What Does This "-=" Operator Means
Nov 9, 2010what does this Operator -= mean?
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Error: Option Strict On Disallows Operands Of Type Object For Operator '='. Use The 'Is' Operator To Test For Object Identity
Jan 27, 2010I 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.
Option Strict On Disallows Operands Of Type Object For Operator Use The 'Is' Operator To Test For Object Identity
Apr 6, 2012I 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
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Coalesce Operator And Conditional Operator In .NET?
Mar 10, 2009Possible Duplicate: Is there a conditional ternary operator in VB.NET?
Can we use Coalesce operator(??) and conditional ternary operator(:) in VB.NET as in C#?
Dim Array() As String Means And What Dim Array As String() Means?
Nov 20, 2010What Does : Dim Array() as String means and what Dim Array as String() Means?If I pass a array to function like below:Public Sub Array_AddSomething(ByVal strEntry As Object, ByRef strArray() As Object)
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What Does () After Each One Of These Declaration Means Are They Arrays
Nov 19, 2009i am still new in VB.net if someon can just help with these codes below: [code] what does the () after each one of these declaration means are they arrays?!
View 2 RepliesWhat Exactly Does 'calling Code' Means
Dec 13, 2010What exactly does the "calling code" means? A method to do an action?or else.,
View 6 RepliesWhat The First Line Of Each Property Means
May 5, 2009I have been given the following code that I want to change to VB however I dont understand the first line of every property:
1<ConfigurationProperty("mailSubject", DefaultValue:="Mail from TheBeerHouse: {0}")> _
2 Public Property MailSubject() As String
3Get
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Dataset.clear Method - What Does It Actually Means
May 13, 2009I think I've misused this method and would like to know what it actually does.I 've looked it up on msdn forum and found this
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What does it mean by removing all the rows in all tables? Is it the datagridview table? When it says "removing", does it mean that it deletes everything?
The reason I misused it is because I thought dataset.clear means it flushes the record held in dataset.
When I click on the add new icon on bindingnavigator, a new form will appear, which allows me to insert data
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when I close the insert form, the parent form will be activated and datagridview will display the new record I just inserted. I thought the dataset.clear method helped display the new added record but then I realised I could do without the dataset.clear method.
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Me.control.InvokeRequired Property Means?
Aug 25, 2009Me.datagridview.InvokeRequired property means in vb.netadil
View 3 RepliesVS 2010 Anybody Know What 'Long' Type Means?
Apr 11, 2011I saw something really strange today, that I have not seen before.I saw a variable declared as:Dim a as Long? I am obviously familiar with the Long datatype but what is Long?
View 4 RepliesDelete A Certain Row By Either Double Clicking It Or By Means Of Another Form?
Feb 21, 2010how do i delete a certain row by either double clicking it or by means of another form.
View 2 RepliesHow Does The Program Know That The Public Property X And Y Means The Coordinates Of The Object
Nov 9, 2011I've got a piece of code of a class. When initialised a new object is made on a picturebox. But what I don't know is how does the program know that the public property x and y means the coordinates of the object?
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Make A Facebook Application For Messages Purposes Means From That App?
Apr 30, 2011i want to make a facebook application for messages purposes means from that app i want to send and receive messages only?
View 11 RepliesTrigger Event Whenever Seconds On Stopwatch Change That Means Every Second?
Mar 6, 2009Is it possible to trigger event whenever seconds on stopwatch change (that means every second, but it has to be synchronized with seconds)?
View 6 RepliesVS 2005 E.Handled = True Means We Can Enter A To Z And A To Z In Textbox?
Nov 17, 2009Private Sub TextBox4_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox4.KeyPress
If (e.KeyChar < "A" OrElse e.KeyChar > "Z") Then
e.Handled = True
End If
End Sub
If e.Handled = True means we can enter a to z and A to Z in textbox.If e.Handled = False then what it means??
Does Changing Generic List Capacity Means Copying Contents?
