Hello,
a few users of one of our customers currently experience the following issue when our program calls Infragistics.Win.UltraWinGrid.UltraGridLayout.LoadFromXml(Stream stream, PropertyCategories propertyCategories).
The stream is a memory stream and propertyCategories is set to PropertyCategories.All.
This results in a System.Reflection.TargetInvocationException.
The strange thing about this is, that no matter the source of the XML (in this case it is actually created in memory and loaded from anywhere) this fails. I have compared the XML with the XML on a machine where it worked and did not find any significant differences.
This issue on comes up on very few specific computers and not anywhere else.
We have checked the GAC and the folder our software has been deployed in and there are no anomalies either.
The users culture is US English.
Has anybody else experienced a similar error?
Here is the call stack
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> 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)
at Infragistics.Win.UltraWinGrid.SortedColumnsCollection..ctor(SerializationInfo info, StreamingContext context)
--- End of inner exception stack trace ---
at System.RuntimeMethodHandle._SerializationInvoke(Object target, SignatureStruct& declaringTypeSig, SerializationInfo info, StreamingContext context)
at System.RuntimeMethodHandle.SerializationInvoke(Object target, SignatureStruct declaringTypeSig, SerializationInfo info, StreamingContext context)
at System.Reflection.RuntimeConstructorInfo.SerializationInvoke(Object target, SerializationInfo info, StreamingContext context)
at System.Runtime.Serialization.ObjectManager.CompleteISerializableObject(Object obj, SerializationInfo info, StreamingContext context)
at System.Runtime.Serialization.ObjectManager.FixupSpecialObject(ObjectHolder holder)
at System.Runtime.Serialization.ObjectManager.DoFixups()
at System.Runtime.Serialization.Formatters.Soap.ObjectReader.Deserialize(HeaderHandler handler, ISerParser serParser)
at System.Runtime.Serialization.Formatters.Soap.SoapFormatter.Deserialize(Stream serializationStream, HeaderHandler handler)
at System.Runtime.Serialization.Formatters.Soap.SoapFormatter.Deserialize(Stream serializationStream)
at Infragistics.Win.UltraWinGrid.UltraGridLayout.LoadHelper(Stream stream, PropertyCategories propertyCategories, IFormatter formatter)
at Infragistics.Win.UltraWinGrid.UltraGridLayout.LoadFromXml(Stream stream, PropertyCategories propertyCategories)
Best regards
Sebastian PeschtiesLogimatic Germany GmbH
That exception can sometimes occur when you have two different assemblies interacting with each other and one of them has changed the signature of a method so that the first one calls a method which no longer exists. Is it possible that the stream is being passed from another process or another thread?
Could it be that the machines in question are using an older version of the Infragistics components than the machine you developed on?
wrong assemblies was what I expected to, but we got a list of the GAC and a list of the files in the folder our application was deployed to via Click Once. Both seemed to be ok.In order to get more detailed information we will write the loaded assemblies to the a log file and check those. Maybe it is more conclusive.
Multiple threads as a source can be excluded. We are not using multithreading where this error occurs and it currently only effects three specific computers. Reproducable, whenever a layout is assigned.
Hi ,
I am facing the same issue in v10.2.
can anyone help me with how to solve this issue ?
Here is the stack trace of exception i am getting :
A first chance exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll
Inner exception: Object reference not set to an instance of an object.
at Infragistics.Win.UltraWinGrid.UltraGridLayout.LoadFromXml(Stream stream)
Checked GAC For multiple assemblies not found any.
Hi,
Can you reproduce this issue in a small sample project?
Was this code working at some point and now it's not? Or has it never worked?
Are you saving anything else to this stream beside the grid layout? Can you post the code you are using to save the layout to the stream?
What are the data types of the columns in your grid?
Hi Mike,
The code i am using is working in one grid and is not working for one of the other grid in my project.
Is there any property or setting of column/bands or datatype of column which may result in this exception ?
Datatype of column include all Int64,Int32,Double,DateTime,String
I am just saving the layout to this stream and nothing else.Below is the code I am using to Load and Save the Layout.
I am saving Layout to an XML and the saving it in database
myGrid.DisplayLayout.SaveAsXml(fileName, PropertyCategories.All);
Then at load i am deserializing it to stream
string
App.SystemSerializer.DeserializeDefaults(sessionType, out
defXml);
MemoryStream strLayout = new MemoryStream(byteArray);
if (strLayout != null)
{
uGrdResults.DisplayLayout.LoadFromXml(strLayout);
strLayout.Close();
}
Please let me know if anything wrong is there.
I will work on a project to replicate this issue.
Thanks for reply any help is much appreciated.
Okay, that solves the mystery - you are using an Encoder. I discussed this in some detail (and provided sample code to do this correctly) here:
Convert String to Stream correctly for DisplayLayout.Load() - Infragistics Community
Thanks for your help.
For now we are looking for some other options to restore the layout.
Thanks
Rooma
Well, if you can post a sample that demonstrates that, I would be happy to take a look at it. But without a sample, I'm afraid I have no idea why it's not working. Maybe your database is somehow altering the text for some reason.
Yes, I replaced my code with code given by you.
And still getting same exception.
Are you getting the same exception?
Are you sure you are not using the encoder any more?
Thanks for reply.
I tried using streamReader/Writer but it still does'n work. :(