TBMM/GCMM/DialogUtils.cs

using System.Windows.Forms;

namespace GCMM
{
    public static class DialogUtils
    {
        public static void ShowInfo(string message, string title) =>
            MessageBox.Show(message, title, MessageBoxButtons.OK, MessageBoxIcon.Information);

        public static void ShowError(string message, string title) =>
            MessageBox.Show(message, title, MessageBoxButtons.OK, MessageBoxIcon.Error);

        public static void ShowWarning(string message, string title) =>
            MessageBox.Show(message, title, MessageBoxButtons.OK, MessageBoxIcon.Warning);

        public static bool ShowYesNoQuestion(string message, string title) =>
            MessageBox.Show(message, title, MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes;
    }
}