The IDataQuery TQuery type exposes the following members.
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Methods
Name | Description | |
---|---|---|
AddColumn(String) |
Adds the additional column to the query
(Inherited from IDataQuerySettings TQuery .) | |
AddColumn(IQueryColumn) |
Adds the additional column to the query
(Inherited from IDataQuerySettings TQuery .) | |
AddColumns(IEnumerable String ) |
Adds the additional columns to the query
(Inherited from IDataQuerySettings TQuery .) | |
AddColumns( IQueryColumn ) |
Adds the additional columns to the query
(Inherited from IDataQuerySettings TQuery .) | |
And |
Changes the where operator to AND for subsequent where conditions. Use in combination of methods Where...
(Inherited from IWhereCondition TParent .) | |
And(IWhereCondition) |
Adds the given where condition with the AND operator
(Inherited from IWhereCondition TParent .) | |
And(Action WhereCondition ) |
Adds the given where condition with the AND operator. Creates a new where condition object and runs the setup actions on it.
(Inherited from IWhereCondition TParent .) | |
ApplyParametersTo |
Applies this where condition to the target object
(Inherited from IQueryParameters.) | |
ApplySettings(AbstractQueryObject) |
Applies the given settings to the query
(Inherited from IDataQuery.) | |
ApplySettings(Action DataQuerySettings ) |
Applies the given settings to the query
(Inherited from IDataQuery.) | |
As T |
Changes the type of the query to another type
(Inherited from IDataQuery.) | |
AsIDQuery |
Creates an ID query from the given query
(Inherited from IDataQuery.) | |
AsMaterializedList |
Makes a materialized list from the given query
(Inherited from IDataQuery.) | |
AsNested TResult |
Creates a nested query from the given query
(Inherited from IDataQuery.) | |
AsSingleColumn |
Creates a single column query from the given query
(Inherited from IDataQuery.) | |
AsSubQuery |
Modifies the query to be able to be used as a sub-query, e.g. for usage in WHERE A IN ([query]). Ensures single column result, and removes order by from the result.
(Inherited from IDataQuery.) | |
AsValue |
Gets a query expression representing this object as a value
(Inherited from IQueryObjectWithValue.) | |
BinaryData |
Sets whether the binary data should be included to the result
| |
CloneObject |
Creates the clone of the object.
(Inherited from IQueryObject.) | |
Column(String) |
Sets the column to select
(Inherited from IDataQuerySettings TQuery .) | |
Column(IQueryColumn) |
Sets the column to select
(Inherited from IDataQuerySettings TQuery .) | |
Columns(IEnumerable String ) |
Sets the columns to select
(Inherited from IDataQuerySettings TQuery .) | |
Columns( String ) |
Sets the columns to select
(Inherited from IDataQuerySettings TQuery .) | |
Dispose | Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources. (Inherited from IDisposable.) | |
Distinct |
Sets the query to use distinct selection over the given columns
(Inherited from IDataQuerySettings TQuery .) | |
EnsureParameters |
Ensures data parameters for the given query
(Inherited from IQueryParameters.) | |
Except |
Gets the intersection of this data query with another query
| |
Execute |
Executes the current query and returns it's results as a DataSet
(Inherited from IDataQuery.) | |
ExecuteReader |
Executes the current query and returns it's results as a data reader
(Inherited from IDataQuery.) | |
Expand |
Expands the expression by replacing parameters with their values
(Inherited from IQueryParameters.) | |
ExpandColumns |
Expands the columns within this query
| |
FirstResult |
Sets the query as a single object query
(Inherited from IDataQuerySettings TQuery .) | |
ForEachRow |
Executes the given action for each item (DataRow) in the result. Processes the items in batches of the given size.
(Inherited from IDataQuery.) | |
From |
Defines the source of the data (table, view or a nested query)
| |
GetCompleteSettings |
Gets the complete parameters for the query execution
(Inherited from IDataQuery.) | |
GetExpression |
Gets a string expression representing this object
(Inherited from IQueryObjectWithValue.) | |
GetFullQueryText |
Gets the full query text including resolved parameters
(Inherited from IDataQuery.) | |
GetListResult T |
Gets the result as a list of values from the first column that the query returns. Excludes null values from the result.
(Inherited from IDataQuery.) | |
GetScalarResult T |
Gets the scalar
(Inherited from IDataQuery.) | |
GroupBy |
Specifies the columns to group by
(Inherited from IDataQuerySettings TQuery .) | |
HasCompatibleSource |
Returns true if the given query is an external source
(Inherited from IDataQuery.) | |
Having( IWhereCondition ) |
Adds the given having conditions to the query.
(Inherited from IDataQuerySettings TQuery .) | |
Having(Action WhereCondition ) |
Adds the given where condition to the query. Creates a new where condition object and runs the setup actions on it.
(Inherited from IDataQuerySettings TQuery .) | |
Having(String, Boolean) |
Specifies the group by having condition
(Inherited from IDataQuerySettings TQuery .) | |
Changed |
Marks the object as changed
(Inherited from IQueryObject.) | |
IncludeDataParameters |
Adds the data parameters to the current query parameters
(Inherited from IQueryObject.) | |
Intersect |
Gets the intersection of this data query with another query
| |
NewGroupBy |
Clears the current group by, reverting the source of data to the original. Note, that this method also resets the existing having condition which is closely bound to the group by.
(Inherited from IDataQuerySettings TQuery .) | |
NewHaving |
Clears the current having condition
(Inherited from IDataQuerySettings TQuery .) | |
NewWhere |
Clears the current where condition
(Inherited from IWhereCondition TParent .) | |
NextPage |
Adjusts the query to a next page, using the current page size. Use in combination with PagedBy and NextPageAvailable to iterate over the data in batches.
(Inherited from IDataQuerySettings TQuery .) | |
NoResults |
Sets the where condition to exclude all data from result
(Inherited from IWhereCondition TParent .) | |
NotPaged |
Sets up the query to become not paged query and output all results at once.
(Inherited from IDataQuerySettings TQuery .) | |
Or |
Changes the where operator to OR for next where conditions. Use in combination of methods Where...
(Inherited from IWhereCondition TParent .) | |
Or(IWhereCondition) |
Adds the given where condition with the OR operator
(Inherited from IWhereCondition TParent .) | |
Or(Action WhereCondition ) |
Adds the given where condition with the OR operator. Creates a new where condition object and runs the setup actions on it.
(Inherited from IWhereCondition TParent .) | |
OrderBy( String ) |
Adds the columns to the order by query
(Inherited from IDataQuerySettings TQuery .) | |
OrderBy(OrderDirection, String ) |
Adds the columns to the order by query
(Inherited from IDataQuerySettings TQuery .) | |
OrderByAscending |
Adds the columns to the order by query to order by the given columns in ascending order
(Inherited from IDataQuerySettings TQuery .) | |
OrderByDefault |
Sets the default order by for the query
| |
OrderByDescending |
Adds the columns to the order by query to order by the given columns in descending order
(Inherited from IDataQuerySettings TQuery .) | |
Page |
Specifies the page to select with given page index and page size. Page number is indexed from 0 (first page)
(Inherited from IDataQuerySettings TQuery .) | |
PagedBy |
Sets up the query as a paged query with the given page size. Resets the page index to first page. Use in combination with NextPageAvailable and NextPage to iterate over the data in batches.
(Inherited from IDataQuerySettings TQuery .) | |
ReplaceColumn |
Replaces the selected column with a new name
(Inherited from IDataQuerySettings TQuery .) | |
ReturnNoResults |
Sets the query to return no results. This action is irreversible, once the query is set to return no results it cannot be changed.
This method is used by data engine to forbid access to data that are not allowed to be accessed (e.g. license limitations), without notifying the process about the fact.
(Inherited from IWhereCondition.) | |
Select T |
Transforms the current result
(Inherited from IDataQuery.) | |
Source |
Defines the source of the data (table, view or a nested query)
| |
Take |
Identity method to make the query expression more readable. Use before the Columns or Page method. Doesn't provide any functionality.
(Inherited from IDataQuerySettings TQuery .) | |
Then |
Identity method to make the query expression more readable. Use before the OrderBy method. Doesn't provide any functionality.
(Inherited from IDataQuerySettings TQuery .) | |
TopN |
Selects only first top N number of records
(Inherited from IDataQuerySettings TQuery .) | |
ToString |
Returns the string representation of the expression, with possibility of expanding parameters
(Inherited from IQueryParameters.) | |
Union |
Gets the union of this data query with another query
| |
UnionAll |
Gets the union of this data query with another query without eliminating the duplicities
| |
Where( IWhereCondition ) |
Adds the given where conditions to the query
(Inherited from IWhereCondition TParent .) | |
Where(Action WhereCondition ) |
Adds the given where condition to the query. Creates a new where condition object and runs the setup actions on it.
