Architecture :: Technology Guidance - Build Site With Client Side Hardware Interacting Controls
Sep 19, 2010
This is not a programming question per se, but rather an attempt to find the adequate technology to use for my objective. My mandate is to build an ASP.NET Web Application. However, on certain pages, some client-side information needs to be fetched by interacting with hardware on the client's computer, for example a barcode reader or an RFID tag reader. My first reflex was to think "ActiveX" controls with, perhaps, some AJAX coding to fetch the required values from said control. However, I am not sure if I am up to date with the latest tech trends. The solution I'm looking for will let me design a user control that plugs into my ASP.NET Web Application, lets me interact with client-side hardware, and can be automatically downloaded from the Web Application itself (I can't predict which computers will access my Web Application). Which technology(ies) should I go for?
I'm want to build web site in asp.net(because I know this language) in server side, and js (probably jquery) in client side, with Ajax technology. I heard that ASP.NET AJAX is too slow, if it's true (is it?) - what are the other options (to combine ASP.NET and Ajax) for me? Which tool combine all that technologies?
now i receive this error (sorry, it is in italian) :
L'assembly 'AjaxControlToolkit, Version=3.5.40412.0, Culture=neutral, PublicKeyToken=28f01b0e84b6d53e' non contiene una risorsa Web con nome 'AjaxControlToolkit.Common.Common.js'. Descrizione: Eccezione non gestita durante l'esecuzione della richiesta Web corrente. Per ulteriori informazioni sull'errore e sul suo punto di origine nel codice, vedere l'analisi dello stack. Dettagli eccezione: System.InvalidOperationException: L'assembly 'AjaxControlToolkit, Version=3.5.40412.0, Culture=neutral, PublicKeyToken=28f01b0e84b6d53e' non contiene una risorsa Web con nome 'AjaxControlToolkit.Common.Common.js'.
I am currently using some $common functions, like getContentSize() and so on.
Looking at the source code it seems to me that all the paths have been changed, but i cannot understand the right namespace to use with the latest release.
I have a text box in which I want only digits (either decimal or whole numbers). I have applied Required Field Validator and Regular Expression Validator on it.I have an Image Button, by clicking on which, I want this validation to be performed. But when I build the code, and clicks on Image Button, these validators do not work and I am redirected to the server side method of Image Button and after completing the execution of server side method, control comes to these validators and client side validation executes.I am fed up by finding solutions on Google and unable to find any solution.Please tell me of anyone of you know the solution that why server side code is running first and client side validation is executing after server side code execution.
I have been using properties and have idea that using properties with private fields we can implement validations and buisness rules in them.
But I am just thinking asp.net client side validation controls provide good strength and they provide good user experience as well. They can be used for any type of validation (using regular expression) on client side and their re-use is possible on server side. When validation controls are a must and they are powerful; is making properties not just wastage of time ?
I would like to disable all client side validation in an Asp.Net web site in order to test that server side validation is correct (i.e. I want to test against people altering the response or tampering with client script)Currently, I am either-Disabling JS in the browserManually disabling client validation for individual validators.
I was planning to utilize MVP, DDD, TDD, IOC, Dependency Injection, Repository , StructureMap etc but the timeframe is very tight and this can also be achieved in n -tiered architecture:
Technology:
Client Web Portal
ASP.Net /C#/SQL Server
Project Specification:
5 types of customers Template of service Dynamic Data Driven portal Modules can be activated/deactivated through management console Branding and customization Rapid deployment portals of future clients as well Portals willallow for customization Data reporting services: reports and BOBJ Ad hoc Query Value- Add services to the clients portal Each Clients welcome page can be customized by client as well How can I determine which Client is on "Welcome" page without them logging in? Create different URLS for each client base? how? Mobile Application services Localization Demo portal should be built and sent to client for testing rapidly
Database structure:
There will be core database which will be connected to 50-60 client databases depending on the login and other details.
What is the best approach in terms of data layer? since dynamic db connections will have to be implemented?
I have a user control which contains a CustomValidator which is used according to whether a RadioButton is checked or not (there are several RadioButtons, I'm only showing the relevant one)
There is some client + server side validation code (the server side code does exactly the same thing and is skipped for brevity)
<script type="text/javascript"> function ValidateDateFields_Client(source, args) [code]...
