WCF / ASMX :: Regarding Web Service Return Types?
Jun 24, 2010i have 10 employee objects.I want to return these 10 object from a web method to web service client.
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Similar Messages:
C# - Methods With Nullable Types Not Working In ASMX Web Service Using GET
Mar 14, 2011I have an ASMX Web Service set up to use the HTTP GET method. Simple methods which take basic String and Int parameters are working ok, and I can call MyService.asmx/MethodName?Param=Value and get a response back in XML.
However, when I have a method which has a nullable Int (i.e. int?), I get this error:
< Method Name > Web Service method name is not valid.
The error message is confusing, as the method does exist, just not in the GET scope. I presume this is because a nullable type is too complex to be passed via the URL, but I can't find any documentation or SO posts on this.
I appreciate that complex types like Lists or custom classes etc will not work using GET, but I would have assumed that a simple nullable int or nullable datetime could be handled natively, simply by detecting whether it was omitted from the URL. Guess it's not that simple!
WCF / ASMX :: Web Service - Return XML
Jun 10, 2010I have a web service that originally returned a string containing text formatted as XML. I was contacted by the programmer who is going to be consuming the web service, and he asked if I could make it "just XML" and not a string. I converted the web service so that it returns an XMLDocument object, and it seems to be returning data properly. I would just like to erify, however, that the XMLDocument object is what the other programmer was referring to when he said "just XML," and that the XMLDocument can be universally consumed by any programmer, regardless of his or her programming environment.
View 4 RepliesWCF / ASMX :: Return More Than One Value From Web Service
Oct 13, 2010I am new to web service... I have created a simple web service to add a record to sql server by passing a parameter and returns true or false once done. It the same time, I want to return the customer_account_number value created on the sql server.. so basically I want to return the true and false and one (or more) additional values.
View 5 RepliesReturn Pure XML From Asmx Web Service?
May 6, 2010I want an asmx webservice with a method GetPeople() that returns the following XML (NOT a SOAP response):
<People>
<Person>
<FirstName>Sara</FirstName>
<LastName>Smith</LastName>
</Person>
<Person>
<FirstName>Bill</FirstName>
<LastName>Wilson</LastName>
</Person>
</People>
WCF / ASMX :: How To Return XML Structure From A Web Service In Page
Mar 24, 2011I have a problem to connect my ASP page with a Web Service.
I'm going to explain the situation:
VB: WEB SERVICE: service1.asmx.vb (http://localhost:1234/Service1.asmx)
[Code]....
FROM ASP page
I have not any problem to receive the string from the SECOND function
However, When I call the FIRST one I receive an error:
"Microsoft VBScript runtime error (0x800A01C2) the wrong number of arguments or invalid property value argument"
I use this object: recXML = CreateObject("Msxml2.DOMDocument")
WCF / ASMX :: Max Return Size Of String From Web Service?
Feb 14, 2011I have a web service that is declared like this.
[Code]....
Function inside the service simply returns string separated by some delimitor. This string is then used by JS function to assign to a jQuery datatable. Is there a maximum limit on size of this string? I have about 2000 rows with 6 columns each. I get an error (failed handle) when I return them all. But if I do only top 500, it works fine.Is there any size limitation?
[WebService(Namespace = "http://tempuri.org/")]
WCF / ASMX :: Return JSON Data From A 2.0 Web Service?
Sep 10, 2010Just ramping up on JSON and JQuery and returning data to a ASP.NET web page from a web service using Ajax. The JQuery part is pretty straight-forward. However, when trying to return JSON formatted data instead of XML from a 2.0 web service, I'm stuck. The web service does have the System.Web.Script.Services.ScriptService attribute, so I can hit it via JavaScript; however, the web service always...always...returns data in XML format, no matter if I explicitly say I want JSON as the datatype in my JQuery code. So I don't know if this is an issue with the web service or the JQuery code. I posted this here, but realize that the category could be incorrect depending on where the issue is. Is there no way to return JSON data from a 2.0 web service? It's a production web service, so I can't change the code unfortunately.
