C# - Additional Functionality Into Existing ASP.NET App?

Mar 16, 2012

adding certain functionality to an existing ASP.NET application running on IIS 6.0 programmed in VB.NET.To aid in future development the client wants the additional functionality to be as future proof as possible. Ideally i have said that I would like to push for a solution using ASP.NET MVC3, running off IIs 7.5 and .NET 4, written in C#. This solution would act as a seemless addition to the current web-portal appearing probably just as an extra tabbed page.

But they will be completely seperate web-apps. Which is crucial.The main problems i can forsee are firstly sharing session particulars between the asp.net web app and the new application. Particularly with regard to maintaining session state (and not having IIS timing out on one of the apps). Also, conjoining the two "apps" appears problematic in my head, although this may be far simpler than i fear.

1) Embed the new fuctionality into the existing codebase (not a great option). This would mean losing any potential future upgrade-ability and also means not following better OO conventions by utilising the MVC framework.

2) Using an iFrame to link to the razor pages of a seperate MVC3 app (the one im favouring currently). Allows uses of all new technologies, however downside is sharing session data. Either through iFrame "attributes" through persisting a session state to a db? (slow?) or even some kind of web service interaction between the applications to push/pull user/session data?

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Create A "wrapper" DLL To Provide Additional Functionality On Top Of An Existing DLL?

Jan 19, 2009

I'm trying to create a "wrapper" DLL to provide additional functionality on top of an existing DLL. Here's what I'm doing, it may be the wrong approach.The existing DLL is basically a .net version of WinSock. It has lots of public methods and events.The DLL I'm trying to create will provide specific file processing methods, and notification events, which will then utilize the WinSock DLL totransfer the files. This wrapper Dll is intended to encapsulate all of DLL #1 methods and events.

So what I'm doing is having my new DLL reference the existing one, and create a new set of events, some of which get raised by handling DLL #1 events.So I end up with two DLLs, one of which is dependent upon the other. When I try to use my DLLS in a Forms app,I am able to use my wrapper to call methods in the WinSock DLL. Some events that are raised within my wrapper are properly handled by the forms app.The events that do not work (get raised) are the ones which are raised by handling the other DLL's events.This seems to be because the WinSock DLL's events never get raised, when they apparently should be. The WinSock object in question was declared as "WithEvents".

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Developing Multi-part Projects Which Can Be Connected Together For Additional Functionality?

Sep 1, 2009

I'm in the process of developing a database project which will consist of 3 applications, which can be used on their own. The user may choose to purchase just one of the applications, but when the others are used I'd like to have additional functions enabled.My question is what is the best method of developing multi-part projects which can be connected together for additional functionality?

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Add Wcf Functionality To An Existing Website Project?

Dec 27, 2011

I have several asp.net website projects for various sites.Currently I want to add REST API's to these projects so I can start developing mobile apps (using HTML5/JavaScript/CSS3 and PhoneGap) that make use of these webservices.

Since WCF is far more powerful than regular asp.net webservices (among others with control over the service and authentication/authorization), I'd love to add these to my existing website project.

I did a Google search but cant find anywhere a step-by-step tutorial how this can be done. And also if there's any functionality I'd possibly loose when adding WCF functionality.I was also thinking of creating a new project specifically for WCF, but think I'd rather add it to an existing website project.

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C# - Rewriting Existing Functionality In The .NET Base Class Library

Apr 14, 2009

Relating to another question I asked yesterday with regards to logging I was introduced to TraceListeners which I'd never come across before and sorely wish I had. I can't count the amount of times I've written loggers needlessly to do this and nobody had ever pointed this out or asked my why I didn't use the built in tools. This leads me to wonder what other features I've overlooked and written into my applications needlessly because of features of .NET that I'm unaware of.

Does anyone else have features of .NET that would've completely changed the way they wrote applications or components of their applications had they only known that .NET already had a built in means of supporting it?

It would be handy if other developers posted scenarios where they frequently come across components or blocks of code that are completely needless in hindsight had the original developer only known of a built in .NET component - such as the TraceListeners that I previously noted.

This doesn't necessarily include newly added features of 3.5 per se, but could if pertinent to the scenario.

Edit - As per previous comments, I'm not really interested in the "Hidden Features" of the language which I agree have been documented before - I'm looking for often overlooked framework components that through my own (or the original developer's) ignorance have written/rewritten their own components/classes/methods needlessly.

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PDF - Takes A 1 Page Existing Pdf That Ispecify And Inserts That Into Another Existing Pdf?

Nov 11, 2010

I need to make a program in vb that takes a 1 page existing pdf that i specify and inserts that into another existing pdf that i specify.

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Add Additional Content To A Sandcaste?

Mar 12, 2009

I'm working myself thru the sandcastle documentation and found this C# sample.[code]...

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Add Additional Rows To Dataset?

