Error - Expression Is Not A Method
Aug 7, 2009
im migrating from vb6 to vb.net and have only very basic knowledge of .net. now i upgraded one of my projects, in which i had function cleartexts() which would clear all the text boxes of the forms. now to upgrade it to .net i converted it to sub (as it didnt return anything), so it looked like,
public sub cleartexts()
for i = 1 to 24
text(i).text=""
next
end sub
but .net 2005 gives the error, "expression is not a method", how do i call it then?? or what modifications do i need to make?
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Mar 4, 2010
Ok so I have alot of plans for programs coming up and I want them all to fade in and out so instead of copy and pasting from project to project etc I learnt about dll's
So when I added in the references etc and I typed in what I declared the Fadein function as which was "FadeIn" I got an error saying it needed to be declared
So I declared it as a string
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim FadeIn As String
FadeIn(Me)
End Sub
Then I get a different error saying Expression is not a method.
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Aug 4, 2011
i have these 3 sets of code that are giving me INT() errors. Error: Expression is not an array or a method, and cannot have an argument list.
Code1:
Private Sub Form6_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim Browser As New WebBrowser
[code]....
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Apr 22, 2009
Imports System.Reflection
Public Class Test
[CODE]......................
'This line indicates a compile error: 'Expression does not procedure a value':
[CODE]..................
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Oct 28, 2009
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.
[Code]...
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Dec 5, 2011
I have been working on this project all night and think that sleep deprivation is preventing me from figuring this out. I have a base class from which 5 derived classes are under. I am getting an error in the HourlyWorker class that I just can't seem to get past. The error I am getting on the 2 highlighted in RED "wage": Expression is not an array or a method, and connot have an arguement list
I checked the MSDN and it says to correct the error to remove the arguements list. This is confussing because I need it to validate wage > 0
[Code]...
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May 4, 2012
I don't know what I have done wrong in this code using vb 2010 express, well here it is anyway
MsgBox(10)
MsgBoxStyle.Critical()
MsgBoxStyle.OkOnly("ERROR")
I get three errors of expression is not a method
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Jan 9, 2012
I am getting an error when trying to call a form from within a method:
Expression is not a method
My code structure looks like this:
Public Class frmMain
Class Server
Private Shared Sub StringMessageReceived()
[Code]....
How can I call the windows form within the class?
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Feb 23, 2010
How would you convert this to VB (using .NET 4.0 / VS2010) ?
bw.DoWork += (o, args) =>
{
Code Here
};
I thought maybe like this:
AddHandler bw.DoWork,
Function(o, args)[code]....
But it says Function does not return a value on all code paths.
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Jan 27, 2012
I have an inline lambda expression that I would like to use throughout my application. I just can't seem to find a reference on how to do this with more parameters than the element being tested. Here is a quick example of what I currently have.
Private Sub Test()
Dim List As New List(Of String) From {"Joe", "Ken", "Bob", "John"}
Dim Search As String = "*Jo*"
[Code].....
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Jan 11, 2012
I want to create a (vb.net) method and call it from an expression like this:
=Code.WhereDoIWriteThiscode(Fields!SomeValue.Value)
Where do I write this WhereDoIWriteThiscode method ?The documentation says it is an embedded method.
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Oct 15, 2008
In debug mode I get into a line that evaluates to false because the expression cannot be evaluated because of "Cannot evaluate expression because the code of the current method is optimized." Program does not assert or error out. If Item.Length then . . . (Here when I hover the mouse it displays "Cannot evaluate expression because the code of the current method is optimized"). What interesting is that it only occurs in one of .vb files.BTW, I'm programming in Compact Framework.
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May 23, 2012
The following LINQ query resp. call of the extension method Select in Visual Basic 2010 is working fine:
Dim qAvSalary = qJobData.Select(Function(e) e.AvSalary) But doing so I am not able to specify the name of property I want the query (e.g. AvSalary) using a string variable. This should be possible if I use a LINQ expression tree. Searching and trying a long time on how to translate the query to a corresponding expression tree was not successful. My final approach is:
[Code]...
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Jul 13, 2011
Why does my the declaration of my string in the code result in the following error? Is there a workaround?
Code:
<script runat="server">
Protected Sub form1_Load(sender As Object, e As System.EventArgs)
Dim x As String = "</script>"
[code]....
Error: Statement cannot appear within a method body. End of method assumed.
Note: The following page did not fix my issue and instead resulted in the string </script> being output in my page. ( VB.NET hates </script> tag in string literal )
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Mar 25, 2012
I'm trying to update data to a Access data base using the following [code]...
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Jul 18, 2008
This is not a homework of mine and i had never tried ms access database with vb so i just gave it a shot. so this is my first time and i am just trying not asking anyone to complete my homework. I have been searching for this a lot on internet but couldn't find a solution to this so i decided to ask this question here.
i have this sql code. what i want to do is that create a basic login form where users puts it's username in the UsernameTextbox and Password in the PasswordTextbox. If the the information match then a message box appears saying that the user is valid and if the information does not exist, a mesage box appears saying the users is not valid. now everytime i execute(run) the code, i come up with this error: Syntax error (missing operator) in query expression ''UserName' = 'Admin' 'PassWord' = 'testing123''.
The field names(UserName, PassWord) are also correct they are same as in the database. the information put in the username and password textbox are correct and they match the information on the database. But i dont know why this error comes up.
