GenerateTheList is function.Need help Private Sub buttGenerate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles buttGenerate.Click Dim thread1 As New Thread(New ThreadStart(GenerateTheList)) thread1.Start() End Sub
I'm using SharpZipLib to compress files. The library is wrapped in a plugin interface, in a separate DLL. I pass the plugin dll a ByRef parameter to keep track of the compression progress.SharpZipLib, while compressing, will periodically call a delegate sub passed when launching the compression. I can't figure out how to update the ByRef parameter when the delegate is called. If I try to assign the ByRef variable in the body of a lamba expression, I get a 'ByRef' parameter '<parametername>' cannot be used in a lambda expression error.
IM doing an assignment for college. ITs saving records to a file, and getting them back basically. So really not that hard.
The error is occuring around the following line of
[Code]...
basically all I've been doing so far, is formatting the output fields to show dates correctly. And I believe I'm getting this error. There is data in the form becasue i wrote it there to test it.I think im saving this right, but it seems ODD that its not working for me.
I work with C# 99% of the time. However, I'm having to update some legacy VB.Net code and encountering an issue with VB.Net code syntax. The error that I get is "ByRef" is underlined and "Expected Expression" tag shows up when you hover over "ByRef". The "FooDetail.Load" function is written in C# and expects a List object passed as reference. Don't have any trouble using the same function in other C# classes. Can someone indicate what is wrong with below VB.Net code.
Dim FooDetail As New clsFooDetail() FooDetail.FooID = FooID Dim lstFooDetail As New List(Of clsFooDetail) FooDetail.Load(ConnectionString, "Stored Procedure", ByRef lstFooDetail as System.Collection.List(Of(clsFooDetail))
I just upgraded from Visual Studio 2005 to Visual Studio 2010 yesterday. I tried opening my site; it started the conversion wizard and seemed to work OK. However, I get the error "Visual Basic 9.0 does not support this kind of lambda expression." Here is my code:[code]....
The error is on the "Function()" line. I thought multi-line lambda functions were one of the new VS2010 features. Why am I getting a VB9.0 error in VS2010?
If I put New Action(AddressOf PrivateMesage), then I get the following error: Bounds can be specified only for the top-level array when initializing an array of arrays. on the following code
I am getting two errors for "expression is not an array or method, and cannot have an argument list," When debugging, the formula works quite well. However I will lose points for blue squiggly lines. I am not allowed to use any built in functions like math.
Public Class ABC Public Sub Foo() AA.Bar(nothing, Sub() End Sub) End Sub End Class
I feel confused at the second argument of function AA.Bar, this argument is specified as a Sub/End Sub procedure.What is the function AA.Bar's possible definition looks like?An event? Delegate? Pointer like?...Where can I find the latest VB.NET Grammar Specification?What are the new features in VB.NET 4?
I was trying to use a GetAsyncKeyState code but each time I run the program an error occers where
[Code]....
'A call to PInvoke function 'WindowsApplication1!WindowsApplication1.Form1::GetAsyncKeyState' has unbalanced the stack. This is likely because the managed PInvoke signature does not match the unmanaged target signature. Check that the calling convention and parameters of the PInvoke signature match the target unmanaged signature.' The full code is in timer with (1) time interval
If a function returns a private shared (static) string, or a string declared as a module level variable, is the returned a reference to the shared string's instance or a different string instance having the same value?
I am dumb founded at this statement....maybe its just too many hours/days of doing C# to VB.Net conversion but i am drawing a blank on this conversion.
In looking at Fuzzy Date Time Picker Control in C# .NET? Piotr Czaapla's answer to that question is exactly what I need. unfortunately, I'm a VB.NET guy and I'm not that familiar with lambda expresions, so my attempts to convert the code have resulted in hours of misplaced parenthesis and banging my head with a brick.
Any chance some bi-lingual wizard could convert the C# code to VB.net for me?
I will probably sound like a bad developer here, but I am attempting to convert some code from the following page from C# to VB.NET:The code I am having trouble converting is from Step 4 of "Joining a Multicast Group" on the page, and here is the code with the comment lines removed:
private void Join() { _receiveBuffer = new byte[MAX_MESSAGE_SIZE];
Public Function GetFunc(Of TSource, TResult) _ selector As Expression(Of Func(Of TSource, TResult)) _ As Func(Of TSource, TResult)
[code]....
UPDATE:I have the following issue, it's a part of a function:
Dim obj As Object = value For Each exp In expressions If obj Is Nothing Then Return [default]
[code]....
Exception Details:
ArgumentException:Object of type 'System.Linq.Expressions.Expression`1 [System.Func`3[System.Char,System.Char,System.Char]]'cannot be converted to type 'System.Func`3[System.Char,System.Char,System.Char]'.
If been try to convert some code I have from VB.net to C# but I just cannot get it working!first is the vb code I'm only interested in the line that has the Lambda Expression for the C#[code]......
I know in VB Lambda expressions must return a value and can only have one statement. But in my case I just need to execute a Sub that does not return a value. Is there a way to trick it by somehow returning a dummy value yet still call my Sub? If possible what would the syntax be like?
I am having an issue using the vb equivilant of the MAX lambda expression. at foos.Max(function(x) x.id) when I try to intellisense the property ID VS will not show it. But when i run the example it works. Is there something I am doing which is wrong, an i am just lucky it runs? [Code]
Private Sub InsertItemInCache(Of T)(ByVal item As CachedItem(Of T), ByVal dependency As AggregateCacheDependency, _ ByVal key As String, ByVal updateCallBack As CacheItemUpdateCallback)
I am Creating a Lambda Expression, but it' not getting me the write Out put :
Public Class Form1 Delegate Function GetLastChar(ByVal S As String) As String Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code]....
I want Send a Name like "Arindam" and its return me "m", the last character.but in messagbox return value shows "fasle" I can't under stand why it's showing "False" instead of "m", the last character.
I am having a generic ListOf-collection holding the self-created User-object, I can filter for users by using lambda-expression like this: Dim reviewers As List(Of User) = users.Where(Function(u) u.DvRoleID = 2).ToList
Instead of using the lambda expression I can also write the function and call it as argument like this: Public Function GetReviewer1(ByVal u As User) As Boolean If u.DvRoleID = 2 Then Return True [Code] .....
Now the question: why can't I create a delegate having the same signature as the GetReviewer1 function and use the delegate as argument inside the where-clause like this: Delegate Function Criteria(ByVal u As User) As Boolean Public Function GetReviewer1(ByVal u As User) As Boolean If u.DvRoleID = 2 Then [Code] ..... The compiler does not accept the crit delegate as argument.
I am trying to see if the controller class name is the name of the controller name passed in. I think my lambda expression is wrong and that is why it isn't working properly. I am passing in the correct controller names, but the export variable is always null.
Public Function CreateController(requestContext As System.Web.Routing.RequestContext, controllerName As String)
