.net - Convert A List (Of KeyValuePair(Of String,Int32) Into A Dictionary(Of String, Int32) Using .ToDictionary?

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]....

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Failed To Convert Parameter Value From A String To A Int32

Apr 21, 2009

I 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]...

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Failed To Convert Parameter Value From A String To A Int32?

Apr 15, 2012

i 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].....

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Failed To Convert Parameter Value From String To Int32

Jan 28, 2011

I'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.

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Failed To Convert Parameter Value From A String To A Int32 Error

Sep 21, 2009

This 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]...

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VS 2008 - Failed To Convert Parameter Value From String To Int32

Jun 5, 2010

I 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!

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Code - Error Which Says Failed To Convert Parameter Value From A String To A Int32

Oct 2, 2009

I 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]...........................

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Error Converting From String To Int32?

Jan 27, 2010

I 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]....

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LINQ To SQL Can't Cast Int32 To String

Nov 5, 2010

I'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.

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Convert 2 X Int16 To Int32

Dec 13, 2009

I 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?

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VS 2008 : Error - Cannot Perform 'Like' Operation On System.Int32 And System.String"

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 & "*'"

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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].....

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Extend Primitive Types Such As System.String And System.Int32?

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.

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System.Int32 Cound Not Be Cast To The Type Of System.String?

May 27, 2011

Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.Sql Partial Class _Default

[code].....

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Cannot Perform '=' Operation On System.String And System.Int32

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]...

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Cannot Perform '=' Operation On System.String And System.Int32

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]....

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Error "Can Not Perform Like On Int32 And String"

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

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Use Linq ToDictionary To Return A Dictionary With Multiple Values In The Dictionary Items?

Jan 25, 2010

I want to group items from a linq query under a header, so that for each header I have a list of objects that match the header title. I assumed the solution would be to use ToDictionary to convert the objects, but this allows only one object per "group" (or dictionary key). I assumed I could create the dictionary of type (String, List Of()), but I can't figure out how to write it. As an example I have written a simplified version below.

[Code]...

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.net - Unable To Cast Object Of Type 'System.Int32' To Type 'System.String'?

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]...

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Unable To Cast Object Of Type 'System.Int32' To Type 'System.String'?

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]...

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.net - Check Keyvaluepair Againt Existing Values In List Of Keyvaluepair

Aug 22, 2010

How can I check a new KeyValuePair against an existing list of KeyValuePair ? I want to compare for a condition to include or exclude the item. I am using vb.net 3.5

it is a nested For loop and I am deleting a datarow on the result of the condition

args = (existing list of KeyValuePAir)
For Each datarow As DataRow In ds.Tables(0).Rows
Dim args2 As KeyValuePair(Of Integer, Integer) = New KeyValuePair(Of Integer, Integer)(datarow.Item("Integer1"), datarow.Item("Integer2"))

what I want to do here is see if args2 is already contained in args if not I would delete the datarow , but I also need to search the datarow multiple times

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.net - Filter Custom Dictionary With LINQ ToDictionary - "Unable To Cast Object Of Type 'System.Collections.Generic.Dictionary`2"

Jul 7, 2010

I have created a Dictionary class (MyDictionary for the example). I am currently trying to pass MyDictionary into a function, filter it into a new instance of MyDictionary and pass this new instance into another method. When I am attempting to create the second instance from the filtered first instance of MyDictionary via Lambda Expressions and the ToDictionary Method, I am getting the following error:

Unable to cast object of type 'System.Collections.Generic.Dictionary`2[System.Int32,System.String]' to type 'MyDictionary'. I have simplified the example and recreated it in LINQPad and am getting the same error.

Here's the simplified version of my code:

[Code]...

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Convert A String Of Key / Value Pairs To HashTable Or Dictionary Or?

Jun 19, 2010

In VB.NET, how can I convert the following string into some kind of key/value type such as a Hashtable, Dictionary, etc?"Name=Fred;Birthday=19-June-1906;ID=12345".I want to extract Birthday or ID without having to split the string into an array.I'd prefer not to split the string into an array in case the format of the string changes later.I don't have control over the string.What if someone switches the order around or adds another element?

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Convert List Of String To A String Separated By A Delimiter

Apr 15, 2009

Whats the best way to convert a list(of string) to a string with the values seperated by ,

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.net - VB Or Operator On Int32 And Int?

Oct 13, 2009

whats 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?

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Unable To Cast Object Of Type 'System.Collections.Generic.List`1[System.Int32]' To Type 'crmWebService.ArrayOfInt'?

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].....

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Difference Between Dictionary(Of String, String) And IDictionary(Of String, String)?

Jan 18, 2011

Can I do anything more or less with IDictionary? How do these two collections differ?

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Difference Between Int32 And Int64?

May 13, 2009

what 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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Value Was Either Too Large Or Too Small For An Int32

Jun 1, 2009

I 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.

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CheckErrorStatus(Int32) Compiling My Application

Aug 31, 2010

I'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

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