JavaScript/jQuery FileManager Options

Default Value: null

The value of this option will be passed to the accesskey attribute of the HTML element that underlies the widget.

activeStateEnabled

Specifies whether or not the widget changes its state when interacting with a user.

Type:

Default Value: false

This option is used when the widget is displayed on a platform whose guidelines include the active state change for widgets.

allowedFileExtensions

Specifies the allowed upload file extensions.

Type:

Array<String>

Default Value: ['.txt', '.rtf', '.doc', '.docx', '.odt', '.xls', '.xlsx', '.ods', '.ppt', '.pptx', '.odp', '.pdf', '.xml', '.png', '.svg', '.gif', '.jpg', '.jpeg', '.ico', '.bmp', '.avi', '.mpeg', '.mkv', '']

The FileManager widget cannot upload a file and displays an error message when the file's extension is not allowed.

DevExtreme File Manager - Allowed File Extension

jQuery

JavaScript

$(function () {
    $("#file-manager").dxFileManager({
        allowedFileExtensions: [".js", ".json", ".css"]
        // ...
    });
});

contextMenu

Configures the context menu settings.

Type: dxFileManagerContextMenu

currentPath

Specifies the path that is used when the FileManager is initialized.

Type:

Default Value: ''

jQuery

JavaScript

$(function () {
    $("#file-manager").dxFileManager({
        currentPath: "Documents/Images"
        // ...
    });
});

customizeDetailColumns

Customizes columns in details view. Applies only if itemView.mode is "details".

Type:

Function parameters:

columns:

Array<DataGrid Column>

The columns before customization.

Return Value:

Array<DataGrid Column>

The columns after customization.

jQuery

index.js

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        customizeDetailColumns: function(columns) {
            // ...
            // Customize the "columns" array objects here
            // ...
            return columns;
        }
    });
});

Angular

app.component.html

app.component.ts

app.module.ts

<dx-file-manager ...
    [customizeDetailColumns]="fileManager_customizeDetailColumns">
</dx-file-manager>

import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    // Uncomment the following lines if the function should be executed in the component's context
    // constructor() {
    //     this.fileManager_customizeDetailColumns = this.fileManager_customizeDetailColumns.bind(this);
    // }

    fileManager_customizeDetailColumns(columns) {
        // ...
        // Customize the "columns" array objects here
        // ...
        return columns;
    }
}

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

import { DxFileManagerModule } from 'devextreme-angular';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxFileManagerModule
    ],
    providers: [],
    bootstrap: [AppComponent]
})
export class AppModule { }

Vue

App.vue

<template>
    <DxFileManager ...
        :customize-detail-columns="fileManager_customizeDetailColumns"
    />
</template>

<script>
import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import DxFileManager from 'devextreme-vue/file-manager';

export default {
    components: {
        DxFileManager
    },
    methods: {
        fileManager_customizeDetailColumns(columns) {
            // ...
            // Customize the "columns" array objects here
            // ...
            return columns;
        }
    }
}
</script>

React

App.js

import React from 'react';

import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import FileManager from 'devextreme-react/file-manager';

class App extends React.Component {
    // Uncomment the following lines if the function should be executed in the component's context
    // constructor(props) {
    //     super(props);
    //     this.fileManager_customizeDetailColumns = this.fileManager_customizeDetailColumns.bind(this);
    // }

    fileManager_customizeDetailColumns(columns) {
        // ...
        // Customize the "columns" array objects here
        // ...
        return columns;
    }

    render() {
        return (
            <FileManager ...
                customizeDetailColumns={this.fileManager_customizeDetailColumns}
            />
        );
    }
}
export default App;

customizeThumbnail

Allows you to provide custom icons to be used as thumbnails.

Type:

Function parameters:

fileItem:

File or folder parameters.

Return Value:

An icon to use as a thumbnail.

This function should return one of the following:

The icon's URL
The icon's name if the icon is from the DevExtreme icon library
The icon's CSS class if the icon is from an external icon library (see External Icon Libraries)
The icon in the Base64 format

disabled

Specifies whether the widget responds to user interaction.

Type:

Default Value: false

elementAttr

Specifies the attributes to be attached to the widget's root element.

