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 End-User Documentation

RepositoryItem.QueryProcessKey Event

Provides the capability to specify whether the key pressed in the editor is processed by the editor or a container control (GridControl, TreeList, etc.) that displays this editor.

Namespace:DevExpress.XtraEditors.Repository
Assembly:DevExpress.XtraEditors.v17.1.dll

Expanded Syntax

Expanded Event Data

The event handler receives an argument of type DevExpress.XtraEditors.Controls.QueryProcessKeyEventArgs containing data related to this event.

Expanded Remarks

The QueryProcessKey event fires when an end-user presses a key in an editor. Handle this event to specify whether the pressed key is processed by the editor or a container control that displays this editor. The BaseEdit.QueryProcessKey event is equivalent to the current event.

The following QueryProcessKeyEventArgs properties provide information specific to this event.

Property Description
KeyData Gets the System.Windows.Forms.Key value that specifies the key to process.
IsNeededKey Indicates whether the key is handled by the editor or the container control. true if the key is processed by the editor; false if the key is processed by the container control.

Expanded Example

By default, pressing the Enter key in a MemoEdit causes a carriage return. The following example shows how to handle the QueryProcessKey event to prevent this from happening.

In the following example, the QueryProcessKey event is handled to set the IsNeededKey parameter to false when the Enter key is pressed. This prevents the MemoEdit control from processing this key. If the MemoEdit control is used as an in-place editor within a container control (e.g., GridControl), as a result, the pressed Enter key will be processed by this container control. The container control will close the active MemoEdit control while saving the changes,.

Expanded See Also

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