Difference Between Int32 And Int64?
May 13, 2009what does the convert command do in vb.net? and could you tell me what difference is between int32 and int64?
for example
dim h as integer
h=convert.toint32(textbox1.text)
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Option Infer - Detect Whether The Integer Should Be Int64 Or Int32?
Feb 3, 2011Will that detect whether the integer should be int64 or int32? What about if we run the program twice. Once we use small numbers and latter we'll use big numbers?
Let's look at this for example: vb.net Dim vector1 As List(Of Int64)Dim vector2 As List(Of Int64) vector1.Sort()vector2.Sort(Function(x As Int64, y As Int64) As Int64Return y - x
What about if I do: vb.net vector1.Sort()vector2.Sort(Function(x As Int64, y As Int64) As Int64Return y - x
[URL]
.net - Convert A List (Of KeyValuePair(Of String,Int32) Into A Dictionary(Of String, Int32) Using .ToDictionary?
Nov 2, 2010To be able to sort a dictionary by value I'm using this code:
Dim idCurrentJobs As IDictionary(Of String, Int32) = New Dictionary(Of String, Int32)
'The string in the dictionary represents a jobname and the integer is a counter for how many jobs im currently are running in the application'
idCurrentJobs.Add("JobName1", 2)
[code]....
Int64 Not Working Above 2^53?
May 19, 2011In working with large prime numbers, I appear to have stumbled on a problem. Powers of 2 are showing up okay, but when I try to add or subtract from them, I get erroneous results. Below are the powers of 2, minus 1, for exponents 51 through 56. Notice that, starting with exponent 54, The resulting number is even, which is obviously incorrect. I used data types INT64 and UINT64 and got the same results for each.Here is my code and a partial list of the results:
Dim i, iTest
As UInt64
rtbIsPrime.Text = ""
[code]....
Int64 The Same With Long?
Apr 4, 2011Be it in 32 or 64 bit system?
View 3 RepliesConvert IntPtr To Int64?
Sep 24, 2010How can I convert IntPtr to Int64?
vb
Convert.ToInt64(GetForegroundWindow())
error :Unable to cast object of type 'System.IntPtr' to type 'System.IConvertible'.
Converting Int64 To Dateticks
Dec 21, 2009Im reading data from a VB random file.
Using dim value as int64, the output is: 4674762526611734528 Using dim value2 as date, then converting to dateticks, the value is 627740064000000000 The actual date is: 26/03/1990
Why is the int64 value not the same as the dateticks value?? How do I convert the int64 value to dateticks value?
.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?
Convert 2 X Int16 To Int32
Dec 13, 2009I want to reflect the bit patterns in 2 x int16 (an upper and lower 16 bits) into a single int 32. how can this be done, is bit converter what I am looking for?
View 2 RepliesValue Was Either Too Large Or Too Small For An Int32
Jun 1, 2009I have writen a program in Visual Studio 2005 professional. Part of the program functions is to store customers details. Part of this details include a phone number. I can add a customer and include his/her telephone no. which is 12 digits long. But when retreiving this customer I get the following error.Value was either too large or too small for an Int32. Couldn't store <+23320805060> in Phone Column.Expected type is Int32.The program runs fine If the phone numer is less than or = 9 digits. The datatype i am using is for the phone column is varchar(50). I have tried to change the data type to bigint, int and nvarchar(50) but the problem seems to persist. I am using the SQL database but i seem to be hitting a brick wall on this matter.
View 10 RepliesCheckErrorStatus(Int32) Compiling My Application
Aug 31, 2010I'm getting following error while compiling my application. Overflow Exception .... CheckErrorStatus(Int32). It has something to do with my drawing. The strange thing that my computer (where I made the application) doesn't give any error, but my clients-computer gives an error. Strange...I really don't know what could give the error...and some solutions. I've been working for one full year on the application and it works great...except not on the clients pc
View 10 RepliesDataGridView :: Object Must Be Of Type Int32?