Jan 26, 2011

I have a parent/child relation I am trying to create fow 2 datasets.The parent ds consusts of a range of PO Header information

After I fill this dataset I loop through it getting the PO number. I then take that value and execute another sql statement on the DETAIL file and fill a dataset(dtlDS) for EACH row in the parent. How do I add to this dtlDS for each row? I am getting no CHILD data in the merge. Should I be filling to a datatable and do an add.row and THEN dump into the dtlDS?

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Can't Add Additional Records To A Database

Jul 11, 2009

Im practicing a database and I have a 3-column table. Im using binary formatting to save/open the file. I cant see what is wrong with my code“

I can display records ok when I press the save button

I can also save the records ok when the save/close button is pressed.

When I reopen the programme and press the reload button to reload the dataset, additional records will not be displayed nor saved though original records will be showing.[code]...

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Get The Additional Percentage Off To Work Right?

Jun 7, 2011

Im trying to get a sales percentage program to work and im having trouble on the last part. My homework is to get the original price from the customer and then take the sales percentage off and show how much it is. Then after the first percentage is off take an additional percentage off part and then show the grand total. I got all the way up to the additional percentage off part to work right. I dont understand why I cant add an additional percentage of and the program wont recognize it and work right.

Public Class Form1
Dim Num1 As Integer
Dim Num2 As Integer
Dim Num3 As Integer

[code]....

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Stripping Away Additional Characters?

Sep 9, 2009

So, I'm currently working on sending and receiving data via a serial port. In order to use readline, I need to send vbCrLf, which is fine. I'm trying to get it to display just the characters sent and not the additional characters like Cr and Lf. Here's the most basic part of my

SerialPort1.Write(HexSendBox.Text & vbCrLf)
ReceiveBox.Items.Add("Received: " & SerialPort1.ReadLine())
The data I will receive in the ReceiveBox if I seng 'GG' is:

[code].....

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.net - Additional Partial Classes For A Form?

Sep 3, 2010

We have a big Form class that we like to split into peaces using partial class approach That could be done by manually modifying a project file, and adding MainFormPN.vb entry

<Compile Include="MainForm.vb">
<SubType>Form</SubType>
</Compile>
<Compile Include="MainForm.Designer.vb">

[code]....

The issue with this approach is when double click on this item in VS2008 IDE it shows new empty form, not MainForm UI. It looks like VS2008 does not support multiple partial classes for a Forms.

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.NET Webbrowser Control With Additional Headers?

Dec 16, 2009

I am using a webbrowser control and loading a website that uses basic authentication. I pass the username and password in the additional header of the navigate routine. The problem is that the header is not retained while navigating the site.

I.E.I log into the site and pass the user name and password in the http header. When I click a link to access another page the header is removed and the site asks for credentials. If I was to just type the site into IE and log in the first time the headers are carried forward on all pages. how I can have the page retain the headers so the user never has to authenticate?

Dim sHeaders As String
Dim HelpBrowser As New WebBrowser
sHeaders = "Authorization: Basic: " & System.Convert.ToBase64String(System.Text.Encoding.ASCII.GetBytes("UserName:Password")) & Chr(13) & Chr(10)
Me.HelpBrowser.Navigate("http://www.mysite.com", True, Nothing, sHeaders)

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Add Additional Dimension To Output Array?

Oct 6, 2010

I need to add an additional dimesion to outputArrayOfBits() in the code below which I hope conveys my intention. I need to convert a one dimensional array of 1 to n boolean (bit) values into arrays that group them by 8's so the output can be consumed by someone needing these values to be in hex format (0000 1111) = 0F How do I change the declaration of 'outputArrayOfBits and the nested control loop to achieve that?

Dim inputArrayOfBits As New BitArray(32, True) ' I can't change this.
'Create array of bytes containing what will be sent out has hex numbers 0 - F
'outputArrayOfBits(0) = (1,1,1,1,1,1,1,1) 'Hex value FF

[code]....

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Adding Additional Column In GridView?

Mar 18, 2010

I have a gridview which shows selected data from a database all the columns will popup dynamically. but now i want to add an additional column with a list box is it possible or just a column will be fine

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Adding Additional Rows Of Data?

Jul 2, 2009

I'm am very new to Vb.net, I have coded in VBA.I have created a form that will open Microsoft Excel, add header text to the columns, and insert the text from a few of the controls located on my form ("not finished adding controls") when I click the Submit button.

My problem is that when I enter different data into those controls and click the submit button again, I get a new Excel Workbook with the new data.I need the new data the be submitted to the .Activecell.Offset(1,0) of the already open workbook.Ultimate Goal of Submit button is to open new Excel workbook, Enter multiple rows of data via Visual Basic Form.

[Code]...

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Create Additional Columns In Gridviews?

Apr 22, 2009

Im trying to add data into a new column I have created in my gridview.[code]...

Now I need to go in and add data for the rows below the column. I have seen ppl saying I need to set it equal to a datafield but how do I create a datafield from scratch then?

