#SEQ Keyword - Charting Control With Multiple Azure Cloud Application Instances
Feb 27, 2010
I am having a simple Azure cloud app(WebRole=ASP.Net MVC) which draws charts using ASP.Net Charting control. Chart RenderType = ImageMap Chart ImageLocation = "/Images/Chart_#SEQ(1000,1)" Number of app instances deployed on Windows Azure = 5 App contains a button which draws charts as per users parameters. When user clicks on this button, MVC action is called which provides necessary ViewData for drawing chart and returns a partial view which after getting rendered sends ImageMap and Image location to client.
When I try to draw charts from IE8 I always get the charts as per my parameters but when I simulataneously try to draw charts on FireFox sometimes I get wrong charts(wrong images). Is is due to roundrobin used - #SEQ(1000,1) or due to mutiple instances of my cloud app?
I want to use a global data for MVC web application running on Windows Azure (e.g. something like a list of users having new messages).
For a normal webapp, I could use some per-appdomain storage like AppDomain.SetData or just static variable. What should I use for Azure instead (cache? blob storage? queues?) and what solution would be the fastest one?
I have a Silverlight/RIA application that worked fine locally and on my IIS 7 server. Now that I've moved it to Azure, I'm getting EndpointNotFoundExceptions.
[EndpointNotFoundException]: There was no channel actively listening at [URL]
DomainService.svc/binary/SeviceEndpoint
ive seen the solution for wcf services here [URL] but im not sure if this is also applicable for ria services
I have a user control that I place on a page severl times. When I make a selection on a ddl in one one control the SelectedIndexChanged event fires for all the control on the page for that ddl. So I get duplication of an insert that I do. Is there a ay to make sure these events are isolated so this doesn't happen.
I have an ASP.NET page inside of an ASP.NET Master page, and inside the page I have two instances of the same web user control. I have given them different IDs, but when I click a button on the first user control it causes the second user control to do the expected activity and the first one does nothing. Is there something I need to do to make sure that the controls don't get confused?
I have built a User Control in VB which displays two gridviews and allows a user to select an item in the first gridview and display multiple rows in the second grid with the key of the selected item from the first. The data to be displayed is passed to the User Control as a datatable object via a public property of the User Control.
The user control works perfectly, but to allow the the subs in the codebehind of the User Control to access the data set when the user control is initialised, I have declared them as "Private Shared".
Having got everything to work, I now want to display multiple instances of the same User Control with different datasets.
However, because my data objects are defined as "Private Shared" each instance of the user control is overwriting the data of the others.
I can fix this problem by removing the "Shared" keyword, and have also tried setting them to "Protected" instead but then my variables expire after being set and contain "Nothing" when I get to the "RowCommand" event in the Code Behind.
I'm sure I must be doing something stupid, because surely the whole idea of User Controls is to make reusable code drven by parameters.
I have a user control, that has an update panel and update progress control in it.
I use this user control in more than 1 location on the same page.... problem is, when ucA posts back, I see the update progress control for both ucA and ucB. I assume this is because it is a user control and the update panel and progress are named the same?
Either way - how do I make it so that the update progress only displays for the proper user control?
I am new to cloud computing, so please bear with me here. I have an existing ASP.NET application with SQL Server 2008 hosted on a Virtual Private Server. Here's what it briefly does:The front end accepts user's requests and adds them to a DB tableA Windows Service running in the background picks up the request, processes it and sets a flag.The Windows Services also creates a file for the user to download
I have 3 columns of data that get returned from a stored procedure. Date, Error code,and Quantity. On one day we can have 8 different error codes, with different quantities.For example on the date of 18 Nov we had error code 101 = 24, error code 102 = 36, error code 103 = 4, etc. I am trying to display the different error codes in columnswith their quantity by date. There will be multiple columns for a given day because the error codes range from 101 -124. How can I display this? I currently have Just oneat a time being display based on which the end user picks.
I have created a Web Control in ASP for use in integrating with Telligent CommunityServer. The control is written in ASP with some 10 lines of C# backend for controlling visibility of the UI elements based on permissions, but I'd say 90% of the functionality is straight-up Javascript. The control works beautifully, until you drop two instances of the Control on the same page--since they reference the exact same Javascript functions, only one control works. How can I take this functionality that I have, this 1200 lines of Javascript, and make it so that each instance of the control can reference its each unique instance of Javascript?
I'm currently developing a website that shows multiple charts that I build using data from SQL tables. I've used and followed Scott Mitchell's tutorial [URL] and K. Scott Allen's ChartBuilder class [URL] and all works well.
However when have two series that I want to show on the same Chart, if one set of data does not have all of the X values the other series does, the chart blindly puts all the data on, ignoring trying to match the X values of the other series, therefore mismatching the X values when the chart is shown.
I know that I can fiddle the data so that both sets of data have the same X values, however I'm trying to make the class handle anomalies in the data so that I don't have to worry too much about the data.
I am currently building a web application that will involve many servers to get it to run efficiently. I am trying to test this web site at home and I have a few computers running the website. To connect to the website I would type this into the address bar http://192.168.0.200:8080 or I would typehttp://192.168.0.201:8080. However when I transfer my site from one computer to another the web browser can no longer read the cookies. I would like to set up a home DNS server and have the computers in my house access the site like this w1.MySite.com and w2.MySite.com instead of http://192.168.0.200:8080 or I would type http://192.168.0.201:8080 so I can test if my cookies are working accross subdomains. how to set up a local DNS server so I can do this?
