Converting string seperated by space to array in Blazor web server application

Question

I've been trying to solve this for the past 5 hours, but couldn't find any solution - please help me solve this problem.

This is my code:

@foreach (string title in titleList)  
{
    <span> @title</span>
}

@code {
    [Parameter]
    public string theTitle { get; set; }

    public static string[] titleList { get; set; } = theTitle.Split(", "); 
}

I keep getting this error:

A field initializer cannot reference the non-static field, method, or property 'RelatedTopics.theTitle'

After I change to this:

[Parameter]
public static string theTitle { get; set; }

it still doesn't work in my application. Please help me with a solution for this.

Answer 1

You can't use one instance variable to initialize another one using a field initializer. Instead put that code into OnParametersSet lifecycle method.

@foreach (string title in titleList)
{
    <span> @title</span>           
}

@code{
    [Parameter]
    public string theTitle { get; set; }

    private string[] titleList = Array.Empty<string>();
   
    protected override void OnParametersSet()
    {  
        if (!string.IsNullOrEmpty(theTitle))
        {
            titleList = theTitle.Split(", ");
        }
    }
}

If your string is space separated you should do theTitle.Split(" "); instead of theTitle.Split(", ");