Option Strict On Disallows Operands Of Type Object For Operator Use The 'Is' Operator To Test For Object Identity
Apr 6, 2012
I need to write an interface to get data to/from our data files.
We have a low level class that holds field values for each record read from the files.
This just holds two values, the value read from the file (DBValue) and the updated value that may need to be written back to the file (CurrentValue).
These values may be any of the standard value types (integer, date etc) or a string.
Either value (DBValue or CurrentValue) may be null if not defined.
I have written the class to manage this data which works fine while option strict is NOT on.
But we have an office policy of having option strict on all the time.
When I put option strict on, my object value comparisons fail with the error: "Option Strict On disallows operands of type Object for operator '='. Use the 'Is' operator to test for object identity."
Question, how should I change the following code to handle option strict on ...
This is all running on Visual Studio 2010
[Code]...
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Jan 27, 2010
I am tightening up my coding with the Option Strict set to ON. It has now produced alot of errors. An example of this is:
If AllocatedDGV.Rows(i).Cells("RoomNumber").Value = RoomsAvailableDGV.Rows(j).Cells("RoomName").Value Then
It gives me the following error: Option Strict On disallows operands of type Object for operator '='. Use the 'Is' operator to test for object identity.
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Oct 7, 2010
Given this definition of an incoming byte array I get the following error.
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Aug 4, 2009
Dim lastidcmd As New SqlCommand("SELECT MAX(ProformaID) FROM " & IIf(boolException, "ImportException_Proforma", "Proforma") & " WHERE SupplierId=" & CustomerId & ";", con)
in the part marked in red I get this error:Error71Option Strict On prohibits operands of type Object for operator '&'.how can I fix this. I turned on Option Strict today and got this error.
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Oct 17, 2009
How can I get round this error: Option Strict On disallows implicit conversions from
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Nov 21, 2010
When I try to write the following code, I get error message:Option Strict Disallows Operands of Type Object use Is
HTML
If dtrow.Item("BathNew") = 0 Then
dtrow("BathNew") = dtrow.Item("BathsTotal")
when I use Is I get the error message:Is requires operands the have reference types
If dtrow.Item("BathNew") Is 0 Then
dtrow("BathNew") = dtrow.Item("BathsTotal")
End If
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Jul 5, 2011
I have an error in my VB.net program - I have tried various casts etc but it just will not resolve the issue - so reluctantly I post it here to see if anyone else has a similar problem.
Error 1 Option Strict On disallows implicit conversions from 'Object' to 'String'.
Private DS As New DataSet ' Languages
Function TransTxt(ByVal Frm As String, ByVal Item As String) As String
[Code]...
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Apr 6, 2009
I get "Option Strict On disallows implicit conversions from 'Object' to 'ExpTreeLib.CShItem'.", which is a listview that I have on my form, which references expTreeLib.dll
[Code]...
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May 5, 2011
Okay, I am TOTALLY confused here. I have a class... say MyClass. It has several properties of another class of my type, say MyHelperClass (along with other properties).
I am doing the following:
Dim inst As MyClass = New MyClass() With {
.p1 = sv1,
[code].....
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Sep 7, 2010
I turned Option Strict On and i get an error on all the ".Cells" lines saying option strict on disallows late binding.
a = 1
b = 3
c = 2
d = 1
With oSheet
[CODE]..................
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Oct 22, 2011
I am in need of help with a project which I am completing.This is what I am currently working with:
If RadioButton1.Checked = True And ComboBox2.Text = "Rate 1" Then Dim Rate(0 To 3) As String
Rate(0) = Math.Round(((85 + (TextBox2.Text - (150 * TextBox1.Text)) * 0.25) / 3) * 100, 0)
Rate(1) = Math.Round((85 + (TextBox2.Text - (150 * TextBox1.Text)) * 0.25) * 100, 0)
Rate(2) = 25
Rate(3) = "F" + TextBox2.Text
[Code]...
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Jun 30, 2011
[Code]...
I really prefer to keep Option Strict On. the proper way to do this?
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Feb 27, 2009
Private Sub cbxSubject_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cbxSubject.SelectedIndexChanged
Select Case cbxCategory.SelectedItem
[code]....
I get this error message:Option Strict On disallow operands of type Object for operator '='. Use the 'Is' operator to test for object identity.But I don't know how to correct this.
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Aug 12, 2011
http://127.0.0.1:47873/help/1-6644/ms.help?method=page&id=C318B79A-FA4D-4DE3-B62D-C1162BEB267E&product=VS&productVersion=100&topicVersion=100&locale=EN-US&topicLocale=EN-US
and i get the following error
[code].....
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Jul 30, 2009
I am new to VB .NET I am having an error:Option strict on disallows late binding, when I execute my script. So I turned off the "option strict off" then I got the error: cannot create activex component, at microsoft.visualbasic.interaction.createobject(string progId,string serverName) what is wrong in this code.
[Code]...
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Aug 17, 2010
The only advise i have been given is turn option strict off. which i think is a bad ide
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Oct 16, 2009
How do I code this routine to work with Option Strict On? I understand it is a late binding problem but I don't know enough about how to correct.
