Namespace: Wisej.Core

Assembly: Wisej.Framework (

Properties of the client browser currently interacting with the application.

public class ClientBrowser




Returns an instance of the CookieStorage class that represents the "cookies" storage in the browser.


Returns an instance of the LocalStorage class that represents the "localStorage" object in the browser.


Returns an instance of the SessionStorage class that represents the "sessionStorage" object in the browser.


CultureInfo: Returns the locale declared in the application configuration file or detected from the client browser.

String: Device type. Can be one of "Mobile", "Tablet" or "Desktop".

Object: Returns the set of features supported/not-supported by the browser. Currently we detect: geolocation, webSocket, fullScreen, speechSynthesis, speechRecognition, notification, fullScreen, browserStorage.

String: IP Address of the client computer.

Boolean: Returns true if the browser is using dark mode. Since 3.0.10

Boolean: Returns true if the browser is in full screen mode.

Boolean: Returns true if the connection is secure.

String: Client language.

String: Client OS. Can be one of "iOS", "Android", "WebOS", "BlackBerry", "MacOS", "Linux", "Windows", "Unix", "Other".

Double: Returns the ratio of the resolution in physical pixels to the resolution in CSS pixels for the current display device.


Size: Screen size.

String: Returns the session ID associated with this ClientBrowser.

Size: Browser size. This is the window size, which can be different from the device (or screen) size.

String: Identifies the browser tab associated with with this ClientBrowser instance.

Int32: Returns the time difference between UTC time and local time, in minutes.

String: Browser type. Can be one of "IE", "Edge", "Chrome", "Opera", "Firefox", "Safari", "Other".

String: Returns the raw user agent string of the client browser.

Object: Returns a value or map set by the client when loading the application's first HTML page.

An application can use this property to retrieve a custom value on startup. For example, in Default.html add:

Wisej.userData = {
value1: 100,
someName: "test"

On the server side, you can retrieve the user data use at any time like this:

int value1 = Application.Browser.UserData.value1;
string value2 = Application.Browser.UserData.someName;

When used in conjunction with an aspx startup page (Default.aspx) it allows the application to retrieve data passed as a POST request and pass it to the Wisej application.

Int32: Browser version.

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