WCF / ASMX :: Efficient Way To Transmit XML Messages
Aug 26, 2010
What is the most efficient way to transmit messages in WCF? I've done a few basic walkthroughs of WCF and upon analyzing the XML transmission I saw that they were very large by default... Containing what appears to me, as a lot of unnecessary information, for my needs. I'm looking for a way to send the shortest messages possible. How can I trim as much as possible from the XML? Can I remove all the header information. What approach for sending the shortest messages possible using XML in WCF?
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Similar Messages:
Dec 15, 2010
I have a custom dead letter queue service to pick up messages from DLQ. This service picks up failed message from DLQ and tries to resend to a different end point. If the new endpoint doesn't work, it rolls back transaction. This works great. Here is the code.
{
[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single,
ConcurrencyMode = ConcurrencyMode.Single,
AddressFilterMode = AddressFilterMode.Any)]
public class FDPDLQService : IFDService
{
FDPManager _fdpManager = new FDPManager();
[OperationBehavior(TransactionScopeRequired = true, TransactionAutoComplete = true)]
public void ProcessFDMessage(FDMessage message)
{
//System.Diagnostics.Debugger.Launch();
try
{
MsmqMessageProperty mqProp =
OperationContext.Current.IncomingMessageProperties[MsmqMessageProperty.Name] as MsmqMessageProperty;
// if message log required, and configured, log the incoming message
try
{
ChannelFactory<IFDPRouter> factory = new ChannelFactory<IFDPRouter>("IFDPRouter_EP");
IFDPRouter proxy = factory.CreateChannel();
string ep = proxy.GetNextEPForGivenEP(OperationContext.Current.IncomingMessageHeaders.To.ToString());
if (ep == null || ep == string.Empty)
{
throw new EndpointNotFoundException(Common.Constants.FDP_NOT_FOUND_EXCEPTION_MESSAGE);
}
// Process message with next end point available
_fdpManager.ProcessFDMessage(message, ep);
}
catch (EndpointNotFoundException enfe)
{
ExceptionManager.HandleException(enfe);
Transaction.Current.Rollback();
//throw;
}
catch (Exception ex)
{
ExceptionManager.HandleException(ex);
Transaction.Current.Rollback();
//throw;
}
}
}
}
Below is config entries.
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.serviceModel>
<bindings>
<netMsmqBinding>
<binding name="DLQServiceBinding" closeTimeout="00:01:00" openTimeout="00:01:00"
receiveTimeout="00:10:00" sendTimeout="00:01:00" deadLetterQueue="Custom" customDeadLetterQueue ="net.msmq://localhost/private/FDPDLQ"
durable="true" exactlyOnce="true" maxReceivedMessageSize="65536"
maxRetryCycles="2" receiveErrorHandling="Fault" receiveRetryCount="5"
retryCycleDelay="00:30:00" timeToLive="00:01:00" useSourceJournal="false"
useMsmqTracing="false" queueTransferProtocol="Native" maxBufferPoolSize="524288"
useActiveDirectory="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<security mode="None">
<transport msmqAuthenticationMode="WindowsDomain" msmqEncryptionAlgorithm="RC4Stream"
msmqProtectionLevel="Sign" msmqSecureHashAlgorithm="Sha1" />
<message clientCredentialType="Windows" />
</security>
<!--deadLetterQueue="System">-->
</binding>
<binding name="DefaultBinding" >
<security mode="None" />
</binding>
<binding name="FDService_EP" closeTimeout="00:01:00" openTimeout="00:01:00" deadLetterQueue="Custom" customDeadLetterQueue ="net.msmq://localhost/private/FDPDLQ"
receiveTimeout="00:10:00" sendTimeout="00:01:00"
durable="true" exactlyOnce="true" maxReceivedMessageSize="65536"
maxRetryCycles="2" receiveErrorHandling="Fault" receiveRetryCount="5"
retryCycleDelay="00:30:00" timeToLive="00:01:00" useSourceJournal="false"
useMsmqTracing="false" queueTransferProtocol="Native" maxBufferPoolSize="524288"
useActiveDirectory="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<security mode="None">
<transport msmqAuthenticationMode="WindowsDomain" msmqEncryptionAlgorithm="RC4Stream"
msmqProtectionLevel="Sign" msmqSecureHashAlgorithm="Sha1" />
<message clientCredentialType="Windows" />
</security>
</binding>