Apr 20, 2012I'm having a problem regarding DataGridView. It keeps getting an error about "Object must be of type Int32". Here's my code:
rivate Function NumStrings(ByVal sSource As String, ByVal sMatch As String) As Long
NumStrings = (Len(sSource) - Len(Replace(sSource, sMatch, vbNullString))) Len(sMatch)
End Function
[code].....
Error Converting From String To Int32?
Jan 27, 2010I am playing around building a VB.net windows forms app.Mostly going well, but when I do executenonquery I am getting the error:Failed to convert parameter value from string to int32. I am unclear where the problem is but here is my code......
Private Sub cmdClockIn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdClockIn.Click
Dim empNum As Integer = Convert.ToInt32(frmMain.txtEmpID.Text)
[code]....
LINQ To SQL Can't Cast Int32 To String
Nov 5, 2010I'm getting this error
Unable to cast object of type 'System.Int32' to type 'System.String'.
when doing a routine LINQ to SQL query:
Return (
From n In DbContext.Newsletters
Where n.NewsletterID = NewsletterID
[Code]....
How is it possible that an Int32 can't be cast to String? How can I debug something this? Since it all happens deep in the bowels of LINQ, I can't even get any indication what field this is angry about.
Failed To Convert Parameter Value From A String To A Int32
Apr 21, 2009I have an update query and I'm receiving the error "Failed to convert parameter value from a String to a Int32."
I'm assuming this is because of a format issue... I'm using Text and Date formats. I've tried a few things but I'm not sure exactly what is causing this error.[code]...
Failed To Convert Parameter Value From A String To A Int32?
Apr 15, 2012i am trying to save data from unbound datagridview to sql database.Failed to convert parameter value from a String to a Int32. The following is my
Private Sub btnPlace_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPlace.Click
' Modify the following code to correctly connect to your SQL Server.
[code].....
Failed To Convert Parameter Value From String To Int32
Jan 28, 2011I'd like to see what is about to be sent to the SQL Server from my SqlCommand before SQLCmd.ExecuteNonQuery() runs.
I'm trying to debug because I am receiving the following error:
System.FormatException: Failed to convert parameter value from a String to a Int32.
Normally, I would use SQL Server Profiler to view what is being sent to SQL Server, but my statement is not making it that far. Is there a way to determine what it is trying to convert? I am having problems determining which parameter is causing the error.
Read Seek And Get Int32 In Binary Mode?
May 1, 2011i trying to seek 78 from beginning and get the int32 in binary mode..
View 1 Replies.net - Casting From Int32 To 'Microsoft.DirectX.Direct3D.VertexShader'?
Mar 4, 2010How to solved error Unable to cast object of type 'System.Int32' to type 'Microsoft.DirectX.Direct3D.VertexShader'
We want to case ''System.Int32' value into 'Microsoft.DirectX.Direct3D.VertexShader'
I tried with CType but not working.Also tried mD3DDevice.VertexShader = CObj(D3DFVF_CUSTOMVERTEX_BOX)
Failed To Convert Parameter Value From A String To A Int32 Error
Sep 21, 2009This question is based on VS 2008 using VB I have a detail Window form which is bound to a SQLServer table using a BindingSource &TableAdapter. The Table is mostly Text & Date fields with the Table Key has an Identity field
[Code]...
VS 2008 - Failed To Convert Parameter Value From String To Int32
Jun 5, 2010I am getting an error - "Failed to convert parameter value from a String to a Int32"
Background Information:
Table: Customer
Fields: CustomerID, Title, Forename, surname, street, town, country, postal code, home phone, mobile phone, work phone, email.
All the data types in this are Strings with the exception of CustomerID.
Table: Country
Fields: CountryID, Country
CountryID = Integer, Country = String
There is a relationship between country.country and customer.country. I have made country a combo box with the contents of country inside it. This problem is resolved if I remove country as an input - but I need it in!
C# - .net Type Mismatch Looking Up A Constructor By Reflection (Integer() Vs System.Int32[])?
Jan 29, 2010I'm passing a type name and some parameters from C# code into a navigation framework written in VB. The navigation framework looks for a constructor on the type that matches the parameters passed in using Type.GetConstructor(Types()). The constructor that I'm looking for expects an array of integers Integer() in vb. But it gets an array of System.Int32. I've gone so far as to try this:
[Code]...
