frmqh.vb

需要在.net环境下运行需要安装框架

Public Class FRMQH
    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

    '窗体重写处置以清理组件列表。
    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 DG As System.Windows.Forms.DataGrid
    Friend WithEvents btnHID As System.Windows.Forms.Button
    Friend WithEvents btnHName As System.Windows.Forms.Button
    Friend WithEvents btnHOName As System.Windows.Forms.Button
    Friend WithEvents btnHSold As System.Windows.Forms.Button
    Friend WithEvents tbIF As System.Windows.Forms.TextBox
    Friend WithEvents btnAll As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.DG = New System.Windows.Forms.DataGrid()
        Me.btnHID = New System.Windows.Forms.Button()
        Me.btnHName = New System.Windows.Forms.Button()
        Me.btnHOName = New System.Windows.Forms.Button()
        Me.btnHSold = New System.Windows.Forms.Button()
        Me.tbIF = New System.Windows.Forms.TextBox()
        Me.btnAll = New System.Windows.Forms.Button()
        CType(Me.DG, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'DG
        '
        Me.DG.Anchor = (((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
                    Or System.Windows.Forms.AnchorStyles.Left) _
                    Or System.Windows.Forms.AnchorStyles.Right)
        Me.DG.DataMember = ""
        Me.DG.HeaderForeColor = System.Drawing.SystemColors.ControlText
        Me.DG.Location = New System.Drawing.Point(8, 48)
        Me.DG.Name = "DG"
        Me.DG.Size = New System.Drawing.Size(488, 264)
        Me.DG.TabIndex = 0
        '
        'btnHID
        '
        Me.btnHID.Location = New System.Drawing.Point(240, 16)
        Me.btnHID.Name = "btnHID"
        Me.btnHID.Size = New System.Drawing.Size(64, 24)
        Me.btnHID.TabIndex = 1
        Me.btnHID.Text = "房号"
        '
        'btnHName
        '
        Me.btnHName.Location = New System.Drawing.Point(304, 16)
        Me.btnHName.Name = "btnHName"
        Me.btnHName.Size = New System.Drawing.Size(64, 24)
        Me.btnHName.TabIndex = 2
        Me.btnHName.Text = "名称"
        '
        'btnHOName
        '
        Me.btnHOName.Location = New System.Drawing.Point(368, 16)
        Me.btnHOName.Name = "btnHOName"
        Me.btnHOName.Size = New System.Drawing.Size(64, 24)
        Me.btnHOName.TabIndex = 3
        Me.btnHOName.Text = "房主"
        '
        'btnHSold
        '
        Me.btnHSold.Location = New System.Drawing.Point(432, 16)
        Me.btnHSold.Name = "btnHSold"
        Me.btnHSold.Size = New System.Drawing.Size(64, 24)
        Me.btnHSold.TabIndex = 4
        Me.btnHSold.Text = "是否已售"
        '
        'tbIF
        '
        Me.tbIF.Location = New System.Drawing.Point(8, 16)
        Me.tbIF.Name = "tbIF"
        Me.tbIF.Size = New System.Drawing.Size(152, 21)
        Me.tbIF.TabIndex = 5
        Me.tbIF.Text = ""
        '
        'btnAll
        '
        Me.btnAll.Location = New System.Drawing.Point(176, 16)
        Me.btnAll.Name = "btnAll"
        Me.btnAll.Size = New System.Drawing.Size(64, 24)
        Me.btnAll.TabIndex = 6
        Me.btnAll.Text = "全部"
        '
        'FRMQH
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(504, 317)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.btnAll, Me.tbIF, Me.btnHSold, Me.btnHOName, Me.btnHName, Me.btnHID, Me.DG})
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
        Me.Name = "FRMQH"
        Me.Text = "FRMQH"
        CType(Me.DG, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private sqlStr As String
    Private Sub FRMQH_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        sqlStr = "select * from house"
        DoMe()
        DG.NavigateTo(0, "marvin")
    End Sub
    Private Function DoMe() As Boolean
        Dim dbopera1 As DbOpera = New DbOpera(sqlStr)
        DG.DataSource = dbopera1.getDG().DataSource
    End Function

    Private Sub btnHID_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnHID.Click
        If tbIF.Text = "" Then
            MsgBox("请输入条件！", MsgBoxStyle.Exclamation, "OK")
            Exit Sub
        End If
        Dim hID As Integer = Val(tbIF.Text)
        sqlStr = "select * from house where hID=" & hID.ToString()
        DoMe()
    End Sub

    Private Sub btnHName_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnHName.Click
        If tbIF.Text = "" Then
            MsgBox("请输入条件！", MsgBoxStyle.Exclamation, "OK")
            Exit Sub
        End If
        sqlStr = "select * from house where hName='" & tbIF.Text & "'"
        DoMe()
    End Sub

    Private Sub btnHOName_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnHOName.Click
        If tbIF.Text = "" Then
            MsgBox("请输入条件！", MsgBoxStyle.Exclamation, "OK")
            Exit Sub
        End If
        sqlStr = "select * from house where hoName='" & tbIF.Text & "'"
        DoMe()
    End Sub

    Private Sub btnHSold_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnHSold.Click
        If tbIF.Text = "" Then
            MsgBox("请输入条件！", MsgBoxStyle.Exclamation, "OK")
            Exit Sub
        End If
        If tbIF.Text = "是" Or tbIF.Text = "否" Then
            sqlStr = "select * from house where hSold='" & tbIF.Text & "'"
            DoMe()
        Else
            MsgBox("请输入正确的条件！是或否", MsgBoxStyle.Exclamation, "OK")
            Exit Sub
        End If
    End Sub

    Private Sub btnAll_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAll.Click
        sqlStr = "select * from house"
        DoMe()
    End Sub
End Class