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Toast

in namespace DotVVM.Framework.Controls.Bootstrap4

Renders a Bootstrap Toast notification.

Usage & Scenarios

Toast is a component designed to display push notifications we know from various mobile and desktop operating systems.

https://getbootstrap.com/docs/4.3/components/toasts/

Sample 1: Basic Toast

The header content of Toast can be set be one of two ways: using the HeaderText property or using HeaderTemplate.

The main content can be set using Text or ContentTemplate.

It's not required to provide both header and content, but at least one is needed.

Showing and hiding the toast can be using the IsDisplayed property.

<bs:Toast IsDisplayed="{value: Displayed}" HeaderText="Header" >
    <ContentTemplate>
        Content
    </ContentTemplate>
</bs:Toast>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace DotvvmWeb.Views.Docs.Controls.bootstrap.Toast.sample1
{
    public class ViewModel
    {
        public bool Displayed { get; set; } = true;
    }
}

Sample 2: Animation

The default animation used by Toast during showing and hiding is fade.

This can be changed using the Animation property.

<bs:Toast IsDisplayed="{value: Displayed}" Text="Content" Animation="None" />
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace DotvvmWeb.Views.Docs.Controls.bootstrap.ModalDialog.sample2
{
    public class ViewModel
    {
        public bool Displayed { get; set; } = true;
    }
}

Sample 3: Hiding

The default way for hiding Toast is the CloseButton which is automatically created in header.

You can remove the default CloseButton by setting AddCloseButton to false.

An alternative way for hiding the Toast is by setting the AutoHideDelay property. The delay is in seconds.

<bs:Toast IsDisplayed="{value: Displayed}" Text="Content" AutoHideDelay="3" AddCloseButton="false" />

<bs:Button Text="Show / Hide with delay" Click="{staticCommand: Displayed = !Displayed}" />
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace DotvvmWeb.Views.Docs.Controls.bootstrap.ModalDialog.sample2
{
    public class ViewModel
    {
        public bool Displayed { get; set; } = false;
    }
}

Sample 4: Callbacks

You can use OnShow and OnHide commands to perform some actions when the toast changes its state.

<bs:Toast IsDisplayed="{value: Displayed}" OnShow="{command: Shown()}" OnHide="{command: Hidden()}">
    <HeaderTemplate>
        Header
    </HeaderTemplate>
    <ContentTemplate>
        Content
    </ContentTemplate>
</bs:Toast>

<bs:Button Text="Show" Click="{staticCommand: Displayed = true}" />

<pre>{{value: Log}}</pre>
public class ViewModel
{
    public bool Displayed { get; set; } = false;

    public string Log { get; set; }

    public void Shown()
    {
        Log += "shown\r\n";
    }

    public void Hidden()
    {
        Log += "hidden\r\n";
    }
}

Properties

Name Type Description Notes Default Value
property icon AddCloseButton Boolean Gets or sets whether the close button will be added to the header.
attribute
inner element
static value
bindable
default
 True
property icon Animation ToastAnimation Gets or sets which animation will be used. Animation can be also disable by setting animation to None.
attribute
inner element
static value
bindable
default
 Fade
property icon AutoHideDelay Double? Gets or sets how many seconds it will take before the toast closes. When set to null than the toast will never close automatically.
attribute
inner element
static value
bindable
default
 null
property icon ContentTemplate ITemplate Gets or sets the content of the toast.
attribute
inner element
static value
bindable
default
 null
property icon HeaderTemplate ITemplate Gets or sets the content of the header.
attribute
inner element
static value
bindable
default
 null
property icon HeaderText String Gets or sets the header text.
attribute
inner element
static value
bindable
default
 null
property icon IsDisplayed Boolean Gets or sets whether the Toast is displayed.
attribute
inner element
static value
bindable
default
 False
property icon Text String Gets or sets the inner text of the toast.
attribute
inner element
static value
bindable
default
 null

Events

Name Type Description
event icon OnHide Command Triggers when the Toast is hidden.
event icon OnShow Command Triggers when the Toast is shown.

HTML produced by the control

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