View 3 RepliesWCF / ASMX :: WCF Data Service Out Put Not Return Correctly?
Sep 28, 2010I am consuming wcf Data service in client application following way, when i execute SP, some of the columns are repeating with same value,
DataServiceContext context1 = new DataServiceContext(new Uri(serviceURL));
string strparam = "emailid='" + paramemail + "'& LocalTitle='" + paramtitle + "'& ColorGrouping='" + paramcolor + "'";
string url = serviceURL + "GetSearchResult?" + strparam; [code]....
C# - ASMX Web Reference Not Updating After Service Return Type Updated?
Feb 21, 2010I have a webservice - called MyCompany.WebService1
I reference this using a web reference in my ASP.net web application.
Theres a method called "GetDeal" in this web service, that returns a "Deal" Object.
The deal object currently looks (for example) like this:
[code]....
This class is in a different assembly: MyCompany.Model
The web service references this assembly.
In my web app, I can call the GetDeal method. This returns Service1.Deal (service1 is just the name of the web reference)
I can access both properties above. I have now changed the Deal class, and added a couple more properties.
However, I can't see these new properties in my web application. I've updated the web service in the web application. I rebuilt the web service several times, tried removing the MyCompany.Model reference and re-addding it etc...
I can't figure out what has changed... This was working - I have changed the model before, and it's updated the reference correctly...
WCF / ASMX :: How To Write A Service To Return The Filenames Starting With A String
Feb 6, 2011I have number of files stored in a folder.
I want to write a wcf service to ruturn a list of filenames based on the text typed in a text box.
The structure of the method i need is something like this :
[Code]....
The requirments is to return only the filenames that starts with the typed text. Only the file name part is required not the full path.
WCF / ASMX :: Publish Enum Through Web Service Without Being Param/return Type?
Apr 30, 2010I have a webmethod that has three parameters:
public AuthenticationResult Authenticate(Enum type, string userName, string password) But the problem I had is that if a null/invalid enum is entered for the type variable it throws an error message.
So the obvious solution is to use a string/int instead but I am cannot do this as current users already use the existing webmethod.
So i was thinking:
public AuthenticationResult Authenticate(object type, string userName, string password) and handling the casting myself but the problem I had with this is that now my users do not have access to the Enum type.
So my question is can I publish the enum type without having it as a parameter/return value? Allow the client to access the Enum so they can pass it into the method. Would using a method that returned a type that was my enum work? Or is there a way to catch this custom error: (I dont think so as it appears to be on the client end when converting Enum to xml). The error is: (System.InvalidOperationException: There was an error generating the XML document. ---> System.InvalidOperationException: Instance validation error: '45465' is not a valid value for Enum.)
WCF / ASMX :: Return Dynamic / When Returns To Aspx Error At Aspx(no Exception Gets Caught At @ Service)?
Feb 9, 2011In our project WCF service is acting as our BLL.
