CustomFileSystemProviderBuilder.HasSubDirectoriesExpr(String) Method

A function or the name of a data source field that provides information on whether a file or directory contains sub directories. Mirrors the client-side hasSubDirectoriesExpr option.

Namespace: DevExtreme.AspNet.Mvc.Builders

Assembly: DevExtreme.AspNet.Core.dll

Declaration

public CustomFileSystemProviderBuilder HasSubDirectoriesExpr(
    string value
)

Parameters

Name	Type	Description
value	String	An inline or external JavaScript function.

Returns

Type	Description
CustomFileSystemProviderBuilder	A reference to this instance after the method is called.

Remarks

Use this method to specify a JavaScript handler for the client-side hasSubDirectoriesExpr callback. This handler can be an inline function or an external function’s reference. Function arguments are described in the client API reference.

Razor C#

@(Html.DevExtreme().FileManager()
    .FileSystemProvider(sp => sp
        .Custom()
            .HasSubDirectoriesExpr("myFileManagerProvider_hasSubDirectoriesExpr")
    )
)

<script>
    function myFileManagerProvider_hasSubDirectoriesExpr(arg) {
        // Handler code
    }
</script>

Refer to Handle Events and Define Callbacks for more information.