DB/Reporting :: Error: Cannot Perform '=' Operation On System.Int32 And System.String
Mar 6, 2010
I 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].....
View 4 Replies
ADVERTISEMENT
Nov 2, 2009
I'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 & "*'"
View 7 Replies
Jan 27, 2009
For this code, I'm trying to have it pull the ID of the doctor from the database and only show their patients. I keep getting this error when I try selecting one from the list though, right at the red section.
[Code]...
View 3 Replies
Nov 4, 2010
I get an error "Cannot perform '=' operation on System.String and System.Int32" on the following code:
VB.Net Code:
Public Sub board2_OnGameWon(ByVal sender As Object, ByVal e As EventArgs)
If Not board2.isCheated() Then
Dim time As Integer = board2.getGameTime()' I have tried changing this to String
[code]....
The exception is in the lines where I 'Dim betterScores' above. The idea is that when the player wins a game their score is placed and held in the betterScore variable. It is then written to an xml file later on.
I have a Difficulty Menu item (System.Windows.Forms ToolStripMenuItem) containing 4 choices, 3 of them work but one doesn't. The one that doesn't work is "1.0 (Normal)" and in the Sub New is "adjustDifficulty(mnuDifficulty100)"I have copied some other subs that are associated with this code below.
VB.Net Code:
Public Sub New()
' This call is required by the Windows Form Designer.
InitializeComponent()
[code]....
View 5 Replies
Nov 3, 2009
Here is the code I am working with, everything works fine up until last line then i get evaluate exception unhandled "Cannot perform '=' operation on System.Int32 and System.String." My eyes are going blind trying to figure out whats wrong, if I understand correctly it cant count system string and REO is a string value.
The thing i have done this before ,count that is. I know you cant average strings and some other function but i have been able to count.
d Dim comm As New OleDb.OleDbCommand("Select * From " & Me.OpenFileDialog1.SafeFileName & " Where Status <> 'S'", con)
Dim dalist As New OleDbDataAdapter(comm)
Dim comm1 As New OleDbCommand("SELECT * FROM " & Me.OpenFileDialog1.SafeFileName & " Where Status
[CODE]...
View 14 Replies
Jul 25, 2010
Is 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.
View 2 Replies
May 27, 2011
Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.Sql Partial Class _Default
[code].....
View 5 Replies
Mar 20, 2012
I'm getting a sporadic 'Unable to cast object of type 'System.Int32' to type 'System.String' Exceptions at .SingleorDefault() in the below code. It works 9/10 times but randomly it throws an exception. I made sure that SettingID that i'm passing has no Null Values and the data in the table always exists for the settingID, and i'm always passing SettingID as Integer.
[Code]...
View 4 Replies
Apr 11, 2012
iNCEEB = .First.NCEEB '<-- Im getting the error in this line, iNCEEB is integer .First.NCEEB is short.
NCEEB Server Datatype property is smallint
where is that "to type 'System.String'." coming from?
I'm using vs2008 and mssql2008.
[Code]...
View 8 Replies
Feb 22, 2010
Subsonic 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()
View 1 Replies
Feb 8, 2011
I am using row filter with a like operator on a data view but getting error "Can not perform like on int32 and string" How to solve it
View 1 Replies
May 14, 2012
I'm getting an error after sending a list to a web service.This is the code that is calling the web service:
Dim sProgramInterest As New List(Of Integer)
crmService.InsertProspectGetId(sProgramInterest.ToList)
But I'm getting this error.
[code].....
View 3 Replies
May 1, 2012
If dgCell = "Delete" Then
'make sure user wants to delete the selected record.
If MsgBox("Are you sure you want to delete this image?", MsgBoxStyle.OkCancel,
[Code]....
Error is thrown at "cmdDelete.ExecuteNonQuery()". Sql query still deletes the record. I have run query against the database itself and I get no error. I am using an as400 db and vb.net 2008. I'm not sure if this is problem with the database or vb. I get this error when I run the delete above, also when I run an insert or an update.
View 14 Replies
Jan 29, 2012
I am getting this error when I am tring to load string type to data table)
Using connection As New SqlConnection("connectionstring;")
connection.Open()
Using Command As New SqlCommand("SELECT ClientId,forename,surname from t_clientdetails
[code].....
View 1 Replies
Oct 4, 2009
I get the below error Unable to cast object of type 'System.String' to type 'System.Data.DataTable'.This is the code I'm using
Dim str As String = String.Empty
If (Session("Brief") IsNot Nothing) Then
Dim dt As DataTable = Session("Brief")
If (dt.Rows.Count > 0) Then
[code]....