<binding name="FDChecking_EP" closeTimeout="00:01:00" openTimeout="00:01:00"
receiveTimeout="00:10:00" sendTimeout="00:01:00" deadLetterQueue="System"
durable="true" exactlyOnce="true" maxReceivedMessageSize="65536"
maxRetryCycles="2" receiveErrorHandling="Fault" receiveRetryCount="5"
retryCycleDelay="00:30:00" timeToLive="1.00:00:00" useSourceJournal="false"
useMsmqTracing="false" queueTransferProtocol="Native" maxBufferPoolSize="524288"
useActiveDirectory="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<security mode="None">
<transport msmqAuthenticationMode="WindowsDomain" msmqEncryptionAlgorithm="RC4Stream"
msmqProtectionLevel="Sign" msmqSecureHashAlgorithm="Sha1" />
<message clientCredentialType="Windows" />
</security>
</binding>
</netMsmqBinding>
<netNamedPipeBinding>
<binding name="Teletrac.EFX.Interfaces.FDService.IFDPRouter" />
</netNamedPipeBinding>
</bindings>
<behaviors>
<serviceBehaviors>
<behavior name="DLQServiceBehaviour">
<serviceDebug includeExceptionDetailInFaults="true"/>
</behavior>
</serviceBehaviors>
</behaviors>
<services>
<service name="Teletrac.Customer.Services.FDPDLQService.FDPDLQService" >
<endpoint address="net.msmq://localhost/private/FDPDLQ" binding="netMsmqBinding"
contract="FDPServiceRef.IFDService"
bindingConfiguration="DefaultBinding"></endpoint>
</service>
</services>
<client>
<endpoint address="net.msmq://localhost/private/fdmessageQueue"
binding="netMsmqBinding" bindingConfiguration="DLQServiceBinding"
contract="FDPServiceRef.IFDService" name="FDService_EP" />
</client>
</system.serviceModel>
</configuration>
This works great.
But if all endpoints are not available for a long period of time, and if service rolls message back to the DLQ for a long period of time, after a certain period of time service stops picking up messages from DLQ. I am not sure which configuration is responsible for this.
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Dec 15, 2010
We have a customer who are using HP Web Inspect to test for vulnerabilities in our software.
The web inspect tool is complaining about about error messages being returned when a request such as the following is made [URL].
The ASP.Net framework returns a page with the following text content and a 500 status code.
System.IndexOutOfRangeException: Index was outside the bounds of the array.
[code]....
but the error seems not be an unhandled error and so neither 500 page is shown.
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Aug 10, 2010
How to manage user messages to avoid hardcoding messages accross the web application.
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Jan 26, 2010
For error messages, validation faults etc you have
ModelState.AddErrorMessage("Fool!");
But, where do you put success responses like "You successfully transfered alot of money to your ex." + "Your balance is now zero". I still want to set it at the controller level and preferably in key-value way, the same way as errormessages but without invalidating the modelstate.
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Feb 4, 2011
I am using c#.net application in which I need to download a zip file using c# codebase.I am using the following code for downloading the file:
Response.ContentType = "application/zip"
Response.AppendHeader("Content-Disposition", string.Format("attachment; filename = {0}", System.IO.Path.GetFileName(sZipFileName)));
Response.TransmitFile(sZipFilePath);
HttpContext.Current.ApplicationInstance.CompleteRequest();
The zip file is transmitted but when I tried to open the zip file after downloading, I am getting an error saying " Cannot open the file : the file does not look to be a valid archive"
where am I doing wrong and how to get a zip file and extract it without any errors.
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Sep 23, 2010
From this webpage: http://abg.asso.fr/Page/Offer/SearchOffer.aspx , I want to have a link which shows me directly 50 job openings in a specific (Engineering) domain (the default is 5 jobs in all categories).I know that in ASP, I can transmit a variable value by
[Code]....
But it is not working.
