xsjb.vb

不知道怎么用

Imports System.Data
Imports System.Data.SqlClient

Public Class xsjb
    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 CrystalReportViewer1 As CrystalDecisions.Windows.Forms.CrystalReportViewer
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.CrystalReportViewer1 = New CrystalDecisions.Windows.Forms.CrystalReportViewer
        Me.SuspendLayout()
        '
        'CrystalReportViewer1
        '
        Me.CrystalReportViewer1.ActiveViewIndex = -1
        Me.CrystalReportViewer1.DisplayGroupTree = False
        Me.CrystalReportViewer1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.CrystalReportViewer1.Location = New System.Drawing.Point(0, 0)
        Me.CrystalReportViewer1.Name = "CrystalReportViewer1"
        Me.CrystalReportViewer1.ReportSource = Nothing
        Me.CrystalReportViewer1.Size = New System.Drawing.Size(292, 266)
        Me.CrystalReportViewer1.TabIndex = 0
        '
        'xsjb
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Controls.Add(Me.CrystalReportViewer1)
        Me.Name = "xsjb"
        Me.Text = "学生基本情况打印"
        Me.WindowState = System.Windows.Forms.FormWindowState.Maximized
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private ds As DataSet = New DataSet
    Private mytable As Data.DataTable
    Public SearchSQL As String
    Private adocmd As SqlDataAdapter
    Private myrow As Data.DataRow
    Private rownumber As Integer
    Private cmd As SqlCommandBuilder
    Private Shared m_Form As New xsjb

    Public Shared ReadOnly Property NewForm() As xsjb
        Get
            If m_Form Is Nothing OrElse m_Form.IsDisposed Then
                m_Form = New xsjb
            End If
            Return m_Form
        End Get
    End Property
    Private Function ExecuteSQL(ByVal SQL As String, ByVal table As String)
        Dim conn As String = Me.Tag
        adocmd = New SqlDataAdapter(SQL, conn)
        adocmd.Fill(ds, table)
        mytable = ds.Tables.Item(0)
        rownumber = 0
        myrow = mytable.Rows.Item(rownumber)
    End Function
    Private Sub CrystalReportViewer1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CrystalReportViewer1.Load
        Dim tablename As String = "学生信息表"
        ExecuteSQL(SearchSQL, tablename)
        Dim port As New cr_xsjbqk
        port.SetDataSource(ds.Tables(0))
        CrystalReportViewer1.ReportSource = port
    End Sub
End Class