View 3 Replies
May 13, 2009
I am getting the following erro message: "Unable to cast object of type 'System.String' to type 'System.Predicate`1[System.String]'." on the line of code: If Not StrgFrag.Exists(wrd) Then I was expecting a True/False response and assumed it would work given that wrd is a String variables and StrgFrag in a List(of String). Do I need to reference the wrd variable differently? Dim StrgFrag As New List(Of String)
[Code]....
View 2 Replies
Oct 12, 2004
When I am trying to connect to database from VB.net, I am getting error.
This is my code.
Public g_Conn As new SqlClient.SqlConnection
With g_Conn
.ConnectionString = "user id=sa ;data source= CCTSRV8; " & _
"persist security info=True; " & _
"initial catalog=pubs ;password=mrwizard"
.Open()
End With
I am getting system.data.sqlclient.sqlclientpermission error.
View 11 Replies
Jan 29, 2010
I'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.
View 2 Replies
Nov 2, 2010
To 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]....
View 2 Replies
Feb 17, 2011
Value of type 'System.Func(Of String, String)' cannot be converted to 'System.Converter(Of String, String)
Why? They are both effectively a function pointer (or delegate?) to a function that accept a string and return a string.
View 6 Replies
Nov 1, 2011
I have a logout menu option in my MDI application. On log out I want to close all open forms. currently i am using following code snippet to achieve this;
For Each f As Form In My.Application.OpenForms
If f.Name = Me.Name Then
For Each child As Form In f.MdiChildren
[code]....
It is working perfect in my test environment, even though I expected For Each loop will throw "Collection was modified; enumeration operation may not execute" exception. since on each child form Close() calls, f.MdiChidren collection get modified, that surprised me a lot. Can anybody tell me why it's not throwing that exception?However it throws "Collection was modified; enumeration operation may not execute" in a client system.
View 1 Replies
Jul 29, 2011
I am getting following error whenever I want to use IIf function inside entity framework query.
LINQ to Entities does not recognize the method 'System.Object IIf(Boolean, System.Object, System.Object)' method, and this method cannot be translated into a store expression.
View 1 Replies
May 5, 2011
I am using VS 2008, Office 2007, and Win7 Home Premium on my system.I have a simple application which should be a breeze to build. All I am attempting to do is pull data from an Access database with four small tables into a data grid on a windows project. Should be simple, set up the data connection, choose a datagrid from the table in the data source view, drag it onto the page and done, right?I can't get it to work. It will all work fine until I attempt to run or debug the project. The data will not show up. The data grid does, but I get this error: A first chance exception of type 'System.InvalidOperationException' occurred in System.Data.dll
As I said, the project seems to build fine, but it will not pull the data. After the initial build I get the message that Windows will show this page in Compatibility View. Is it something with Win7 Home Premium, or a setting somewhere?
View 4 Replies
Mar 21, 2011
get out from the below loop
Shared Function GetIPAddress() As String
Dim sam As System.Net.IPAddress
Dim sam1 As String
[code]....
View 4 Replies
Feb 19, 2010
When I run my project I get "An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll"
Public Class frmViewReport
Dim objForm As New frmViewReport
Private Sub frmViewReport_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
objForm.ViewReport("C:a2.rtp", , "@parameter1=test�mter2=10")
[code]....
View 1 Replies
Nov 16, 2009
I have the following code running, the first time I change the selected index, everything runs smoothly. However, if I try to change the selected index again, nothing happens and the subcategories combobox values do not change.
Private Sub cboMainCategory_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboMainCategory.SelectedIndexChanged
'* make sure the combobox is fully loaded
[code]....
View 2 Replies
May 6, 2009
I keep getting an eroor this error says: An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in system.windows.forms.dll Additional information: Specified argument was out of the range of valid values.
Option Strict On
Public Class frmWeeklyReport
Inherits System.Windows.Forms.Form
[code].....
View 7 Replies
Feb 23, 2009
I want to cast a system.string to system.windows.forms.form
View 2 Replies
Oct 2, 2009
Im working on my first n-tier application. I am trying to serialize a structure and Im getting an error"Soap Serializer does not support serializing Generic Types : System.Nullable`1[System.DateTime]."Here is the structure that is being serialized
Namespace Structures
<Serializable()> _
Public Structure structAllergy
Public AllergyID As String
Public ProfileID As String
[code]....
The bold line is the line that is throwing the error.
View 1 Replies
Feb 6, 2010
I am working on a card game, and i get this werid error:
A first chance exception of type 'System.Reflection.TargetParameterCountException' occurred in System.Windows.Forms.dll
The code that is cousing this error is:
Private Delegate Sub ShowcardDelegate(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
Private Sub Showcard(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
If objtest.InvokeRequired Then
[code].....
View 10 Replies
