This code is for 2008, 2010 and later versions of VB.Net as it uses an extension method.Please note: If you are using an earlier version ( or you do not like extension methods ) please see the next post.Here is the code I posted on Monday April 30th, 2012.>>Now you can specify the startRadius to be
View 7 RepliesI am writing a Direct Sound application and I am getting a warning that the functionality that I am using is obsolete and to use different functionality. However, when I try it, I get a compile error.
I am using VB on Visual Studio 2008 and .Net 3.5 .
[Code]...
I can do this using VBA, but I want to be able to create the code using a compiled VB programme, which can then be opened in Excel.
View 1 RepliesWhy would I use an extension method instead of just creating non-extension sub or function?
For ex, I could have an extension function called IsNullOrEmptyOrAllSpaces on String, which does a check as its name implies. Or I can write a stand alone function that does the same thing. Other than having the extension show up in Intellisense, is there any advantage? Is a call to the extension quicker/more efficient than a call to a regular function?
Currently, Smart Indent in VS 2010 is giving me lots of headaches. Everytime I try to put each parameter of a Sub or a Function into one line like
Private Function Foo (ByVal a As String, _
ByVal i As Integer)
[code].....
I am using following code to get a directory of files with a particular extension. It throws an error that you donot have administrator privileges.
CODE:
I saw this post and I want to know if this is possible in VB. So like extension method, do extension properties exists in VB.Net? Here I've read they do, but cannot find any examples.
View 3 RepliesWrite an overload for every numeric type or if possible constrain a generic extension method to just numeric types.
View 2 RepliesI need to write a simple program that imports tab delimited x,y coordinates into a simple form, by clicking an "Import" button and navigating to the particular .txt file. On the button press I want to read the text file and display these in the shape of anything from a simple square to a slightly more complex closed polygon (maybe using a path function) in the main picture box to view the shape.
Then I would like to press an "Export" button and save the displayed shape coordinates/vertices back to a file location of my choice as a .txt file.
I have some code to execute code at runtime...
Here is the main
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
If TextBox1.Text.Trim <> "" Then
If TextBox2.Text.Trim <> "" Then
[code]....
When the button is pressed, it all works and the following files are created: yahoo.dll and yahoo.pdb My question is this: What is the code to load the already compiled yahoo files to execute the code again, without having to recompile the code?
Extension methods are useful for types that you don't own and can't/don't want to derive from and extend (e.g. reference types and interfaces). Obviously, interfaces should be kept as short and to-the-point as possible, so extension methods for interfaces are particularly useful (e.g. LINQ).For classes, especially classes that you own, they're still useful - but I'm wondering how you determine what should be an extension method or what should be a method in the class itself.Personally, every time I think about it, I keep going round in circles with the following thoughts:If it's useful enough, it should be in the class.It's not part of the core responsibility of the class, it should be an extension method - but if it's useful enough, surely it should be the responsibility of the class...
View 3 RepliesI was unable to see the code generated by vb for form initialization automatic code generated by vb how can i see it?
View 1 RepliesI've been trying to get some help for this in another thread,but it looks like it's a task that is going to need a wider audience to try and find someone who knows something about writing/creating procedural textures at the pixel level in VB.Net. The VB6 example I'm trying to convert to VB.Net is attached to this post.
[Code]...
Is there an easy way to display the rgb code of system colors in VB2008?
That is, I am looking for some code that will retrieve the names of the colors that are used in the system colors and display their rgb codes (and maybe show a sample), so I could display, for example, what the rgb code for "control" is.
I want to know if there is any method to get code from the exe file in vb.net. Please inform if there is any method or trick to do so.
View 1 RepliesI have a project that has some VB code in it that I'm not allowed to convert to C#. I work in C# and not very good at VB, but I am needing to modify that VB code to use some C# methods I created.
For example:
C#:
Code:
using MGCIS2.Reporting;
using CrystalDecisions.Shared;
[code]....
