Confirm box for submission

Question

I have a form with some textboxes and a button . on button press , a new form opens as a showdialog() which has two buttons yes or no . Now i want to code in such a way in which if the user presses yes the data should be submitted to the database and the new form and the mainform both should close , but if he presses no , only the new form should close .

Answer 1

DialogResult property of clicked button set to result from ShowDialog.

namespace WinFormsApp1
{
    using System;
    using System.Windows.Forms;

    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Form subform = new Form() { Width = 200, Height = 100, FormBorderStyle = FormBorderStyle.FixedToolWindow };
            {
                Button yesButton = new Button() { Text = "&Yes" };
                yesButton.DialogResult = DialogResult.Yes;

                Button noButton = new Button() { Text = "&No" };
                noButton.DialogResult = DialogResult.No;
                noButton.Left = yesButton.Width + 5;

                subform.Controls.Add(yesButton);
                subform.Controls.Add(noButton);
            }


            DialogResult result = subform.ShowDialog();
            switch (result)
            {
            case DialogResult.Yes:
                // your database code here

                this.Close();
                break;
            case DialogResult.No:
                break;
            default:
                break;
            }
        }
    }
}

Answer 2

Consider the following class and method Question. Full source.

public class Dialogs
{
    public static void Question(Control owner, string heading, Action yesAction, Action noAction)
    {

        TaskDialogButton yesButton = new("Yes") { Tag = DialogResult.Yes };
        TaskDialogButton noButton = new("No") { Tag = DialogResult.No };

        var buttons = new TaskDialogButtonCollection
        {
            yesButton,
            noButton
        };


        TaskDialogPage page = new()
        {
            Caption = "Question",
            SizeToContent = true,
            Heading = heading,
            Icon = new TaskDialogIcon(Properties.Resources.QuestionBlue),
            Buttons = buttons
        };

        var result = TaskDialog.ShowDialog(owner, page);

        if ((DialogResult)result.Tag! == DialogResult.Yes)
        {
            yesAction?.Invoke();
        }
        else
        {
            noAction?.Invoke();
        }

    }

}

Usage in a form. Two Actions and a button click to call the dialog above which executes the proper action dependent on the button clicked.

public void DataOperations()
{
    // do data operations
}
public void Terminate()
{
    // here we are in the main form so Close terminates the app
    Close();
}
private void ActionQuestionButton_Click(object sender, EventArgs e)
{
    Dialogs.Question(this, "Ask something", DataOperations, Terminate);
}

Screenshot