Mar 31, 2009If I increase the capacity of a given list, or add elements until count>capacity, does this mean the program is actually copying the entire list's contents to a new space in memory (similar to redim preserve with arrays)? If so, than I have really been hurting the performance of my lists, as before I was inserting and adding without a second thought. This seems a strong restriction on the dynamic abilities of lists.
View 2 RepliesWhat This Line Means - Inherits System.Windows.Forms.Form
Mar 20, 2009What this line means? Inherits System.Windows.Forms.Form
View 3 RepliesHow To Use Operator As A Comparison Operator
Nov 11, 2009I want to perform equality comparison in VB.NET and cannot get it to work. Error: value of type Boolean can not be converted to System.Drawing.PointF
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CNC Control Program, Based On A DLL - Acces All Functions By Means Of Softkeys ( F-Keys At Top Of Our Keyboards )
Apr 8, 2009I'm working on a CNC control program, based on a DLL that someone else wrote. No problems with that sofar, as i get good support from the writer.
The problem i do have to tackle is the following: I want to acces all the functions by means of softkeys ( the F-Keys at the top of our keyboards ) when the program starts it shows the Main menu softkeys ( F1-F12), and each F-key has a function assigned to it, some will make the machine move, others will show another menu, or a fileopen/save dialog, depending on the chosen keys.
All works fine and handy-dandy, except for the F10 key, it seems to be "Sticky", when i press it, the program will not react to any other key, only the F10 key can get it back in "normal state" accepting every key with a function assigned..
How to "unstick" the F10 after pressing it?.. because pressing F10 now, means no other key will do anything, and that may become dangerous, when the machine is moving and it must be stopped..
Where To Place Database In VB Project And How To Access With C:,D: Etc Means Open Location Not Fixed Location
May 3, 2010dim cn as oledbconnection
cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:valid.mdb")
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Modify Few Byte In A File Via A Stream Does That Means That Full File Is Rewritten?
Jun 9, 2010If i use a stream to modify few bytes in a file without changing the total number of bytes
does the stream rewrite all the file even if just few bytes have been replaced?
Statment "tags As HtmlElementCollection = WebBrowser1.Document.All" Means?
Aug 21, 2010tags As HtmlElementCollection = WebBrowser1.Document.All
View 4 RepliesTake Turn Start Which Means Timer1 Stop Then Timer2 Start?
Jul 23, 2009I created 3 timers, i want each timer to take turn start which means timer1 stop then timer2 start, once timer2 stop timer3 start. But my code seem to be running together once i click the play button.And is there any ways to easy control how my picturebox move? Because my code for controlling it movement need to keep finding the correct number for it to move.
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Modifying Program Means Modifying One Aspects
Mar 16, 2011Locality Not repeating code..Modifying program means modifying one aspects.
View 11 RepliesWhat Does "Resources:Labels" Means
Jul 19, 2010I'm trying to read my boss code an I ran into this code that I haven't seen before.
<asp:Label ID="Label5" runat="server" Text="<%$ Resources:Labels, otherPublic%>"/>
What Is A ! Operator
Aug 5, 2009What does the ! mean in the following code snippet?Availability is a table in an access database Family and Model are column headers in the table cmbFamily and cmbModel are combo boxes.
If Availability!family = cmbFamily.Text Then
cmbModel.Items.Add(Availability!model)
End If
add the models of as aircraft family to a combobox(cmbModel) using a selection from another combobox(cmbFamily).
"IsNot Nothing" And "TryCast" Means In Code?
Jan 14, 2009Does anyone know what "IsNot Nothing" and "TryCast" means in code?
View 2 Replies.net - VB Or Operator On Int32 And Int?
Oct 13, 2009whats do Or operator in Vb do when it is applied as follows eg
Dim returnValue As UInt32
Public Const RMA_VC_RET_NULL_PTR_PARAMETER = 1
returnValue = returnValue Or RMA_VC_RET_NULL_PTR_PARAMETER
what does the 3rd statement do?
Byte And The And Operator?
Mar 28, 2012Dim bteJustTheAddress As Byte bteJustTheAddress = RawData(2) And &H7F
RawData is a Byte Array and I know &H7F is the Hex 7F