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
2 answers
C# Login Form InvalidOperationException
I have 3 type of account: Administrator, Staff and Student. When I login the Administrator user the code is okey, then the problem occur when I try to login Student user and Staff user.…
Jeff
- 29
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0
votes
1 answer
SqlDataAdapter.Update(DataTable) gives InvalidOperationException
I have this piece of code which should be pretty straight forward.
private void btnSave_Click(object sender, EventArgs e)
{
try
{
using (SqlConnection sqlConn = new SqlConnection(connString))
{
…
Nicholas Magnussen
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0
votes
1 answer
Does Not Contain A Constructor That Takes 1 Arguments
I am a bit new to C# and I recently ran into an issue receiving an "Invalid Operation Exception" when my serial connection is lost during a serial communication operation. I am trying to catch the error via private void port_ErrorReceived (see…
Nevets
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0
votes
1 answer
Cross-thread operation not valid in static method
I have the following code in my WinForms C# app:-
private static void displayTime(object source, ElapsedEventArgs e)
{
timer++;
timeTxtBox.Text = parseTime(timer);
}
This is throwing an InvalidOperationException with the message, with the…
ReignOfComputer
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0
votes
0 answers
Change Culture language for a web reference
I'm programming a new MVC 4 application. This must publish some data from the backoffice of the company. For now I'm only working local so this well make it easier, I tought.
This is the situation: My computer has a dutch language pack. What means I…
keon109
- 1
0
votes
1 answer
Application crashes after Application_DispatcherUnhandledException handler called
On launching my WPF application, I try to see if a particular required exe is running or not. If that is not running, I throw InvalidOperationException like this
if (gaInterface.ConnectToGA() != 0)
throw new…
WAQ
- 2,556
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- 86
0
votes
1 answer
Adding Row Error
I'm having trouble adding a row to my datagridview for a redo button. I want to add the public string variable called DeletedFilmName to a new row in the first column (column is called "Films"), that's it. I've tried all sorts of things but can't…
user2100364
- 87
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0
votes
1 answer
Change WebRequest's Method property (C#)
Is there a better way for changing the Method property of WebRequests after uploading a file than mine?
My way looks like this:
WebRequest request = WebRequest.Create("ftp://.../...txt");
request.Credentials = new NetworkCredential("...",…
Cubi73
- 1,891
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0
votes
0 answers
Serial Port Disconnect with exception: system.invalidoperationexception in system.dll
My application is handling communication via serial ports. The problem of mine is that it has some chance that the the communication cable is unplugged from the computer.
I use USB to Serial cables, which means if they unplug from the computer the…
Daniel
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votes
1 answer
"This collection is read-only" exception when programmatically building project
I'm running some unit tests in parallel. Each unit test invokes some code that triggers an MSBuild deployment of an SSDT database project:
void Deploy(string projectPath, string publishProfilePath, ILogger logger)
{
var project =…
Sam
- 40,644
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0
votes
4 answers
MVC2: Can't convert String to ExtensionDataObject (without knowing I wanted to)
I'm getting the following InvalidOperationException:
The parameter conversion from type 'System.String' to type 'System.Runtime.Serialization.ExtensionDataObject' failed because no type converter can convert between these types.
In a Post action on…
Mike Pateras
- 14,715
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0
votes
1 answer
c# smartdevice - HTTPWEBREQUEST GET vs POST InvalidOperationException
In the code below, DoGet is working very stable. But DoPost throws an uncatcheable InvalidOperationException randomly. I am lost. Any pointers will be of immense help.
/*
Environment
-------------
* NET CF 2.0
* WM 5.0(USA Mobile…
cethie
- 49
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votes
1 answer
System.InvalidOperationException is scaring me
I recently reset my whole laptop. After the reset, I installed all of my programmes, including Visual Studio 2013 (I had 2012 on my last build). I then dumped my projects into the projects folder of 2013 and...I COULDN'T RUN MY PROJECT!!! I can view…
Josh-Mason
- 319
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0
votes
2 answers
The ConnectionString property has not been initialized error
I'm using an asp.net web application with a MySql DB, with the following connetcion string the web.config:
Matan Kadosh
- 187
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0
votes
1 answer
cudafy throws an exception while testing
I'm using VS 2010 on a Windows 7 64x.
I've created a static class Cuda with the following code
namespace Network
{
public static class Cuda
{
static GPGPU gpu= CudafyHost.GetDevice();
static CudafyHost host = new…
user2749312
- 1
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