(Inherited from IWhereCondition TParent .) | |
Where(String, QueryDataParameters) |
Adds the given where condition to the query
(Inherited from IWhereCondition TParent .) | |
Where(String, QueryUnaryOperator) |
Adds the given where condition to the query. Matches the column value with an unary operator.
(Inherited from IWhereCondition TParent .) | |
Where(String, QueryOperator, Object) |
Adds the given where condition to the query. Matches the column to a given value.
(Inherited from IWhereCondition TParent .) | |
WhereAnyColumn |
Matches the given condition on any column with the same type as the given value type.
| |
WhereAnyColumnContains |
Adds condition to all items that contain given text in any of the string columns. Performs a SQL substring search on the data.
| |
WhereContains |
Adds the condition for a string column to contain some substring
(Inherited from IWhereCondition TParent .) | |
WhereEmpty |
Adds the where condition for a null or empty column value
(Inherited from IWhereCondition TParent .) | |
WhereEquals |
Adds the given where condition to the query. Matches the column to a given value.
(Inherited from IWhereCondition TParent .) | |
WhereEqualsOrNull |
Adds the given where condition to the query. Matches the column to a given value or null value.
(Inherited from IWhereCondition TParent .) | |
WhereExists |
Adds where condition with EXISTS and the nested query "EXISTS (...)"
(Inherited from IWhereCondition TParent .) | |
WhereFalse |
Adds the where condition for a false column value (boolean column equals false).
(Inherited from IWhereCondition TParent .) | |
WhereID |
Adds the where condition to match the ID to the query. In case the column name is not provided or unknown, does not generate where condition. If given ID is invalid, adds the condition to match NULL.
(Inherited from IWhereCondition TParent .) | |
WhereIn(String, IDataQuery) |
Adds where condition to the nested query, e.g. "columnName IN (...)"
(Inherited from IWhereCondition TParent .) | |
WhereIn(String, IList Int32 ) |
Adds where condition to the list of values, e.g. "columnName IN (...)"
(Inherited from IWhereCondition TParent .) | |
WhereLike |
Adds the given where condition to the query. Matches the column to a given value using LIKE operator.
(Inherited from IWhereCondition TParent .) | |
WhereNot |
Adds the negation of the given where condition
(Inherited from IWhereCondition TParent .) | |
WhereNotContains |
Adds the condition for a string column not to contain some substring
(Inherited from IWhereCondition TParent .) | |
WhereNotEmpty |
Adds the where condition for a non empty column value
(Inherited from IWhereCondition TParent .) | |
WhereNotExists |
Adds where condition with NOT EXISTS and the nested query "NOT EXISTS (...)"
(Inherited from IWhereCondition TParent .) | |
WhereNotIn(String, IDataQuery) |
Adds where condition to the nested query, e.g. "columnName NOT IN (...)"
(Inherited from IWhereCondition TParent .) | |
WhereNotIn(String, IList Int32 ) |
Adds where condition to the list of values, e.g. "columnName NOT IN (...)"
(Inherited from IWhereCondition TParent .) | |
WhereNotLike |
Adds the given where condition to the query. Matches the column to a given value using NOT LIKE operator.
(Inherited from IWhereCondition TParent .) | |
WhereNotNull |
Adds the where condition for a not null column value
(Inherited from IWhereCondition TParent .) | |
WhereNotStartsWith |
Adds the condition for a string column not to start with some prefix
(Inherited from IWhereCondition TParent .) | |
WhereNull |
Adds the where condition for a null column value
(Inherited from IWhereCondition TParent .) | |
WhereStartsWith |
Adds the condition for a string column to start with some prefix
(Inherited from IWhereCondition TParent .) | |
WhereTrue |
Adds the where condition for a true column value (boolean column equals true).
