Question

我正在学习dotnet核心并尝试向我正在使用的api添加运行状况检查。我添加了AspNetCore.HealthChecks.NpgSql nuget并添加到startup.cs：

services.AddHealthChecks()
   .AddNpgSql(connectionString);

但我收到错误消息：

Error   CS1503  Argument 2: cannot convert from 'MovieApp.ConnectionString' to 'string' MovieApp

我在ConfigureServices中的连接字符串是：

var connectionString = new ConnectionString(Configuration.GetConnectionString("DefaultConnection"));

使用ConnectionString.cs

namespace MovieApp
{
    public sealed class ConnectionString
    {
        public ConnectionString(string value) => Value = value;
        public string Value { get; }
    }
}

任何想法我在做什么错？

Answer 1

var x = zone[index].x, y = zone[index].y, width = zone[index].width, height = zone[index].height; if(isPointInRect(mouseInfo, {x, y, width, height}) { //perhaps if you want to make a hover color, do that here, just un-comment if you want: /*ctx.fillStyle = "#ffaaee";*/ if(mouseInfo.clicked) { ctx.fillStyle = "ff0000"; //red } } ctx.fillStyle = 'yellow'; ctx.rect(x, y, width, height); ...在传递AddNpgSql(string)类型的同时接受参数的字符串类型，尝试改用ConnectionString：

connectionString.Value

dotnet核心运行状况检查postgres连接字符串查询

1 个答案: