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Cannot convert from 'System.Array' to 'int[*]'
The Next CEO of Stack OverflowWhat does int[*] mean in C# under Visual studio 2017Cast int to enum in C#Create ArrayList from arrayPHP: Delete an element from an arrayHow do I parse a string to a float or int in Python?Get int value from enum in C#How to convert UTF-8 byte[] to string?How do I generate a random int number?How do I convert a String to an int in Java?Easiest way to convert int to string in C++How do I remove a particular element from an array in JavaScript?
In the application I was asked to develop, I must interface with a dll over which I have no control.
From the dll, I'm calling:
NAMESPACE.myFunction(string Name, int[*] Coordinates)
What is this int[*] type? Answer was easy found here: it is a non-0 based array. This question briefly mentions some LabView compiled dll, which is very similar to my present case.
I was able to determine via researching that only an Array can be used to to have a int32[*] type. An easy way to prove it is to run this code:
Array AAA = Array.CreateInstance(typeof(int), 4, 0);
Array AAA2 = Array.CreateInstance(typeof(int), 4, 1);
Array BBB = Array.CreateInstance(typeof(int), 4);
Array CCC = Array.CreateInstance(typeof(int), new int[] 4 , new int[] 0 );
Array DDD = Array.CreateInstance(typeof(int), new int[] 4 );
int[] arr1 = (int[])Array.CreateInstance(typeof(int), 4);
int[] arr2 = (int[])Array.CreateInstance(typeof(int), new int[] 4 , new int[] 0 );
Array arr3 = Array.CreateInstance(typeof(int), new int[] 4 , new int[] 1 );
Console.WriteLine("AAA.type: " + AAA.GetType()); \ System.Int32[,]
Console.WriteLine("AAA2.type: " + AAA2.GetType()); \ System.Int32[,]
Console.WriteLine("BBB.type: " + BBB.GetType()); \ System.Int32[]
Console.WriteLine("CCC.type: " + CCC.GetType()); \ System.Int32[]
Console.WriteLine("DDD.type: " + DDD.GetType()); \ System.Int32[]
Console.WriteLine("---");
Console.WriteLine("arr1.type: " + arr1.GetType()); \ System.Int32[]
Console.WriteLine("arr2.type: " + arr2.GetType()); \ System.Int32[]
Console.WriteLine("arr3.type: " + arr3.GetType()); \ System.Int32[*]
The question I can't find an answer to is: how do I pass an Array type to my method call, without the conversion type error? Error is thrown by this call:
NAMESPACE.myFunction("", arr3)
^
Cannot convert from 'System.Array' to 'int[*]'
c# arrays type-conversion
asked Mar 7 at 15:35
Daemon PainterDaemon Painter
294112
add a comment |
In the application I was asked to develop, I must interface with a dll over which I have no control.
From the dll, I'm calling:
NAMESPACE.myFunction(string Name, int[*] Coordinates)
What is this int[*] type? Answer was easy found here: it is a non-0 based array. This question briefly mentions some LabView compiled dll, which is very similar to my present case.
I was able to determine via researching that only an Array can be used to to have a int32[*] type. An easy way to prove it is to run this code:
Array AAA = Array.CreateInstance(typeof(int), 4, 0);
Array AAA2 = Array.CreateInstance(typeof(int), 4, 1);
Array BBB = Array.CreateInstance(typeof(int), 4);
Array CCC = Array.CreateInstance(typeof(int), new int[] 4 , new int[] 0 );
Array DDD = Array.CreateInstance(typeof(int), new int[] 4 );
int[] arr1 = (int[])Array.CreateInstance(typeof(int), 4);
int[] arr2 = (int[])Array.CreateInstance(typeof(int), new int[] 4 , new int[] 0 );
Array arr3 = Array.CreateInstance(typeof(int), new int[] 4 , new int[] 1 );
Console.WriteLine("AAA.type: " + AAA.GetType()); \ System.Int32[,]
Console.WriteLine("AAA2.type: " + AAA2.GetType()); \ System.Int32[,]
Console.WriteLine("BBB.type: " + BBB.GetType()); \ System.Int32[]
Console.WriteLine("CCC.type: " + CCC.GetType()); \ System.Int32[]
Console.WriteLine("DDD.type: " + DDD.GetType()); \ System.Int32[]
Console.WriteLine("---");
Console.WriteLine("arr1.type: " + arr1.GetType()); \ System.Int32[]
Console.WriteLine("arr2.type: " + arr2.GetType()); \ System.Int32[]
Console.WriteLine("arr3.type: " + arr3.GetType()); \ System.Int32[*]
The question I can't find an answer to is: how do I pass an Array type to my method call, without the conversion type error? Error is thrown by this call:
NAMESPACE.myFunction("", arr3)
^
Cannot convert from 'System.Array' to 'int[*]'
c# arrays type-conversion
asked Mar 7 at 15:35
Daemon PainterDaemon Painter
294112
1
exposing an API with a non-vector typed array is ... just asking for pain. That isn't a thing that you can cleanly express in C#; what isNAMESPACE.myFunction? is this a third party thing? can you change the signature, or request it be changed?