Type:

Default Value: {}

jQuery

$(function(){
    $("#fileManagerContainer").dxFileManager({
        // ...
        elementAttr: {
            id: "elementId",
            class: "class-name"
        }
    });
});

Angular

HTML

TypeScript

<dx-file-manager ...
    [elementAttr]="{ id: 'elementId', class: 'class-name' }">
</dx-file-manager>

import { DxFileManagerModule } from "devextreme-angular";
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxFileManagerModule
    ],
    // ...
})

Vue

App.vue

<template>
    <DxFileManager ...
        :element-attr="fileManagerAttributes">
    </DxFileManager>
</template>

<script>
import DxFileManager from 'devextreme-vue/file-manager';

export default {
    components: {
        DxFileManager
    },
    data() {
        return {
            fileManagerAttributes: {
                id: 'elementId',
                class: 'class-name'
            }
        }
    }
}
</script>

React

App.js

import React from 'react';

import FileManager from 'devextreme-react/file-manager';

class App extends React.Component {
    fileManagerAttributes = {
        id: 'elementId',
        class: 'class-name'
    }

    render() {
        return (
            <FileManager ...
                elementAttr={this.fileManagerAttributes}>
            </FileManager>
        );
    }
}
export default App;

fileProvider

Specifies the file provider.

Type:

Default Value: null

File providers are components that provide APIs used to access and modify virtual file systems.

The following example illustrates how to configure an Array file provider:

jQuery

index.js

data.js

$(function () {
    $("#file-manager").dxFileManager({
        fileProvider: fileSystem,
        // ...
    });
});

var fileSystem = [
    {
        name: "Documents",
        isDirectory: true,
        items: [
            {
                name: "Projects",
                isDirectory: true,
                items: [
                    {
                        name: "About.rtf",
                        isDirectory: false,
                        size: 1024
                    },
                    {
                        name: "Passwords.rtf",
                        isDirectory: false,
                        size: 2048
                    }
                ]
            },
            {
                name: "About.xml",
                isDirectory: false,
                size: 1024
            },
            //...
        ],
    },
    {
        name: "Images",
        isDirectory: true,
        items: [
            {
                name: "logo.png",
                isDirectory: false,
                size: 20480
            },
            {
                name: "banner.gif",
                isDirectory: false,
                size: 10240
            }
        ]
    },
    //...
];

Refer to File Providers for information on supported file providers.

focusStateEnabled

Specifies whether the widget can be focused using keyboard navigation.

Type:

Default Value: false

height

Specifies the widget's height.

Type:

|

|

Return Value:

|

The widget's height.

Default Value: undefined

This option accepts a value of one of the following types:

Number
The height in pixels.
String
A CSS-accepted measurement of height. For example, "55px", "80%", "inherit".
Function
A function returning either of the above. For example:
JavaScript
```
height: function() {
    return window.innerHeight / 1.5;
}
```

hint

Specifies text for a hint that appears when a user pauses on the widget.

Type:

Default Value: undefined

hoverStateEnabled

Specifies whether the widget changes its state when a user pauses on it.

Type:

Default Value: false

itemView

Configures the file and folder view.

Type:

Default Value: null

DevExtreme File Manager - Item View

jQuery

JavaScript

$(function () {
    $("#file-manager").dxFileManager({
        itemView: {
            mode: "details",
            showFolders: false,
            showParentFolder: false
        }
        // ...
    });
});

onContentReady

A function that is executed when the widget's content is ready and each time the content is changed.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name

Type

Description

component

The widget's instance.

element

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model

Model data. Available only when using Knockout.

Default Value: null

onCurrentDirectoryChanged

A function that is executed when the current directory is changed.

Type:

Function parameters:

e:

Information about the event that caused the function's execution.

Object structure:

Name

Type

Description

component

The widget's instance.

element

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model

The model data. Available only if you use Knockout.

Default Value: null

jQuery

JavaScript

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        onCurrentDirectoryChanged: function(e) {
            // Your code goes here
        }
    });
});

onDisposing

A function that is executed before the widget is disposed of.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name

Type

Description

component

The widget's instance.

element

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model

Model data. Available only if you use Knockout.