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Display Additional Data Into Datagridview?

Oct 5, 2010

I've got 2 data tables.

tblComponents - CompID (keyed), Name, PartNo
tblProductComponents - ProductID (keyed), CompID(keyed), PercentValue

I want to show tblProductComponents and have only the PercentValue the only value that can be updated. But, I also want to show the component information as well.I can do this in a view but then I lose the update ability using the tableadapter.

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MM_MCINOTIFY/MCI_NOTIFY_SUCCESSFUL Additional Information?

Nov 18, 2011

when catching the MM_MCINOTIFY msg with wParam = MCI_NOTIFY_SUCCESSFUL, how can i get additional information about the event? i'm guessing marshal.ptrToStructure, but which structure would it be?

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Obtain Some Additional Features On A Treeview?

Mar 27, 2011

I am looking for a way to obtain some additional features on a treeview. Both, to show as to be able to input some data with a particular hierarchical structure For that on each node I need next to the nodetext a entrypossibility to input some data or to make a selection. This input possibility should be either a textbox, a combobox or a chechbox. An example of what I wisch is almost this article, except that the comment column is only a fixed text, and that I need there a input control like a textbox, or combobox.

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Pass Additional Parameters To Predicate?

Aug 20, 2010

My issue is to Find exact one Calendar object from a List Of(Calendar) by passing a particular date. I got to know about the predicate but not sure about passing parameter to it.

colorcode is List Of (Calendar) and calendar class has a property called DtmDate with which I want to compare and return the desired object. Dim a As Calendar = colourcode.Find(AddressOf New Calendar.FindByDate)

I got the predicate samples from Google and reached till now. But not sure how to pass my parameter i.e. date to it.

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VS 2008 Adding Additional Components?

Dec 13, 2009

I need to make a custom control and decided, before that, to see if there were any additional components that I could utilize.When looking through the list, I found a component called an Expander. So I decided to add it and see how it works.

After adding it, I couldn't find it at all within the toolbox. I went back to Choose Items and it was checked, but still not in the toolbox.It's probably important to note that it is a WPF component and this is not a WPF Project. Would that make a difference?Is there something else I may be doing wrong?

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VS 2008 Additional Buttons In Titlebar?

Mar 16, 2010

I was wonder if anyone knows how to add additional buttons to the title bar. Please, Don't go to too much trouble, Just if you know a link to this or know how to do it. I did find This. But, I would like to have something like shown in this Image:

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Add Additional Users To Application But With Different Access Levels

Jun 21, 2010

i'm developing an application with vb.net and mysql. I want to add additional users to the application but with different access levels. this is my original code [code]If i add a third parameter named level to the sql statement, how do i determine which form shows???

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Add Another Worksheet (additional) To An Excel File And Save It?

Jul 24, 2009

I am using visual basic express edition 2008 and office 2007. I am trying to write some data an excel file.[code]...

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Continue A Select Statement On Additional Line In Vb?

Oct 12, 2009

How do you continue a select statement on additional line in vb

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Conversion Error On Empty Additional Field

Aug 19, 2009

At run time my application gives an error of "Conversion from type "DBNull" to type "String" is not valid. In my form only one field - Add_info is an optional field which might be filled or not by the user. Before, I had an error when an apostrophe was used so i updated the code as highlighted below. This in return removed the apostrophe error but generated an error whenever there is an empty additional field.

For irow = 0 To QryColSentDataGridView.Rows.Count - 1
If QryColSentDataGridView.Rows(irow).Cells(3).Value = True Then
Try
query = "UPDATE gprdsql.TblCollections SET system_time = '" & _
Labeldate.Text & "' where prac_no ='" & _
[Code] .....

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Including Additional Resources In Installer Package?

Nov 2, 2011

I've been switching over to VB.net with visual studio 2010 and there is two big questions that are bothering me When I want to create an installer for my program, how do I do the following?

1. Pick the folder on C:\ drive where I want it installed? (ie c:\program files\myprogram)

2. I have about a dozen access databases and monarch models that I've created to work with my program. How do I include these in the installer?I'm not quite sure if this is a vb.net forum question, so pardon if it isn'i'm just starting here because this is afterall vb.net that i'm writing all of this in.

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Multithreading - Speed Up Loop Through Additional Threads?

Dec 27, 2010

I have problem with multithreading.

For:

Code:

and multithreading to loop for:

Code:

How can I speed up this loop through additional threads?

I tried:

Code:

How can I do?

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Show Additional Info On Combobox Dropdown

Jul 18, 2011

I am working on a desktop application, and in my application i am using combobox in 2 ways:

1. directly on the form, and

2. as a column in the grid.

This is how i have to used it in my application: whenever i am writing anything or selecting anything in my combobox it should display a floating panal containing a grid having some extra columns which help me in selcting any value in combobox.

[Code]...

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