– Marc Gravell♦
Mar 7 at 15:47
1
note: if the API is instance based, not static based, you might be able to cheat by usingdynamic...
– Marc Gravell♦
Mar 7 at 15:48
1
You can't keep the C# compiler happy. Use ildasm.exe to decompile the assembly, edit the IL and change the argument to Array, put it back together with ilasm.exe. If this is likely to change soon then you do want to contact the author to get this right.
– Hans Passant
Mar 7 at 15:54
@MarcGravell, it is a third party thing, called by National Instruments TestStand passing anArray of Numbers (Int32). Unfortunately, we'd like to move away from TestStand, so I'm trying to call it from a c# app, instead. Under all points of view, I don't see it changing soon, I can't get hold of the developer/maintainer, so it is sealed third party for me.
– Daemon Painter
Mar 7 at 16:04
@MarcGravell, thedynamicsolution is reporting this, instead:Unable to cast object of type 'System.Int32[*]' to type 'System.Int32[]'.
– Daemon Painter
Mar 7 at 16:20
add a comment |
In the application I was asked to develop, I must interface with a dll over which I have no control.
From the dll, I'm calling:
NAMESPACE.myFunction(string Name, int[*] Coordinates)
What is this int[*] type? Answer was easy found here: it is a non-0 based array. This question briefly mentions some LabView compiled dll, which is very similar to my present case.
I was able to determine via researching that only an Array can be used to to have a int32[*] type. An easy way to prove it is to run this code:
Array AAA = Array.CreateInstance(typeof(int), 4, 0);
Array AAA2 = Array.CreateInstance(typeof(int), 4, 1);
Array BBB = Array.CreateInstance(typeof(int), 4);
Array CCC = Array.CreateInstance(typeof(int), new int[] 4 , new int[] 0 );
Array DDD = Array.CreateInstance(typeof(int), new int[] 4 );
int[] arr1 = (int[])Array.CreateInstance(typeof(int), 4);
int[] arr2 = (int[])Array.CreateInstance(typeof(int), new int[] 4 , new int[] 0 );
Array arr3 = Array.CreateInstance(typeof(int), new int[] 4 , new int[] 1 );
Console.WriteLine("AAA.type: " + AAA.GetType()); \ System.Int32[,]
Console.WriteLine("AAA2.type: " + AAA2.GetType()); \ System.Int32[,]
Console.WriteLine("BBB.type: " + BBB.GetType()); \ System.Int32[]
Console.WriteLine("CCC.type: " + CCC.GetType()); \ System.Int32[]
Console.WriteLine("DDD.type: " + DDD.GetType()); \ System.Int32[]
Console.WriteLine("---");
Console.WriteLine("arr1.type: " + arr1.GetType()); \ System.Int32[]
Console.WriteLine("arr2.type: " + arr2.GetType()); \ System.Int32[]
Console.WriteLine("arr3.type: " + arr3.GetType()); \ System.Int32[*]
The question I can't find an answer to is: how do I pass an Array type to my method call, without the conversion type error? Error is thrown by this call:
NAMESPACE.myFunction("", arr3)
^
Cannot convert from 'System.Array' to 'int[*]'
c# arrays type-conversion
asked Mar 7 at 15:35
Daemon PainterDaemon Painter
294112
In the application I was asked to develop, I must interface with a dll over which I have no control.
From the dll, I'm calling:
NAMESPACE.myFunction(string Name, int[*] Coordinates)
What is this int[*] type? Answer was easy found here: it is a non-0 based array. This question briefly mentions some LabView compiled dll, which is very similar to my present case.
