One of the convenient and simple events I liked for textboxes in VB6 and VBA was the afterupdate event where after you finished typing in your data or text, you pressed enter and the program processed the text in the textbox. In VBNet, life is not so simple. I have included a simple code to do the same thing using the keydown event and checking to see if it is the enter key. This code just send a message box with all the text in it. You can manage things from there
While building out an interface for patient/client lookup, we have a pull from out FoxPro EMR creating the patient table and populating the lookup on the EU interface.
Recently, I Developed an Experiment Application with VB.net(in Windows platform), When the application collected the data,I want to use R to Analysis the data, But I don't know how to Communicate with R (In other word, I want to send R script to R in my own application).
This is probably simple, but the answer has eluded me. How can I move a folder from one drive to another drive. System.IO's MoveTo won't let me move a folder to another volume. Any thoughts?[URL]..
i need a code that sends message to a window if it minizied and that is a api is it possible? i did hear aboutt the post/send message but i dont have any code for it, and would it work for an api?
I have a VBnet program that works fine and I'm hellbent on getting it to run under Linux eventually (looks like mono is the way to go sometime soon). But, for now, I'm looking at some of these code converters, online and otherwise and have some questions.
I tried a single procedure of code with the online converter and it threw quite a few errors relating to the procedure lines themselves (the opening Private sub etc, etc,)Something about C# and handles clauses -- can't remember.
So, I suppose the online converter just wants to see the code itself? As in, what lies between the Private sub blah -- CODE -- end sub?Now, what about something I saw this morning, "Sharpdevelop" that says it can convert entire PROJECTS to C#? (Also saw a 200.00 software package as well).
Is that the way to go? Will it do every bit of the project's code start to finish? You just load the project folder or the project file I guess?But then I see Sharpdevelop doesn't compile -- so you convert with it and then open the converted file with Visual studio C#.net?
I guess Microsoft will never have this conversion capability in visual studio?
In C# I can create an interface, and when I use the interface the compiler knows that certain interface requirements are fulfilled by the base class. This is probably clearer with an example:
[Code]...
On all my forms, or is a better route creating an abstract base class that has SetupForm() (and how do you do that in VB.net)?
Possible Duplicate: How can I create an interface in VBNet with implicit implimentations I'm normally a C# developer and completely new to VB.NET, so be nice with me.;) Let's say that I have this base class:
[Code]....
Is there any way of not having to use these "proxy"-calls to the real method? I haven't found any useful information about this in the CLI-specification, which makes me suspect that this is a VB.NET "feature". Is this the case?
This is what happened: on the form load of my application i created a background worker to bind collection (records from database filled in the dataset) on my control. but the problem is when the i updated the records on the database it throws an error if i run this procedure again.
If xControl.InvokeRequired Then Dim MyDelegate As New InitializeDataBinding_Delegate(AddressOf InitializeDataBinding) Invoke(MyDelegate, New Object() {xControl, xQuery, xPrimaryKey}) ' ERROR HERE SAYING: Collection was modified; enumeration operation may not execute.
I would like to do a replace all using VBnet 2003 and MSword 2007.
I got to this
Dim Selection As Word.Selection Selection.Find.ClearFormatting() Selection.Find.Replacement.ClearFormatting()
[Code].....
It crashes EVERY line with the selection claiming that "Object reference not set to an instance of an object." I got the code by doing a macro recording and it worked fine as a macro but I do not want macros in my document.
I know that AndAlso is equivalent to && and OrElse is equivalent to ||. But what is the cleanest way to achieve the equivalent of Visual Basic's And and Or in C#?For example, consider the following VB.NET code.The ValidateForControl method performs some validation and returns whether the state of the specified control is valid. The entire input form is valid if all controls are valid. However, each control must be individually validated even if one is invalid (which requires the operator not to short-circuit). Visual Basic's And operator is perfect for this situation, but unfortunately there's no equivalent operator in C# as far as I know (&& short-circuits).