And the VB code still sees System.Int32 on the other end, which means that it doesn't find the constructor.
Code - Error Which Says Failed To Convert Parameter Value From A String To A Int32
Oct 2, 2009I have this code but the problem is that I get an error which says "Failed to convert parameter value from a String to a Int32." Here is the code that I am using:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim conn As New OleDb.OleDbConnection
conn.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source = C:Documents and Settings1B09158My DocumentsUser.mdb"
conn.Open()
[CODE]...........................
.net - CLR FormatException Thrown When Databinding An Int32 Field To A Nullable Decimal Property?
May 28, 2012I have written a .Net 4.0 Winforms Numeric Editor control (which inherits from TextBox), and I have added a Value property that is a nullable decimal type, as follows:
Public Class NumericEditor
Inherits TextBox
Private _value As Decimal? = Nothing
[code]....
how to get around this exception, particularly when I'm databinding a number field to a number property, and there should be no string conversion happening. (To further complicate things, I'm using a similar technique for another control where I databind a DateTime field to a nullable DateTime property, and that control works just fine.)
Sql - Error The SqlParameterCollection Only Accepts Non-null SqlParameter Type Objects, Not Int32 Objects?
Jun 23, 2012I am getting this error, Not sure why it is happening "Error The SqlParameterCollection only accepts non-null SqlParameter type objects, not Int32 objects."I have tried with all sorts of possibilties, now try to enter default data as dummy data,
Using connection As New SqlConnection
connection.ConnectionString = ConfigurationManager.ConnectionStrings("DentalDeviceConnectionString").ConnectionString
connection.Open()[code].....
VS 2008 : Error - Cannot Perform 'Like' Operation On System.Int32 And System.String"
Nov 2, 2009I'm trying to use DataView.Rowfilter and I'm getting an exception which says "Cannot perform 'Like' operation on System.Int32 and System.String".
Here's the code...
Dim str2 As Double = CDbl(searchSTR)
Me.shipperDV.RowFilter = fieldName & " LIKE '*" & str2 & "*'"
DB/Reporting :: Error: Cannot Perform '=' Operation On System.Int32 And System.String
Mar 6, 2010I wrote the code below which calculates the length of a line on the form and save record. An error occurs when the programme tries to save the record. It gives me "Cannot perform '=' operation on System.Int32 and System.String" error. I checked the data type of "ID"(int), "Microscope"(Varchar), "Magnification"(int) and "Calibration"(Decimal), and they are fine so far as I know.
Code:
Private Sub btnEnd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEnd.Click
'Check if the length textbox is not empty
[Code].....
The Null Value Cannot Be Assigned To A Member With Type System.Int32 Which Is A Non-nullable Value Type?
Aug 18, 2010When i execute this linq to sql command its given an error "The null value cannot be assigned to a member with type System.Int32 which is a non-nullable value type." 0 Records in my Commotidy Table
I want generate manual number and get the last CommodityCode.My Code as follow,
Dim QRecordCount = From RC In cntxtCommodity.CommodityMasters _
Where RC.CommodityCode <> 0 _
Select RC.CommodityCode[code].....
Extend Primitive Types Such As System.String And System.Int32?
Jul 25, 2010Is it possible to extend primitive types such as System.String and System.Int32 (IE: integer) in .Net 4 and if so how?
To be more specific, I am aware of the concept of partial classes but this doesnt seem to be the answer. Also I find that System.String is not inheritable and Int32 is a structure.
Lastly I am interested in knowing both a VB.Net and C# answer to the above question.
Subsonic Invalid Cast From System.Int32 To System.Byte[]
Feb 22, 2010Subsonic 2.2 is throwing the error
subsonic Invalid cast from System.Int32 to System.Byte[]
When I do the following
If template.Content Is Nothing Then
MsgBox("Blank Document")
Else
MsgBox("Document Present")
End If
"template" is a SubSonic object of which it's "content" field is of type Byte()
