Tag Archives: OOP

Make a random tree of generic TreeNode objects in C#

Posted on May 14, 2020 by RodStephens

The example Handle generic TreeNode mouse events in C# explains how to build a tree where each node is represent by a TreeNode object. Each TreeNode contains its own object that determines how the node is drawn. This example the … Continue reading →

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Determine whether two lists contain the same sequences of objects in different orders in C#

Posted on April 24, 2018 by Rod Stephens

The SequenceEqual method determines whether two IEnumerable sequences contain the same objects in the same order. There is a simple way to determine whether the lists contain the same objects in different orders: sort the objects and then call SequenceEqual. … Continue reading →

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Determine whether two lists contain the same sequences of objects in C#

Posted on April 23, 2018 by Rod Stephens

The IEnumerable interface provides a SequenceEqual method that determines whether two IEnumerable sequences contain the same objects. Normally, it uses reference equality so it considers two objects equal only if they refer to the same instance. However, if the objects … Continue reading →

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Draw a scrolling family tree in C#

Posted on January 17, 2017 by RodStephens

The example Draw a family tree in C# shows how to draw a family tree. Unfortunately if the tree is too big, you can’t make the form big enough to display it all. One solution would be to use smaller … Continue reading →

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Clone lists and arrays of objects in C#

Posted on September 28, 2016 by Rod Stephens

This is the last post I’ll write about clones, at least for a while. Some collection classes can already make clones. For example, an array can clone itself, although the result is always a shallow clone. This example shows how … Continue reading →

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Clone serializable objects in C#

Posted on September 26, 2016 by Rod Stephens

If a class is serializable, then you can create a deep clone of an object from that class by serializing it and the deserializing it. This example uses the following code to define a generic extension method that clones objects … Continue reading →

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Use MemberwiseClone the ICloneable interface in C#

Posted on September 20, 2016 by Rod Stephens

The example Clone objects in C# explains how to give a class a Clone method that makes copies of its objects. This example makes two changes: it implements the ICloneable interface and it uses MemberwiseClone to simplify the cloning code. … Continue reading →

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Clone objects in C#

Posted on September 19, 2016 by Rod Stephens

A clone of an object is a copy of that object. There are two kinds of clones: shallow and deep. A shallow clone shares all of the same values as the original object, even if some of those values are … Continue reading →

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Provide multiple inheritance in C#

Posted on May 12, 2016 by Rod Stephens

Sometimes you might want a class to inherit from more than one parent class. For example, you might define a Vehicle class that has vehicle properties such as MaxSpeed, and a Domicile class with house-like properties such as SquareFeet. You … Continue reading →

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Define and implement an interface in C#

Posted on May 11, 2016 by Rod Stephens

(This example doesn’t do anything. It just shows how to define an interface.) An interface defines properties, methods, and events for a class but doesn’t provide an implementation for them. A class that implements the interface must provide code for … Continue reading →

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