Normally my application is working fine.After I host my asp application on IIS I get an exception "internal error", when I try to execute the below lines of code.
where CertificatePath = C:inetpubwwwroot......
X509Certificate2 cert = new X509Certificate2(CertificatePath, CertificatePassword); var serviceManagment = ServiceManagementHelper.CreateServiceManagementChannel(EndpointConfigurationName, cert); var listServices = serviceManagment.ListHostedServices(SubscriptionId);
I suppose the application is not able to read the IIS certificate.I am trying to connect to windows azure cloud for which the certificate is required to get list of hosted services from cloud.
Stack trace -
StackTrace = " at System.Security.Cryptography.CryptographicException.ThrowCryptographicException(Int32 hr) at System.Security.Cryptography.X509Certificates.X509Utils._LoadCertFromFile(String fileName, IntPtr password, UInt32 dwFlags, Boolean persistKeySet, Safe...
Is there an easy way to prevent users from opening multiple instances of the same web application? Can I add something to the application start section of the global page which would prevent this?
We're currently refactoring our ASP.NET 4.0 Web Application to run on both plain old IIS and Azure. For the Settings (in the Properties namespace), I'd like to implement the State Pattern with an AzureSettingsState and a StandaloneSettingsState, which both provide settings getter methods.Now could anybody help me figuring out how ASP.NET deserializes the non-String values (e.g. TimeSpan or StringCollection), so that I can deserialize them on my own in the context class? All settings seem to be strings there.
public abstract class ConfigStateBase { public abstract string GetSettingValue(string setting); }
What I am trying to figure out is how to use a custom delimiter, single character or set of characters, to wrap a block of text inside a larger body of text and then pull that text out via regex. I have successfully done this with a single instance of wrapped text. If I have multiple instances, it blows up. Here is an example.
This would be my text block with the internally wrapped text:
[Code]....
When my current regex runs on this block, the greedy nature gives me a match starting with my first wrapped block delimeter and ending with my second wrapped block end delimeter. So my regex of @"#Delim(.*)#EndDelim" doesn't work in this instance. I am trying to figure out how to exclude the #EndDelim from my grouping. Simply using ([^#EndDelim]*) doesn't work as it tells regex to ignore the individual characters inside the brackets and not the actual word so this breaks if I have any of those characters inside my wrapped block of text.
I am probably making this harder than it needs to be. Does anyone know of a good solution or how to ignore entire words in regex?
I'm having problems with retrieving multiple instances of a session variable from an InProc session state. In the following code I persist a simple BusinessObject into a session variable on the Page_Load event. On the click of a button I try to retrieve the object back into 2 new declared instances of the same BusinessObject. All works great until I change one of the properties in the first instance, it changes the second instance as well. Is this normal behaviour? I would have thought as these were new instances they wouldn't demonstrate static behaviour?
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load If Not Page.IsPostBack Then ' create a new instance of a business object and set a containg variable Dim BO As New BusinessObject BO.SomeVariable = "test" ' persist to inproc session Session("BO") = BO End If End Sub
Protected Sub btnRetrieveSessionVariable_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnRetrieveSessionVariable.Click ' retrieve the session variable to a new instance of BusinessObject Dim BO1 As New BusinessObject If Not Session("BO") Is Nothing Then BO1 = Session("BO") ' retrieve the session variable to a new instance of BusinessObject...............................
I've been working on an usercontrol with a jquery timer in it. At first I had the jquery within the usercontrol. But when I add 2 of those controls to my page the second usercontrol isn't showing it's data very well.Now I've put the jquery into the mainpage and the usercontrol only uses the id's of the jquery.
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="WebUserControl.ascx.cs" Inherits="WebUserControl" %> <style type="text/css"> [code]...
is there any way to stop share the static variable at multiple users....I need to create a new insatnce of static variables or not accessing the same static variables across multiple who are using the same site.....while googling i found like hisSystem.Threading.Interlocked.Increment(ref MyClass.InstanceCounter); by using can I do....or is there any other way to stop accessing the static variables accross multiple instances of my site......and in my scenario i cannot use rely on session variable also
I have a ScriptControl that uses an image as an embedded resource and GetWebResourceUrl to generate the WebResource.axd URL. I am currently using GetScriptDescriptors() to send the URL to the JavaScript object.The ScriptControl can be in a Repeater, so you may have 20+ instances. They all use the same images (not customizable through property), so I would like to set the URL once in a variable and share it. I know I could register a script block with a global variable, but would like to avoid that if possible. Is there a way to set a variable within the scope of the control type (global -> control type -> control instance)?
I have the current block of code inside an OnPreRender method of a validator that is inheriting from BaseValidator. If I have one instance of the validator this works fine, but if there are multiple instances the javascript flakes out. As it stands the acutal evaluation function has to be rendered on a per instance basis. I know it's kind of a drop in the bucket, but I'd like to register the block below just once instead of giving each instance a unique key to register with.
If more than one person is using the web application, and the web application requires to read a specific file (and in my case, I use StreamReader), I've noticed that the any other instance of the web application would have an exception error when trying to read a file. How do you handle this? And how about when it comes to writing to the same file (if possible)?
