This control provides querying for relational databases.
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When this control is selected, there
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Parameters
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a menu appears on the right side of it with the Query designer. When selecting the Data tab, under the Data Sources, there is an "Add New" button. One of the options is Database Query.
Query
Parameters
Target schema, table, and include all fields option are presented in this section.
Target Schema
Select one of the newly created or imported database schemas listed in from this dropdown menu.
Target Table
Will be updated. After selecting the target schema, select a newly created or imported database table from the dropdown menu.
Include All Fields?
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- Yes, include all fields always.
Fields
Will be updated.
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Caption
Will be updated.
Formula
Will be updated.
- . : Check this option if you want to include all fields in the query result.
Fields
Select the fields you want to include in the query result. You can specify field orders using the arrow buttons on the right side.
Field
Lists columns of selected database and its related tables.
Caption
The caption to be displayed to the user. If not specified, the field is hidden from the user.
Formula
The formula to use for aggregate values.
Mapped XPath
XPath to map field value on the data model. If not specified, the Name property is used.
Order
Field
Will be updatedSpecify field(s) to regard when ordering.
Order Type
Will be updated. Select ordering type.
- Ascending
- Descending
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Criteria
Add as many criteria as you want to create your where clause.
Field
Will be updatedSpecify field(s) to filter select query.
Formula
Will be updated.Comparison
Will be updatedThe formula to use for aggregate values.
- Count
- Sum
- Average
- Minimum
- Maximum
- Average of distinct values
- Sum of distinct values
- Count of distinct values
Comparison
Criteria value comparison.
- Equals
- Different
- Like
- Less than
- Greater than
- Less than or equals
- Greater than or equals
Value
Will be updatedThe criteria value. You should use an expression between these double brackets {{expression}}. The expression should be an XPath, for example {{Search/Identity}}.
Condition
Will be updatedCondition to merge with next criteria.
- And
- Or
Ignore Values
Will be updated.
- Value,
Blocks
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Condition
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Sub Queries
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Enter a value(s) to ignore in the select query.
Blocks
In order to isolate conditions properly, you may use a block structure for the where clause. Add as many blocks as you want and select their condition.
Sub Queries
Creates a sub-query in your select query.
Relation
Lists relations of the specified table from the main query.
Mapped XPath
XPath to map field value on the data model. If not specified, the Name property is used.
Include All Fields
Check this option if you want to include all fields in the query result.
Results
Options to map and format the result data.
Item XPath
XPath of the item that will be listed in the related control. If it is left empty, which is the same as the * value, all resulting items are listed.
List Item Formatting
Customizes the format of the control's display options.
Display Text Format
Specify the format to display the result text. You can use column names inside curly braces. Ex: {{Name}} - {{Id}}
Value Format
Specify the format of the value. You can use column names inside curly braces. Ex: {{Id}} - {{Type}}
Selection Mappings
In order to map a column of data from the query result into an XPath, create a mapping by pressing Add New button.
Source
Name of the data column to be mapped.
Target
XPath to map data.
Hierarchy ColumnInclude Page _Hierarchy Column _Hierarchy Column