IDE :: Option Strict: Implicit Conversion Error?
Jan 11, 2011
Dim
Dr As
DataRow
Dr = DataSet11.Jobdata.NewRow
[code]....
With Option Strict On, I am getting an error with the above code, which is part of a procedure to add a new record in an 2003 access database table named "Jobdata". The items in Combobox3 is populated by another table in the same database, which has a Status field and a Key field. What I'm trying to do is to insert in the Status field in Jobdata table the correspoding integer value in Key to which ever
status is selected from the combobox.
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Oct 17, 2009
How can I get round this error: Option Strict On disallows implicit conversions from
[Code]...
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Dec 1, 2009
VB.Net just showing its true colors again? When I turn Option Strict On, I am still able to do implicit narrowing conversions in a for each loop.For example, this code actually compiles;
Private Sub foobar()
Dim foo() As foo = {New foo}
For Each bar As bar In foo[code].....
From my understanding of Option Strict, this should not work.See here "Restricts implicit data type conversions to only widening conversions".My code above is a narrowing conversion, and so should be illegal.It will fail at runtime with an InvalidCastException.
C# does the same thing. Below is another implicit narrowing conversion.
private void foobar()
{
foo[] foo={new foo()};[code]......
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Mar 9, 2012
When I try to read the file, I am getting an error = "Option strict on disallows implicit conversion from string to Char"
[Code]...
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Mar 20, 2011
I am a novice programmer to VB 2008 and I am trying to develop the following code for a game. When I build the following code, an error message appears:
Option Strict On disallows implicit conversion from integer to string.
Another error message
appears: Name FuchsiaTurnScoreLabel is not declared.
Option
Strict
On
Public
Class PlayForm
'Declare integer and decimal variables for calculations
[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 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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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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Jul 6, 2009
I have a DataGridView that is bound to a list of objects called "BaseChange". The BaseChange objects are made up of 4 properties...
ChangeType
ChangeStatus
ChangeDescription
LastChangeDate
The datagridview has columns for all 4 values as well as a 5th (a checkbox column called "colIsSelected"). There is no problem binding the list to the grid and displaying the items. The problem is that the query that gets the selected items in the grid is giving me an implicit cast error when option strict is enabled.
This is the query...
Dim _changes As List(Of BaseChange)
_changes = (From _row As DataGridViewRow In dgvChanges.Rows() _
Where Convert.ToBoolean(_row.Cells(NAME_COLUMN_IS_SELECTED).Value) = True _
Select DirectCast(_row.DataBoundItem, BaseChange)).ToList()
...and it produces the correct results with option strict off. The implicit cast squiggle is on the "row As DataGridViewRow" code, and the full message is "Implicit conversion from 'Object' to 'System.Windows.Forms.DataGridViewRow'*".
If I exclude the "As DataGridViewRow" from the query, I get a late binding error on the _row.Cells and _row.DataBoundItem and this also fails option strict.I need this to work with Option Strict enabled, and in VB.
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Mar 4, 2010
how i have to write this variable not to have errors
Dim divider As Integer = (20 / 3)
Error 1 Option Strict On disallows implicit conversions from 'Double' to 'Integer'
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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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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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Mar 20, 2010
i have this error what i have to change in the code?
TextBox65.Text = Math.Abs(CInt(Val(oddTextBox54.Text))) / Math.Abs(CInt(Val(TextBox56.Text))).ToString()
Error11Option Strict On disallows implicit conversions from 'String' to 'Double'.
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May 20, 2011
[Code]...
How do I convert this proper? (Option Strict On)
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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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May 20, 2011
i have a Problem with UNION for LINQ to SQL I have my LINQ query
Dim dc As New ContainerDB.DataClassesDataContext()
Dim test = (From container In dc.GetTable(Of tbl_container)() Where container.pkContainerID = iPkContainerID).Union( _
From containerHist In dc.GetTable(Of tbl_containerHIST)() Where containerHist.pkContainerID = iPkContainerID)
[Code]...
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Mar 2, 2011
Just wondering what the preferred/practised data type conversion technique is?
For example I recently enabled option strict, which in turn found quite a few errors in relation to data types, vb.net prompted me to use CType, which is fine.
However, I have seen other functions for data type conversion, such as .tostring, CInt , Convert, integer.parse and also Ctype.
Why would you use Ctype over the others?
I know its a pretty primitive question , but why do so many conversion methods exist?
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May 6, 2009
When I have Option Strict ON in my project, the IDE tells me that "Option Strict On disallows implicit conversions from 'System.Data.ParameterDirection' to 'String'." How can this be, since I'm using their built-in enumeration for the SqlParameter direction.
[Code]...
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Feb 6, 2010
I decided to turn on "Option Strict" to see all my implicit conversions that were going on WOW there were alot.I am making changes when I discoverd the following problem:With Option Strict Off , everything works great
Option Strict Off
Dim glahh As Integer = (Me.subj_gla_txt.Text * 120%) / 100
Dim glah As Integer = (Me.subj_gla_txt.Text * 115%) / 100
Dim glal As Integer = (Me.subj_gla_txt.Text * 85%) / 100
[code]....
I get run time error can not convert string "" to Double at the last line That error I thought would indicate that Me.List2_glatxt.Text is empty? I dont see how it could be since that line in the code above as integer works?
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Mar 28, 2010
I have to take over a project written in vb.net, which contains more than 400k lines of code written in option strict off mode. I want to build it under option strict on first before I do anything else -- which maybe converting it into C#. I found there's thousands of lines of code raises compilation error, mostly are about implicit type casts. Is there any tool would help to make it compile under option strict on mode if I don't want to correct every single line manually? Because it's really painful to add CStr/CInt invocation into every line of Code myself.
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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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May 8, 2012
I have my code working well but with OPTION STRICT OFF. I have decided to fixed all my errors in the code.However after setting the OPTION STRICT to "On", my code have lots of errors. I was able to fixed most of the errors with the except of this DIM statement where I think I have to insert CDate to (Mid$(row("TIME"), 12, 8) >= minTime) and (Mid$(row("TIME"), 12, 8) >= maxTime):
[Code]...
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Jun 22, 2010
I can run the code fine without the Option Strict on, but once it's turned on, I run in to a "Option Strict On Disallows Late Binding"...why!?! I can't figure out how to fix it....
'Option Strict On'
Public Class StateFinderForm
Private Sub FullStateNameRadio_CheckedChanged(ByVal sender As System.Object, ByVal e As
[code].....
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Aug 30, 2011
When i use the option strict on my combobox will be error this is my
[code]...
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Feb 7, 2010
code]I tried to use the IS operator, it does not work if the check box is checked.I also tried changing .Value to .State without any success. It is last error I have left since I switched Strict Option On.
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Feb 15, 2012
i turned Option Strict Onand i get an error on all the ".Cells" lines saying option strict on disallows late binding.
Code:
a = 1
b = 3
[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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Apr 19, 2010
While debugging my code for an error, I activated Option Strict On.
I'm getting the error Option Strict On dissallows late binding Here is the code:
Private Function MaxValue(ByVal MVArr As Array, ByVal ArrPos As Int16, ByVal MaxSize As Int16) As Single
Dim ICnt As Int16
[Code]......
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