Implementing .Net RIA Services With Silverlight3 Using Only Existing Code / Classes?
Oct 20, 2009
As my latest questions have stated, i am in a process of researching on Silverlight 3 and its application as a suitable RIA solution to a pre-built project a client of ours wishes to webify. And my experience in .Net and silverlight is about 3 - 4 weeks.I have now become aware of .Net RIA Services. I require to use an existing VB class; which was created as a quick wrapper class to emulate a small piece of the client's application code. This is used as a proof of concept. It contains one function which uses the client's DLL files to return a simple data type This class has already been used successfully with Flex/Weborb combination.I unfortunately do not have enough knowledge or experience in Silverlight/RIA Services to grasp what it is i have to do to get the file working. All the examples I find online only specify the method where you use a database as dataSource etc.Could you please inform me how i would go about implementing RIA Services with Silverlight 3, using existing code/classes with no DB? Or could you point me in a direction for further research on the matter?
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Aug 10, 2010
Is it possible to automatically insert a Code Snippet when an interface is implemented? If so, how do you do it? I am looking for something similar to when you implement IDispoable in VB.[code]This will be used by web forms when transfering parameters from one page to the next using Server.Transfer
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Jun 25, 2010
So say I define some interface, and that interface has members that need to be implemented under some idea, and I then implement this interface on a class that already has those members defined. How do I NOT receive errors about having to implement said members despite them already being implemented (because I didn't type the oh so ridiculous 'implements IMyInterface.foo').
For example say I have an interface that defines the event KeyPress, and then I have a custom Form that implements this interface of mine. It throws an error. VB is the 5th language I've worked in that uses interfaces... and up until now they've all treated interfaces relatively the same. This is the first time I've seen this not allowed. What perplexes me more, is it IS allowed in other .Net languages. Just not VB.
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Aug 10, 2010
Can partial classes be used for web-services or there is some other way to implement it ?
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Aug 27, 2010
How to call the .net windows service from VB application
I have only the executable for VB application. Through the exe , I am able to view the .Net service, but it does not allow to install the .net services.
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Jan 19, 2010
is there any reason why we couldn't add/extend an interface to an already existing class?
i believe this would be v useful. it would be like drawing links from my class to already existing classes, and drawing links from already existing classes to already existing classes
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Sep 23, 2009
When you develop a class library that will be used by others, are there any guidelines on how you decide what namespace to put it under? I often find third party classes just use the company name as the root namespace but I was also wondering if it is frowned upon (or even possible) to add one of your own classes to an existing framework namespace.
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Nov 18, 2009
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EDIT: The above class is just an example of what could be returned from a web service. I won't have access to modify it at all, sorry if I didn't make that clear.Is it possible to somehow make a clone this class, so that it retains all of the properties values, but hides the fact that there is a Public function?I'd like to be able to take some existing classes we retrieve from a web service(which we didn't write) and be able to pass them on for use in an application, but without exposing the functions. I don't want to go down the route of creating my own classes that specifically define each property and write the values in (due to the sheer size of some of them), so I'm looking to see if there is anything dynamic I can utilise (maybe there is a way using reflection?).
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Oct 15, 2011
I seem to be having a problem with controls that I am creating as new classes (not UserControls) inheriting from an existing system control. Everything seems ok while I create the control code, through to the compile (which is successful and adds the control to the toolbox) and dragging the control from the toolbox to the GUI surface. However, when I then debug or compile the project, I get a message such
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Feb 26, 2010
I have an interface that I've defined and am working through a bunch classes that will implement it. I'm noticing that in 95% of the implementations, I'm only changing a few lines of the code, so I'd like to know if it's possible to have my IDE generate a block of code inside of a method upon implementation, much the same as implementing IDisposable.not mark my posts as answered. It is extremely rude. You have no idea if you've answered my question.I WILL come back and mark the ones that are answers, as answers.