Default Value: null

onInitialized

A function used in JavaScript frameworks to save the widget instance.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name

Type

Description

component

The widget's instance.

element

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

Default Value: null

onOptionChanged

A function that is executed after a widget option is changed.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name	Type	Description
model	Object	Model data. Available only if you use Knockout.
fullName	String	The path to the modified option that includes all parent options.
element	HTMLElement \| jQuery	The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.
component	FileManager	The widget's instance.
name	String	The modified option if it belongs to the first level. Otherwise, the first-level option it is nested into.
value	any	The modified option's new value.

Default Value: null

onSelectedFileOpened

A function that is executed when the selected file is opened.

Type:

Function parameters:

e:

Information about the event that caused the function's execution.

Object structure:

Name	Type	Description
component	FileManager	The widget's instance.
element	HTMLElement \| jQuery	The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.
fileItem	Object	File parameters.
model	Object	Model data. Available only if you use Knockout.

Default Value: null

jQuery

index.js

$(function() {
    $("#fileManagerContainer").dxFileManager({
        // ...
        onSelectedFileOpened: function(e) {
            // Your code goes here
        }
    });
});

Angular

app.component.html

app.component.ts

app.module.ts

<dx-file-manager ...
    (onSelectedFileOpened)="fileManager_onSelectedFileOpened($event)">
</dx-file-manager>

import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    fileManager_onSelectedFileOpened(e) {
        // Your code goes here
    }
}

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

import { DxFileManagerModule } from 'devextreme-angular';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxFileManagerModule
    ],
    providers: [],
    bootstrap: [AppComponent]
})
export class AppModule { }

Vue

App.vue

<template>
    <DxFileManager ...
        :selected-file-opened="fileManager_onSelectedFileOpened"
    />
</template>

<script>
import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import DxFileManager from 'devextreme-vue/file-manager';

export default {
    components: {
        DxFileManager
    },
    methods: {
        fileManager_onSelectedFileOpened(e) {
            // Your code goes here
        }
    }
}
</script>

React

App.js

import React from 'react';

import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import FileManager from 'devextreme-react/file-manager';

class App extends React.Component {
    fileManager_onSelectedFileOpened(e) {
        // Your code goes here
    }

    render() {
        return (
            <FileManager ...
                onSelectedFileOpened={this.fileManager_onSelectedFileOpened}
            />
        );
    }
}
export default App;

permissions

Specifies actions that a user is allowed to perform on files and folders.

Type:

jQuery

JavaScript

$(function () {
    $("#file-manager").dxFileManager({
        permissions: {
            create: true,
            copy: true,
            move: true,
            remove: true,
            rename: true
        },
        // ...
    });
});

rootFolderName

Specifies the root folder name.

Type:

Default Value: 'Files'

jQuery

JavaScript

$(function () {
    $("#file-manager").dxFileManager({
        rootFolderName: "~/Files"
        // ...
    });
});

rtlEnabled

Switches the widget to a right-to-left representation.

Type:

Default Value: false

When this option is set to true, the widget text flows from right to left, and the layout of elements is reversed. To switch the entire application/site to the right-to-left representation, assign true to the rtlEnabled field of the object passed to the DevExpress.config(config) method.

JavaScript

DevExpress.config({
    rtlEnabled: true
});

selectionMode

Specifies whether a user can select a single or multiple files and folders in the item view simultaneously.

Type:

Default Value: 'multiple'

Accepted Values: 'multiple' | 'single'

NOTE

The check boxes that select/unselect individual items are displayed only in multiple selection mode.

jQuery

JavaScript

$(function () {
    $("#file-manager").dxFileManager({
        selectionMode: "single"
        // ...
    });
});

tabIndex

Specifies the number of the element when the Tab key is used for navigating.

Type:

Number

Default Value: 0

The value of this option will be passed to the tabindex attribute of the HTML element that underlies the widget.

toolbar

Configures toolbar settings.

Type: dxFileManagerToolbar

DevExtreme File Manager - Toolbar

upload

Configures upload settings.

Type:

visible

Specifies whether the widget is visible.

Type: