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dotnet-api
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C1.CalcEngine Assembly
- C1.CalcEngine
- C1.CalcEngine.ExcelEngine
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C1.CalcEngine.ExpressionEngine
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Classes
- AggregateFunctions
- BaseFunctionExpression
- BinaryExpression
- BindingExpression
- ConvertFunctions
- CustomFunctionDefinition
- CustomFunctionExpression
- DateTimeFunctions
- Expression
- ExpressionEngine
- FunctionDefinition
- FunctionExpression
- InExpression
- LogicalFunctions
- MathFunctions
- TextFunctions
- Token
- UnaryExpression
- VariableExpression
- Structs
- Enums
- Interfaces
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Classes
- C1.CalcEngine.VBAEngine
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C1.CalcEngine Assembly
C1.CalcEngine.ExpressionEngine.Expression
Expression Class
Base class that represents parsed expressions.
Inheritance
Namespace: C1.CalcEngine.ExpressionEngine
Assembly: C1.CalcEngine.dll
Syntax
public class Expression : IExpression, IComparable<IExpression>Remarks
For example:
Expression expr = engine.Parse(strExpression);
object val = expr.Evaluate();Constructors
| Name | Description |
|---|---|
| Expression(IExpressionEngine) | Initializes a new instance of the Expression class. |
| Expression(IExpressionEngine, Token) | Initializes a new instance of the Expression class. |
| Expression(IExpressionEngine, object) | Initializes a new instance of the Expression class. |
Properties
| Name | Description |
|---|---|
| Engine | Gets the IExpressionEngine that owns this IExpression. |
| Expressions | Gets the expressions used in this expression for evaluation. |
| Token | Gets a token of this expression. |
Methods
| Name | Description |
|---|---|
| CompareTo(IExpression) | Compares this instance with a specified IExpression object. |
| Evaluate() | Gets a result of expression. |
| GetBool(IExpression) | Casts the result of evaluating an IExpression to the Boolean type. |
| GetDateTime(IExpression) | Casts the result of evaluating an IExpression to the DateTime type. |
| GetDouble(IExpression) | Casts the result of evaluating an IExpression to the Double type. |
| GetString(IExpression) | Casts the result of evaluating an IExpression to the String type. |
| GetTimeSpan(IExpression) | Casts the result of evaluating an IExpression to the TimeSpan type. |
| IsNull(object) | Checks whether the specified value is null od DBNull. |
| Optimize() | Optimizes this expression. |