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 End-User Documentation

RepositoryItemPopupBase.QueryPopUp Event

Enables you to specify whether an attempt to open the editor's popup window will succeed.

Namespace:DevExpress.XtraEditors.Repository
Assembly:DevExpress.XtraEditors.v17.2.dll

Expanded Syntax

Expanded Event Data

The event handler receives an argument of type System.ComponentModel.CancelEventArgs containing data related to this event.

The following CancelEventArgs properties provide information specific to this event.
Property Description
Cancel Gets or sets a value indicating whether the event should be canceled.

Expanded Remarks

The QueryPopUp event is raised each time the editor's popup window is about to be opened. Handle the event when you want to stop the window from being opened by setting the event's Cancel parameter to true.

An editor's popup window cannot be opened if the editor is disabled or read-only (the RepositoryItem.Enabled property value is false or the RepositoryItem.ReadOnly property value is true).

The current QueryPopUp event is equivalent to the editor's PopupBaseEdit.QueryPopUp event.

Expanded Example

The following code lists a PopupBaseEdit.QueryPopUp event handler which enables opening the dropdown window only if the user typed the text in the edit box which matches an item in the RepositoryItemComboBox.Items collection. If the user typed a value which does not exist in the collection, the popup is not opened.

Expanded See Also

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