如何在JS中传递C#变量

Question

我想创建一个图表并比较两个值，我使用ChartJs。。现在的问题是如何将Binded结果变量传递给js，我的意思是如何从图表中删除静态值并提供c值。。

我的blazor变量是PreMoney Value&PostMoney价值和我应该如何通过PreMoney价值&在数据中公布货币价值：[]

window.chartJs = () => {
var ctx = document.getElementById('myChart');
var myChart = new Chart(ctx, {
type: 'bar',
data: {
labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'],
datasets: [{
label: '# of Votes',
**data: [12, 19, 3, 5, 2, 3],**
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
'rgba(255, 159, 64, 0.2)'
],
borderColor: [
'rgba(255, 99, 132, 1)',
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(153, 102, 255, 1)',
'rgba(255, 159, 64, 1)'
],
borderWidth: 1
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero: true
}
}]
}
}
});
var myVentureChart = new Chart(ctx, {
type: 'bar',
data: {
labels: ['PreMoney Value', 'PostMoney Value'],
datasets: [{
label: '# of Votes',
data: [12, 19],
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(54, 162, 235, 0.2)'

],
borderColor: [
'rgba(255, 99, 132, 1)',
'rgba(255, 159, 64, 1)'
],
borderWidth: 1
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero: true
}
}]
}
}
});
};

Answer 1

在Blazor页面中：

@inject IJSRuntime jsRunTime;
<div id="chartdiv"></div>
<button @onclick="CreateChart">Create Chart</button>
@code {
private async Task CreateChart()
{
await jsRunTime.InvokeVoidAsync("YourJavaScriptFunction", preMoney,  postMoney);
}
}

在您的JavaScript中：

function YourJavaScriptFunction(preMoney, postMoney) {
...
}