In VB.NET projects, errors are highlighted immediately after cursor leaves the line. In C#, I have to wait several seconds for IntelliSense to highlight it. Also, the C# version doesn't show all project errors in "Errors List", unless you start to build it. Actually, it seems to work differently in every way. Is it possible to adjust that behavior?
I am using both Visual Studio 2008 and Visual Studio 2010.
However, for several years now, I have been working primarily in the .Net space. Initially, my transition into the .Net world consisted of writing and maintaining VB.Net code. VS provided almost all of the nice intellisense support I came to expect after years of working with the Eclipse/Java combo. Eventually my employer decided to do new development in C#. My initial impression of the intellisense support for C# was less than stellar. At times it seems as if VS has no background compiler for C#, but occasionally it does something smart, indicating there is some background processing there, but not quite enough to really boost productivity in meaningful ways. Is there any sane technical reason for this discrepancy regarding intellisense support between the two languages?
View 4 RepliesI am in need to delay the execution of a line of code, say, by 5 seconds. But by doing System.Threading.Thread.Sleep(5000)
the whole UI hangs and I don't want that to happen. Because I want to be able to display something in a Window that a user will be able to see. Does anyone know of an alternative of achieving this?
I have a datagridview on my form. The datagridview has a bindingsource on a table in a dataset. I filter the datagridview on a boolean field:
tblTransactionsBindingSource.Filter = "Complete = False"
If you click on Complete on the datagridview on one of the rows being displayed the row disappears. Well, almost. It disappears after you click on another row. What property do I need to set to cause it to disappear immediately? I tried EditOnEnter and that didn't work.
I have a picture on a form, and when the user clicks the picture, its image source changes into an animation and loads a new form.The problem is, the new form loads and only the first few frames of the animation is shown.
View 4 RepliesI'm having a hard time figuring out why this is happening. When I check an item in the listbox it calls the sub ItemCheck for the listbox accordingly:
Code:
Private Sub chklbToDo_ItemCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles chklbToDo.ItemCheck
Dim iLoop As Integer
Dim iCheck As Boolean
[code]....
I've had to work with the delay of the check by reversing the boolean value caused by the check. But when I worked it into the program to delete the item that is checked, it deletes the selected/(un)checked item and THEN checks the item with the index. So in other words, if a user selects and checks an item in the listbox, and chooses to delete the item, it deletes the item and then checks the item that replaces it in the index (the following item).I don't understand why the checked value doesn't appear until after the sub ends.
I want to make a project that when form loads the form follow the mouse [delayed and smoothly]
View 16 RepliesIn the following XAML the editPanel is always visible. The overlayGrid is only visibile when a long operation has been kicked off by pressing the F5 key. The visual effect being that the editPanel is grayed out will the long process takes place.
<Window.InputBindings>
<KeyBinding Key="F5" Command="{Binding Path=RefreshCommand}"/>
</Window.InputBindings>
[code].....
Yesterday I was at an interview where my interviewer (who admittedly didn't claim to be an expert on the subject) stated that "VB.NET is more weakly typed then C#" - (At the same time he couldn't recall an example). This statement seemed incorrect to me (particularly given that both languages use the same framework libraries for their types) and I advised as such and that perhaps he was confused with the option to turn Option Strict or Option Infer on/off.
At the same time I know that VB.NET has situations where it will do type coercion - leading to occasionally unexpected results (although I also cant recall under what conditions) - (Actually I think I just remembered that it was mainly when performing arithmetic operations with different types - whereas other languages will force you to be explicit (?) ).
I have an interesting issue I've run into where I can easily tap into python code from VB in an excel instance, as described here: Calling python script from excel/vba.However, when I mimic the exact same code structure in visual studio in a form, the pyscript.language = "python" line fails. Does anyone know if MSScriptControl.ScriptControl can be used in VB .Net to control python like you can in excel? This would be a lot easier than setting up a com object for my python scripts.
Example code (need to add microsoft script control 1.0 and excel object library):
[code]...
I have 2 arrays one is a and second is b. how do i compare each of them and insert to new array c?[code]...
View 10 RepliesI've been developing databases for research using ms access for the last few years. The application is used on accross a hospital network and while it was slow initially, itstarting to come to a grinding halt as numerous users are accessing it at once. I've been debating whether to try and develop the front end using vb.net in hopes of making the application faster.Does anyone know if this would be the case?
View 1 RepliesI have been doing this project for couple of weeks and i get stuck and cant find a way to do it. I need to compare this 2 txt files. So if the data in FILE A matched data in FILE B, the quantity in FILE B need to deduct the one customer bought and replace the new quantity. For example:
[Code]...
I need to write software that will do a lot of math. Mostly it will be matrix multiplication with integers to compute DCT. How much faster should I expect the code to run in native c as compared to VB .Net? Factor of 2, factor of 10, factor of 1000...?
View 3 RepliesI am working on a large project with hundreds of dll's being used on the same machine, on the real large windows there is latency issues that I would love to address. The VB6 project was quick and effective but dotnet is bulky and slow compared to vb6 version, what changes from vb6 to dotnet would increase performance and reduce latency in the larger windows?
Working with VB08 3.5 Framework so parallel isn't going to work sadly, what other methods are there from a code standpoint could I use? DUring the conversion process could it be using parts of code that bog the system down?
