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   [Expand]AfterInsertSnListColumnsEventArgs Class
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 End-User Documentation

SnapDocument.CustomFilterExpression Event

Allows you to include WHERE clauses in SQL queries.

Namespace:DevExpress.Snap.Core.API
Assembly:DevExpress.Snap.v17.1.Core.dll

Expanded Syntax

Expanded Event Data

The event handler receives an argument of type CustomFilterExpressionEventArgs containing data related to this event.

Expanded Remarks

The CustomFilterExpression event is fired when the SnapDocument sends a query to reload data from the server. Use the event parameter's DevExpress.DataAccess.CustomFilterExpressionEventArgs.FilterExpression property to specify a filter expression to be included into this query as a WHERE clause.

The filter expression should be represented by the DevExpress.Data.Filtering.CriteriaOperator descendant. To learn how to create the appropriate object, see Creating Criteria.

Use the DevExpress.DataAccess.CustomFilterExpressionEventArgs.DataSourceName property to identify the data source for which the event has been raised.

Note

The CustomFilterExpression event is fired only for data sources created via the Query Designer and not populated with a custom SQL query.

You can also handle the ConfigureDataConnection event to specify connection parameters on the fly.

Expanded See Also

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