Web Services: How To Execute Custom Code Before Web Method Invoked
Mar 16, 2011
I have many webmethods in one asmx. I need to perform licence checking before some of this webmethods invoked. I can insert following code to each web method that needs checking:
if (!AllRight())
{
// badRequest
return;
}
Or I can insert complex filter to HttpModule to detect webmethod by URL. I need something like attribute for webmethod and place where I can handle it. Is there pretty good solution?
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May 12, 2010
I want execute below callback() method after completion of document.getElementById('btnDownload').click(); method . Now callback()executing immediatly. I want wait "Click()" process done then Execute callback(); method.
function LoadPopup() {
// find the popup behavior
this._popup = $find('mdlPopup');
// show the popup
this._popup.show();
// synchronously run the server side validation ...
document.getElementById('btnDownload').click();
callback();
}
function callback() {
this._popup = $find('mdlPopup');
// hide the popup
this._popup.hide();
alert("hi");
}
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May 10, 2010
I have a drop down in an ASP.NET page. Whenever the value of the drop down changes an ASP.NET AJAX request is made to the server. I also attached a jQuery "change" event handler to that list to execute some code when the value is changed. So, probably two different event handlers are being attached to the same drop down, and it's causing some problems, i.e., sometimes wrong drop down values are sent to the server. I don't know why is this happening but I think attaching two different event handlers to a same drop down may be the reason.
Can anyone tell me what is the problem here? If what I guessed is true, then is there any other way to execute some custom javascript code before asp.net AJAX request is sent ?
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Apr 3, 2011
I have a gridview which uses a stored procedure with session["UserName"] as a parameter to retrieve the records from the database.
Here is the code for that gridview Sqldatasource:
[code]....
lets say a particular user who has logged in doesn't have any records in that table on which this particular stored procedure is being executed. Then there won't be any records associated with gridview. So in this scenario: is there any method that gets executed or some exception is thrown, so that i can explicitly use that method/exception/property to display a message Label to the user like "No records to show !!"
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Feb 15, 2011
I'm trying to understand how to execute AJAX animation on an asp button that has to execute code on Postback. In other words, I have button with code behind that needs to be excuted, but at the same time want to be able to have one of animation extenders be applied to it. I understand that I need to use the BeginRequest Event, I'm just not sure how, or which javascript commands to use to call the ajax animation so the postback will still occur.
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May 12, 2010
I have the following page
[Code]....
Currently, only GenericOfflineCommentary's ExtractPageData() is firing. How can I modify this to first run OfflineFactsheetBase's ExtractPageData() and then GenericOfflineCommentary's?
edit: I'm trying to avoid having to call base.ExtractPageData() in every implementor.
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Mar 22, 2011
I have an ASP.NET (3.5) web page which calls a few web methods (SOAP based) using jQuery's .ajax method. The web methods implement 'ScriptMethod' attribute and return JSON data. The web service file (asmx) is local to the same project.
I noticed these web methods execute synchronously on the server which means they run sequentially and affect performance negatively, some methods are waiting, when some of them are slow.
I read this article and I am not sure if I understand that WebMethods which implement Scriptmethod can run synchronously only (they implement IHttpHandler not IHttpAsyncHandler).
If this is true, I might have to change the design. I am looking for other designs, maybe like using WCF, where the browser can call webmethods using JavaScript and the web methods run asynchronously on the server.
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Aug 2, 2010
I have a web app that needs to do two things at the same time. After a user clicks a button on the site, a javascript function needs to execute and while thats working I need the server side code for the button click to execute without waiting on the client side to finish.
To be more specific, the client side function takes about 23 seconds to complete, and while that is running the server side code promts the user for printing a document. So I need the javascript to run "in the background".
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Jan 11, 2010
language I want make a asp.net application for Send sms.(I have a getway that work webservice for send message ) . I have to solution for send sms. 1- send sms now(When submit send botton).There is no problem in this case 2-Schedule send sms : in this model User set a time that sms send in this time.I need a solution for schedule send.I save this sms in table until The desired time How can handle a method (for example every ten seconds) for check table in database and send sms ?
Note: I have a normal host in web .
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Jan 24, 2011
I am not sure how to explain this but I will give this a try. Before, we had an app running on windows XP and all the reports were working fine. Now, the app is moved to windows 2008 server. There is one report in this app that uses Microsoft Interop.Excel which is used by component one. Apparently, interop.excel is not supported in windows 2008 with 64 bit running. After doing bunch of research, we have two options - either write this report again or execute this report from XP.
I want to try the second one. The interop.excel works fine in XP. A copy of this app is on this server. What would be the best way to execute this report from windows server 2008? It looks like i would have to connect to the XP server, get access to the app and finally the function that executes the report. Is this possible?
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Jan 12, 2010
my question is if anybody know how to execute method when select some date in calendarextender because i need get some information when i select the date
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Feb 18, 2010
I've got an asp.net mvc application that uploads a file and stores them in one of the directories where the website is located.
My question is... When you execute HttpPostedFileBase.SaveAs() method saving it with the same name as an existing filename on the folder, does HttpPostedfileBase overwrite the file?
