| QueryColumnListBase Properties |
The QueryColumnListBase type exposes the following members.
| Name | Description | |
|---|---|---|
| AnyColumnsDefined |
Returns true if any columns are defined within this column list
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| Columns | There are three possible outputs. Firstly NO_COLUMNS, there will be no column in query. Secondly list of columns represented as string, without occurrence of NO_COLUMNS. Finally Empty, that resolves to * in query. | |
| ContainsAllColumnsSelector |
Indicates whether list contains all columns selector
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| Count |
Returns the number of defined columns
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| IsSingleColumn |
Returns true if the columns represent a single column
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| Item |
Returns column on specific index
| |
| NoColumns |
Indicates whether list represents an empty list with no columns,
no matter already existing columns or columns added after
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| Parent |
Parent query for the column list
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| PresentColumns |
Gets the hash set of present columns for duplicity detection
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| ReturnsAllColumns |
Returns true if the columns contain all columns specification or columns do not contain definition of any columns
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