.net - ByRef Underlined With "Expression Expected" Error When Trying To Pass In A Object Of Type List(Of ClsFooDetail)?
Mar 3, 2010
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))
Dim x = GetType(List(Of )) 'valid statement Dim list As New List(Of String)
Now I want to see if list is a List(Of T) variable: Dim isList = TypeOf list Is List(Of ) On the last line I get a compile error: "Type Expected". Is there any cheap-performance TypeOf operator alternative for generics?
Below is the called method: Friend Sub SplitOU2(ByVal inDN As String, ByRef OUDN As Object, ByRef Organisation As Object, ByRef VerksamhetTyp As Object) By doing this I can skip to declare the in this example "useless" variable Dim VerksamhetTyp as Object = "".
I am developing a VB.NET ASPX file and am trying to run a string query in VB.NET, but now I get the above error message. How can I determine the cause? Some of the code in this
Why if you pass an object as byVal into a method is it then treated as if it were byRef? I know you're only passing the reference across when you pass an object variable but why doesn't VB force you to decalre the header as byRef?
I want to pass an optional parameter to a function of type System.Drawing.Color. The problem I am having is that when I declare the function it says "Constant expression is required" but I have tried variations of the following, including integers, full qualified indentifiers, even old vbWhite constants to no avail.
I got an error "Expression expected". The error occurred in ThreadID1 = GetWindowThreadProcessId(GetForegroundWindow, ByVal 0&) ThreadID2 = GetWindowThreadProcessId(hWnd, ByVal 0&) I am using vb.net 2008 express.
I need my VB.net to write a file containing the following line
objWriter.WriteLine ("TEXTA " (FILEA) " TEXTB") Unfortunatly the variable (FILEA) is causing problems i now get the error Comma, ')', or valid expression continuation expected.
This code is giving an error: Compiler Error Message: BC30201: Expression expected. I just basically want to check if two values are equal but its saying something about expression expected although i've given the expression to evaluate.
I have user control which has one button. To handle click event of button I have added following code in usercontrol.
Public Sub ChangeClickHandler(ByVal [Delegate] As EventHandler)
[code]....
Now, I want to handle this click event where I call the this usercontrol. I call the usercontrol through reflection so I get the control in a form of object.
Dim button as object button.ChangeClickHandler(AddressOf mymethod), this line gives me error "'AddressOf' expression cannot be converted to 'Object' because 'Object' is not a delegate type."
I have the following Data Transfer Objects defined:
Public Class MemberWithAddressesDTO Public Property Member_PK As Integer Public Property Firstname As String Public Property DefaultAddress As AddressDTO Public Property Addresses As IQueryable(Of AddressDTO) End Class
Everywhere text is in Black i get the error "Type Expected"
Private Sub Done(ByVal sender As Object, ByVal e As Windows.Forms.WebBrowserDocumentCompletedEventArgs) TabControl1.SelectedTab.Text = CType(TabControl1.SelectedTab.Controls.Item(0),
I keep getting the 'Object Expected' error within my page script when I click the button.I've debugged using fire-bug and the id passed to the JavaScript method is the correct id and document.getElementById(a) finds the button. The error keeps occurring in the _doPostBack. Can this be caused because the button is inside a modal popup in a gridview cell, and the gridview is inside a update panel. The reason I'm still using the JavaScript is the Post-Back event in the GridView.RowCommand did not occur without this.
The code:
function addAcc(a) { var btn = document.getElementById(a); //get the button, not necessary but safer alert(a); //To see the button id
I am trying to use jquery or jscript to click a hidden button and I always get"Microsoft JScript runtime error: Object expected" error.I have tried all of the following (all with the same results):
I have a View in which I have a code block where I am setting some variables and later on using those variables to show or hide some areas.When I build this website. A compilation error comes up on the line @( stating Syntax Error and another one stating Expression Expected. Can anyone guide me what I am doing wrong here...
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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?
basically i have 16 checkboxes that indicate the status of digital inputs, either checked or unchecked, but rather than adress each and every one of them with a pile of repetative code, i set up a for-next loop and tried to change the status of the checkboxes with - is for index = 0 to 15, if blah=true then checkbox(index) = checked else checkbox(index) = uncheckedBut i get error- checkbox is a type and cannot be used as an expression.
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.