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Jul 15, 2010
I have an ASP.NET 1.1 form gathering data on a public-facing site, within a DMZ. The data is represented by a serializable class. My problem is that I need to serialize, encrypt and transmit the data to a Web Service running on an internal server - the service logic should then decrypt and deserialize the data before writing the XML to a shared folder.
Can someone point me in the right direction? What's the most straightforward way of doing this?
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May 24, 2010
It's simple to do a webrequest, get the page and parse the html to get the title of the page. But I'm wondering if there is a more efficient way that is faster, and doesn't require downloading the whole html?
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Jan 16, 2011
I am new to databases and linq, so my problem may be considered trivial. I currently start all my db requests in each class with:
DataClassesDataContext db = new DataClassesDataContext()
Then I proceed to make whatever linq request I need within the method and carry on with the main application logic.
Now, two interesting queries:
1) I believe I have seen people wrapping db usage within 'using'. Such as:
using (DataClassesDataContext db = new DataClassesDataContext())
{
...
}
If this is correct, then doesn't it mean that my class can't use a member 'db' variable anymore, but rather those db requests need to be made within each function call? Also, what exactly would happen if I don't use 'using' within the calls?
2) Running my app with SQL Profiler enabled, I see lots of connections opening and closing. Does this means that each
DataClassesDataContext call makes a separate connection? It seems inefficient, so is the right way to actually make the DataClassesDataContext object a static within each class being used?
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Oct 28, 2010
What's the best way to do this? I have seen quite a few examples that use a Dataview etc. what is the best method. I'm thinking about speed issues when a grid has a few thousand records etc.
this is how I populate the gridview:
Code:
[code]....
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Jan 29, 2011
I have a requirement where 15 listviews have to be loaded on a web page.But only one shown at a time. Number of columns will be only 2 for each and Number of rows for every listview is very limited.The thing I am not able to decide is the sorting method.1. If I am using the datasource control, it automatically sorts my listview.2. If I am programmatically populating listview , I will have to sort my datatable and rebind to the listview.To use the second method I have to store the datatables in sessions.So taking that into consideration, will datasource control be more efficient ?
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Jan 19, 2011
Assuming a list of objects, each with an ID, what's the most efficient way of building a carousel, so that each object knows what its previous and next item is. The Last Item's previousId will link to the first item. The first item's previousId will link to the last.
I need the ID of the previous and the ID of the next, as this will be used to populate next and previous buttons on a web page.
I know I could iterate over them, adding placeholders for _next and _prev id, but what's the most efficient way to do this?
I figure my object should look like this:
class Item {
public int Id { get; set; }
public string ItemName { get; set; }
public int Next { get; set; }[code]....
I think I'm looking at this wrong way. Is there a better way of doing this?
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Jan 20, 2010
I am making a blog application and for the sake of my question I have 2 tables: Posts & Comments. I would like to loop through the posts and use a nested loop to display the comments relating to a specific post. Currently, I am using this code:
[Code]....
Obviously this is a simplified version. Is this the most efficient method of displaying this kind of data?
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Feb 4, 2010
I am outputting the entire HTML for my server control as follows:
public override void Render(HtmlTextWriter output)
{
output.Write(myStringBuilder.ToString());
}
myStringBuilder is a StringBuilder object that is manually built in a separate private method.Is this an efficient way to do it? Or is it better to pass the HtmlTextWriter to my private method and make multiple calls to HtmlTextWriter.Write()?
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Jul 22, 2010
I am looking at upgrading a realtime program ASP.NET C#, that takes very frequently updated data and moves it from one database to another.
Currently using a middle man app, that pulls from one and inserts into another using SqlBulkCopy.
Is it better to have the source db server write a flat file and the middle man collect from that flat file?
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Jan 18, 2011
I would like to use insert statement to the same table with different values, lets say 5 times. What is the efficient way to do this?
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Jul 28, 2010
I've an arraylist having 30000 items in it, what's the best way of creating a text file on the fly from an ASP.NEt page? Currently I'm using the code below but it times out with large data,
Using fileStr As New FileStream(sFileName, FileMode.Create, FileAccess.Write)
Using writer As New StreamWriter(fileStr)
writer.WriteLine("Error Messages") [code].....