There are two instances of this control in the page. When running the client side version it hits the wrong one (the version of the control which is disabled). You can see from the generated HTML both are correctly specified. I'm not sure how .NET works out which clientside function to call given they both have the same name.
[code]... Do i need to add something in to scope it? What's the best way to achieve this? If I disable the loading of the second control everything works fine.
I have a list of items on an ASP.net page. That list is selectable in that whenever the user clicks on one, the page does a postback and the server code stores the index or some unique identifier of the picture in a ViewState property indicating that it is currently selected.
I would like to minimize the load on the server and therefore I would like to store the index or unique identifier representing the image in some way on the client side. The best way I can think to do this is to store said information in a hidden field ), however I had two questions about this before I go crazy:
Is this a security risk in any way, shape or form (i.e., exposing implementation details of the page)? Is there a better/best way to do this that is more industry-standard? Does ASP.net provide a framework to do this that is cleaner than my idea? Seems like this would be a fairly common requirement to me...
I've been designing a website which has a grid on the page. The grid has multiple comboBoxes within it. These comboboxes interact. ie When one value is changed by the user another one has it's value change or is disabled/enabled etc.I find in order to do this I have to use FindControl a lot. Like in the selectedindexchanged event of one combobox I'll need to find another comboBox.This seems rather a messy way of doing things. It also seems like it leaves the system open to errors the compiler won't find say if a combobox has it's id changed later on down the line.
I Getting A Problem In DataGrid's ItemDataBound Event. I Am Calling A JavaScript Function In DataGrid's ItemDataBound Which Retrun The CellIndex And RowIndex Number On Which UserClick After That I Am Re-Binding The DataGrid With jQuery Function After That ItemDataBound Event Not Working. I Want To Call The Same Function Again. Is Their Any Method To Call A Server-Side Function On ItemDataBound Event Except Client-Side Function..
I've been using a repeater to build a website's site map page by binding to the web.sitemap file. For example, to display 2 levels of links:
[Code]....
So far, everything works well. However, in some cases, I do not want to display certain pages in the site map. I've added a custom attribute to each node (nodisplay= 'true').How can i check for this attibute, and avoid it from being displayed by in the repeater.
i am currently working in a company in internal application, and going to build an online help desk system for company. And i've to create client and server view of the application.so can you please help me on this, will you please tell me what technologies will be needed to build this application.what are the best things i can add in my help desk system
I have a requirement of adding server side variables in client side and other way round. Because I need to set a value from client side using javascript and access the same in code behind page.
Suppose I'm building a StackOverflow clone using webforms ASP.NET and jQuery. The Question page has a question, several answers, and comments under each. Requirements:Users can post new answers and comments, and edit existing ones, without postbacks. No UpdatePanels; the AJAX calls retrieve just the JSON they need, not HTML fragments. The page loads with all existing answers and comments in place (no javascript needs to run to read the page).
What I'm trying to figure out is how to do this without having to maintain two sets of markup (one that's bound on the client using some form of jQuery templating, and one that's bound on the server using traditional WebForms).
I reordered some items in a listbox using Javascript. When I read the items in a postback in the code behind (ASP.NET), the order is in the original order. How do I get the same order as shown in the screen after Javascript manipulation?
I m using site login Control in my login.ascx file and disaplaying login control in Div so if there is login link in page and i click on that then Login Div will popup which is site login.May i know how can handle error like username or password is incorrect on client side instead server side?
I have to implement the print functionality on aspx page like on click of print image icon user will be able to get the print out of aspx page .aspx page will contain the server controls like textboxes , Gridview etc which one approach will be the best server side or client side printing ?
i can use escape() and unescape() functions by Client side easily, but the problem when i have use escape() method for peice of HTML , then i dont know how to unescape this piece of HTMl By Server Side not By Client Side. how i can unescape (escapped HTML) by server side?
I have a hidden variable and its value is being updated using javascript(client side) which I make a call from server side code. After making the call I am not able to retrieve the updated value from Server side variable. I went through this forum [URL] but not able find a way how to implement functionality with IFRAME. I am trying to call the client side code and retrieve the updated value from server side in page_load event.
