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Showing content from https://js.devexpress.com/Documentation/ApiReference/UI_Components/dxTooltip/Methods/ below:

Vue Tooltip Methods | Vue Documentation

This section describes members used to manipulate the UI component.

Postpones rendering that can negatively affect performance until the endUpdate() method is called.

The beginUpdate() and endUpdate() methods reduce the number of renders in cases where extra rendering can negatively affect performance.

Gets the UI component's content.

Specifies the device-dependent default configuration properties for this component.

The component's default device properties.

Object structure:

Device

Function

Device parameters.
When you specify a function, get information about the current device from the argument. Return true if the properties should be applied to the device.

Object

Options to be applied.

defaultOptions is a static method that the UI component class supports. The following code demonstrates how to specify default properties for all instances of the Tooltip UI component in an application executed on the desktop.

DevExpress.ui.dxTooltip.defaultOptions({ 
    device: { deviceType: "desktop" },
    options: {
        // Here go the Tooltip properties
    }
});

import Tooltip, { Properties } from "devextreme/ui/tooltip";
// ...
export class AppComponent {
    constructor () {
        Tooltip.defaultOptions<Properties>({
            device: { deviceType: "desktop" },
            options: {
                // Here go the Tooltip properties
            }
        });
    }
}

<template>
    <div>
        <DxTooltip id="tooltip1" />
        <DxTooltip id="tooltip2" />
    </div>
</template>
<script>
import DxTooltip from "devextreme-vue/tooltip";
import Tooltip from "devextreme/ui/tooltip";

Tooltip.defaultOptions({
    device: { deviceType: "desktop" },
    options: {
        // Here go the Tooltip properties
    }
});

export default {
    components: {
        DxTooltip
    }
}
</script>

import dxTooltip from "devextreme/ui/tooltip";
import Tooltip from "devextreme-react/tooltip";

dxTooltip.defaultOptions({
    device: { deviceType: "desktop" },
    options: {
        // Here go the Tooltip properties
    }
});

export default function App() {
    return (
        <div>
            <Tooltip id="tooltip1" />
            <Tooltip id="tooltip2" />
        </div>
    )
}

You can also set rules for multiple device types:

const devicesConfig = [
    { deviceType: 'desktop' },
    { deviceType: 'tablet' },
    { deviceType: 'phone' },
];

devicesConfig.forEach(deviceConfig => {
    DevExpress.ui.dxTooltip.defaultOptions({ 
        device: deviceConfig,
        options: {
            // Here go the Tooltip properties
        }
    });
});

import Tooltip, { Properties } from "devextreme/ui/tooltip";
// ...
export class AppComponent {
    constructor () {
        const devicesConfig = [
            { deviceType: 'desktop' },
            { deviceType: 'tablet' },
            { deviceType: 'phone' },
        ];

        devicesConfig.forEach(deviceConfig => {
            Tooltip.defaultOptions<Properties>({
                device: deviceConfig,
                options: {
                    // Here go the Tooltip properties
                }
            });
        });
    }
}

<template>
    <div>
        <DxTooltip />
    </div>
</template>
<script>
import DxTooltip from "devextreme-vue/tooltip";
import Tooltip from "devextreme/ui/tooltip";

const devicesConfig = [
    { deviceType: 'desktop' },
    { deviceType: 'tablet' },
    { deviceType: 'phone' },
];

devicesConfig.forEach(deviceConfig => {
    Tooltip.defaultOptions({
        device: deviceConfig,
        options: {
            // Here go the Tooltip properties
        }
    });
});

export default {
    components: {
        DxTooltip
    }
}
</script>

import dxTooltip from "devextreme/ui/tooltip";
import Tooltip from "devextreme-react/tooltip";

const devicesConfig = [
    { deviceType: 'desktop' },
    { deviceType: 'tablet' },
    { deviceType: 'phone' },
];

devicesConfig.forEach(deviceConfig => {
    dxTooltip.defaultOptions({
        device: deviceConfig,
        options: {
            // Here go the Tooltip properties
        }
    });
});

export default function App() {
    return (
        <div>
            <Tooltip />
        </div>
    )
}

Disposes of all the resources allocated to the Tooltip instance.

After calling this method, remove the DOM element associated with the UI component:

$("#myTooltip").dxTooltip("dispose");
$("#myTooltip").remove();

Use conditional rendering instead of this method:

<dx-tooltip ...
    *ngIf="condition">
</dx-tooltip>

Use conditional rendering instead of this method:

<template>
    <DxTooltip ...
        v-if="condition">
    </DxTooltip>
</template>

<script>
import DxTooltip from 'devextreme-vue/tooltip';

export default {
    components: {
        DxTooltip
    }
}
</script>

Use conditional rendering instead of this method:

import React from 'react';

import Tooltip from 'devextreme-react/tooltip';

function DxTooltip(props) {
    if (!props.shouldRender) {
        return null;
    }

    return (
        <Tooltip ... >    
        </Tooltip>
    );
}

class App extends React.Component {
    render() {
        return (
            <DxTooltip shouldRender="condition" />
        );
    }
}
export default App;

Gets the root UI component element.

Refreshes the UI component after a call of the beginUpdate() method.

The beginUpdate() and endUpdate() methods reduce the number of renders in cases where extra rendering can negatively affect performance.

Gets the instance of a UI component found using its DOM node.

The UI component's container.

The UI component's instance.

getInstance is a static method that the UI component class supports. The following code demonstrates how to get the Tooltip instance found in an element with the myTooltip ID:

// Modular approach
import Tooltip from "devextreme/ui/tooltip";
...
let element = document.getElementById("myTooltip");
let instance = Tooltip.getInstance(element) as Tooltip;

// Non-modular approach
let element = document.getElementById("myTooltip");
let instance = DevExpress.ui.dxTooltip.getInstance(element);

• 3rd-Party Frameworks Integration API

Gets the UI component's instance. Use it to access other methods of the UI component.

This UI component's instance.

Detaches all event handlers from a single event.

The object for which this method is called.

Detaches a particular event handler from a single event.

The event's name.

The event's handler.

The object for which this method is called.

Subscribes to an event.

The event's name.

The event's handler.

The object for which this method is called.

Use this method to subscribe to one of the events listed in the Events section.

Subscribes to events.

Events with their handlers: { "eventName1": handler1, "eventName2": handler2, ...}

The object for which this method is called.

Use this method to subscribe to several events with one method call. Available events are listed in the Events section.

Gets the value of a single property.

The property's name or full path.

Return Value: any

This property's value.

Updates the value of a single property.

The property's name or full path.

optionValue: any

This property's new value.

Updates the values of several properties.

Options with their new values.

Recalculates the UI component's size and position without rerendering.

Resets a property to its default value.

Shows the UI component for a target element.

A Promise that is resolved if the UI component is displayed and rejected otherwise. It is a native Promise or a jQuery.Promise when you use jQuery.

Shows or hides the UI component depending on the argument.

Specifies whether to show or hide the UI component.

A Promise that is resolved with true if the UI component is shown or false if it is hidden. It is a native Promise or a jQuery.Promise when you use jQuery.

You can use the toggle(showing) method instead of the show() and hide() methods. In this case, pass true or false as the method parameter to show or hide the UI component.

The UI component is automatically hidden after the time specified in the displayTime property.

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