Manage YouTube using C# and Youtube API 1.6

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Manager
{
    public partial class SSettings : Form
    {
        #region searchsettings

        string author = "", orderby = "", qry = "", safesearch = "", sname = "";
        int choice = 0;

        public int Choice
        {
            get { return choice; }
            set { choice = value; }
        }

        public string Sname
        {
            get { return sname; }
            set { sname = value; }
        }

        public string Safesearch
        {
            get { return safesearch; }
            set { safesearch = value; }
        }

        public string Qry
        {
            get { return qry; }
            set { qry = value; }
        }

        public string Orderby
        {
            get { return orderby; }
            set { orderby = value; }
        }

        public string Author
        {
            get { return author; }
            set { author = value; }
        }

        #endregion
        public SSettings()
        {
            InitializeComponent();
        }

        private void SSettings_Load(object sender, EventArgs e)
        {
            cmbOrderBy.SelectedIndex = 0;
            cmbSafesearch.SelectedIndex = 0;
        }

        private void btnOK_Click(object sender, EventArgs e)
        {
         
            if (txtAuthor.Text != "" || txtQuerry.Text != "")
            {
                if (cmbOrderBy.SelectedIndex >= 0 || cmbOrderBy.SelectedIndex <= 3)
                {
                    if (cmbSafesearch.SelectedIndex >= 0 || cmbSafesearch.SelectedIndex <= 2)
                    {
                        choice = 1;
                        author = txtAuthor.Text;
                        orderby  = cmbOrderBy.SelectedIndex.ToString();
                        qry  = txtQuerry.Text;
                        safesearch  = cmbSafesearch.SelectedIndex.ToString();
                        this.Hide();
                    }
                }
            }
            else { MessageBox.Show("Please enter the correct data");}
        }

        private void btnCancel_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (txtSname.Text != "")
            {
                sname  = txtSname.Text;
                choice  = 2;
                this.Hide();
            }
            else { MessageBox.Show("Please enter the name"); }

        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}