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Jimmy Engström 2023-02-17 15:28:17 +01:00
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13
Chapter13/MyBlog/BlazorWebAssembly/Client/JSInteropSamples/JSToStaticNET.razor Normal file
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@page "/jstostaticnetwasm"
@using System.Runtime.InteropServices.JavaScript
<h3>This is a demo how to call .NET from JavaScript</h3>
<button @onclick="ShowMessage">Show alert with message</button>
@code {
protected override async Task OnInitializedAsync()
{
await JSHost.ImportAsync("jstonet", "../JSInteropSamples/JSToStaticNET.razor.js");
}
}

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Chapter13/MyBlog/BlazorWebAssembly/Client/JSInteropSamples/JSToStaticNET.razor.cs Normal file
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using System.Runtime.InteropServices.JavaScript;
using System.Runtime.Versioning;
namespace BlazorWebAssembly.Client.JSInteropSamples;
[SupportedOSPlatform("browser")]
public partial class JSToStaticNET
{
[JSExport]
internal static string GetAMessageFromNET()
{
return "This is a message from .NET";
}
[JSImport("showMessage", "jstonet")]
internal static partial void ShowMessage();
}

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Chapter13/MyBlog/BlazorWebAssembly/Client/JSInteropSamples/JSToStaticNET.razor.js Normal file
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export async function setMessage() {
const { getAssemblyExports } = await globalThis.getDotnetRuntime(0);
var exports = await getAssemblyExports("BlazorWebAssembly.Client.dll");
alert(exports.BlazorWebAssembly.Client.JSInteropSamples.JSToStaticNET.GetAMessageFromNET());
}
export async function showMessage() {
await setMessage();
}

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Chapter13/MyBlog/BlazorWebAssembly/Client/JSInteropSamples/NetToJS.razor Normal file
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@page "/nettojswasm"
@using System.Runtime.InteropServices.JavaScript
<h3>This is a demo how to call JavaScript from .NET</h3>
<button @onclick="ShowAlert">Show Alert</button>
@code {
protected async void ShowAlert()
{
ShowAlert("Hello from .NET");
}
protected override async Task OnInitializedAsync()
{
await JSHost.ImportAsync("nettojs", "../JSInteropSamples/NetToJS.razor.js");
}
}

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Chapter13/MyBlog/BlazorWebAssembly/Client/JSInteropSamples/NetToJS.razor.cs Normal file
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using System.Runtime.InteropServices.JavaScript;
namespace BlazorWebAssembly.Client.JSInteropSamples;
public partial class NetToJS
{
[JSImport("showAlert", "nettojs")]
internal static partial string ShowAlert(string message);
}

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Chapter13/MyBlog/BlazorWebAssembly/Client/JSInteropSamples/NetToJS.razor.js Normal file
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export function showAlert(message) {
return alert(message);
}