At this line in the VB code (Dim crv As New Tax.Reports.CrystalReportViewer(_rdbc)) it is giving me an error:Too many arguments to 'Public Sub New()'
I've bee working on a project for quite some time now, and I get tired of scrolling all the way to where I am going to implement new code. I use #Region a lot, but this does not help me within methods, so what I'm wondering is, is there any way to collapse text within methods, or do I have to keep scrolling?
View 8 Repliesbelow is my code for copying an image from a form to send it to the printer.it works but it tends to be a little blurry. is there anyway to make it sharper?
Bmp = New Bitmap(Me.ClientSize.Width, Me.ClientSize.Height)
Bmp = New Bitmap(800, 500)
Dim G As Graphics = Graphics.FromImage(Bmp)
G.CopyFromScreen(Me.PointToScreen(Me.ClientRectangle.Location), New Point(0, 0), Me.ClientSize)
I'm trying to figure out some simple code to detect when a pixel changes color anywhere on the screen. Maybe with just a msgbox popup when it changes.
View 2 RepliesDoes anyone know how to turn off the blank space delimiter of a dot? I have no idea how I turned it on, but now there's a dot where every whitespace charater would be in the IDE's code window.
View 2 RepliesI tried to make a menu for my game, but when I placed the code into the form loading event, it wouldn't show. Then I placed a button and moved the code into the button click event and it worked. Thus, I know the code shouldn't be wrong. How can you make the graphics( as in lines, rectangle,etc) show up when it starts up?
View 5 RepliesPrivate m_HolderName As String
Private m_Balance As Decimal
Private m_Dat As Date = Now
this approch is correct or not.
I have a couple of shared methods in my app which are intended to be used with ObjectDataSource's (and other reflection based objects). They handle a lot of automatic parameter checking, filtering, etc. They are, however, all one time use methods (they rebuild everything on every call). It would be much better for someone writing code directly to call the instance methods so that all the filtering, etc, is stored between calls.Is there an attribute I can add to my methods to indicate this? The best would be if it would prevent the method from being called without reflection. Second best would be to issue a warning that the method is being used wrong.[code]
View 1 RepliesI need to disable a button after its pressed so the user does not have the ability to click it again as this would replicate the process in some cases. After alot of searching I found some tips - alot of code I found I could not understand.This is what I have come up with:
[code]...
I also read somewhere that I should use: System.Threading.Thread.Sleep(1000) to delay the process or something - not entirely sure why I would do this though.Although, the problem with my above code is that when the code behind page performs validation checks, it exits sub before executing my INSERT SQL code - so when it does this it also disables the button.I am not entirely sure if the above method is fool proof or whether it is a **** piece of code that won't work 100% of the time.On another website I found a script to put on the actual HTML page with <script> tags:
[code]...
But although this works, it does not execute my VB code in the code behind page so I am a little confused where to go here.
This is a general question about Object Orientation and specifically overloading functions in .NET (or any other framework or language). I am looking at an application that has a lot of duplicate code. For example, have a look at the following functions: [code] I would of thought that best pratice would be to put: //code that is specifically relevant to Test1 variable in a separate function as it is common in both functions.
View 2 RepliesI am having some problems trying to find a code for addAttchement method to my Listbox, I using Access 2007 and window application and VB.
View 7 RepliesIs there a way to pass code blocks to a method or class?
I'm trying to write a number of exception handling methods.[cod]e...
I have vb.net method and i call it from JS code i can't send parameter to this method and here is sample:[code]
View 5 RepliesI'm totally baffled why my next line of code is not being read after I use the .SubString method.
First, I read a webpage using WebBrowser.DocumentText
Dim TextString As String = WebBrowser2.DocumentText 'Converts page to html text
Second, I search for the string "Price"
[Code]...
want this button to submit or save the changes into my database.
Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSubmit.Click
dbConn = New SqlConnection(connString)
Dim qryUp = "Update CMScontent.Content[Content] = @Content Where ContentID = @ContentID"
dbConn = New SqlConnection(connString)
[code]....