住宿统计1.vb

一个功能强大的学生公寓管理系统 界面非常友好 十分强大

Public Class 住宿统计1
    Inherits System.Windows.Forms.Form

#Region " Windows 窗体设计器生成的代码 "

    Public Sub New()
        MyBase.New()

        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 调用之后添加任何初始化

    End Sub

    '窗体重写 dispose 以清理组件列表。
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Windows 窗体设计器所必需的
    Private components As System.ComponentModel.IContainer

    '注意: 以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    Friend WithEvents Df1 As 学生公寓管理系统.Df
    Friend WithEvents OleDbDA As System.Data.OleDb.OleDbDataAdapter
    Friend WithEvents OleDbCom As System.Data.OleDb.OleDbCommand
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents OleDbSelectCommand1 As System.Data.OleDb.OleDbCommand
    Friend WithEvents OleDbInsertCommand1 As System.Data.OleDb.OleDbCommand
    Friend WithEvents OleDbUpdateCommand1 As System.Data.OleDb.OleDbCommand
    Friend WithEvents OleDbDeleteCommand1 As System.Data.OleDb.OleDbCommand
    Friend WithEvents OleDbCon As System.Data.OleDb.OleDbConnection
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.OleDbDA = New System.Data.OleDb.OleDbDataAdapter
        Me.Df1 = New 学生公寓管理系统.Df
        Me.OleDbCom = New System.Data.OleDb.OleDbCommand
        Me.Label1 = New System.Windows.Forms.Label
        Me.OleDbSelectCommand1 = New System.Data.OleDb.OleDbCommand
        Me.OleDbInsertCommand1 = New System.Data.OleDb.OleDbCommand
        Me.OleDbUpdateCommand1 = New System.Data.OleDb.OleDbCommand
        Me.OleDbDeleteCommand1 = New System.Data.OleDb.OleDbCommand
        Me.OleDbCon = New System.Data.OleDb.OleDbConnection
        CType(Me.Df1, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'OleDbDA
        '
        Me.OleDbDA.DeleteCommand = Me.OleDbDeleteCommand1
        Me.OleDbDA.InsertCommand = Me.OleDbInsertCommand1
        Me.OleDbDA.SelectCommand = Me.OleDbSelectCommand1
        Me.OleDbDA.TableMappings.AddRange(New System.Data.Common.DataTableMapping() {New System.Data.Common.DataTableMapping("Table", "已住床位", New System.Data.Common.DataColumnMapping() {New System.Data.Common.DataColumnMapping("栋号", "栋号"), New System.Data.Common.DataColumnMapping("房号", "房号"), New System.Data.Common.DataColumnMapping("已住床位", "已住床位")})})
        Me.OleDbDA.UpdateCommand = Me.OleDbUpdateCommand1
        '
        'Df1
        '
        Me.Df1.DataSetName = "Df"
        Me.Df1.Locale = New System.Globalization.CultureInfo("zh-CN")
        '
        'Label1
        '
        Me.Label1.AutoSize = True
        Me.Label1.Font = New System.Drawing.Font("宋体", 14.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.Label1.ForeColor = System.Drawing.SystemColors.ActiveCaption
        Me.Label1.Location = New System.Drawing.Point(16, 8)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(271, 25)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "系统正在处理数据请稍等1……"
        '
        'OleDbSelectCommand1
        '
        Me.OleDbSelectCommand1.CommandText = "SELECT 栋号, 房号, 已住床位 FROM 已住床位"
        Me.OleDbSelectCommand1.Connection = Me.OleDbCon
        '
        'OleDbInsertCommand1
        '
        Me.OleDbInsertCommand1.CommandText = "INSERT INTO 已住床位(栋号, 房号, 已住床位) VALUES (?, ?, ?)"
        Me.OleDbInsertCommand1.Connection = Me.OleDbCon
        Me.OleDbInsertCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("栋号", System.Data.OleDb.OleDbType.VarWChar, 50, "栋号"))
        Me.OleDbInsertCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("房号", System.Data.OleDb.OleDbType.VarWChar, 50, "房号"))
        Me.OleDbInsertCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("已住床位", System.Data.OleDb.OleDbType.VarWChar, 50, "已住床位"))
        '
        'OleDbUpdateCommand1
        '
        Me.OleDbUpdateCommand1.CommandText = "UPDATE 已住床位 SET 栋号 = ?, 房号 = ?, 已住床位 = ? WHERE (房号 = ?) AND (栋号 = ?) AND (已住床位 = " & _
        "? OR ? IS NULL AND 已住床位 IS NULL)"
        Me.OleDbUpdateCommand1.Connection = Me.OleDbCon
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("栋号", System.Data.OleDb.OleDbType.VarWChar, 50, "栋号"))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("房号", System.Data.OleDb.OleDbType.VarWChar, 50, "房号"))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("已住床位", System.Data.OleDb.OleDbType.VarWChar, 50, "已住床位"))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_房号", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "房号", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_栋号", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "栋号", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_已住床位", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "已住床位", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_已住床位1", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "已住床位", System.Data.DataRowVersion.Original, Nothing))
        '
        'OleDbDeleteCommand1
        '
        Me.OleDbDeleteCommand1.CommandText = "DELETE FROM 已住床位 WHERE (房号 = ?) AND (栋号 = ?) AND (已住床位 = ? OR ? IS NULL AND 已住床位 " & _
        "IS NULL)"
        Me.OleDbDeleteCommand1.Connection = Me.OleDbCon
        Me.OleDbDeleteCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_房号", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "房号", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbDeleteCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_栋号", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "栋号", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbDeleteCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_已住床位", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "已住床位", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbDeleteCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_已住床位1", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "已住床位", System.Data.DataRowVersion.Original, Nothing))
        '
        'OleDbCon
        '
        Me.OleDbCon.ConnectionString = "Jet OLEDB:Global Partial Bulk Ops=2;Jet OLEDB:Registry Path=;Jet OLEDB:Database L" & _
        "ocking Mode=1;Data Source=""学生公寓管理系统.mdb"";Jet OLEDB:Engine Type=5;Provider=""Micro" & _
        "soft.Jet.OLEDB.4.0"";Jet OLEDB:System database=;Jet OLEDB:SFP=False;persist secur" & _
        "ity info=False;Extended Properties=;Mode=Share Deny None;Jet OLEDB:Encrypt Datab" & _
        "ase=False;Jet OLEDB:Create System Database=False;Jet OLEDB:Don't Copy Locale on " & _
        "Compact=False;Jet OLEDB:Compact Without Replica Repair=False;User ID=Admin;Jet O" & _
        "LEDB:Global Bulk Transactions=1"
        '
        '住宿统计1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(272, 40)
        Me.Controls.Add(Me.Label1)
        Me.ForeColor = System.Drawing.SystemColors.GrayText
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None
        Me.MaximizeBox = False
        Me.MinimizeBox = False
        Me.Name = "住宿统计1"
        Me.ShowInTaskbar = False
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "住宿统计1"
        Me.TopMost = True
        CType(Me.Df1, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub 住宿统计1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Try
            OleDbCon.ConnectionString = "Provider=Microsoft.Jet.Oledb.4.0;Data Source=学生公寓管理系统.mdb"
            OleDbCon.Open()
            OleDbCom.Connection = OleDbCon
            OleDbCom.CommandType = CommandType.TableDirect
            OleDbCom.CommandText = "已住床位"
            OleDbDA.SelectCommand = OleDbCom
            OleDbDA.Fill(Df1)
            Df1.Tables(0).TableName = "已住床位"

