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Arithmetic Operations
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Assign Expression
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Comparison Expression
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Conditional Expression
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Exception Expression
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Iteration Expression
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Jump Expression
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Logical Expression
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Member Expression
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Operators Expression
OrElse
You can build an expression tree using Expression.OrElse method which contains a conditional OR operation that evaluates the second operand only if the first operand evaluates to false. For example, you have the following code.
bool value = false || true;
Console.WriteLine(value);
Here is the code that is required to build the same functionality using expression tree.
Expression greaterThanExpr = Expression.OrElse(
Expression.Constant(false),
Expression.Constant(true)
);
Console.WriteLine(Expression.Lambda<Func<bool>>(greaterThanExpr).Compile()());