Error calling form screen

Question

I’m having trouble loading a menu through another screen follows my code below. What would be a possible solution, for such error?

public partial class frmMenu : Form
{
    public frmMenu()
    {
        InitializeComponent();
    }
    private void guichesToolStripMenuItem_Click(object sender, EventArgs e)
    {
        frmCadastroGuiche frm = new frmCadastroGuiche();
        frm.ShowDialog();
    }
}

Screen that should be loaded when clicking the Guiche button.

public partial class frmCadastroGuiche : Form
{
    public frmCadastroGuiche()
    {
        carregarCombos();
        carregando = true;
        carregargrid();
        carregando = false;
        InitializeComponent();
    }
    bool pularFiltro = false;
    bool carregando = false;
    public bool setDatabase(Sele.Classes.clsDatabase oDB)
    {
        try
        {
            oAtende.oDB = oDB;
            carregarCombos();
            carregando = true;
            carregargrid();
            carregando = false;
            return true;
        }
        catch (Exception)
        {
            return false;
        }
    }
    DataTable dtGuiche = new DataTable();
    public void carregarCombos()
    {
        lstTipoSenha_id.DataSource = oAtende.dtTipoSenha;
        oAtende.dtTipoSenha = oAtende.getSenhaTipo();
        lstTipoSenha_id.DisplayMember = "Tipo da Senha";
        lstTipoSenha_id.ValueMember = "id";
        lstTipoSenha_id.DataSource = oAtende.dtTipoSenha;
    }    
    private void carregargrid()
    {
        carregando = true;
        dg.CurrentCell = null;
        dg.AutoGenerateColumns = false;

        dtGuiche = oAtende.getGuiches("");
        dg.DataSource = dtGuiche.DefaultView;

        dg.CurrentCell = null;

        dg.ClearSelection();
        carregando = false;
    }
}

below this would have the codes of save and delete buttons in the fields that were passed, but I did not put because I did not find it necessary I believe that the error is not there.

Answer 1

Is there an exception happening and you’re not seeing.

The method InitializeComponents() needs to be called before any interaction with the screen components, because it is this method that creates them.

The builder should be like this

public frmCadastroGuiche()
{        
    InitializeComponent();
    carregarCombos();
    carregando = true;
    carregargrid();
    carregando = false;
}