frmset.vb

强大的教务考勤系统数据库

Public Class frmSet
    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 Cancel As System.Windows.Forms.Button
    Friend WithEvents Sure As System.Windows.Forms.Button
    Friend WithEvents ComboBox1 As System.Windows.Forms.ComboBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Cancel = New System.Windows.Forms.Button
        Me.Sure = New System.Windows.Forms.Button
        Me.ComboBox1 = New System.Windows.Forms.ComboBox
        Me.SuspendLayout()
        '
        'Cancel
        '
        Me.Cancel.Location = New System.Drawing.Point(128, 80)
        Me.Cancel.Name = "Cancel"
        Me.Cancel.Size = New System.Drawing.Size(88, 24)
        Me.Cancel.TabIndex = 5
        Me.Cancel.Text = "取消"
        '
        'Sure
        '
        Me.Sure.Location = New System.Drawing.Point(16, 80)
        Me.Sure.Name = "Sure"
        Me.Sure.Size = New System.Drawing.Size(88, 24)
        Me.Sure.TabIndex = 4
        Me.Sure.Text = "确定"
        '
        'ComboBox1
        '
        Me.ComboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList
        Me.ComboBox1.Items.AddRange(New Object() {"（请选择教室）"})
        Me.ComboBox1.Location = New System.Drawing.Point(16, 32)
        Me.ComboBox1.Name = "ComboBox1"
        Me.ComboBox1.Size = New System.Drawing.Size(200, 20)
        Me.ComboBox1.TabIndex = 3
        '
        'frmSet
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(232, 134)
        Me.Controls.Add(Me.Cancel)
        Me.Controls.Add(Me.Sure)
        Me.Controls.Add(Me.ComboBox1)
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog
        Me.MaximizeBox = False
        Me.MinimizeBox = False
        Me.Name = "frmSet"
        Me.Text = "设置"
        Me.ResumeLayout(False)

    End Sub

#End Region
    Dim sqlstr As String = "SELECT DISTINCT cRoom FROM course"
    Dim mycon As New SqlConnection(Control.constr)
    Dim mycom As New SqlCommand(sqlstr, mycon)
    Dim myread As SqlDataReader
    Dim dsql As String
    Private Sub frmSet_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Try
            mycon.Open()
            myread = mycom.ExecuteReader
            While myread.Read()
                ComboBox1.Items.Add(myread(0))
            End While
            myread.Close()
            ComboBox1.SelectedIndex = 0
        Catch ex As Exception
            MsgBox("数据库连接失败！" & ex.ToString, , "错误信息")
            mycon.Close()
            Me.Close()
            Exit Sub
        End Try
    End Sub

    Private Sub Sure_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Sure.Click
        If (ComboBox1.SelectedIndex = 0) Then
            MsgBox("请选择教室！", , "提示")
            Exit Sub
        End If
        Me.Hide()
        Dim fCard As New frmCard
        fCard.StartPosition = Windows.Forms.FormStartPosition.CenterScreen
        fCard.ShowDialog()
    End Sub
    Private Sub Cancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Cancel.Click
        mycon.Close()
        Me.Close()
        End
    End Sub

    Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
        Control.choice = ComboBox1.Text
    End Sub
End Class