Code:
Dim parms As String = ""
For Each chk In Me.GroupBox1.Controls
If TypeOf chk Is CheckBox Then
If chk.Checked Then
parms &= chk.Tag.ToString & " "
End If
End If
Next
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Mar 9, 2009
I am migrating VB 6.0 code to C#.Net via VB.NET. To prevents typr conversion errors, Option Strict needs to be on. However this is giving me the error 'Option Strict On Disallows Late Binding' on these follwowing lines of code. The code is to read the Global Address Book and the contacts before sending mail using MAPI.
objMAPIMessage = objMAPISession.Outbox.Messages.Add
colAddressEntries = objMAPISession.AddressLists("Global Address List").AddressEntries
colAddressEntries = objMAPISession.AddressLists("Contacts").AddressEntries
objRecip = objMAPIMessage.Recipients.Add
[Code]...
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Apr 27, 2011
For some reason VS is giving me a number of late binding errors: "Option Strict On Disallows Late Binding".Here is a sample of the
vb.net
If position(start) = status.empty Then
Me.ShapeContainer1.Shapes(veryTop).backcolor = SystemColors.Control
[code].....
The error is occurring on line 2. I was hoping someone knew how to fix it without turning off Option Strict.
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Jul 20, 2011
I'm getting an error which says option strict on disallows data binding.
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May 7, 2011
i am using integer for days and miles, and the calculation is for money so i am using decimal in one function i am allowed to CDec the days for the calculation and the next function it gives me an error.
I dont see where what i am doing is any different than the other.
Function CalcLodging(ByVal intDays As Integer, ByVal decRoom As Decimal) As Decimal
Return (CDec(intDays)) * decRoom ' This function allows the conversion from integer
End Function
[Code].....
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Feb 5, 2011
Option strict on disallows implicit conversion from 'Integer?' to 'Integer', 'Integer' to 'String'
Here's my code which is just a stub. I am working off of some example code and applying it to my own project:
<System.ComponentModel.DataObjectMethodAttribute _
(System.ComponentModel.DataObjectMethodType.Select, False)> _
Public Function GetTrackActivitiesByParams(ByVal ActivityKey As Nullable(Of
[Code]....
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Nov 1, 2011
I've set Options strict On in my project. I've been able to fix most of the code, but am stuck on on: cboCity.SelectedValue = cboFacility.SelectedItem("city_id") This worked fine until I set the option. Is there a better way to do this?
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Oct 5, 2010
I've got option strict on.
HTML
Dim MyNode As System.Xml.XmlNodeList = xDoc.GetElementsByTagName("Placemark")
For Each m_node In MyNode
[code]....
This is giving "Option Strict On disallows late binding"
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Mar 18, 2009
I have seen numerous errors with this, but I am a bit confused. I am taking a vb.net class now, and we are learning that Option Explicit is definately the way to go in all projects to make sure you follow some coding standards and to deviate from sloppyness.
Anywho, could someone explain what late binding actually is? I have seen a few definations of it, but nothing really makes sence. I know that you have both Early and Late Bindings, and from what I can understand, it is where you reference what you will be using in your project (as in references?)
[Code]...
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Jan 27, 2012
I am working with another programmer's code. Had it been my code from scratch, option strict on would've been set. But it wasn't. So I turned it on and I have 46 errors. That doesn't bother me as they're usually simple issues but I do not understand late binding What is wrong with this code?
Dim Level2ApproverList As New ListItemCollection
For Each approver As String In Level2Approvers
Dim ItemArray As Array = Split(approver, ",")
[code].....
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Feb 23, 2010
I have the following query
Dim get_rmf_2 = From rmf In t_rmf _
Where rmf!NIVP = nivp_rap
When i run it i get an error :
Operator '=' is not defined for type 'DBNull' and string "test".
I suspect this is because the column "NIVP" in the datatable contains null values, I've tried yhe same thing without null values and it works.So how can i make this work ? ; the column "NIVP" really has a row "test" , and a normal SQL query works fine.
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Nov 20, 2011
[code] I get the error message of "Option Strict disallows implicit conversion from Long to UInteger." [code] I dimensioned each variable as a UInteger and not a Long, the values for both X & Y are well below the maximum values of a UInteger as far as I can tell (Data Types Summary). [code]
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Feb 22, 2010
How do I correct the error Option Strict On disallows implicit conversions from 'Double' to 'Integer'. ?
The two lines below that divide by 2 are causing the error.
Private Function StringToByteArray(ByVal hex As String) As Byte()
Dim NumberChars As Int16 = CShort(hex.Length)
Dim bytes As Byte()
Dim i As Integer = 0
bytes = New Byte(NumberChars / 2) {}
[Code]...
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Sep 2, 2009
Dim I As Integer
Dim iCount As Integer
Dim clrHashForeColor As Object
Dim clrHashBackColor As Object
cbotifcompression.Items.Add("LZW")
[Code].....
I get the error for both highlighted red parts = Option Strict On disallows implicit conversions from 'Integer' to 'Short'.
Also
I get = Option Strict On disallows operands of type Object for operator '='. Use the 'Is' operator to test for object identity.
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