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Apr 19, 2010
I have created the form and html controls dynamically in the page load method of the page.
like below :
Dim form As New HtmlForm
Dim btnSubmit As New HtmlInputButton
form.Action = http://www.facebook.com
form.Method = "POST"
form.Name = "form1"
btnSubmit.ID = "Submit"
form.Controls.Add(btnSubmit)
what I want is that without clikcing on the submit button it should display the target page which is given in the Action for example 'www.facebook .com'. how can I achive this by programatically.
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Mar 4, 2014
I want to update database value on Browser close.
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Dec 2, 2010
Boss comes in and demands that we change an existing dataload process written in .Net 2.0 to call stored procedures on two different servers rather than just one. In his mind (not a programmer) this should be a short overnight process. We have about 60 different SQL Commands that we need to change and test. Is there a simple way to do this that I can't think of? If there isn't we will use something like replication or database mirroring, which is my preference but is likely to get the cold shoulder from my boss, especially since I have never set these up before. A function that takes a SQLCommand as its argument and then iterates through as set of connections to execute the SQLCommand. Change all stored procs to call the same stored proc on a linked server.
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Jan 14, 2014
I have a method which perform following task
1.save file to a folder
2.save data to database
3.send email to client
I want if any exception occur then non of them will work.
currently it save file even if there is some exception in databse connection or sending email. Which make my folder heavy.
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Aug 5, 2010
I have below code in aspx.cs but I need to move this code to the web services which may not be able to share session with UI.
How can I do??
If (Session["Pick1#" + Productid.ToString()] == null)
{
}
else
inventoryList.AddRange((Inventory.ListInventory)Session["Pick1#" + Productid.ToString()]);
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Jul 6, 2010
This thread is more about learning, actually I have a web service which just returns string. I have been calling this service from code behind and updating lable with the string received from the web service.
Now I want to call web service using JavaScript. As far as I know, I have to add <asp:ScriptManager..../>. Second I have to add [ScriptService] to the web service.
But I don't wat to add <asp:ScriptManager..../> and [ScriptService].
Is there any way to call web service using javascript without adding <asp:ScriptManager..../> and [ScriptService]
Also, I am kind of lost in SOAP, JSON. I am not getting where I actually use SOAP, JSON. Using <asp:ScripManager../> and [ScriptService], I actually didn't see use of SOAP, JSON.
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Nov 29, 2010
I am creating a custom control by inheriting a server control, say LinkButton. There are properties like "BorderColor" available in LinkButton. Let's say, I don't want this particular property to be available when I create an instance of the custom control.
I want to completely hide this particular property (I don't want to override it but disable it.)
My code is as follows:
[Code]....
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Apr 21, 2010
I have created my own custom role provider class "SGI_RoleProvider" and configured properly.
Everything is working fine.
Suppose that I have added a public method say "SayHello()", then how can i call that. Because if i am using Roles then the method is not displayed. If i am forcefully using that Roles.SayHello() then compiler gives the error.
how can i call this. Because creating a new instance of SGI_RoleProvider is meaningless.
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Aug 10, 2010
When my page is first loaded i receive error message stating to the effect
cant find Email for GetInvoicesByVendor.
this refers to a function in another class file:
Public Shared Function GetInvoicesByVendor(ByVal Email As String, ByVal vendorid As Integer) _
As IEnumerable
yet i only want to execute this function during the button click event and not when page is first loaded with the following parameters:
vendorid.Text = 1
txtcustomerid.Text = test@yahoo.co.uk
My objectdatasource is declared as follows:
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server"
OldValuesParameterFormatString="original_{0}"
SelectMethod="GetInvoicesByVendor" TypeName="InvoiceDB">
<SelectParameters>
<asp:ControlParameter ControlID="txtcustomerid" Name="Email"
PropertyName="Text" Type="String" />
<asp:ControlParameter ControlID="vendorid" Name="vendorid" PropertyName="Text"
Type="Int32" />
</SelectParameters>
</asp:ObjectDataSource>
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Jul 29, 2012
I have Website Application , in which i have method ..i want to execute this after every 10 days automaticlally ..what is the concept of doing this , provice some code etc. if possible ..
my method includes some server side processing..
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Feb 17, 2011
I have created a custom control as can be seen below. this custom control will be used by alot of web form. The question is how to override CheckAllData method in each webform, so i can write my own checking in each webform.
[Code]....
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Mar 21, 2010
I have seen a lot of examples posted on how to create a Custom SiteMap Provider which is directly linked to the Business Logic in the Presentation Layer, however, I would like to write a Custom SiteMap Provider which inherits from StaticSiteMapProvider and
is driven by the database. In addition, I would like to expose all of this logic behind WCF Services.
Are there any samples on how to implement a Custom SiteMap Provider over WCF Services since I am having a hard time trying to figure out exactly how to put a solution following this architectural pattern together.
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Mar 5, 2010
I'm about a custom WSDL File Generation for a Classic ASP.NET XML Web Service.
The issue is I didn't find out how to specify mandatory parameters in my WSDL, since ASP.NET Web Services are generated on ?WSDL location, I thought I would do that from Web Method Annotations, but I found no issue.
Also I have been on a pose where the developer could hide WSDL Generation by specifying a custom WSDL Binding. But in my case I need to let other system access ?WSDL location with a Customized WSDL.
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