ASPxHtmlEditor.ImageSelectorFileUploading Event
Fires before a file is uploaded to the Image Selector, and allows you to cancel the action.
Namespace: DevExpress.Web.ASPxHtmlEditor
Assembly: DevExpress.Web.ASPxHtmlEditor.v20.2.dll
NuGet Package: DevExpress.Web
Declaration
Event Data
The ImageSelectorFileUploading event's data class is FileManagerFileUploadEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| Cancel | Gets or sets a value indicating whether the action that raised the event should be canceled. Inherited from FileManagerActionEventArgsBase. |
| ErrorText | Gets or sets a text for the explanatory message. Inherited from FileManagerActionEventArgsBase. |
| File | Gets a file, related to the event. |
| FileName | Gets or sets the name of a file selected to upload. |
| InputStream | Gets a stream object that points to the uploaded file. |
| OutputStream | Gets a stream object that points to the uploaded file. |
Remarks
Prior to each time a file is uploaded to the Image Selector, the ImageSelectorFileUploading event occurs, allowing you to cancel the file upload. The event parameter’s FileManagerFileUploadEventArgs.File property identifies the file that is being processed. To cancel the upload operation, set the FileManagerActionEventArgsBase.Cancel property to true. To show a message explaining the reason for the upload cancellation, specify the FileManagerActionEventArgsBase.ErrorText property.
To customize the Image Selector settings use the HtmlEditorInsertImageDialogSettings.SettingsImageSelector property.