Problem in Assigning one object to other object

Smart Lucky

Hi
i am trying to assign one object to other object but it is assigning and showing me this error can any one help me...?

Error1Cannot implicitly convert type 'DMLOperationOnArray.Test2' to 'DMLOperationOnArray.Test'D:\c# Prectice\DMLOperationOnArray\DMLOperationOnArray\Program.cs7017DMLOperationOnArray

using System;

namespace DMLOperationOnArray

{

class Program

{

static void Main(string[] args)

{

Test t = new Test();

t.Testmethod();

Console.Write("\n\n\n");

Test2 t2 = new Test2();

t2.Testmethod2();

t = t2; // error occured here

Console.ReadKey();

}

class Test

{

public void Testmethod()

{

int value = 20;

Console.WriteLine(value);

}

class Test2

{

public void Testmethod2()

{

int value = 40;

Console.WriteLine(value);

}

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes15y ago
Accepted answer
Mamta,

A cast won't work either as there is no relationship between Test and Test2.

However, if Test2 were to inherit from Test, then it would work as it stands:

using System;

namespace DMLOperationOnArray
{
class Program
{
static void Main(string[] args)
{
Test t = new Test();
t.Testmethod();
Console.Write("\n\n\n");
Test2 t2 = new Test2();
t2.Testmethod2();
t = t2; // error no longer occurs here
Console.ReadKey();
}
}
class Test
{

public void Testmethod()
{
int value = 20;
Console.WriteLine(value);
}
}

class Test2 : Test // now inherits from Test
{
public void Testmethod2()
{
int value = 40;
Console.WriteLine(value);
}
}

}
0
Mamta M15y ago
Vulpes,

You are right. I had assumed they were related, when in fact they weren't. Thanks for pointing that out.

-Mamta
0
Mamta M15y ago
Both are objects of two different types. Test is one type and Test2 is another type. You cannot directly assign objects of Test to Test2. You need to use a cast as follows:

t= (Test) t2;
0
Ish Bandhu15y ago
class Program
{
static void Main(string[] args)
{
xyz t = new Test();
t.Testmethod();

Console.Write("\n\n\n");

xyz t2 = new Test2();

t2.Testmethod();
t = t2; // error occured here
Console.ReadKey();
}
}
//create a base class with virtual method
class xyz {
public virtual void Testmethod()
{
int value = 20; Console.WriteLine(value);
}
}
//inherit base class in both class
class Test:xyz
{
public override void Testmethod()
{
int value = 20; Console.WriteLine(value);
}
}
class Test2:xyz
{
public override void Testmethod()
{
int value = 40; Console.WriteLine(value);
}
}
0