Error: Expression Does Not Produce A Value

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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C# - Error: Expression Does Not Produce A Value

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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Error 1 Expression Does Not Produce A Value (on Me.Hide)

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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Wpf - Subscribing Events - Error "3 Expression Does Not Produce A Value"

Aug 28, 2011

I'm trying to convert some C# code to VB.NET. I have the following in C# (which works)

[Code]...

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Expression Does Not Produce A Value

Oct 28, 2009

'I am having trouble with the line "senda = suba(sendaobj, EventArgs.Empty)". [code]...

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Expression Does Not Produce A Value?

Aug 25, 2009

Here's the

Sub DestroyUser(ByRef Victomcheck As Integer, ByRef Victorcheck As Integer)
Dim num As Object
WriteSub("destroyuser")

[Code]......

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Creating Variable - Expression Does Not Produce Value

May 1, 2011

Why I cannot get a variable to come in. I keep on getting the error "Expression does not produce a value" for one of my Dims.

Imports System.IO
Public Class Main
Dim image_1 As Integer = Openimg1.FileName
'The line below is the one causing my problem
Dim image_2 As Integer = My.Computer.FileSystem.RenameFile(Openimg1.FileName, "_hid" + System.IO.Path.GetExtension(Openimg1.FileName))
[Code] .....

So basically, how can I create a variable from something that has yet to be created?

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Error Updating Access DB :: Syntax Error (missing Operator) In Query Expression

Mar 25, 2012

I'm trying to update data to a Access data base using the following [code]...

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MS Access And VB Error - Syntax Error (missing Operator) In Query Expression

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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Error : Syntax Error In Date In Query Expression

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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Get A Runtime Error Msg Thats Says "Syntax Error(Missing Operator) In Query Expression"

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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Dll Error: Expression Is Not A Method?

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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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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VS 2008 Expression Value Error?

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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Asp.net - Expression Expected - Getting A Build Error

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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Datatable Column Expression Error?

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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Error 'Array' Is A Type And Cannot Be Used As An Expression

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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Error - Checkbox Is A Type And Cannot Be Used As An Expression

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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Error - Expression Is A Value And Therefore Cannot Be The Target Of An Assignment

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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ReportViewer IIF Expression Returns #error

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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Syntax Error In Query Expression

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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VS 2008 ERROR: Argument 'Expression' Is Not A Value Value

Feb 3, 2011

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.

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Error In A Part Of The Date Format. [ Expression (if Known) = ]?

Aug 14, 2011

I am trying to save date in my database' datetime field.My variable catches date as

vrDteTimePprBgn As Date = Today.Date
then I save it as

drNewRowMCQsAns.Item("DTE") = vrDteTimePprBgn

At runtime, I get error .There was an error in a part of the date format. [ Expression (if known) = ]

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.net - StreamWriter - Error BC30201: Expression Expected

Nov 26, 2010

[Code]....

This is the compiler error BC30201: Expression expected. The line that caused it is the Dim sw line.

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Add Date Into Db Is Showing Error In Query Expression

Jul 10, 2011

[code] when i try to add date into db >> is showing me that error ( Syntax error (missing operator) in query expression '10/07/2011 07:45: )

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Delegate Function .net : Error Says Expression Expected

Aug 13, 2010

Having problem understanding Delegate error. Error says expression expected, How do I fix?Here is the offending line (#259)....

mylist.ForEach(Delegate Function(P As linkItem) As System.Char[] )

Here is the entire code.

<script language="VB" runat="server">
Function sectionTitle(ByRef f As String)
'Open a file for reading

[code]....

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Error "Expression Expected: Byal 0&

Apr 26, 2010

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.

[Code]...

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Error : DdressOf Expression Cannot Be Converted To Integer

May 23, 2012

Migrated application from vb6 to vb.net. application calling VC++ method. whoes parameter is int/long which is pointer of method

which is passing from vb6 like

VcMethod(addressof vb6Method)

I am getting error ddressOf expression cannot be converted to integer.I know addressof working different in vb6 it givie value in int which is function pointer. Please suggest how can I get value of fuction pointer in vb.net or any other solution in this situation.

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Error DataType Mismatch In Criteria Expression

Dec 21, 2011

I had error when want to run my program It show me My coding is as below:

[Code]...

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Error: Datatype Mismatch Criteria Expression

Jul 21, 2011

I have write one SQL UPDATE query. In that am running the form in VB.NET at the time of update the data am getting the below error.

[Code]...

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