using MongoDB;using DockSample.DB;using MongoDB.Driver;using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.IO;using System.Linq;using System.Text;using System.Windows.Forms;using WeifenLuo.WinFormsUI.Docking;using MongoDB.Bson;namespace DockSample{    public partial class Form2 : DockContent    {        public Form2()        {            InitializeComponent();        }        // workaround of RichTextbox control's bug:        // If load file before the control showed, all the text format will be lost        // re-load the file after it get showed.        private bool m_resetText = true;        protected override void OnPaint(PaintEventArgs e)        {            base.OnPaint(e);            if (m_resetText)            {                m_resetText = false;            }        }        protected override string GetPersistString()        {            // Add extra information into the persist string for this document            // so that it is available when deserialized.            return GetType().ToString() + ",1123," + Text;        }        private void menuItem2_Click(object sender, System.EventArgs e)        {            MessageBox.Show("This is to demostrate menu item has been successfully merged into the main form. Form Text=" + Text);        }        private void menuItemCheckTest_Click(object sender, System.EventArgs e)        {        }        protected override void OnTextChanged(EventArgs e)        {            base.OnTextChanged(e);        }            private void button1_Click(object sender, EventArgs e)        {            usera u = new usera();            u.cid = 10;            u.name = "测试看看";            WriteConcernResult s = MongoDBHelper.InsertOne("user", u);            label1.Text = s.DocumentsAffected.ToString() + "------" + s.HasLastErrorMessage.ToString();//s.HasLastErrorMessage=false既是表示操作成功！        }        private void button2_Click(object sender, EventArgs e)        {            IMongoQuery query = MongoDB.Driver.Builders.Query.EQ("cid", 9);           // usera u = MongoDBHelper.GetOne
     
      ("user", query);            IEnumerable
      
        u = MongoDBHelper.GetAll
       
        ("user").Distinct
        
         (new ModelComparer());            //usera u = MongoDBHelper.GetOne
         
          ("user", "555993c18825b905c8879edc");            //label1.Text = u.cid.ToString() + "---" + u.name;            foreach(usera ua in u)            {                richTextBox1.AppendText(ua.cid.ToString() + "--" + ua.name + "\r\n");            }        }        private void button3_Click(object sender, EventArgs e)        {            MongoDBHelper.DeleteAll("user");                  }    }    public class usera    {        public ObjectId id { get; set; }        public int cid { get; set; }        public string name { get; set; }    }    public class ModelComparer : IEqualityComparer
          
            { public bool Equals(usera x, usera y) { return x.name.ToUpper() == y.name.ToUpper(); } public int GetHashCode(usera obj) { return obj.name.ToUpper().GetHashCode(); } }}