i had scenario where i had to fill list of object class without knowing its type see code:
Added contract
[OperationContract]
dynamic GetReferenceTableData(string tableName);
method in service:
public dynamic GetReferenceTableData(string tableName)
{
try
{
dynamic tableData = ReferenceTableDAL.GetReferenceTableData(tableName);
return tableData;
}
catch (Exception ex)
{
throw;
}
}
method at DAL(ReferenceTableDAL):
public static dynamic GetReferenceTableData(string tableName)
{
Database db = DatabaseFactory.CreateDatabase(Flags.ConnectionStringKey);
DbCommand dbCommand = db.GetStoredProcCommand("USP_GETTABLEDATA");
dynamic objDynamic = null;
if (tableName.ToLower() == "a")
{
objDynamic = new List<A>();
}
else if (tableName.ToLower() == "b")
{
objDynamic = new List<B>();
}
else if (tableName.ToLower() == "c")
{
objDynamic = new List<C>();
}
try
{
db.DiscoverParameters(dbCommand);
dbCommand.Parameters["IN_TABLENAME"].Value = tableName;
DataSet dsTableData = db.ExecuteDataSet(dbCommand);
if (tableName.ToLower() == "a")
{
foreach (DataRow dataRow in dsTableData.Tables[0].Rows)
{
objDynamic.Add((A)dataRow);
}
}
else if (tableName.ToLower() == "b")
{
foreach (DataRow dataRow in dsTableData.Tables[0].Rows)
{
objDynamic.Add((B)dataRow);
}
}
else if (tableName.ToLower() == "c")
{
foreach (DataRow dataRow in dsTableData.Tables[0].Rows)
{
objDynamic.Add((C)dataRow);
}
}
}
catch (Exception ex)
{
throw;
}
return objDynamic;
}
@ Aspx
try
{
using (DataServiceRef.DataServiceClient petService = new DataServiceRef.DataServiceClient())
{
dynamic tableData = petService.GetReferenceTableData(tableName);
//tableData is null ,exception
}
}
catch (Exception ex)
{
throw;
}
There is no exception at dal or service end when i debug list gets filled ok but when returns to aspx error at aspx(no exception gets caught at @ service) but exception at aspx i.e:
Message:The underlying connection was closed: The connection was closed unexpectedly.
Stack Trace: at System.Net.HttpWebRequest.GetResponse()
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
How To Return Two Types Of Objects In MVC View
Mar 2, 2011I have say class/ojbect one which I am returning as details. But then there is a second class that is related to the first that I want to list (and have an option to look at the details). How do I get return both of those?
Example is like in an item as the main piece but there may be details or other items that are related to the main item. I will select them with a linq query but then how do I return them to the same view?
Do I need to have some sort of partial or other form to display the second object type? I don't see where returning the view I can return both.
My thought for right now is to create a new class that contains both of the object types but I know there has to be a better way.
Return Multiple Types In Method's Signature?
Oct 13, 2010I have two methods that do the similar thing. There are small differences here and there, which I can control by passing arguments to them when I call them, so I can effectively merge them. However one returns a string, and the other one an ArrayList. On the top of my head, I could merge them and return an Object, and then get the information I need. Is there a way though to return multiple types in the method's signature? What's the proper way to implement this?
View 5 RepliesCan Return Multiple Content Types Per One HTTP Request
Jul 31, 2010Reporting system has list of available reports on a web page. When user clicks on a report new browser window opens, server starts to prepare report (winword document) and then sends it back after 2-10 seconds.
Code in the handler looks like the following:
context.Response.AddHeader("Content-Disposition",
"attachment;filename=report.doc");
context.Response.BinaryWrite(reportDocument);
Is it possible to prepare html content immediately send it back and then continue with time-consuming report preparation not closing connection?
Declare Return Type Of The Function When There Are Two Possible Returned Types?
Jan 25, 2010I have the following statement, I want to turn it into a Public Shared Function :
If isEmployee Then
Dim employeeInstance As New Employee
employeeInstance = GetEmployeeInstanceByUserId(userId)
Return employeeInstance
Else
Dim studentInstance As New Student
studentInstance = GetStudentInstanceByUserId(userId)
Return studentInstance
End If
Public Shared Function GetWorkerInstance(Byval isEmployee as Boolean) As ...(not sure what to write here)...
There two possible return Type. I'm not sure what I should declare for the function return type.
Architecture :: Method Return Types Object Vs String/bool
May 27, 2010If I'm returning an object, then it's pretty straight-forward. However, if I'm just trying to return whether or not the method was successful or not, what's the best option? Sure ... bool seems obvious - but what if you need to debug or get some additional details out of the method than just "yes/no"? Well that's where a string becomes more obvious, right? You can leave it empty to say that the method was successful or chock it full of details in the case of an error. But this can make it less intuitive to others who may have to run your functions and it also jumbles up everything you wanted to pass back into one large string.
View 3 RepliesAJAX :: JQuery Xml Compatible Page Method Return Types?