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Jan 20, 2011
I'm starting to run a few ads on a website, and I'm trying to decide the best way to track performance.
Specifically,What's the most efficient way to count clicks? About the only way I can think of is to link the ad to another page with the ID of the ad as an argument (e.g. adserver.aspx?id=1234). The other page would then update the database and do a redirect to the advertiser's link. However, it seems inefficient to have to load a separate page for this. Are there any other options? Also, it seems like I might need to know stuff like how many clicks occurred in a given week. But storing a separate database row with a date for every single click seems excessive. Has anyone else done something like this? Would it make sense to maybe create a new row for each week and increment a counter for all clicks that occurred that week?
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Mar 8, 2011
I'm doing some custom code for a SharePoint webpart in C#. Specifically, I'm making a quiz, my main point here addressing the list that holds the question, answer choices, and correct answer.
At the last stage of the quiz I need to check the answers selected by the user against the correct answer in the list. Currently, I'm doing the following to check if each is correct, which I'm assuming isn't very efficient because it iterates through each question. Is there a method, specifically for the SPList foreach loop, that would be more efficient?
// 1. Store questions and answers in class
List<submittedAnswers> answeredQuestions = new List<submittedAnswers>();
// 2. From POST pull answered question IDs and answer IDs (which correspond to the question primary key and answer choice number both stored in the list)
// INSERT BEAUTFIUL AND EFFICIENT WHILE LOOP HERE
// 3. Loop through each question is list, if question was given, test if correct/incorrect
using (SPWeb myWeb = mySite.OpenWeb())
{
SPList answerList = myWeb.Lists[questionList];
foreach (SPListItem quizEntry in answerList.Items)
{
int pullAnswerId = int.Parse(quizEntry["Answer"].ToString()); // Pull answer number from list
int pullQuestionId = int.Parse(quizEntry["ID"].ToString()); // Pull primary key of question
submittedAnswers result = answeredQuestions.Find(delegate(submittedAnswers e) { return e.questionId == int.Parse(quizEntry["ID"].ToString()); });
if (result != null)
{
if (result.responseId != pullAnswerId) // If the response was different from the answer
incorrectAnswers++;
else
correctAnswers++;
}
}
}
// C# quiz grading magic here....
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Aug 2, 2010
I have a listbox on my site that is populated with data. I then have a textbox that is used to enter a search phrase and with each letter that is added the listbox is narrowed down or repopulated using javascript. I use one listbox to store all the items and a secondary showing the listing results. This makes it east to check against all items and then populate the second listbox with all the results according to the search.
Currently this process can cause a delay in updating the listbox (eg when the textbox is emptied all the items need to be repopulated from the listbox with all the data).
What is a quick and efficient way to perform this listbox search?
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Nov 9, 2010
A sample linq query from MSDN: var expensiveInStockProducts = from p in products where p.UnitsInStock > 0 && p.UnitPrice > 3.00M select p; Does this query select EVERY column from the database table immediately, or does it return some sort of pointer that retieves the actual column data on demand? ie. If there are 50 columns in my table and I only use a single p.UnitsInStock in my actual code, then am I retrieving 50 times more data than I expected?
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Mar 25, 2010
I am trying to do efficient paging with a gridview without using a datasource control. By efficient, I mean I only retrieve the records that I intend to show.I am trying to use the PagerTemplate to build my pager functionality.In short, the problem is that if I bind only the records that I intend to show on the current page, the gridview doesn't render its pager template, so I don't get the paging controls.It's almost as if I MUST bind more records than I intend to show on a given page, which is not something I want to do.
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May 6, 2010
Is there any efficient way for polling data to the server?I have to know if there's an update in the table tblalert. I used the PageMethods and setInterval in javascript to run the method. But the SQL Server having too much stress, lets say 200 users log at the same time... and the set interval is set to 3 secs
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Jun 24, 2010
I am wondering what the most efficient method is for retreiving a single cell of data from my database. I have a price table in my DB that I just need to look up one price at a time. Currently I load a dataset and call ds.tables(0).rows(0).item(0) for the value. I just want to make sure this is the best way do this.
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