(Inherited from IWhereCondition TParent .) | |
WithComment |
Adds the comment to the given query
(Inherited from IDataQuerySettings TQuery .) | |
WithSettings(AbstractQueryObject) |
Applies the given parameters to the query
| |
WithSettings(Action DataQuerySettings ) |
Applies the given parameters to the query
| |
WithSource(DataSet) |
Sets the given DataSet as the source of the data query
| |
WithSource(DataQuerySource) |
Sets the given source as the source of the data query
|
Extension Methods
Name | Description | |
---|---|---|
FakeExecution |
Fakes the execution of a query
(Defined by UnitTestExtensions.) |
Properties
Name | Description | |
---|---|---|
AllowMaterialization |
If true, the query allows materialization
(Inherited from IDataQuery.) | |
ClassName |
Class name
(Inherited from IDataQuery.) | |
ConnectionStringName |
Query connection string name
(Inherited from IDataQuery.) | |
CustomQueryText |
Custom query text
(Inherited from IDataQuery.) | |
DataSource |
Data source that provides the query data. If not set, the query queries the database directly
(Inherited from IDataQuery.) | |
DataSourceName |
Gets the unique query source ID
(Inherited from IDataQuery.) | |
DefaultOrderByColumns |
Default order by columns used in case if needed, and order by is not specified
(Inherited from IDataQuery.) | |
DefaultSourceExpression |
Default source of the query in case source is not defined
(Inherited from IDataQuerySettings.) | |
FilterColumns |
List of columns used for extra filtering within the query, e.g. "CMS_C, CMS_RN"
(Inherited from IDataQuerySettings.) | |
GroupByColumns |
List of columns to group by, by default doesn't group, e.g. "NodeLevel, NodeOwner"
(Inherited from IDataQuerySettings.) | |
HasDataSource |
Returns true if the query has specific data source
(Inherited from IDataQuery.) | |
HavingCondition |
Where condition for the group by on the data, e.g. "DocumentName = 'ABC'"
(Inherited from IDataQuerySettings.) | |
IncludeBinaryData |
If true, the query includes the object binary data. Default is false
(Inherited from IDataQuery.) | |
IsCombinedQuery |
If true, this query is combined from several queries. When additional parameters are applied to it, it will be wrapped into a nested query.
(Inherited from IDataQuery.) | |
IsNested |
Indicates that this query is part of multi query
(Inherited from IDataQuery.) | |
IsSubQuery |
If true, the query is a sub-query used in another query
(Inherited from IDataQuery.) | |
MaxRecords |
Maximum number of results to return (use for paging together with Offset)
(Inherited from IDataQuerySettings.) | |
Name |
Object name, empty by default
(Inherited from IQueryObject.) | |
Offset |
Index of the first record to return (use for paging together with MaxRecords)
(Inherited from IDataQuerySettings.) | |
OrderByColumns |
List of columns by which the result should be sorted, e.g. "NodeLevel, DocumentName DESC"
(Inherited from IDataQuerySettings.) | |
Parameters |
Query data parameters
(Inherited from IQueryObject.) | |
QueryName |
Query name
(Inherited from IDataQuery.) | |
QueryText |
Query text
(Inherited from IDataQuery.) | |
Result |
DataSet with the result
(Inherited from IDataQuery.) | |
ReturnsSingleColumn |
Returns true if the query returns single column
(Inherited from IDataQuery.) | |
SelectColumns | Obsolete.
List of columns to return, by default returns all columns, e.g. "DocumentName, DocumentID"
(Inherited from IDataQuerySettings.) | |
SelectColumnsList |
List of columns to return, by default returns all columns, e.g. "DocumentName, DocumentID"
(Inherited from IDataQuerySettings.) | |
SelectDistinct |
If set to true, returns only distinct (different) values.
(Inherited from IDataQuerySettings.) | |
SourceExpression |
Source of the query
(Inherited from IDataQuerySettings.) | |
SupportsReader |
Returns true if the query supports data reader
(Inherited from IDataQuery.) | |
Tables |
Collection of the result tables
(Inherited from IDataQuery.) | |
TopNRecords |
If set, selects only first top N number of records
(Inherited from IDataQuerySettings.) | |
TotalRecords |
Gets the number of total records when paging is used. Gets updated once the query executes
(Inherited from IDataQuery.) | |
WhereCondition |
Where condition on the data, e.g. "DocumentName = 'ABC'"
(Inherited from IWhereCondition.) | |
WhereIsComplex |
Returns true if the given where condition is a complex where condition
(Inherited from IWhereCondition.) |
See Also