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May 8, 2009
I am having trouble with this project I am working on. I am a beginner to vb and have some background in access databases. I will attach my am doing an inventory project. When you execute the form, a main form pops up that allows you to choose Production or Inventory. My issue is with the Production. In the production form that pops up after clicking Production, there are text boxes to be filled out by the user based on the production run.plementing a class that will give the box count based on the box type entered. I have to use a class based on the project requirements.
Basically to calculate the usage, enter in a random number for Pods Produced, then enter in a box type (which is A box, B box, C box, D box, Master Case). I want the Public Class Box Count in the code to be able to be placed in the production form's main class code and calculate the box count based on the box type entered. If A box, box count should be 50. If B Box, box count should be 100, If any other box is typed in, the box count should be 150
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Jun 8, 2010
I would like to know if there is any other way than using WriteableBitmap to convert the current screen into array of bytes.Because I am trying to get a screenshot of Esri map, but I am getting "pixel access not allowed" error
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Aug 30, 2011
I'm using silverlight3 and vb.net..I want to pass the value from Default.aspx to my App or Main page. I wrote the code in my default.aspx page which it is returning the local ip address of the client System, I would like that same address to be used in my silverlight pages.
VB code
Dim clientIPAddress = System.Net.Dns
.GetHostAddresses(strHostName).GetValue(0).ToString()
This clientIPAddress will get the local ip of the client which is like 192.168.1.12. Now i want this value to be passed to my main page. How to pass this value from default.aspx to my main page.
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Jun 2, 2010
I have 2 seperate web services. They both run on the same machine.One of the functions is the same between the 2 web services. It is a huge function and i hate having to repeat code. Is there any way to share the code between the 2 services other than having one service request the function from the other service? I'm a bit hesitant doing it that way because im worried about performance. It would mean for each request into service A i'd need to create a service B instance and call it.
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Aug 30, 2009
What is the best way to launch reporting services reports from .Net code? One method would be to dynamically build a URL and launch a browser. Something like this:
http://server/ReportServer/Pages/ReportViewer.aspx?%2fReport+Directory%2fReport%20Name&FirstParameter=1,2,3&SecondParameter=8/30/2009&rs%3aCommand=Render
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Dec 6, 2011
I have the following code in "Custom Code" in SSRS 2008. It works fine in VS2008 but it won't run on the server:
Public Shared Function Ns(ByVal num as Object, ByVal def as Object) as Object
if IsNothing(num) OrElse Not IsNumeric(num) OrElse System.Double.IsNaN(num) then
return def
[code].....
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Jul 30, 2010
I'd like to utilize Select & Insert statements on a DataTable in VB.NET or C#.
Example:
Dim Results as DataTable Results = Select * from SourceDataTable where PlayerID < 10
Is anything similar to this possible?
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Apr 12, 2010
I have an application in vb.net thats part of a big app. My team member requested I create an object with constructors to allow him to be able to access my classes and functions from his C# code and I will still be able to work on my checked out version.
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Feb 1, 2010
I would like to implement a mulithtreaded crawler using the single thread crawler code I have now. Basically I read the urls from a text file, take each one and crawl and parse it. I know how thread basics of creating a thread and assigning a process to it but not too sure how to implement in the following way: I need at least 3 threads and need to assign a url to each thread from a list of urls, and then each needs to go and fetch it and parse it before adding contents to a database.
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Jul 17, 2009
I am trying to edit, add, and update my database. I have the code for updating and it updates fine (I can see the modified time on the file), but I was wondering why none of my changes were being saved when I closed the window. Then I realized I was an idiot and I don't have any code to actually accept edits on this form, I just have code for updating and adding new rows It wouldn't update without me telling it which rows have been edited and need updating, right I mean I can't just type a new value in the textbox, click save, and expect it to save the change.This is the update and new row code I'm using:
Private Sub SaveToolStripButton2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveToolStripButton2.Click
Try
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Sep 21, 2009
I've seen this great example of serial communication in VB.NET[URL]..I try to use it in a project I am working on but somethings are not clear to me.1: Now the send and received data is shown in one RichTextBox but I would like to split this into two RichTextBoxes (RtbSend and RtbReceived).It is unclear to me how and were data is assigned to the RichTextBox?