I was able to determine via researching that only an Array can be used to to have a int32[*] type. An easy way to prove it is to run this code:
Array AAA = Array.CreateInstance(typeof(int), 4, 0);
Array AAA2 = Array.CreateInstance(typeof(int), 4, 1);
Array BBB = Array.CreateInstance(typeof(int), 4);
Array CCC = Array.CreateInstance(typeof(int), new int[] 4 , new int[] 0 );
Array DDD = Array.CreateInstance(typeof(int), new int[] 4 );
int[] arr1 = (int[])Array.CreateInstance(typeof(int), 4);
int[] arr2 = (int[])Array.CreateInstance(typeof(int), new int[] 4 , new int[] 0 );
Array arr3 = Array.CreateInstance(typeof(int), new int[] 4 , new int[] 1 );
Console.WriteLine("AAA.type: " + AAA.GetType()); \ System.Int32[,]
Console.WriteLine("AAA2.type: " + AAA2.GetType()); \ System.Int32[,]
Console.WriteLine("BBB.type: " + BBB.GetType()); \ System.Int32[]
Console.WriteLine("CCC.type: " + CCC.GetType()); \ System.Int32[]
Console.WriteLine("DDD.type: " + DDD.GetType()); \ System.Int32[]
Console.WriteLine("---");
Console.WriteLine("arr1.type: " + arr1.GetType()); \ System.Int32[]
Console.WriteLine("arr2.type: " + arr2.GetType()); \ System.Int32[]
Console.WriteLine("arr3.type: " + arr3.GetType()); \ System.Int32[*]
The question I can't find an answer to is: how do I pass an Array type to my method call, without the conversion type error? Error is thrown by this call:
NAMESPACE.myFunction("", arr3)
^
Cannot convert from 'System.Array' to 'int[*]'
c# arrays type-conversion
c# arrays type-conversion
asked Mar 7 at 15:35
Daemon PainterDaemon Painter
294112
asked Mar 7 at 15:35
Daemon PainterDaemon Painter
294112
asked Mar 7 at 15:35
Daemon PainterDaemon Painter
294112
asked Mar 7 at 15:35
Daemon PainterDaemon Painter
294112
asked Mar 7 at 15:35
Daemon PainterDaemon Painter
294112
294112
1
exposing an API with a non-vector typed array is ... just asking for pain. That isn't a thing that you can cleanly express in C#; what isNAMESPACE.myFunction? is this a third party thing? can you change the signature, or request it be changed?
– Marc Gravell♦
Mar 7 at 15:47
1
note: if the API is instance based, not static based, you might be able to cheat by usingdynamic...
– Marc Gravell♦
Mar 7 at 15:48
1
You can't keep the C# compiler happy. Use ildasm.exe to decompile the assembly, edit the IL and change the argument to Array, put it back together with ilasm.exe. If this is likely to change soon then you do want to contact the author to get this right.
– Hans Passant
Mar 7 at 15:54
@MarcGravell, it is a third party thing, called by National Instruments TestStand passing anArray of Numbers (Int32). Unfortunately, we'd like to move away from TestStand, so I'm trying to call it from a c# app, instead. Under all points of view, I don't see it changing soon, I can't get hold of the developer/maintainer, so it is sealed third party for me.
– Daemon Painter
Mar 7 at 16:04
@MarcGravell, thedynamicsolution is reporting this, instead:Unable to cast object of type 'System.Int32[*]' to type 'System.Int32[]'.
– Daemon Painter
Mar 7 at 16:20
add a comment |
1
exposing an API with a non-vector typed array is ... just asking for pain. That isn't a thing that you can cleanly express in C#; what isNAMESPACE.myFunction? is this a third party thing? can you change the signature, or request it be changed?
– Marc Gravell♦
Mar 7 at 15:47
1
note: if the API is instance based, not static based, you might be able to cheat by usingdynamic...
– Marc Gravell♦
Mar 7 at 15:48
1
You can't keep the C# compiler happy. Use ildasm.exe to decompile the assembly, edit the IL and change the argument to Array, put it back together with ilasm.exe. If this is likely to change soon then you do want to contact the author to get this right.
