Bootstrap Blazor enterprise-level UI component library

Enterprise-level component library based on Bootstrap and Blazor

InputNumber

Only standard numeric values are allowed, and custom ranges and other advanced features are supported

Basic usage

The Numer numeric type displays a text box, and the mobile side automatically pops up the numeric keypad

Demo

<div class="demo-inputnumber">
    <BootstrapInputNumber Value="@BindValue" IsSelectAllTextOnFocus="true" />
</div>

<style>
    .demo-inputnumber {
        width: 160px;
    }

        .demo-inputnumber > .form-control {
            width: inherit;
        }
</style>

@code {
    /// <summary>
    /// BindValue
    /// </summary>
    public int BindValue { get; set; } = 5;
}

Interval limit usage

Set the Max Min to control the range of value intervals 1-10

Demo

<div class="demo-inputnumber">
    <BootstrapInputNumber Value="@BindValue" Max="10" Min="1" />
</div>

<style>
    .demo-inputnumber {
        width: 160px;
    }

        .demo-inputnumber > .form-control {
            width: inherit;
        }
</style>

@code {
    /// <summary>
    /// BindValue
    /// </summary>
    public int BindValue { get; set; } = 5;
}

Control button

Set the ShowButton parameter to control whether the buttons are displayed to increase or decrease

Demo

This example sets a maximum of 10 minimum value of 0

<div class="demo-inputnumber">
    <BootstrapInputNumber ShowButton="true" Value="@BindValue" Max="10" Min="0" />
</div>

<style>
    .demo-inputnumber {
        width: 160px;
    }

        .demo-inputnumber > .form-control {
            width: inherit;
        }
</style>

@code {
    /// <summary>
    /// BindValue
    /// </summary>
    public int BindValue { get; set; } = 5;
}

Custom steps

Set the Step parameter to control the increase or decrease in steps

Demo

The step defaults to 1

The step defaults to 10

The step defaults to 0.1

@inject IStringLocalizer<InputNumbersStep> Localizer

<div>
    <div class="demo-inputnumber">
        <p>@Localizer["InputNumbersStep1"]</p>
        <BootstrapInputNumber ShowButton="true" Value="5" Color="Color.Danger" />
    </div>
    <div class="demo-inputnumber mt-3">
        <p>@Localizer["InputNumbersStep10"]</p>
        <BootstrapInputNumber ShowButton="true" Value="10" Step="10" Color="Color.Success" />
    </div>
    <div class="demo-inputnumber mt-3">
        <p>@Localizer["InputNumbersStep0.1"]</p>
        <BootstrapInputNumber ShowButton="true" Value="0.5" Step="0.1" Formatter="@Formatter" Color="Color.Warning" />
    </div>
</div>

<style>
    .demo-inputnumber {
        width: 160px;
    }

        .demo-inputnumber > .form-control {
            width: inherit;
        }
</style>

@code {
    private static string Formatter(double val) => val.ToString("0.0");
}

Color

Set the Color parameter to customize the button color

Demo

Show button

No button

@inject IStringLocalizer<InputNumbersColor> Localizer

<p>@Localizer["InputNumbersColorDescription1"]</p>
<div class="row g-3">
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber ShowButton="true" Value="10" Color="Color.None" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber ShowButton="true" Value="10" Color="Color.Primary" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber ShowButton="true" Value="10" Color="Color.Success" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber ShowButton="true" Value="10" Color="Color.Info" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber ShowButton="true" Value="10" Color="Color.Warning" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber ShowButton="true" Value="10" Color="Color.Danger" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber ShowButton="true" Value="10" Color="Color.Dark" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber ShowButton="true" Value="10" Color="Color.Secondary" />
        </div>
    </div>
</div>
<p class="mt-3">@Localizer["InputNumbersColorDescription2"]</p>
<div class="row g-3">
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="10" Color="Color.None" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="10" Color="Color.Primary" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="10" Color="Color.Success" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="10" Color="Color.Info" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="10" Color="Color.Warning" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="@BindFloatValue" Color="Color.Danger" FormatString="#.##" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="@BindDoubleValue" Color="Color.Dark" FormatString="#.##" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="@BindDecimalValue" Color="Color.Secondary" FormatString="#.##" />
        </div>
    </div>
</div>

<style>
    .demo-inputnumber {
        width: 160px;
    }

        .demo-inputnumber > .form-control {
            width: inherit;
        }
</style>

@code {
    /// <summary>
    /// BindDoubleValue
    /// </summary>
    public double BindDoubleValue { get; set; } = 10;

    /// <summary>
    /// BindFloatValue
    /// </summary>
    public float BindFloatValue { get; set; } = 10;

    /// <summary>
    /// BindDecimalValue
    /// </summary>
    public decimal BindDecimalValue { get; set; } = 10;
}

Data type

This component uses generic support the underlying data type int short long float double decimal

