Rating

in namespace DotVVM.BusinessPack.Controls

Renders a horizontal set of points representing a rating. If enabled, the user can select one of these points to set the rating.

Usage & Scenarios

Displays several stars (or any other symbols) and lets the user to select a some of them.

Sample 1: Basic Usage

The Value property represents a number of stars selected by the user.

The MaxValue specifies the number of stars to be displayed.

page.dothtml
ViewModel.cs

<bp:Rating Value="{value: Rating}"
           MaxValue="5" />

using DotVVM.Framework.ViewModel;

namespace DotvvmWeb.Views.Docs.Controls.businesspack.Rating.sample1
{
    public class ViewModel : DotvvmViewModelBase
    {
        public double Rating { get; set; } = 4.5;
    }
}

Sample 2: Configuration

The AllowHalfPoints allows to select 1/2 of a star to be able to get more precise rating. By default, the user can select only the entire star.

The AllowPreviewOnHover property can be used to disable the hover effect that indicates which stars will be selected on click.

page.dothtml
ViewModel.cs

<bp:Rating Value="{value: Rating}"
           MaxValue="5"
           AllowHalfPoints="false"
           AllowPreviewOnHover="false" />

using DotVVM.Framework.ViewModel;

namespace DotvvmWeb.Views.Docs.Controls.businesspack.Rating.sample2
{
    public class ViewModel : DotvvmViewModelBase
    {
        public double Rating { get; set; } = 4;
    }
}

Sample 3: Changed Event

The Changed property specifies a command in the viewmodel that is triggered whenever the user changes the rating.

page.dothtml
ViewModel.cs

<bp:Rating Value="{value: Rating}"
           MaxValue="5"
           Changed="{command: RatingChanged()}" />

<p>Rating has changed {{value: ChangeCount}} times.</p>

using DotVVM.Framework.ViewModel;

namespace DotvvmWeb.Views.Docs.Controls.businesspack.Rating.sample3
{
    public class ViewModel : DotvvmViewModelBase
    {
        public double Rating { get; set; } = 4.5;
        public int ChangeCount { get; set; }

        public void RatingChanged()
        {
            ChangeCount++;
        }
    }
}

Sample 4: Custom Icons

The icons in the control can be customized using the following properties:

EmptyPointIconCssClass represents an icon for a start that is not selected. The default value is fa fa-star (FontAwesome).
HalfPointIconCssClass represents an icon for a start that is partially selected. The default value is fa fa-star-half-empty (FontAwesome).
FullPointIconCssClass represents an icon for a start that is fully selected. The default value is fa fa-star0 (FontAwesome).

page.dothtml
ViewModel.cs

<bp:Rating Value="{value: Rating}"
           MaxValue="5"
           EmptyPointIconCssClass="empty"
           HalfPointIconCssClass="half"
           FullPointIconCssClass="full" />

using DotVVM.Framework.ViewModel;

namespace DotvvmWeb.Views.Docs.Controls.businesspack.Rating.sample4
{
    public class ViewModel : DotvvmViewModelBase
    {
        public double Rating { get; set; } = 3.5;
    }
}

Properties

Name	Type	Description	Notes	Default Value
AllowHalfPoints	Boolean	Gets or sets whether to display half points and allow the user to select half point values.	attribute inner element static value bindable default	True
AllowPreviewOnHover	Boolean	Gets or sets whether to display a preview of the selected value when user hovers over the control.	attribute inner element static value bindable default	True
Attributes	Dictionary<String,Object>		attribute inner element static value bindable default	null
ClientIDMode	ClientIDMode	Gets or sets the client ID generation algorithm.	attribute inner element static value bindable default	Static
DataContext	Object	Gets or sets a data context for the control and its children. All value and command bindings are evaluated in context of this value.	attribute inner element static value bindable default	null
EmptyPointIconCssClass	String	Gets or sets the CSS class used for empty points.	attribute inner element static value bindable default	fa fa-star-o
Enabled	Boolean	Gets or sets whether the control responds to user actions.	attribute inner element static value bindable default	True
FullPointIconCssClass	String	Gets or sets the CSS class used for full points.	attribute inner element static value bindable default	fa fa-star
HalfPointIconCssClass	String	Gets or sets the CSS class used for half points.	attribute inner element static value bindable default	fa fa-star-half-empty
ID	String	Gets or sets the unique control ID.	attribute inner element static value bindable default	null
InnerText	String	Gets or sets the inner text of the HTML element.	attribute inner element static value bindable default	null
MaxValue	Int32	Gets or sets the maximum value that the Value can reach.	attribute inner element static value bindable default	5
Value	Double?	Gets or sets the current value of the Rating.	attribute inner element static value bindable default	null
Visible	Boolean	Gets or sets whether the control is visible.	attribute inner element static value bindable default	True

Events

	Name	Type	Description
	Changed	Command	Gets or sets the command that is called when Value changes.