Returns the specified field value of first member of collection which can be sorted and filtered. In case of failed lookup, a default value must be specified.
Syntax 1
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Returns the specified field value of first member of collection which can be sorted and filtered. In case of failed lookup, a default value must be specified. |
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GetFirstValue(collection, returnField, defaultReturnValue) |
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Arguments: |
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collection |
Collection - A collection. |
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returnField |
Field - The field with the value to return. |
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defaultReturnValue |
Any - Default value of type of return field. |
Syntax 2
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Returns the specified field value of first member of collection which can be sorted and filtered. In case of failed lookup, a default value must be specified. |
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GetFirstValue(collection, returnField, defaultReturnValue, orderby) |
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Arguments: |
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collection |
Collection - A collection. |
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returnField |
Field - The field with the value to return. |
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defaultReturnValue |
Any - Default value of type of return field. |
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orderby |
SortExpression - Field to order by. |
Syntax 3
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Returns the specified field value of first member of collection which can be sorted and filtered. In case of failed lookup, a default value must be specified. |
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GetFirstValue(collection, returnField, defaultReturnValue, orderby, filter) |
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Arguments: |
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collection |
Collection - A collection. |
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returnField |
Field - The field with the value to return. |
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defaultReturnValue |
Any - Default value of type of return field. |
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orderby |
SortExpression - Field to order by. |
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filter |
FilterExpression - A filter expression. |
Remarks
- Example: GetFirstValue(LineItems, Quantity, 1) returns 42.
- Example: GetFirstValue(LineItems, Quantity, 1, ProductID, UnitPrice > 10) returns 42.
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