Demo

Short

Int

Long

Float

Double

Decimal

<div class="row g-3">
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="@BindShortValue" DisplayText="Short" ShowLabel="true" ShowButton="true" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="@BindValue" DisplayText="Int" ShowLabel="true" ShowButton="true" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="@BindLongValue" DisplayText="Long" ShowLabel="true" ShowButton="true" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="@BindFloatValue" DisplayText="Float" ShowLabel="true" ShowButton="true" FormatString="#.##" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="@BindDoubleValue" DisplayText="Double" ShowLabel="true" ShowButton="true" FormatString="#.##" />
        </div>
    </div>
    <div class="col-12 col-sm-6">
        <div class="demo-inputnumber">
            <BootstrapInputNumber Value="@BindDecimalValue" DisplayText="Decimal" ShowLabel="true" ShowButton="true" FormatString="#.##" />
        </div>
    </div>
</div>

<style>
    .demo-inputnumber {
        width: 160px;
    }

        .demo-inputnumber > .form-control {
            width: inherit;
        }
</style>

@code {
    /// <summary>
    /// BindValue
    /// </summary>
    public int BindValue { get; set; } = 5;

    /// <summary>
    /// BindLongValue
    /// </summary>
    public long BindLongValue { get; set; } = 10;

    /// <summary>
    /// BindShortValue
    /// </summary>
    public short BindShortValue { get; set; } = 10;

    /// <summary>
    /// BindDoubleValue
    /// </summary>
    public double BindDoubleValue { get; set; } = 10;

    /// <summary>
    /// BindFloatValue
    /// </summary>
    public float BindFloatValue { get; set; } = 10;

    /// <summary>
    /// BindDecimalValue
    /// </summary>
    public decimal BindDecimalValue { get; set; } = 10;
}

Disable

When you set the IsDisabled property value to true, the component suppresses input

Demo

<div class="row g-3">
    <div class="col-12 col-sm-6">
        <BootstrapInputNumber Value="10" IsDisabled="true" />
    </div>
    <div class="col-12 col-sm-6">
        <BootstrapInputNumber Value="20" IsDisabled="true" ShowButton="true" />
    </div>
</div>

<style>
    .demo-inputnumber {
        width: 160px;
    }

        .demo-inputnumber > .form-control {
            width: inherit;
        }
</style>

The label is displayed

When a component binds in both directions, it automatically determines whether label text is displayed based on the conditions

Demo

The pre-label explicit rules are consistent with the BootstrapInput component of the > of the [The portal]

Bidirectional binding displays labels

Bidirectional bindings do not display labels

Custom DisplayText

Customization

@inject IStringLocalizer<InputNumbersValidateForm> Localizer

<div>
    <Divider Text="@Localizer["InputNumbersValidateFormDivider1"]" Alignment="Alignment.Left" style="margin: 2rem 0;"></Divider>
    <ValidateForm Model="@Model">
        <BootstrapInputNumber @bind-Value="@Model.Count" ShowLabel="true" />
    </ValidateForm>
    <Divider Text="@Localizer["InputNumbersValidateFormDivider2"]" Alignment="Alignment.Left" style="margin: 2rem 0;" />
    <BootstrapInputNumber @bind-Value="@Model.Count" ShowLabel="false" />
    <Divider Text="@Localizer["InputNumbersValidateFormDivider3"]" Alignment="Alignment.Left" style="margin: 2rem 0;"></Divider>
    <BootstrapInputNumber @bind-Value="@Model.Count" ShowLabel="true" DisplayText="@Localizer["InputNumbersValidateFormInputText"]" />
</div>

<style>
    .demo-inputnumber {
        width: 160px;
    }

        .demo-inputnumber > .form-control {
            width: inherit;
        }
</style>

@code {

    /// <summary>
    ///
    /// </summary>
    public int BindValue { get; set; } = 5;

    /// <summary>
    ///
    /// </summary>
    public sbyte BindSByteValue { get; set; } = 10;

    /// <summary>
    ///
    /// </summary>
    public byte BindByteValue { get; set; } = 10;

    /// <summary>
    ///
    /// </summary>
    public long BindLongValue { get; set; } = 10;

    /// <summary>
    ///
    /// </summary>
    public short BindShortValue { get; set; } = 10;

    /// <summary>
    ///
    /// </summary>
    public double BindDoubleValue { get; set; } = 10;

    /// <summary>
    ///
    /// </summary>
    public float BindFloatValue { get; set; } = 10;

    /// <summary>
    ///
    /// </summary>
    public decimal BindDecimalValue { get; set; } = 10;

    private Foo Model { get; set; } = new Foo() { Count = 10 };
}

Attributes

B station related video link

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InputNumber

Only standard numeric values are allowed, and custom ranges and other advanced features are supported

Demo

Demo

Demo

Demo

Demo

Demo

Demo

Demo

Attributes

Bootstrap Blazor Component library updated to 7.4.4-beta01