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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.LogicalFunctions.IsNull
IsNull Method
IsNull(List<IExpression>)
Returns True if the specified Value is NULL.
Declaration
public static object IsNull(List<IExpression> source)Parameters
| Type | Name | Description |
|---|---|---|
| List<IExpression> | source |
Returns
| Type | Description |
|---|---|
| object |