XAMARIN: CS8370 Error for Database Query code

Haydn Parsons 0

Hi, I'm stuck with some syntax, I'm getting the error code CS8370 (which i believe is just outdated syntax being used) ill post a screenshot of the error, this is the line of code It pulling the error at, Its just a simple query to check if login email and password is in the database

var myquery = db.Table<regUserData>().Where(u => u.Email.Equals(EntryUserEmail.Text) && u.Password.Equals(EntryUserPassword.Text)).FirstOrDefault;

Screenshot 2023-04-01 171234.png Thanks for any help in advance :)

[Text of error edited in for clarity]

CS8370: Feature 'inferred delegate type' is not available in C# 7.3. Please use language version 10.0 or later

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 33,186 Reputation points Microsoft Vendor

2023-04-03T03:31:51.0033333+00:00
From the screenshot, the error seams related to String.Equals Method. I tried to modify the query statement in official sample, it works. And you can try u.Email==EntryUserEmail.Text to determine if the error is related to the Equals method. Besides, may I ask on which platform you meet this error? What's the detailed VS version, Xamarin.Forms version, .NET version? or do you specify the language version?

public Task<TodoItem> GetItemAsync(int id) { return Database.Table<TodoItem>().Where(i => i.Notes.Equals("111") && i.Name.Equals("1")).FirstOrDefaultAsync(); }
Haydn Parsons 0 Reputation points

2023-04-03T18:06:24.98+00:00

I've got language version set to latest in .csproj I'm now getting the error "The delegate type could not be inferred" I've googled this and can't seem to find a solution.
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 33,186 Reputation points Microsoft Vendor

2023-04-04T05:06:31.9333333+00:00

Would you mind sharing more code snippets? On which method did you call the myquery?

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XAMARIN: CS8370 Error for Database Query code

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