2. the received data is shown in the Richtextbox as one long line, I would like to get a new line for every send message.So for example: I I send "test" four times, I would like to see:The example describes that "comPort_DataReceived" is executed when data is waiting in the buffer. Where can I see the eventhandler responsible for this? How does it know data is waiting?The problem is this kind of coding is a bit to difficult for me. I want to understand the code before I implement it into my project. I understand most of the code but this is unclear to me.
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Feb 6, 2009
How would you create depth code for two classes in visual basic 2008 (like if you wanted to put one picturebox behind another picturebox depending on what each picturebox's depth equals)?[code]I can't get my movement code and the image for the character object to work.
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Jul 12, 2009
Current i'm developing an application track storage of an item.in it abusiness rule says an item can be moved to more than one warehouses. Also i need to keep the history of the Item's history, Thereefore i need to create two entities,"Warehouse" and "ItemsHistoryOfLocations". I have developped an static class diagram to show the relationshop.These are the relationship rules between the classes:
1. A warehouse could be in an Item's History of locations.
2. A warehouse could be in many Items' History of locations.therefore in the forward relationshop -- 1..*
3. In an Item's History of locations, there must be at least one warehouse4. In an Item's history of locations, there can be more than one warehouse
Therefore in teh backward relationship -- 1..* Therefore the relationship betwween teh classes is a M:N. In another Object oriented scripting languaage when ever, and M:N relationship is found between classes, their relationship is slit and put a collection class called "MemberKeyDictionaries" as the bridging entity.But in C# / VB, should we create these collection classe. IF NOT, then how should i modify my class diagram to implement this M:N relationship? and h0w do i implement this M;N relationship in code?
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Mar 16, 2009
I am working with some prewritten VB code ,and this portion of code opens a new excel spreadsheet . I would like to instead , open a existing excel spreadsheet that I would like to have a template that explains my data that is loading into it. Could you please give me an idea what I would need to do with this portion of code?
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Feb 23, 2012
I'm developing a new functionality for web site project with VB.NET default language in VS 2008. As my preferred language is C# I create subfolder for C# code in the App_Code folder and add appropriate codeSubDirectories element to web.config file. The problem is that I can't refer VB.NET classes in my C# code. All VB.NET classes and structures are placed in global namespace in the App_Code. But even if I place some VB.NET class in the same namespace I've use for my classes in C#, I still can't use them.
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Sep 21, 2009
I've seen this great example of serial communication in VB.NET
[URL]
I try to use it in a project I am working on but somethings are not clear to me.
1: Now the send and received data is shown in one RichTextBox but I would like to split this into two RichTextBoxes (RtbSend and RtbReceived).It is unclear to me how and were data is assigned to the RichTextBox?
2. the received data is shown in the Richtextbox as one long line, I would like to get a new line for every send message.So for example: I I send "test" four times, I would like to see:
Test
Test
Test
Test
now I see: Test Test Test Test I've tried ctrlf but this does not work.The example describes that "comPort_DataReceived" is executed when data is waiting in the buffer. Where can I see the eventhandler responsible for this? How does it know data is waiting?The problem is this kind of coding is a bit to difficult for me. I want to understand the code before I implement it into my project.
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May 30, 2009
I have questions on this [FAQ's: OD] How do I open an existing Excel Workbook? I have playing around with the code little. Trying to mod the code to display the selected path and File name in the textbox I have on a form. I can to get it to work right
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Jul 22, 2010
I have a main application and the setup project for the app in a single solution.I have custom classes to detect in sql server 2005 express is installed. if it is not I have classes to install it and create my database.Now I need to call the above classes from my setup project before it installs my actual application on a client pc.
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Jul 9, 2010
I Have just been watching a video on throwing Exceptions. Are you supposed to throw System.Exceptions from within your custom classes. to the calling code, Which other way can they communicate. I have read in several places it is bad practice to throw SystemExeptions.
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Mar 30, 2006
I could use a reference to any code classes for enabling the selection of a folder via a dialog window.
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