roomsearch.cs

《C#数据库项目案例导航》一书的配套光盘

			this.groupBox1.Controls.Add(this.label4);
			this.groupBox1.Controls.Add(this.label3);
			this.groupBox1.Controls.Add(this.label6);
			this.groupBox1.Controls.Add(this.label2);
			this.groupBox1.Controls.Add(this.label1);
			this.groupBox1.Controls.Add(this.textRoomID);
			this.groupBox1.ForeColor = System.Drawing.SystemColors.Desktop;
			this.groupBox1.Location = new System.Drawing.Point(40, 16);
			this.groupBox1.Name = "groupBox1";
			this.groupBox1.Size = new System.Drawing.Size(474, 120);
			this.groupBox1.TabIndex = 20;
			this.groupBox1.TabStop = false;
			this.groupBox1.Text = "输入查询条件";
			// 
			// comboFactPeopleNum
			// 
			this.comboFactPeopleNum.Items.AddRange(new object[] {
																	"0",
																	"1",
																	"2",
																	"3",
																	"4"});
			this.comboFactPeopleNum.Location = new System.Drawing.Point(200, 56);
			this.comboFactPeopleNum.Name = "comboFactPeopleNum";
			this.comboFactPeopleNum.Size = new System.Drawing.Size(88, 20);
			this.comboFactPeopleNum.TabIndex = 23;
			// 
			// comboPeopleNum
			// 
			this.comboPeopleNum.Items.AddRange(new object[] {
																"1",
																"2",
																"3",
																"4"});
			this.comboPeopleNum.Location = new System.Drawing.Point(72, 56);
			this.comboPeopleNum.Name = "comboPeopleNum";
			this.comboPeopleNum.Size = new System.Drawing.Size(72, 20);
			this.comboPeopleNum.TabIndex = 22;
			// 
			// comboRoomPosition
			// 
			this.comboRoomPosition.Items.AddRange(new object[] {
																   "一层",
																   "二层",
																   "三层",
																   "四层",
																   "五层"});
			this.comboRoomPosition.Location = new System.Drawing.Point(352, 24);
			this.comboRoomPosition.Name = "comboRoomPosition";
			this.comboRoomPosition.Size = new System.Drawing.Size(72, 20);
			this.comboRoomPosition.TabIndex = 21;
			// 
			// comboRoomType
			// 
			this.comboRoomType.Items.AddRange(new object[] {
															   "标准间",
															   "双人间",
															   "四人间",
															   "豪华间"});
			this.comboRoomType.Location = new System.Drawing.Point(200, 24);
			this.comboRoomType.Name = "comboRoomType";
			this.comboRoomType.Size = new System.Drawing.Size(88, 20);
			this.comboRoomType.TabIndex = 20;
			// 
			// textRemark
			// 
			this.textRemark.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.textRemark.Location = new System.Drawing.Point(72, 88);
			this.textRemark.Multiline = true;
			this.textRemark.Name = "textRemark";
			this.textRemark.Size = new System.Drawing.Size(352, 20);
			this.textRemark.TabIndex = 18;
			this.textRemark.Text = "";
			// 
			// listView1
			// 
			this.listView1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
				| System.Windows.Forms.AnchorStyles.Left) 
				| System.Windows.Forms.AnchorStyles.Right)));
			this.listView1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.listView1.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
																						this.columnHeader1,
																						this.columnHeader2,
																						this.columnHeader3,
																						this.columnHeader4,
																						this.columnHeader5,
																						this.columnHeader6});
			this.listView1.ForeColor = System.Drawing.SystemColors.Desktop;
			this.listView1.FullRowSelect = true;
			this.listView1.GridLines = true;
			this.listView1.HeaderStyle = System.Windows.Forms.ColumnHeaderStyle.Nonclickable;
			this.listView1.Location = new System.Drawing.Point(64, 152);
			this.listView1.MultiSelect = false;
			this.listView1.Name = "listView1";
			this.listView1.Size = new System.Drawing.Size(434, 304);
			this.listView1.TabIndex = 21;
			this.listView1.View = System.Windows.Forms.View.Details;
			// 
			// columnHeader1
			// 
			this.columnHeader1.Text = "房间号";
			// 
			// columnHeader2
			// 
			this.columnHeader2.Text = "房间类型";
			// 
			// columnHeader3
			// 
			this.columnHeader3.Text = "房间楼层";
			// 
			// columnHeader4
			// 
			this.columnHeader4.Text = "额定人数";
			// 
			// columnHeader5
			// 
			this.columnHeader5.Text = "实际人数";
			// 
			// columnHeader6
			// 
			this.columnHeader6.Text = "备注";
			this.columnHeader6.Width = 100;
			// 
			// RoomSearch
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.BackColor = System.Drawing.SystemColors.Window;
			this.ClientSize = new System.Drawing.Size(642, 473);
			this.Controls.Add(this.listView1);
			this.Controls.Add(this.panel2);
			this.Controls.Add(this.groupBox1);
			this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
			this.Name = "RoomSearch";
			this.Text = "客房查询";
			this.Load += new System.EventHandler(this.RoomSearch_Load);
			this.panel2.ResumeLayout(false);
			this.groupBox1.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion

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

		private void btnCancel_Click(object sender, System.EventArgs e)
		{
			this.TextClear();

		}
		private void TextClear()
		{
			this.textRoomID.Clear();
			this.textRemark.Clear();
			this.comboRoomType.Text="";
			this.comboRoomPosition.Text="";
			this.comboPeopleNum.Text="";
			this.comboFactPeopleNum.Text="";
			
		}

		private void btnSearch_Click(object sender, System.EventArgs e)
		{
			bool first=true;			
			this.selectStr="select * from Room where";
			if(this.textRoomID.Text!="")
			{
				this.selectStr=this.selectStr+" RoomID="+"'"+this.textRoomID.Text+"'";
				
			}
			else
			{
				if(this.comboRoomType.Text!="")
				{
					this.selectStr=this.selectStr+" RoomType="+"'"+this.comboRoomType.Text+"'";
					first=false;
				}
				if(this.comboRoomPosition.Text!="")
				{
					if(first)
						this.selectStr=this.selectStr+" RoomPosition="+"'"+this.comboRoomPosition.Text+"'";
					else
						this.selectStr=this.selectStr+" and RoomPosition="+"'"+this.comboRoomPosition.Text+"'";
					first=false;
				}
				if(this.comboPeopleNum.Text!="")
				{
					if(first)
						this.selectStr=this.selectStr+" PeopleNum="+Convert.ToInt16(this.comboPeopleNum.Text);
					else
						this.selectStr=this.selectStr+" and PeopleNum="+Convert.ToInt16(this.comboPeopleNum.Text);
					first=false;
				}
				if(this.comboFactPeopleNum.Text!="")
				{
					if(first)
						this.selectStr=this.selectStr+" FactPeopleNum="+Convert.ToInt16(this.comboFactPeopleNum.Text);
					else
						this.selectStr=this.selectStr+" and FactPeopleNum="+Convert.ToInt16(this.comboFactPeopleNum.Text);
					first=false;
				}
				if(this.textRemark.Text!="")
				{
					if(first)
						this.selectStr=this.selectStr+" Remark="+"'"+this.textRemark.Text+"'";
					else
						this.selectStr=this.selectStr+" and Remark="+"'"+this.textRemark.Text+"'";
					first=false;
				}

			}
			this.UpdateListView(this.selectStr);
			this.TextClear();
			this.btnBookIn.Enabled=true;
		
		}
		
		private void UpdateListView(string selectstr)
		{
			this.listView1.Items.Clear();
			this.listView1.Refresh();			
			this.sqlCommand1.CommandText=selectstr;
			try
			{
				if(this.sqlConnection1.State==ConnectionState.Closed)
					this.sqlConnection1.Open();
				this.sqlDataReader1=this.sqlCommand1.ExecuteReader();
				while(this.sqlDataReader1.Read())
				{
					ListViewItem li = new ListViewItem ( ) ;
					li.SubItems.Clear ( ) ;
					li.SubItems[0].Text = sqlDataReader1["RoomID"].ToString ( ) ;
					li.SubItems.Add ( sqlDataReader1["RoomTypeName"].ToString ( ) ) ;
					li.SubItems.Add ( sqlDataReader1["RoomPosition"].ToString ( ) ) ;					
					li.SubItems.Add (sqlDataReader1["PeopleNum"].ToString ( ) );
					li.SubItems.Add (sqlDataReader1["FactPeopleNum"].ToString ( ) ) ;																
					li.SubItems.Add ( sqlDataReader1["Remark"].ToString ( ) ) ;
					this.listView1.Items.Add ( li ) ;
				}
			}
			catch(System.Exception E)
			{
				MessageBox.Show(E.ToString());

			}
			finally
			{
				this.sqlDataReader1.Close();			
				this.sqlConnection1.Close();
			}			
		}		

		private void btnBookIn_Click(object sender, System.EventArgs e)
		{
			int i;
			for(i=0;i<this.listView1.Items.Count;i++)
			{
				if(this.listView1.Items[i].Selected==true)
					break;
			}
			ClientBookIn bookinForm=new ClientBookIn(this.listView1.Items[i].SubItems[0].Text);			
			try
			{
				bookinForm.ShowDialog();
			}
			catch(Exception E)
			{
				MessageBox.Show(E.ToString());
			}
			if(this.listView1.Items.Count==0)
			{
				MessageBox.Show("没有记录存在","没有记录",MessageBoxButtons.OK,MessageBoxIcon.Information);
			}
			this.listView1.Items.Clear();
			this.TextClear();
		
		}

		private void RoomSearch_Load(object sender, System.EventArgs e)
		{
			this.btnBookIn.Enabled=false;
		}

		private void btnEmptyRoom_Click(object sender, System.EventArgs e)
		{
			this.selectStr="select * from Room where FactPeopleNum=0";			
			this.UpdateListView(this.selectStr);
			this.TextClear();
			this.btnBookIn.Enabled=true;
		
		}

		private void btnNotFull_Click(object sender, System.EventArgs e)
		{
			this.selectStr="select * from Room where PeopleNum>FactPeopleNum";
			this.UpdateListView(this.selectStr);
			this.TextClear();
			this.btnBookIn.Enabled=true;

		}
	}
}