WCF / ASMX :: Best Way To "ensure" That A Web Service Is Only Called From AJAX On A Specific ASPX Page?
Oct 26, 2010
I have an ASPX page which hosts a Custom Control. That custom control needs to call an ASMX web service. I would use a PageMethod, if the fact that I'm calling from within a Custom Control didn't preclude that. I'm looking for some guidance on the most effective way to try and lock down the ASMX call such that it will only succeed for my users calling it from my ASPX page - and not for anyone trying to call it from elsewhere. I've seen various ideas around session variables and so on.
i have designed a web service which would create 2 csv files on the system. I want to send the links to the location of the files as an url attachment over the aspx page.
like : http://myserver/download.aspx?file1=C: empimage1.png&file2=C: empimage2.png
the output from the asmx web service is : [Code]....
where xx.xx.xxx.xxx is the ipaddress. this is the whole output i get from the webservice.
how do i get the aspx page to send the attachment in the format i mentioned above? I have added an asp website to the project and added the webservice as a web reference to this but i do not know how to get the location from the xml output file of the webservice result.
I am maintaining a web site project in VS2005 and have to call a new web service on a remote server. I've done add web reference, and created the .wsdl and .discomap files in the app_webReference folder. When I try to create a object representing the web service in the code ( wsnamespace.serviceName ws = new wsnamespce.serviceName(); ) the code wouldn't compile.
The web site project is already calling other web services. When I right click on the type representing the web service and "go to definition" it takes me to a proxy class (derived from of course SoapHttpClientProtocol) in the metadata. I think this is what's missing for the new web service i'm trying to call. Have I missed any steps?
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)
if 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
I am new to WCF, I was using web service asmx before. I have trouble on making my wcf JSON ajax service work through http like asmx.Could you help me see what wrong in my code?My WCF services are defined in my website application folder. My aim is to call this service in my aspx page java-script code and return complex object back as JSON to my javascript. I have no problem on doing this through classic asmx web service.
When I try to test it through my browser by type this in the URL , URL-http://localhost:3849/WebServices/Account/WCFCompanyService.svc/GetAll. it return "Method not allowed."
But if I type just this URL-http://localhost:3849/WebServices/Account/WCFCompanyService.svc, it return this:
WCFCompanyService Service
You have created a service.To test this service, you will need to create a client and use it to call the service. You can do this using the svcutil.exe tool from the command line with the following syntax:
This will generate a configuration file and a code file that contains the client class. Add the two files to your client application and use the generated client class to call the Service. For example:
C#
class Test { static void Main() { HelloClient client = new HelloClient();
I am using JQuery & JSON (POST) to call webmethod. However I can call only webmethod located at aspx file but not in asmx file Below are sample codes
CustomValidate.asmx Imports System.Web.Services Imports System.Web.Services.Protocols Imports System.ComponentModel Public Class CustomValidate Inherits System.Web.Services.WebService 'ACCESS VIA JSON <System.Web.Services.WebMethod()> _ Public Shared Function AJAX_Test(ByVal date1) As Boolean... Return True End Function End Class Javascript: JQuery JSON function isDates(source, arguments) { var isValidDate; $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", url: "CustomValidate.asmx/AJAX_Test", data: '{date1: "' + arguments.Value + '"}', dataType: "json", async: false, success: function(result) { isValidDate = result; }, error: function(httpRequest, textStatus, errorThrown) { alert("status=" + textStatus + ",error=" + errorThrown); } }); arguments.IsValid = isValidDate; }
It always return javascript undefined error. But if I put the AJAX_Test webmethod in aspx page and replace the url: "CustomValidate.asmx/AJAX_Test" to "mypage.aspx/AJAX_Test". It works fine.
im using asp.net for my webpage. im also using the login control too. i want it so when the user types in the correct user name and password, it redirects to a new page called test.aspx. i dont want to use login view.
A Login.aspx has been created to enforce security on several forms of a web site.How can it be best called by each form at page load and return to that form after succesful login? How could that requirement be declared in web.config?
I am trying to call an asmx service using the jQuery ajax call-
[Code]....
I have double checked the url of the service and spelling/case of the name of the method as well as the parameters in the dataStr.
I still get the error-<b> Description: </b>HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. review the following URL and make sure that it is spelled correctly.
A customer wants us to create an ajax-enabled web application that can be used to manage their IT environment (Active directory, mail, file security, ...). However, as the team that will support the web application does not know anything about these IT systems, they would like to split the coding so that all interfacing with the IT environment is done via PowerShell, which is known by the administrators of these systems. This would mean that if new functionality is required, the web team can just create an additional web page and interface and use PowerShell scripts that get created by technically skilled people in that specific topic (ie mail administrators). I don't see an issue using this approach for requests like adding a user where latency is not an issue, but I do wonder if this is feasible for interactive content with Ajax.
Ie I would like to implement a google suggest like search for AD users. This would mean that ie for every x keystrokes (or x seconds whatever approach I implement) an Ajax request will be made and the web application or web service will than use PowerShell to get the data. Taken into account that up to about 75 users can use this feature, is this something that would work? Not only performace-wise but also the number of connections (I read about the Powershell 5 remote session limit but also that it could be put to a higher number)? The example above is probably the most resource heavy Ajax requests (and can be optimized by caching), so taken into account they don't want this nice feature, are basic PowerShell scripts in ajax request really an option. My gut feeling is telling me this is a no-go, but I don't want to exclude the option just because it's not something I usually would do.
I have a page that allows visitors to register for an account, but I want this page to automatically redirect to a "registrationClosed.aspx" page on a specific date...
Ok so I am trying to setup a WCF web service. I thought I had my .svc and webConfig ready to go, but when I hit this service all I get is a blank page.
I have created a dynamic web page . It gets loaded using a file keys.txt. This file holds the keys which are used to display a web page like panels order, text of labels , number of buttons and so on..It is consuming a web service written in delphi. All works fine but when 2 users try to access this service simultaneously then a error is displayed (Internal Server Error 500) "Access violation at address 0040404C in module "accelerate_gateway.dll". Read of address 00000000"Accelerate gateway is the name of delphi web service.It seems to me the problem of multi threading in delphi service ??But I have not done any multi threading in client asp.net page as well. ??It simply creates web service object and access its methods.As I am using a file contents to load a page, so I am concerned if it can create trouble as well ?? . Although I have used FileShare.ReadWrite in it.
.NET with VB I have a simple Gridview written with bound columns that gives a summary of all projects assigned to the user viewing the page.
I am struggling with passing the value of my project_ID column of a row that is clicked. I have looked around all day at different things, one involved using TemplateField with and ItemTemplate instead to fill my coloumns in stead of BoundField. This worked nicely to draw my Grid with the correct data from my datasource. I still struggled with two things.1. Selecting the row either button or ondoubleclick like event that runs VB code on my .aspx.vb page 2. Then the code to set a variable to the value for my project_ID columnThis is so frustrating, this was soooo simple in MS Access that was an on doubleclick event. That I simple set up set the project_ID.value = gblproject_ID and then called the new forum with the datasouce of that form filtered on the gblproject_ID. I am starting to think moving my MS Access DB online to .NET is far over my head.
I have a web service which is running fine when i call it from a handler page (.ashx).
My web service returns a zip file.
But when i call the same code from my aspx page then i get a corrupted zip file. Code for calling is below and is same in both ashx class and aspx page.