            OleDbCom.CommandType = CommandType.Text

            '从住宿登记表中统计已住人数写入已住床位中
            Dim Conn As New System.Data.OleDb.OleDbConnection
            Dim Cmd As New System.Data.OleDb.OleDbCommand
            Dim DataReader As System.Data.OleDb.OleDbDataReader
            Try
                Conn.ConnectionString = "Provider=Microsoft.Jet.Oledb.4.0;Data Source=学生公寓管理系统.mdb"
                Conn.Open()
                Cmd.CommandText = "Select 栋号,房号,count(*) As 已住床位 from 住宿登记 Group by 栋号,房号"
                Cmd.Connection = Conn
                DataReader = Cmd.ExecuteReader
                While DataReader.Read()
                    Dim a, b, c As String
                    a = DataReader.Item(0)
                    b = DataReader.Item(1)
                    c = DataReader.Item(2)

                    '把栋号,房号,已住床位 写入到已住床位表中
                    OleDbCom.CommandText = "Insert Into 已住床位 values(?,?,?)"
                    OleDbCom.Parameters.Clear()
                    OleDbCom.Parameters.Add("a", a)
                    OleDbCom.Parameters.Add("b", b)
                    OleDbCom.Parameters.Add("c", c)
                    OleDbDA.InsertCommand = OleDbCom
                    Dim DRow As DataRow
                    DRow = Df1.Tables("已住床位").NewRow
                    DRow.Item(0) = a
                    DRow.Item(1) = b
                    DRow.Item(2) = c
                    Df1.Tables("已住床位").Rows.Add(DRow)
                    OleDbDA.Update(Df1, "已住床位")
                End While
                DataReader.Close()
                Conn.Close()
            Catch ex As Exception
                MsgBox(ex.Message)
            End Try

        Catch ex As Exception
            MsgBox(ex.Message)
        End Try

        '析构连接对象,命令对象,数据对象
        OleDbCon.Dispose()
        OleDbCom.Dispose()
        OleDbDA.Dispose()
        Df1.Dispose()

        Me.Close()


    End Sub


    Private Sub 住宿统计1_VisibleChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.VisibleChanged
        Me.Hide()
    End Sub

    Private Sub Label1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label1.Click

    End Sub
End Class