Is it possible to create a class in VB.NET that can be compared to a string in a switch statement? For example, let's say I have a class Foo:
Public Class Foo
Public Bar As String = "test"
End Class
Is it possible to implement some interface or override some equality operator so that I could use Foo like so?
Dim foo As New Foo()
Select Case "test"
Case foo
' It worked!
End Select
Im having odd problems with how my form is displaying at runtime...if you look at the 2 attachments you can see at runtime the labels disappear under the check box's, but at design time they are positioned perfectly.
View 5 RepliesI am using VB.NET and I can't compare the radio button lists selectedItem.Value to a string, it doesn't work...here is the code: (I have also tried selectedValue it does not work either)
[Code]...
Why won't it evaluate that rblOne.SelectedItem.Value = "No" !?!?!? I tried rblOne.SelectedValue, that doesn't work, AND I added .ToString to both, which did not help, I even tried it w/ "No".ToString...this doesn't make any sense.
I have a program that someone else designed the form on and sent to me to populate the code. I am not sure what could have been done to cause this problem, hoping for a quick oversight on my part. There are several fields of textboxes that the user enters numbers in. Normal behavior for textboxes is when you tab to them the current contents are highlighted. On one of these textbox fields, and only that one set of textboxes, the contents are highlighted like normal at first, but after the user edits the content of the textbox, if you tab to it again it will go directly into edit mode instead of highlighting the contents. Each textbox in the field does this individually, so if you just edit one, all the rest will continue to highlight contents until you edit them as well. It appears you don't actually have to change the value of the textbox, just entering edit mode and getting a blinking cursor is enough. I cannot find a difference in the properties of these textboxes compared to the rest.
View 4 RepliesWhen I run my app at first its keeps time accurately for the first minute or so there after it starts loosing seconds, and by the end of the day its minutes behind.I've created a class called ServerTimeTimer that has a timers.timer object that elapses every second and adds a second to a dateTime variable, and a property to retrieve the date time.[code]
View 5 RepliesI find myself frequently turning off Intellisense because it adds wrong choices to my code. For example if I try to type "i " (without the quotes) it causes "int " to be put into my code. If I type "for " it may put "form " into my text.
Reaching for the ESC key constantly slows down my typing. (It's such a long way to reach for small hands). Is there an alternative way to exit out of intellisense without the highlighted choice being placed into my code, or is a way I can define a different key for this purpose?
is there a way to enable IntelliSense for XML literals in VB9 (VS 2008)?The ideal source of IntelliSense is an XSD document, but I can use anything else format to do it.
View 2 RepliesI do not get intellisense working when creating a Property. How do I get intellisense to work here? Intellisense seems to work otherwise, just not with the Get / Set instantiations.
View 9 RepliesI am primarily a C# developer; however, I am currently working on a project for a client who preferred VB.net. I have managed to switch over fairly well, with one frustrating exception. When editing a C# file in Visual Studio pressing enter will select an item out of the IntelliSense window and keep the cursor at the end of the selected statement.
However, when editing a VB file, pressing enter selects the item out the IntelliSense popup AND moves the cursor to the next line. I realize that this is a small thing, but it drives me crazy, because it makes it really hard to switch between C# and VB projects.
I have searched for everything I can think of in Google and found nothing. Does anyone know of a way to change the IntelliSense selection behavior?
Using lambda's in VB.Net results in no intellisense. Is this a bug with VS2010 or expected? Note that it works fine in C#
Return Array.TrueForAll(chequeColl, Function(x) x.Number <> "N") 'No intellisense Number does not appear
Return Array.TrueForAll(chequeColl, Function(x As MyClass) x.Number <> "N") 'Now casted intellisense appears
UPDATE: Here's an example
Public Class Cheque
Public Property Id As String
Public Property Status As Byte
[code]....
I'm using coderush with vs 2008. coding in VB.net. I don't see any evidence of Intellassist, all i see is the usual VS intellisense. Is this normal? Preferred? Do most people leave the defaults or do most/some turn off vs's intellisense? Does intellassist somehow argument intellisence?
View 1 Repliesi know someone will say this belongs in database programming but i don't think this problem is to do with databases and is more to do with visual studio.
when i start to type oledb.oledb..... intellisense would usually give me an option for oledbcommandbuilder. in the current program i am doing for coursework this option is not given. i can choose oledb.oledbcommand but i do not know how to use it (too advanced for A-levels, yes i'm british) if i actually type oledb.oledbcommandbuilder visual studio does'nt show an error in my error list. so what is going on? how can i get visual studio to recognise oledb.oledbcommandbuilder?
Is it possible to enable XML intellisense in a C# class as it is in the VB editor? Similar to this article's prescriptions:
[URL]
Would like to not have to use xsd.exe to generate a class from the XML.
I want to use Enter instead of Tab to choose from the intellisense list(This is in VB)From what I can se from this rather old post [url] it was not possible. Has anything changed from there? I use Visual Studio 2010 Ultimate.
View 4 RepliesI'm doing database development in Access 2003, and the Visual Basic portion of it is acting up. It seems to be "refreshing" itself constantly. Two very frustrating problems are occurring because of this: 1) Intellisense for properties and such pops up but immediately disappears and turns red and 2) it's automatically checking the syntax of lines before I can finish typing them.
The problem seems to be intermittant. Some forms in the database operate fine while others immediately turn the line red two seconds after I start typing. I am having this problem on both of the computers that I use on a regular basis.