[英]How to pass data to constructor from component in Blazor
我从 razor 文件中调用组件,如下所示:
<BaseTable></BaseTable>
但请求异常,因为组件没有无参数构造函数:
public class BaseTable:ComponentBase
{
private readonly HttpClient _httpClient;
public BaseTable(HttpClient httpClient)
{
_httpClient = httpClient;
}
}
如何从.razor 页面或调用方组件访问组件的 ctor?
在这种情况下,我建议您在 Blazor 组件顶部注入 HttpClient:
@inject HttpClient Http
然后在代码中你可以随意使用它
@code{
private IService service;
protected override async Task OnInitializedAsync()
{
service = new Service(Http);
}
}
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