将对象属性从 C# 函数返回到 Blazor Web 元素

Question

我试图在 C# 中初始化一个新对象，然后将新创建的对象的属性打印到<p>标记中。 我被困在如何从以下位置获取生成的对象：

<button type="button" @onclick="@(() => createSword("steel"))">

And being able to use it in my web app. 


@page "/authors"

<h3>Authors</h3>


<button type="button" @onclick="@(() => createSword("steel"))">Click me to generate a new sword</button>

<p> Current Sword: </p> <p id="generatedSword">My Sword Details here</p>

@{ <p> Hello </p>
        }

@code {

    public Object createSword(string x)
    {
        Sword testSword = new Sword(x);
        return testSword;
        
    }
    public class Sword
    {
        //Defining attributes of sword
        public int damage;
        public String statType;
        public int stat;
        public String name;

        //Defining private variables of sword

        public Sword(string typeOfSword)
        {
            if (typeOfSword == "Steel")
            {
                damage = 5;
                name = "Steel Sword";
                statType = "Strength";
                stat = 2;

            }
            if (typeOfSword == "Bone")
            {
                damage = 10;
                name = "Bone Sword";
                statType = "Strength";
                stat = 5;

            }
            if (typeOfSword == "Glowing")
            {
                damage = 20;
                name = "Glowing Sword";
                statType = "Strength";
                stat = 10;

            }

            if (typeOfSword == null)
            {
                damage = 1;
                name = "None";
                statType = "None";
                stat = 0;
            }
        }

    }

}

在这样做之前我是否必须将它分配给一个全局对象？ 我相信这可以在我创建播放器类时规避，我可以在这些字段中打印播放器数据，因为播放器对象将是一个唯一的持久对象。 想法？

Answer 1

这是否回答了您的问题（似乎太简单了）？

我已将您的剑类型更改为emun ，并将对象创建者作为静态方法添加到Sword类。

创建的对象位于私有字段generatedSword 。

@page "/"
<h3>Authors</h3>


<button type="button" @onclick="() => CreateSword(Sword.SwordType.Steel)">Click me to generate a new sword</button>

@if (generatedSword != null)
{
    <p> Current Sword: @generatedSword.name</p>
}
@{
    <p> Hello </p>
}

@code {
    private Sword generatedSword;

    private void CreateSword(Sword.SwordType typeOfSword)
    => generatedSword = Sword.NewSword(typeOfSword);

    public class Sword
    {
        //Defining attributes of sword
        public int damage;
        public String statType;
        public int stat;
        public String name;

        //Defining private variables of sword

        public Sword(SwordType typeOfSword)
        {
            if (typeOfSword == SwordType.Steel)
            {
                damage = 5;
                name = "Steel Sword";
                statType = "Strength";
                stat = 2;

            }
            if (typeOfSword == SwordType.Bone)
            {
                damage = 10;
                name = "Bone Sword";
                statType = "Strength";
                stat = 5;

            }
            if (typeOfSword == SwordType.Glowing)
            {
                damage = 20;
                name = "Glowing Sword";
                statType = "Strength";
                stat = 10;

            }

            if (typeOfSword == SwordType.None)
            {
                damage = 1;
                name = "None";
                statType = "None";
                stat = 0;
            }
        }

        public enum SwordType {None, Steel, Bone, Glowing};

        public static Sword NewSword(SwordType typeOfSword)
            => new Sword(typeOfSword);

    }

}