VS 2008 System.FormatException: Formatted Value Of The Cell Has A Wrong Type?
Apr 14, 2012
im working with datagridview here and I got thing that gets values from there but it gives sometimes this at some values...
System.FormatException: Formatted value of the cell has a wrong type.Im using scraper with regex to get those values. Is there way to fix those "wrong types"? Beacause everything it gets there, is important and I need those.
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Mar 15, 2010
I have a text string like this which I will need to parse: FriMar1200:00:00EST2010 And I used the following Date.ParseExact("FriMar1200:00:00EST2010", "dddMMMddHH:mm:sszzzyyyy", Nothing) And it is giving me a A first chance exception of type 'System.FormatException' occurred in mscorlib.dll error.
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Jun 1, 2011
I want to have one event triggered when I type something wrong in the cell in the specific column in the datagridview. What event should be? Or cell leave?
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Apr 20, 2010
I'm attempting to copy cells, one at a time, from an Excel 2003 (or 2007) spreadsheet to a Word 2003 (or 2007) table. I'd like the code to be version-agnostic, and so am using late binding. The formatting of the contents of the Excel cell, such as color, underline, strike-through, needs to be preserved. My approach is to use a Word doc as a template. It has a table at the top which I can copy to the end of the doc, add rows as needed, and fill in the word table cells with the data from the excel spreadsheet. Unfortunately, all the formatting disappears. All I get is the text itself.
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Oct 20, 2010
I have a bit of trouble right here, I am trying to get the data from the site and input them in the listview. Well, when my main app start to load through on debug, then it start to display a warning. The warning is: Unable to cast object of type 'System.String' to type 'System.IFormatProvider'.
[Code]...
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Apr 21, 2012
So I'm try to make a small online store for my uni coursework and I've stumbled upon this error i don't understand. First off here is the code for my order page.
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
[Code].....
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Apr 16, 2011
I enter to the cell in DGV with other format Ex; In column A cell is Integer but somebody put a string there , How to avoid or put the data EventError.
---------------------------
DataGridView Default Error Dialog
---------------------------
The following exception occurred in the DataGridView:
System.FormatException: Input string was not in a correct format. ---> System.FormatException: Input string was not in a correct format.
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
[code]....
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Jul 14, 2010
I doing some maintenance work on a vb .net web app and receive a system.formatexception input string was not in a correct format error after I update a row from a GridView control. The database update returns fine and I've stepped through the code and it never throws an error but when execution finishes and returns to the browser I get the following. I turned on the feature to break when an exception occurs but it never does break. Any suggestions? [Code]
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Feb 10, 2011
I am working in vb.net 08.When i will work on the recordset then it will give the error:"Arguments are of the wrong type, are out of acceptable range, or are in conflict with one another."
I am using the below
Imports System.Data
Imports System.Data.OleDb
Imports System.Windows.Forms
Imports System.Windows.Forms.DataGridViewColumnCollection
Imports System.IO
[Code]...
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Jun 27, 2011
VB 2008, DataGridView,DataGridView1_CellLeave(sender, New System.EventArgs)
"Unable to cast object of type 'System.EventArgs' to type 'System.Windows.Forms.DataGridViewCellEventArgs'."
What is the Correct String for "New System.EventsArgs"
Anybody there is to help me out.
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Feb 24, 2012
I am using a background worker and am attempting to use the following code. However I keep getting this error on i "Unable to cast object of type 'ObjectCollection' to type 'System.Array'."
Private Sub btnVerify_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnVerify.Click
myArray = listProxies.Items()
BackgroundWorker1.RunWorkerAsync()
End Sub
[code]....
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Feb 12, 2011
A first chance exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll It displays in my Immediate Window when i run my program, I'm using a text reader to read a number of XML files using background worker...most the time it stops so something is wrong but sometimes it works fine.
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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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Jun 25, 2010
My project worked a first and now its giving me a problem.The error
Quote:
Unable to cast object of type 'System.Windows.Forms.MouseEventArgs' to type 'System.ComponentModel.RunWorkerCompletedEventArgs'.
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May 16, 2011
[URL]The issue is as soon as I change the value of the text boxes it gives me an error and forces me to close the project.
The error is:Unable to cast object of type 'System.EventArgs' to type 'System.Windows.Forms.KeyPressEventArgs'.
However I'm supposed to clear the number of gallons used and the total charged when a change is made to the contents of the 2 text boxes on the form.
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Jun 6, 2011
I have an InvalidCastException Error in my program. The program is that i try to insert an employee record into a database table after getting the details from a form. I've used Money data type is SQL Server for salary and SqlTypes.SqlDecimal data type in employee template class. i've used a stored procedure to pass the values and i add the basic value by passing a parameter by the method
Dim prm8 As SqlParameter = com.Parameters.Add("@basic", SqlDbType.Money)
prm8.Direction = ParameterDirection.Input
prm8.Value = emp.Bsc
I've used the money datatype itself even in the stored procedure variable.I get the following error.
failed to convert parameter value from sql decimal to decimal
Even if i use
prm8.Value = Convert.ToDecimal(emp.Bsc)
I get an error Unable to cast object of type 'System.Data.SqlTypes.SqlDecimal' to type 'System.IConvertible'.
