The exception that is thrown when a method call is invalid for the object's current state.
The exception that is thrown when a method call is invalid for the object's current state.
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Questions tagged [invalidoperationexception]
505 questions
0
votes
0 answers
Is this possible to retrieve the object which cause an InvalidOperationException
I have this piece of code :
try{
// other instructions
customer.Create(act.ID, act.AccountId.Value, act.AccountName, act.Referer);
// other instructions
}
catch (Exception ex)
{
Logging.Trace(ex);
}
In some cases, AccountId is null, and…
Etienne Arthur
- 680
- 1
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0
votes
1 answer
VB.NET ERROR system.invalidoperationexception
I have copied(text:- ctrl-c ctrl-v) a class from one of my previous programs that run without a glitch, into project. Very simple extracts data out of a text file.
On my machine it works like a charm, with Visual Studio 2010 installed. On someone…
CromeX
- 445
- 1
- 7
- 20
0
votes
0 answers
InvalidOperationException with ExecuteOracleScalar()
I need to select value from database:
string AttrIdent = "";
OracleCommand sel_attr = new OracleCommand(@"
select
IDENTIFIER_
from
TBL_A_CUSTOM_FORM_BASE_ATTR
where
TEMPLATEUUID in(
…
Akmal Salikhov
- 818
- 3
- 12
- 25
0
votes
3 answers
Autocomplete textbox in c#
I tried autocomplete text in c# and i tried this code,
try
{
textBox1.AutoCompleteMode = AutoCompleteMode.Suggest;
textBox1.AutoCompleteSource = AutoCompleteSource.CustomSource;
AutoCompleteStringCollection col = new…
mani
- 155
- 3
- 7
- 15
0
votes
2 answers
Entity Framework: Entity with composite key as PK/FK throws exception
On escalado, throws the exception. It throws with or wihtout Include.
static void Main(string[] args)
{
try
{
using (var context = new CKContext())
{
var servReprosWithIncludes…
user2575650
- 3
- 1
0
votes
2 answers
Sequence contains more than one element exception but in the database is just one
I built a query to find a user by the username. When I run the program I get:
InvalidOperationException: Sequence contains more than one element
I checked the test database, and there's with only 4 users and no double names. Where can the…
PX Roth
- 139
- 2
- 16
0
votes
0 answers
How do I detect which of my hundreds of thousands of objects is throwing an exception in the finalizer?
When our application exits normally, on a 64 bit platform there is no exception. On a 32bit platform we get this very unhelpful exception that shows as a system error on Windows XP:
InvalidOperationException: Handle is not initialized.
at…
Berin Loritsch
- 11,400
- 4
- 30
- 57
0
votes
3 answers
How to catch InvalidOperationException thrown by Deserialize method
I use following code to read data from XML
var temp = default(T);
var serializer = new XmlSerializer(typeof(T));
try
{
TextReader textReader = new StreamReader(fileName);
temp = (T)serializer.Deserialize(textReader);
}
catch…
h__
- 761
- 3
- 12
- 41
0
votes
2 answers
SubreportProcessing event handler cannot access my viewmodel due to being on a different thread
I have a WPF application that is utilizing the reporting tools included with Visual Studio 2010. I've had some other problems that I've solved by creating a graph of objects that are all marked as serializable, etc., as mentioned on various other…
Steve
- 6,334
- 4
- 39
- 67
0
votes
1 answer
VB.NET Trying to read a System.Collections.Specialized.StringCollection in My.Settings returns an InvalidOperationException
In my vb.net project i've created the following settings with the built-in settings manager from visual studio:
appVisible (Boolean)
saveFusedFiles (Boolean)
colors (System.Collections.Specialized.StringCollection)
separators…
CiniMod
- 43
- 6
0
votes
1 answer
Window content change: Specified element is already logical child
So I realize this is an often-asked about error, and I've read many results from google, but I still can't figure out how it applies to my situation.
The setup: I create a window to present views. I create an instance of the first view and set the…
Tevis
- 729
- 1
- 12
- 27
0
votes
2 answers
InvalidOperationException (sometimes) when getting keyboard state
I am trying to get the keyboard state in my XNA application with the following code:
this.OldKeyboard = this.NewKeyboard;
this.NewKeyboard = Keyboard.GetState();
this.OldMouse = this.NewMouse;
this.NewMouse = Mouse.GetState();
However, sometimes (I…
pascalhein
- 5,700
- 4
- 31
- 44
0
votes
0 answers
InvalidOperationException Thrown During Linq Query on Dictionary
In my application, there is a dictionary that stores objects of a custom type representing journal article authors. What I want to do is query this dictionary to extract a list of unique last name-first initial combinations. My query looks like…
user667118
- 67
- 10
0
votes
1 answer
'Sequence contains more than one element' (InvalidOperationException) thrown by external System.Core call when using Linq2Sql
firstly let me explain that I fully understand why this InvalidOperationException has been thrown and that I am simply looking for a way to avoid it from being thrown. There is a call to System.Linq.Enumerable.SingleOrDefault() that I can see in the…
Sheridan
- 68,826
- 24
- 143
- 183
0
votes
1 answer
Cross-thread operation not valid in parent control
I am using the following code to update a label in my class which extends UserControl:
private delegate void LabelChanger(bool signedIn);
public bool SignedIn
{
get { return _signedIn; }
set
{
_signedIn = value;
…
Jurgen Camilleri
- 3,559
- 20
- 45