37 lines
1.1 KiB
C#
37 lines
1.1 KiB
C#
// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using Microsoft.Blazor.Components;
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using Microsoft.Blazor.RenderTree;
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using System.Collections.Generic;
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namespace BasicTestApp
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{
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public class KeyPressEventComponent : IComponent
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{
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private List<string> keysPressed = new List<string>();
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public void BuildRenderTree(RenderTreeBuilder builder)
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{
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builder.AddText("Type here:");
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builder.OpenElement("input");
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builder.AddAttribute("onkeypress", OnKeyPressed);
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builder.CloseElement();
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builder.OpenElement("ul");
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foreach (var key in keysPressed)
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{
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builder.OpenElement("li");
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builder.AddText(key);
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builder.CloseElement();
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}
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builder.CloseElement();
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}
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private void OnKeyPressed(UIEventArgs eventInfo)
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{
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keysPressed.Add(((UIKeyboardEventArgs)eventInfo).Key);
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}
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}
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}
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