My code module is the following:
Imports System.Data.OleDb
Public Class LoginForm1
' Cancel button
Private Sub Cancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Cancel.Click
Me.Close()
End Sub
[CODE]...
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Jul 28, 2011
i use a database in access and I use a query for adaptor and dataset.
The query is next:
Select * from table1, table2 where table1.idsomething=table2.id and table2.name= 'Name1' AND datebirth>=#07.25.1988# AND datebirth<=#07.31.1988# order by datebirth asc
The error is: Syntax error in date in query expression
In the database the format date is dd-mm-yy.Why I have this problem? What is wrong at the query?
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Jun 26, 2009
The 'reader' within the if statement is showing "Expression is not a method", what am I doing wrong?
[Code]...
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Mar 29, 2011
I am having a problem with this code. I have used this code before on other apps and it works, but I don't have a clue as to what is going on here.
This is the whole event. I get a runtime error msg thats says "Syntax error(Missing Operator) in query expression"
I think this is Legacy SQL coding but I don't know how to make it better.
Private Sub btnEdit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEdit.Click
Dim Question As Integer
[Code].....
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Dec 23, 2011
I tried to convert following C# code into VB.NET and got "Expression does not produce a value" error while compiling the code
C# Code
return Fluently.Configure().Mappings(m => m.FluentMappings.AddFromAssemblyOf<MyEntityMapping>())
.Database(SQLiteConfiguration.Standard.InMemory().ShowSql())
.ExposeConfiguration(x => new SchemaExport(x).Execute(false, true, false))
.BuildSessionFactory();
VB.NET Code
Return Fluently.Configure() _
.Mappings(Function(m) m.FluentMappings.AddFromAssemblyOf(Of SubscriptionMap)()) _
.Database(SQLiteConfiguration.Standard.InMemory().ShowSql()) _
.ExposeConfiguration(Function(x) New SchemaExport(x).Execute(False, True, False)) _
.BuildSessionFactory()
The error happens on 2nd last line of VB.NET code, while C# code is compiled without problem.What is wrong with the converting?
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Dec 23, 2011
I tried to convert following C# code into VB.NET and got "Expression does not produce a value" error while compiling the code
[Code]...
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Apr 9, 2009
After moving afew things baout on my main form i am getting an error:Expression does not produce a valuein mainly this line of code (various ones are all over my application)
If (checkboxTurnOnDebugging.Checked = True) Then
'Display code for debugging
formDebug.debugTextBox.Text = HTMLResponse
[code].....
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Feb 22, 2010
Im getting a build error with the following code...
Private Property GridViewSortDirection() As String
Get
Return If(TryCast(ViewState("SortDirection"), String), "ASC")
End Get
[CODE]...
It is happening on the following line...Return If(TryCast(ViewState("SortDirection"), String), "ASC")
Error returns...Error 11 C:inetpubwwwrootTPSupportmainUserControlsgrid.ascx.vb(192): error BC30201: Expression expected.
Its a convert from c#
private string GridViewSortDirection
{
get { return ViewState["SortDirection"] as string ?? "ASC"; }
set { ViewState["SortDirection"] = value; }
}
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Feb 7, 2012
I am getting a syntax error " Missing operand after 'Price' operator" with the following code, which should be right but obviously isn't. Any thoughts on where the error is?
table.Columns.Add("ADR Price", GetType(Double))
table.Columns.Add("ORD Price", GetType(Double))
table.Columns.Add("Currency Price", GetType(Double))
[code].....
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Feb 22, 2010
Im trying to use a replace function ...that replaced bad words out of a textbox I found this example on the net but there is a little error
this is my code
Function ReplaceBadWords(InputComments)
Dim badChars, newChars, i
'create our array of bad words
badChars = Array("rubbish", "crap", "shit")
[code]....
the error is 'Array' is a type and cannot be used as an expression'
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Sep 24, 2010
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.
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Oct 20, 2009
I am using VB.Net 2008 Express.I am trying to move a button on a form, the button status is unlocked. The code that I want to use is:
Me.btnEnter.Location.Y = 474
However, I get the error message, "Expression is a value and therefore cannot be the target of an assignment" If I now code as follows, I get the error message, "Property access must assign to the property or use its value"
Me.btnEnter.Location.Y
The errors appear contradictory. Just to check, I wrote the following
X = Me.btnEnter.Location.Y
And when run I received the correct answer of 535.What is happening? What am I missing?
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Dec 18, 2009
I have done the following in a LoginForm:
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
If UsernameTextBox.Text = ("username") And PasswordTextBox.Text = ("password") Then MainMenu.Show(Me.Hide) Else MsgBox("Wrong")
End Sub
But it gives me the following error:
Error 1 Expression does not produce a value (on Me.Hide)
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Feb 20, 2012
I've spent 2 days to figure this out, but no luck. I have an IIF expression what shows the correct value when the condition goes true (IPmt calculated), but the else always returns #error, although it should be just 0. =IIf(Fields!PaymentNumber.Value<>0,
[Code]...
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Jun 20, 2010
Anybody see anything wrong with this when I am inserting data into access
Dim cmd As New OleDbCommand("INSERT INTO SiteInformation VALUES(_TITLE)", connection)
cmd.Parameters.AddWithValue("_TITLE", "test")
I get syntax error in query expression '_TITLE'.
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