private void Insert(CategoryUi categoryUi)
        {
            try
            {
                //
                sqlConnection.Open();

                commandString = @"INSERT INTO CategoryUi (Name) VALUES ('" + categoryUi.Name + "')";
                sqlCommand    = new SqlCommand(commandString, sqlConnection);

                int isExecuted;
                isExecuted = sqlCommand.ExecuteNonQuery();

                if (isExecuted > 0)
                {
                    MessageBox.Show("Saved!!");
                }
                else
                {
                    MessageBox.Show("Not Saved!!");
                }

                //
                sqlConnection.Close();
            }

            catch (Exception exception)
            {
                MessageBox.Show(exception.Message);
            }
        }
        private void SaveButton_Click(object sender, EventArgs e)
        {
            CategoryUi categoryUi = new CategoryUi();

            categoryUi.Name = CategorySetupTextBox.Text;
            Insert(categoryUi);
        }
        private void CategoryUi_Load(object sender, EventArgs e)
        {
            CategoryUi categoryUi = new CategoryUi();

            categoryUi.Name = CategorySetupTextBox.Text;

            Show(categoryUi);
        }
        private void Show(CategoryUi categoryUi)
        {
            sqlConnection.Open();

            //
            commandString = @"SELECT * FROM CategoryUi";
            sqlCommand    = new SqlCommand(commandString, sqlConnection);

            //
            SqlDataAdapter sqlDataAdapter = new SqlDataAdapter(sqlCommand);
            DataTable      dataTable      = new DataTable();

            sqlDataAdapter.Fill(dataTable);

            if (dataTable.Rows.Count > 0)
            {
                CategorySetupDataGridView.DataSource = dataTable;
            }
            //
            sqlConnection.Close();
        }
        private void button1_Click(object sender, EventArgs e)
        {
            CategoryUi categorySetupUi = new CategoryUi();

            categorySetupUi.Show();
        }