }

        }

        protected void Button1_Click(object sender, EventArgs e)

        {

            //Try and pull a person back out of View State

            Person test = ViewState["CURRENT_PERSON"] as Person;

            //Check if the person came back OK

            if (test != null

                && test.FirstName.Equals("Rowan")

                && test.LastName.Equals("Miller"))

            {

                Response.Write("[PASS]");

            }

            else

            {

                Response.Write("[FAIL]");

            }

            //Send outcome back to requester

           Response.End();

        }

    }

}

At this point you should be able to run your project and when clicking the button a simple “[PASS]” should be written out for you.

Writing an Automated Test

We are going to create a unit test using the inbuilt test framework in Visual Studio, for the purpose of this demo our test is going to rely on the page being available on a given url but if you combine this post with my last post on hosting pages within a unit test using Web Dev Server you can accomplish a truly automated solution.

So I’m just adding a new Test Project to my solution (File -> Add -> New Project -> Test -> Test Project), I’m calling mine TestProject. I’m just going to add my test code into the TestMethod1() that is created for you in UnitTest1.cs. Now the code to achieve what we want is actually pretty simple, I’ve posted a few topics now that use Systme.Net.HttpWebRequest and System.Net.WebResponse to hit resources over http, this one is the same except that we need to extract some content out of the initial response and include it when we post back.

The code and comments pretty much cover it so I’ll just point out a couple of things;

The initial response contains two hidden controls called __VIEWSTATE and __EVENTVALIDATION we simply need to copy the content of these controls and include them in our second request. View State is pretty obvious and includes the serialized version of our person instance. Event Validation isn’t so obvious, this is an internal construct of ASP.Net that is used to help guarantee the integrity of the page content, you can read more on that topic at http://msdn.microsoft.com/en-us/magazine/cc163512.aspx.
You’ll also notice that I’m including “&Button1=Button1” at the end of the content, this simply identifies that Button1 was clicked and ASP.Net raises the ‘Clicked’ event on Button1 for us when it sees this.
The other noteworthy part of the code is the use of a delegate to perform the writing of content to the post back request stream, you could equally have this logic tucked into a method somewhere.
If you had a method defined such as public void WriteContent(IAsyncResult asynchronousResult) you could simply call IAsyncResult res = request.BeginGetRequestStream(new AsyncCallback(WriteContent), request);

So with all that covered here is my test code;
Note that you will need to add a reference to System.Web and System.XML in your test project and the corresponding using statements at the top of UnitTest1.cs.
I’ll also just reiterate that you will need to have the aspx page available and replace the first string variable in the code below with the url of your page, if you want your test to deal with spinning up the page see my last post.

[TestMethod]

public void TestMethod1()

{

    //The url of the page you want to test

    string url = "<a href="http://localhost:49907/default.aspx">http://localhost:49907/default.aspx</a>";

    //Perform an initial request of page

    HttpWebRequest reqInitial = (HttpWebRequest)WebRequest.Create(url);

    WebResponse resInitial = reqInitial.GetResponse();

    //Extract the ASP.Net content from the page

    string viewstate = "";

    string eventvalidation = "";

    XmlTextReader xmlRead = new XmlTextReader(resInitial.GetResponseStream());

    while (xmlRead.Read())

    {

        if (xmlRead.Name == "input"

            && xmlRead.GetAttribute("id") == "__VIEWSTATE")

        {

            viewstate = xmlRead.GetAttribute("value");

        }

        else if (xmlRead.Name == "input"

           && xmlRead.GetAttribute("id") == "__EVENTVALIDATION") 

        {

            eventvalidation = xmlRead.GetAttribute("value");

        }

    }

    //Build the ASP.Net content to be included in the postback

    string postBackContent = string.Format("__VIEWSTATE={0}&__EVENTVALIDATION={1}",

      HttpUtility.UrlEncode(viewstate),

      System.Web.HttpUtility.UrlEncode(eventvalidation));

    //Add the content to notify Button1 was clicked

    postBackContent += "&Button1=Button1";

    //Build the post back request

    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

    request.Method = "POST";

    request.Referer = url;

    request.ContentType = "application/x-www-form-urlencoded";

    //Create a delegate to send content into the request

    //You would probably implement this as a seperate method that could be re-used

    AsyncCallback contentLoader = delegate(IAsyncResult asynchronousResult)

    {

        //Pull request out of async state

        HttpWebRequest req = (HttpWebRequest)asynchronousResult.AsyncState;

        //Turn our content into binary data and send it down the request stream

        byte[] content = Encoding.UTF8.GetBytes(postBackContent);

        System.IO.Stream postStream = request.EndGetRequestStream(asynchronousResult);

        postStream.Write(content, 0, content.Length);

        postStream.Close();

    };

    //Use the delegate to pour our content down the request

    IAsyncResult res = request.BeginGetRequestStream(contentLoader, request);

    //We are going to lock while we wait for a response but you could perform other

    //operations while the request is processed

    res.AsyncWaitHandle.WaitOne();

    //Pull the final content back out of the response

    WebResponse resPostback = request.GetResponse();

    StreamReader streamFinalContent = new StreamReader(resPostback.GetResponseStream());

    string result = streamFinalContent.ReadLine();

    Assert.AreEqual("[PASS]", result);

}

The Exploration Process

Coming up with this approach code was actually quite simple, once I had the web page up and running I used an HTTP tracing utility to work out what was getting sent to and from my browser and then just wrote code to mimic that. I was using Http Debugger Pro from http://www.httpdebugger.com/ but there are plenty of alternatives out there.

Source: http://romiller.com/2009/02/18/programmatic-asp-net-post-back/