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blazor_c3js_sparklines
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| window.CreateChart = (params) => { | |
| var chart = c3.generate({ | |
| bindto: '.' + params.uid, | |
| data: { | |
| x: 'x', | |
| columns: [ | |
| ['x'].concat(params.x), | |
| ['sample'].concat(params.y) | |
| ] | |
| }, | |
| legend: {show: false}, | |
| tooltip:{show:false}, | |
| axis: { x: {show:false}, y: {show:false} }, | |
| size: {height:30, width:50}, | |
| point: {show: false} | |
| }); | |
| } |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <meta name="viewport" content="width=device-width" /> | |
| <title>c3js_sparklines</title> | |
| <base href="/" /> | |
| <link href="css/bootstrap/bootstrap.min.css" rel="stylesheet" /> | |
| <link href="css/site.css" rel="stylesheet" /> | |
| <!-- Load c3.css --> | |
| <link href="https://cdnjs.cloudflare.com/ajax/libs/c3/0.7.1/c3.min.css" rel="stylesheet"> | |
| <!-- Load d3.js and c3.js --> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.9.2/d3.min.js" charset="utf-8"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/c3/0.7.1/c3.min.js"></script> | |
| </head> | |
| <body> | |
| <app>Loading...</app> | |
| <script src="helper.js"></script> | |
| <script src="_framework/blazor.webassembly.js"></script> | |
| </body> | |
| </html> |
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| @page "/" | |
| @using System.Collections.Generic | |
| @inject IJSRuntime JsRuntime; | |
| <h1>c3js sparklines</h1> | |
| @if (records == null) | |
| { | |
| <p><em>Loading...</em></p> | |
| } | |
| else | |
| { | |
| <ul> | |
| @foreach (var record in records) | |
| { | |
| <li>@record.uid -- <span class=@record.uid></span></li> | |
| } | |
| </ul> | |
| } | |
| @functions{ | |
| IList<UserRecord> records = new List<UserRecord>(); | |
| protected override async Task OnInitAsync() | |
| { | |
| IList<MyItem> items = new List<MyItem>(); | |
| Random rnd = new Random(); | |
| for (var i = 0; i < 200; i++) { | |
| int x = rnd.Next(10, 200); | |
| int y = rnd.Next(10, 200); | |
| int rand_id = rnd.Next(10, 20); | |
| items.Add(new MyItem {uid="U" + rand_id, x=x, y=y}); | |
| } | |
| // agg | |
| records = items.Aggregate(new List<UserRecord>(), (acc, i) => { | |
| var rec = acc.Where(a => a.uid == i.uid); | |
| if (rec.Any()) { | |
| rec.First().x.Add(i.x); | |
| rec.First().y.Add(i.y); | |
| } else { | |
| acc.Add(new UserRecord { | |
| uid = i.uid, | |
| x = new List<int> { i.x }, | |
| y = new List<int> { i.y }, | |
| }); | |
| } | |
| return acc; | |
| }); | |
| } | |
| protected override async Task OnAfterRenderAsync() { | |
| foreach (var r in records) { | |
| await JsRuntime.InvokeAsync<Object>("CreateChart",new { uid=r.uid, x=r.x, y=r.y }); | |
| } | |
| } | |
| struct MyItem { | |
| public string uid; | |
| public int x; | |
| public int y; | |
| } | |
| struct UserRecord { | |
| public string uid; | |
| public List<int> x; | |
| public List<int> y; | |
| } | |
| } |
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