PhysicalFileSystemProvider.Exists(FileManagerFile) Method

Implements the file existence verification.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v20.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

public override bool Exists(
    FileManagerFile file
)

VB.NET

Public Overrides Function Exists(
    file As FileManagerFile
) As Boolean

Parameters

Name	Type	Description
file	FileManagerFile	A FileManagerFile object that is the processed file.

Returns

Type	Description
Boolean	true if the file exists within a file manager; otherwise, false.

Remarks

The Exists method implements the file existence verification when the default PhysicalFileSystemProvider is used.

If you create a custom file system provider inherited from the PhysicalFileSystemProvider class, you can override the Exists method to perform any custom actions.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the Exists(FileManagerFile) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

aspxfilemanager-how-to-show-a-confirmation-dialog-to-overwrite-an-existing-file-e4879/CS/ConfirmDialog/Default.aspx.cs#L47

        return false;
    return base.Exists(file);
}

VB.NET

aspxfilemanager-how-to-show-a-confirmation-dialog-to-overwrite-an-existing-file-e4879/VB/ConfirmDialog/Default.aspx.vb#L44

    End If
    Return MyBase.Exists(file)
End Function