May 5, 2010I have .aspx page methods with return type of string, which work great. I am using some jQuery ajax, and some .NET Ajax "PageMethods.methodName" syntax from the client side to successfully call these page methods. I need to return xml from a page method.... I would LOVE to be able to return system.Xml.Linq.XElement type from page method. I get a serialization circular reference error when I attempt to return XElement or XDocument. I don't really want to return XML.ToString() to client, and then convert string to xml in javascript. What return page method return type(s) would allow me to retrieve xml with jQuery ajax call? I know json is the alternative, but will not give me what I need this time.
View 3 RepliesWCF / ASMX :: Finding Information About Data Types
Aug 26, 2010Well i am just trying to test interoperability between ASP.net And Java web services, wanted to know what are the INTEROPERABILITY issues concering DATA TYPES that are there between the 2?
View 3 RepliesWCF / ASMX :: Custom Object Types And Empty WSDL
Dec 28, 2010Using C#, ODP.NET and ASP.NET Web Services:
ClassA is a custom class generated from a "type" in oracle database.
ClassB is a custom class generated from a "table of type ClassA" in Oracle database.
The exposed service includes a login procedure which gets a username as input parameter and returns object B. Debugging the login procedure I can see that the data is retrieved from the database but not printed in the wsdl..
[Code]....
My ClassB definition is as follows:
[XmlInclude(typeof(ClassB))]
public class ClassB : INullable, IOracleCustomType, IXmlSerializable
...
similar definition holds for ClassA as well. the generated wsdl is :
<? xml version="1.0" encoding="utf-8" ?>
<ClassB xmlns="http://tempuri/org" />
and no data printed out. What may be the problem?
Visual Studio :: Why Javascript Functions Created With Declared Return Types Are Not Giving Intellisense Hints
Aug 13, 2010I am trying to figure out why javascript functions I create with declared return types are not giving me intellisense hints. See code below, specifically updateNextItemTime in Sample.TodoList.
[Code]....
WCF / ASMX :: Create Web Service - How To Web Page Call Sales_Services.asmx
May 5, 2010if i have the web application with many pages like add order page, edit order page, and delete order page actually they also interact with the Sql Server 2008 and i also create web service page call Sales_Service.asmx. i know just i need to put something like query into Web Method in Sales_Service.asmx but i have a lot of queries, i don't know which query i should put into it and how the web page call the Sales_Services.asmx
View 2 RepliesWCF / ASMX :: IIS Memory Increasing For Each Client Request In Asmx Web Service?
Nov 8, 2010A customer reported that our asmx web service is continually increasing in memory (mem usage as well as private bytes). We are able to reproduce the problem in our lab with Windows 2003 Server SP2 (fully patched) on some of the machines. The customer is using Windows 2008.
We created a Hello World web service targeting the 2.0 framework built under VS2005 SP1 and a test client that continues to call it. The memory increases steadily - approximately 40K per client request. If the test app is paused, the memory remains the same. When it is closed, the memory drops. Explicit calling of GC.Collect does not drop the memory.
We have run the memory profiler on the service and the leak is all native memory. We have uninstalled/re-installed the Framework on one of the machines but no difference. To our knowledge all of the security and IIS settings are not modified. We have compared app pool, default web site and virtual directory properties to machines that have no problem and they are identical.
Possible To Return Large Data From WCF Service To Web Service
Feb 3, 2010we have console-hosted WCF Service and ASP.NET WEB Service (on IIS).
After some tough operation WCF Service must return some data(large data) to ASP.NET Web Service for next processing. I tested on small results - everything is ok.
But after testing on real data(serialized result object is near 4.5 mb) error occurs on ASP.NET Web Service (which is client in wcf-client-server communication).
Messages size are configured by next binding (on server and client):
NetTcpBinding netTcpBinding = new NetTcpBinding();
netTcpBinding.TransactionFlow = true;
netTcpBinding.SendTimeout = new TimeSpan(0, 4,0, 0);
netTcpBinding.Security.Mode = SecurityMode.None;
[code]...