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Dec 24, 2009
Now I want to display picture in picturebox1.To do this I use this codes, but it does not display picture
on this line: Dim arrPicture() As Byte = CType(dt2.Rows(0)("img_path"), Byte())
it shows this message,
Unable to cast object of type 'System.DBNull' to type 'System.Byte[]'.[code]......
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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].....
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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]....
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Jun 12, 2011
Unable to cast object of type 'System.String' to type 'System.Windows.Forms.TextBox'.
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May 2, 2012
I'm creating a student evaluation form in a repeater that should submit the evaluation responses and update the SQL database, but I keep getting the error mentioned in the title. I'm coding in ASP.Net using VB.
Here's my code:
Student.aspx
<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="Server">
[Code].....
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Nov 15, 2011
I am getting a really bizarre error and it makes no sense at all.Basically I have a user entity which has a Password property. This property is of Type Binary, the server data type being Binary(512).I am reading this value in and converting it to a byte array. However whenever I run my code I am getting a completely unrelated error of Unable to cast object of type 'System.Guid' to type 'System.String'.This strikes me as very odd since I am not using a property or variable of type string or GUID anywhere in this procedure where it falls over.
The code is below:
Public Shared Function ValidateUser(ByVal username As String, ByVal password As String) As UserValidationMessage
Using db As New EntityMapDataContext
Dim u = From user In db.Users
Where user.Username = username
[code]....
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Jul 30, 2009
Code: Dim dom As New DOMDocument30 dom.async = False
dom.Load(serverAddress & "/App/filelist.jsp?type=content")
For i = 0 To dom.childNodes.item(1).childNodes.length - 1 downloadfile(dom.childNodes.item(i), mcount, currentpath) Next
The above code is activated upon clicking of a button. i have the server address declared. and using the domdoc to load the jsp file to generate the xml data. and using for loop, i call the download file function which accepts the following parameters
Code:Public Sub downloadfile(ByVal domdoc As Xml.XmlNode, ByVal totalcount As Integer, ByVal currentpath As String)
The totalcount and currentpath work fine, but when i pass in the dom.childNodes.item(i) , error pops up.
--------------------error message------------------------------------------Unable to cast COM object of type 'System.__ComObject' to class type 'System.Xml.XmlNode'. Instances of types that represent COM components cannot be cast to types that do not represent COM components; however they can be cast to interfaces as long as the underlying COM component supports QueryInterface calls for the IID of the interface.-------------------------------------------------------------------------------
[code]....
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Aug 7, 2011
When testing the followng code from Mastering VB2010, I get an Unable to cast object of type 'System.String' to type 'System.IFormatProvider' exception.In the Button1_Click event code Dim strmOut As New System.IO.StringWriter(SaveFileDialog1.FileName)the 'SaveFileDialog1. FileName' is underlined with a green squiggle and displays the following tool tip:Runtime errors might occur when converting 'String' to'System. Iformat Provider'.This is apparrently the problem but what does it mean and how do I fix it to get the code to work? 'Code being tested that runs the exception:Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click.[code]
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Jun 6, 2011
I have a page that get value from SQL. I'm having a problem when I initialize Label object with field having TEXT data type.[code]...
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Jun 2, 2009
I have the following piece of code that contains my message body in an email I'm trying to send via vb.net (through outlook) The code works, but .net is not recognizing the HTML formatting and is giving the error: "XML literals and XML axis properties are not available Please Add references to the System.Xml.dll, System.Xml.Linq.dll, and System.Core.dll assemblies". I try and do this by going to Project --> add referance, but they are not highlighted and I can't select them. Is there any way around this?
[Code]...
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Apr 24, 2012
There is a DataGridView, I find I can only edit controllers of cells by column.I have set one column as Combox, but I want to change one of cells in this column as Button, and add then add left-click and right click event on this button.
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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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Mar 15, 2010
I am using VB2008 in VS Prof and try to convert at Byte arry stored as a Image format in Sql2000 database.
Code:
Using acnLoc As New SqlConnection(CSLoc)
acnLoc.Open()
Dim G As SqlCommand = New SqlCommand("SELECT [SignatureData] FROM [MyTable] where [OID]=@OID", acnLoc)
G.Parameters.Add("@OID", SqlDbType.Int).Value =Cint(bxShipmentno.Text.Trim())
dim P= G.ExecuteScalar() 'returns a system arry
[Code]...
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Jun 6, 2012
[Code]...
Unable to cast object of type 'System.Net.FileWebRequest' to type 'System.Net.FtpWebRequest'.
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