What I am trying to do is to check if a value matches one of two numbers (and easily be able to add to the numbers to compare to). Rather than doing a longer-winded way such as: [Code] I have found that this only works when SectionID is 2 or PageID is 8. If SectionID is 3 or PageID is 12 then it doesn't work. Why is this and what can I do to try to get around the problem?
I'm normally at home in C#, and I'm looking at a performance issue in some VB.Net code -- I want to be able to compare something to the default value for a type (kind like C#'s default keyword).
I am relatively new to Visual Basic. When it comes to logging, in Java I use log4j for logging.What is the equivalent in Visual Basic and can you please guide me to a good tutorial?
I've got a large codebase which I'd like to expose to plugin authors to allow them to use VB.Net Express to code plugins for a server app, which is not available to them. My problem is that even with obfuscation, I'd rather not distribute the complete app and/or dlls, as even with obfuscation peeling apart a .NET assembly and puzzling out code is relatively easy to do. I'm interested in this because the licensor I obtain the code from requires me to protect IP and assets and while distributing .NET apps opens up the app to disassembly, keeping the server app private and allowing users to utilize a skeleton dll to code against is a happy medium.
What I'm looking for is some way or a utility to go through my server app source code and create a codeless version of the app which only contains method and property signatures.The intent is to provide a stub .NET dll for them to add as a reference and code against as if they were directly interacting with the server, without actually providing the server code to them, compiled or not. I can of course do this by hand but there are over 90 classes and hundreds of thousands of lines of code I'd rather not spend a week hand tweaking. Also, this presents a problem whenever new methods or code are added to the project. Finally, two separate projects is an even worse scenario.Because people will post suggestions that have little or nothing to do with the question, here's a short, clear example. I want to turn this class:
Public Class MyServer Public ReadOnly Property Name() As String Get Return "Whatever"
What is the vb.net expression of this c# expression ?
Frame.GetController<ShowNavigationItemController>().CustomShowNavigationItem += new EventHandler<CustomShowNavigationItemEventArgs>(WindowController1_CustomShowNavigationItem);
I'm looking at some old ASP code that contains the following:
Set objDSE = GetObject("LDAP://RootDSE") Set objSysInfo = CreateObject("adsysteminfo") Set objUser= Getobject("LDAP://" & Replace(objSysInfo.UserName,"/","/")) dtmValue = objUser.PasswordLastChanged
[code]....
This is for an intranet app that uses integrated authentication. Is there a replacement for the ASP adsysteinfo object? I can probably port most of the LDAP calls using System.DirectoryServices.DirectoryEntry, but is there a better/easier way to do this in ASP.NET (VB.Net or C#)? how to convert the ASP object properties to DirectoryEntry properties?
I have made an application in vb6 abd now trying to do the same in visual studio 2005. In vb6 i was using MSFlexgrid and its .Textmatrix properties. Would like to know what is the .Texmatrix equivalent for .net. When i pasted the code form vb6 i get the following error...
'TextMatrix' is not a member of 'AxMSFlexGridLib.AxMSFlexGrid'
Possible Duplicate: How do I specify the equivalent of volatile in VB.net? What is the VB.NET keyword equivalent of C# "volatile"? If there is no keyword what mechanism is the equivalent?
Does C# have an equivalent to VB.Net's DirectCast?I am aware that it has () casts and the 'as' keyword, but those line up to CType and TryCast.To be clear, these keywords do the following;CType/() casts: If it is already the correct type, cast it, otherwise look for a type converter and invoke it. If no type converter is found, throw an InvalidCastException.
TryCast/"as" keyword: If it is the correct type, cast it, otherwise return null.DirectCast: If it is the correct type, cast it, otherwise throw an InvalidCastException.
EDIT: After I have spelled out the above, some people have still responded that () is equivalent, so I will expand further upon why this is not true.
DirectCast only allows for either Narrowing or Widening conversions on inheritance tree, it does not support conversions across different branches like () does.ie: C#, this compiles and runs:
//This code uses a type converter to go across an inheritance tree double d = 10; int i = (int)d;