– Hans Passant
Mar 7 at 15:54
@MarcGravell, it is a third party thing, called by National Instruments TestStand passing anArray of Numbers (Int32). Unfortunately, we'd like to move away from TestStand, so I'm trying to call it from a c# app, instead. Under all points of view, I don't see it changing soon, I can't get hold of the developer/maintainer, so it is sealed third party for me.
– Daemon Painter
Mar 7 at 16:04
@MarcGravell, thedynamicsolution is reporting this, instead:Unable to cast object of type 'System.Int32[*]' to type 'System.Int32[]'.
– Daemon Painter
Mar 7 at 16:20
1
1
exposing an API with a non-vector typed array is ... just asking for pain. That isn't a thing that you can cleanly express in C#; what is
NAMESPACE.myFunction? is this a third party thing? can you change the signature, or request it be changed?– Marc Gravell♦
Mar 7 at 15:47
exposing an API with a non-vector typed array is ... just asking for pain. That isn't a thing that you can cleanly express in C#; what is
NAMESPACE.myFunction? is this a third party thing? can you change the signature, or request it be changed?– Marc Gravell♦
Mar 7 at 15:47
1
1
note: if the API is instance based, not static based, you might be able to cheat by using
dynamic...– Marc Gravell♦
Mar 7 at 15:48
note: if the API is instance based, not static based, you might be able to cheat by using
dynamic...– Marc Gravell♦
Mar 7 at 15:48
1
1
You can't keep the C# compiler happy. Use ildasm.exe to decompile the assembly, edit the IL and change the argument to Array, put it back together with ilasm.exe. If this is likely to change soon then you do want to contact the author to get this right.
– Hans Passant
Mar 7 at 15:54
You can't keep the C# compiler happy. Use ildasm.exe to decompile the assembly, edit the IL and change the argument to Array, put it back together with ilasm.exe. If this is likely to change soon then you do want to contact the author to get this right.
– Hans Passant
Mar 7 at 15:54
@MarcGravell, it is a third party thing, called by National Instruments TestStand passing an
Array of Numbers (Int32). Unfortunately, we'd like to move away from TestStand, so I'm trying to call it from a c# app, instead. Under all points of view, I don't see it changing soon, I can't get hold of the developer/maintainer, so it is sealed third party for me.– Daemon Painter
Mar 7 at 16:04
@MarcGravell, it is a third party thing, called by National Instruments TestStand passing an
Array of Numbers (Int32). Unfortunately, we'd like to move away from TestStand, so I'm trying to call it from a c# app, instead. Under all points of view, I don't see it changing soon, I can't get hold of the developer/maintainer, so it is sealed third party for me.– Daemon Painter
Mar 7 at 16:04
@MarcGravell, the
dynamic solution is reporting this, instead: Unable to cast object of type 'System.Int32[*]' to type 'System.Int32[]'.– Daemon Painter
Mar 7 at 16:20
@MarcGravell, the
dynamic solution is reporting this, instead: Unable to cast object of type 'System.Int32[*]' to type 'System.Int32[]'.– Daemon Painter
Mar 7 at 16:20
add a comment |
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1
exposing an API with a non-vector typed array is ... just asking for pain. That isn't a thing that you can cleanly express in C#; what is
NAMESPACE.myFunction? is this a third party thing? can you change the signature, or request it be changed?– Marc Gravell♦
Mar 7 at 15:47
1
note: if the API is instance based, not static based, you might be able to cheat by using
dynamic...– Marc Gravell♦
Mar 7 at 15:48
1
You can't keep the C# compiler happy. Use ildasm.exe to decompile the assembly, edit the IL and change the argument to Array, put it back together with ilasm.exe. If this is likely to change soon then you do want to contact the author to get this right.
– Hans Passant
Mar 7 at 15:54
@MarcGravell, it is a third party thing, called by National Instruments TestStand passing an
Array of Numbers (Int32). Unfortunately, we'd like to move away from TestStand, so I'm trying to call it from a c# app, instead. Under all points of view, I don't see it changing soon, I can't get hold of the developer/maintainer, so it is sealed third party for me.– Daemon Painter
Mar 7 at 16:04
@MarcGravell, the
dynamicsolution is reporting this, instead:Unable to cast object of type 'System.Int32[*]' to type 'System.Int32[]'.– Daemon Painter
Mar 7 at 16:20