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Customize the spin button’s up and down arrow in Blazor Numeric TextBox component

08 Apr 2021 / 1 minute to read

This section explains how to change or customize spin up and down icons. You can customize spin button icons using e-spin-up and e-spin-down classes of those buttons.

You can override the default icons of e-spin-up and e-spin-down classes using the following CSS code snippets.

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@using Syncfusion.Blazor.Inputs

<SfNumericTextBox TValue="int?" Value=10 CssClass="e-custom"></SfNumericTextBox>
    .e-numeric.e-custom .e-input-group-icon.e-spin-up:before {
        content: "\e823";
        color: rgba(0, 0, 0, 0.54);

    .e-numeric.e-custom .e-input-group-icon.e-spin-down:before {
        content: "\e934";
        color: rgba(0, 0, 0, 0.54);

The output will be as follows.

NumericTextBox Sample