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.
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Aug 27, 2010
Service Function Getting Called Twice?
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Apr 8, 2010
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.
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Dec 19, 2010
I have this function in aspx page.
[Code]....
and I call this function from JavaScript as below:
[Code]....
I want to know what is this technique called and what is the advantage of calling the function on that way
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Aug 30, 2010
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?
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Feb 9, 2011
In 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)
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Jun 18, 2010
I have a following php web service (nusoap-server-struct.php):
[code]....
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May 5, 2010
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
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Nov 11, 2010
When trying to edit the word before the delimiter the service method is not even called in IE but works fine in Chrome.
As an example, while '$' is set as a delimiter;
$csAux.Value$csNeedsPO.Valu
Now, editting the word
csNeedsPO => the autocomplete populates as expected succesfully.
csAux.Value => doesnT trigger the method in the background.
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Nov 3, 2010
I have spent a couple of days on this one. I have an ASP.NET website that has Linkbuttons on
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on the Default.aspx page is clicked it will connect to the link in the WebService which will load the News,
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The problem is I can't get the LinkButton to execute the Link in the WebService. The link will call the page up
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[code]....
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Jun 22, 2010
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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:
svcutil.exe URL-http://localhost:3849/WebServices/Account/WCFCompanyService.svc?wsdl
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();
[Code]....
This is my Ajax-enabled WCF service code:
[Code]....
This is the web.config service model setting
[Code]....
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Jul 3, 2010
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);
}
});
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}
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Jun 15, 2010
I am trying to call an asmx service using the jQuery ajax call-
[Code]....
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in the responseText of XMLHttpRequest, above.
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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.
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Jan 24, 2011
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...
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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.
[Code]....
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Mar 24, 2011
I 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")
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Dec 14, 2010
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Aug 3, 2010
how to invoke or use web service in our default .aspx page ?
i used following line to call webservice but its not responding,
1. service.useService("Webservice.asmx?WSDL", "UserDetails");
give solution for this problem.
2 style="behavior:url('webservice.htc')"
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Oct 1, 2010
My code below
BtnClick
YahooSample();
public void YahooSample()
{
HttpWebRequest request = WebRequest.Create("http://developer.yahoo.com/yui/") as HttpWebRequest;
[Code]....
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.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.
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Does anyone know where I could look to find how to create a simple login page.aspx via WebService?
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Sep 7, 2010
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.
[code]....
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