C#•5mo ago

Visual Studio 2022 winforms problem

Eror: CS1061

private void btn_Giris_Click(object sender, EventArgs e)
{
    if (!string.IsNullOrEmpty(txt_KullaniciAdi.Text))
    {

        using (WisdifyData data = new WisdifyData())
        {
            Kullanici kullanici = data.kullaniciAl(txt_KullaniciAdi.Text);

            if (kullanici != null)
            {
                Menu me = new Menu(kullanici); // ### Problemm CS0144
                me.Show();                      // ### Problemm CS1061

            }
            else
            {
                MessageBox.Show("Kullanıcı adına sahip bir kişi bulunamadı.", "Bulunamadı", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
    }
    else
    {
        MessageBox.Show("Lütfen boş bırakmayınız.","Uyarı",MessageBoxButtons.OK,MessageBoxIcon.Warning);
    }
}

private void btn_Giris_Click(object sender, EventArgs e)
{
    if (!string.IsNullOrEmpty(txt_KullaniciAdi.Text))
    {

        using (WisdifyData data = new WisdifyData())
        {
            Kullanici kullanici = data.kullaniciAl(txt_KullaniciAdi.Text);

            if (kullanici != null)
            {
                Menu me = new Menu(kullanici); // ### Problemm CS0144
                me.Show();                      // ### Problemm CS1061

            }
            else
            {
                MessageBox.Show("Kullanıcı adına sahip bir kişi bulunamadı.", "Bulunamadı", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
    }
    else
    {
        MessageBox.Show("Lütfen boş bırakmayınız.","Uyarı",MessageBoxButtons.OK,MessageBoxIcon.Warning);
    }
}

I wrote the error code numbers in the code, I couldn't find a solution

14 Replies

Angius•5mo ago

I don't remember all error codes by hearth. I don't think anybody does, actually So what are CS0144 and CS1061?

5124•5mo ago

Excuse me, you wouldn't understand it even if I threw it because my IDE is in Turkish, now I'm sending the official error message: CS1061 : 'type' does not contain a definition for 'name' and no accessible extension method 'name' accepting a first argument of type 'type' could be found (are you missing a using directive or an assembly reference?). CS0144 : Cannot create an instance of the abstract class or interface 'interface'

Angius•5mo ago

They seem pretty obvious Menu is an abstract class or an interface, and those cannot be instantiated And whatever Menu is, it has no method named Show()

5124•5mo ago

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Wisdify.Sınıflar;

namespace Wisdify.Formlar
{
    public partial class Menu : Form
    {
        Kullanici kullanici;
        public Menu( Kullanici _kullanici)
        {
            InitializeComponent();
            kullanici = _kullanici;
        }

        private void Menu_Load(object sender, EventArgs e)
        {

        }
    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Wisdify.Sınıflar;

namespace Wisdify.Formlar
{
    public partial class Menu : Form
    {
        Kullanici kullanici;
        public Menu( Kullanici _kullanici)
        {
            InitializeComponent();
            kullanici = _kullanici;
        }

        private void Menu_Load(object sender, EventArgs e)
        {

        }
    }
}

menu.cs (form) I didn't understand the menu I created as a Windows form and I didn't understand why the error was caused by everything is correct from my point of view but I don't know I must have a small mistake somewhere, when I opened another form for the experiment, it worked fine before I took any form settings, unfortunately the errors did not leave me when I came back to this project

Angius•5mo ago

Why is it partial? It could be that another partial Menu class exists, and this one is abstract So in total you get an abstract Menu class

MODiX•5mo ago

Angius

REPL Result: Failure

// This hides somewhere in your project
abstract partial class Menu { }

// This is what you showed above
partial class Menu { }

// Which makes the whole thing abstract and thus, impossible to instantiate
new Menu();

// This hides somewhere in your project
abstract partial class Menu { }

// This is what you showed above
partial class Menu { }

// Which makes the whole thing abstract and thus, impossible to instantiate
new Menu();

Exception: CompilationErrorException

- Cannot create an instance of the abstract type or interface 'Menu'

- Cannot create an instance of the abstract type or interface 'Menu'

Compile: 233.367ms | Execution: 0.000ms | React with ❌ to remove this embed.

5124•5mo ago

@ZZZZZZZZZZZZZZZZZZZZZZZZZ Shouldn't it be partial, it's a winform, and as far as I know, all forms are partial.

Angius•5mo ago

Are they? Never worked much with Winforms so maybe

5124•5mo ago

Yes, they are all partisan

Angius•5mo ago

No idea, then

5124•5mo ago

😦 My friend, I solved it, at the end of 2 days, it turns out that with the new update, there is a feature called Menu, a class called Visual A Menu has come, so the two overlap @ZZZZZZZZZZZZZZZZZZZZZZZZZ

Angius•5mo ago

Ah, makes sense Glad you solved it!

abdulrauf6514•4mo ago

how to upgrade visual studio 2017 to 2022 i have 2022 in my other laptop but in this machine i have windows 10 and vs 2017 version.

Angius•4mo ago

Just uninstall 2017 and install 2022 Or just install 2022, they can exist besides eachother

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Visual Studio 2022 winforms problem