注册新用户.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 注册新用户
    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 Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox3 As System.Windows.Forms.TextBox
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents Label5 As System.Windows.Forms.Label
    Friend WithEvents OleDbDataAdapter1 As System.Data.OleDb.OleDbDataAdapter
    Friend WithEvents Da1 As 学生公寓管理系统.Da
    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 OleDbConnection1 As System.Data.OleDb.OleDbConnection
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.Label3 = New System.Windows.Forms.Label
        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.Da1 = New 学生公寓管理系统.Da
        Me.TextBox2 = New System.Windows.Forms.TextBox
        Me.TextBox3 = New System.Windows.Forms.TextBox
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.Label5 = New System.Windows.Forms.Label
        Me.OleDbDataAdapter1 = New System.Data.OleDb.OleDbDataAdapter
        Me.OleDbDeleteCommand1 = New System.Data.OleDb.OleDbCommand
        Me.OleDbConnection1 = New System.Data.OleDb.OleDbConnection
        Me.OleDbInsertCommand1 = New System.Data.OleDb.OleDbCommand
        Me.OleDbSelectCommand1 = New System.Data.OleDb.OleDbCommand
        Me.OleDbUpdateCommand1 = New System.Data.OleDb.OleDbCommand
        CType(Me.Da1, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'Label1
        '
        Me.Label1.AutoSize = True
        Me.Label1.Font = New System.Drawing.Font("宋体", 12.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.Label1.Location = New System.Drawing.Point(40, 48)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(55, 22)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "用户名"
        '
        'Label2
        '
        Me.Label2.AutoSize = True
        Me.Label2.Font = New System.Drawing.Font("宋体", 12.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.Label2.Location = New System.Drawing.Point(40, 80)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(55, 22)
        Me.Label2.TabIndex = 1
        Me.Label2.Text = "密  码"
        '
        'Label3
        '
        Me.Label3.AutoSize = True
        Me.Label3.Font = New System.Drawing.Font("宋体", 12.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.Label3.Location = New System.Drawing.Point(40, 112)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(55, 22)
        Me.Label3.TabIndex = 2
        Me.Label3.Text = "密  码"
        '
        'TextBox1
        '
        Me.TextBox1.DataBindings.Add(New System.Windows.Forms.Binding("Text", Me.Da1, "用户.用户名"))
        Me.TextBox1.Location = New System.Drawing.Point(112, 48)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.TabIndex = 0
        Me.TextBox1.Text = ""
        '
        'Da1
        '
        Me.Da1.DataSetName = "Da"
        Me.Da1.Locale = New System.Globalization.CultureInfo("zh-CN")
        '
        'TextBox2
        '
        Me.TextBox2.Location = New System.Drawing.Point(112, 80)
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.PasswordChar = Microsoft.VisualBasic.ChrW(42)
        Me.TextBox2.TabIndex = 1
        Me.TextBox2.Text = ""
        '
        'TextBox3
        '
        Me.TextBox3.DataBindings.Add(New System.Windows.Forms.Binding("Text", Me.Da1, "用户.密码"))
        Me.TextBox3.Location = New System.Drawing.Point(112, 112)
        Me.TextBox3.Name = "TextBox3"
        Me.TextBox3.PasswordChar = Microsoft.VisualBasic.ChrW(42)
        Me.TextBox3.TabIndex = 2
        Me.TextBox3.Text = ""
        '
        'Button1
        '
        Me.Button1.BackColor = System.Drawing.SystemColors.Control
        Me.Button1.Location = New System.Drawing.Point(56, 152)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(64, 32)
        Me.Button1.TabIndex = 3
        Me.Button1.Text = "确定"
        '
        'Button2
        '
        Me.Button2.BackColor = System.Drawing.SystemColors.Control
        Me.Button2.Location = New System.Drawing.Point(144, 152)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(64, 32)
        Me.Button2.TabIndex = 4
        Me.Button2.Text = "取消"
        '
        'Label5
        '
        Me.Label5.AutoSize = True
        Me.Label5.Font = New System.Drawing.Font("宋体", 15.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.Label5.ForeColor = System.Drawing.Color.Blue
        Me.Label5.Location = New System.Drawing.Point(64, 8)
        Me.Label5.Name = "Label5"
        Me.Label5.Size = New System.Drawing.Size(116, 27)
        Me.Label5.TabIndex = 10
        Me.Label5.Text = "注册新用户"
        '
        'OleDbDataAdapter1
        '
        Me.OleDbDataAdapter1.DeleteCommand = Me.OleDbDeleteCommand1
        Me.OleDbDataAdapter1.InsertCommand = Me.OleDbInsertCommand1
        Me.OleDbDataAdapter1.SelectCommand = Me.OleDbSelectCommand1
        Me.OleDbDataAdapter1.TableMappings.AddRange(New System.Data.Common.DataTableMapping() {New System.Data.Common.DataTableMapping("Table", "用户", New System.Data.Common.DataColumnMapping() {New System.Data.Common.DataColumnMapping("用户名", "用户名"), New System.Data.Common.DataColumnMapping("密码", "密码")})})
        Me.OleDbDataAdapter1.UpdateCommand = Me.OleDbUpdateCommand1
        '
        'OleDbDeleteCommand1
        '
        Me.OleDbDeleteCommand1.CommandText = "DELETE FROM 用户 WHERE (用户名 = ?) AND (密码 = ? OR ? IS NULL AND 密码 IS NULL)"
        Me.OleDbDeleteCommand1.Connection = Me.OleDbConnection1
        Me.OleDbDeleteCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_用户名", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "用户名", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbDeleteCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_密码", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "密码", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbDeleteCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_密码1", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "密码", System.Data.DataRowVersion.Original, Nothing))
        '
        'OleDbConnection1
        '
        Me.OleDbConnection1.ConnectionString = "Jet OLEDB:Global Partial Bulk Ops=2;Jet OLEDB:Registry Path=;Jet OLEDB:Database L" & _
        "ocking Mode=1;Data Source=""C:\学生公寓管理系统\bin\学生公寓管理系统.mdb"";Jet OLEDB:Engine Type=5" & _
        ";Provider=""Microsoft.Jet.OLEDB.4.0"";Jet OLEDB:System database=;Jet OLEDB:SFP=Fal" & _
        "se;persist security info=False;Extended Properties=;Mode=Share Deny None;Jet OLE" & _
        "DB:Encrypt Database=False;Jet OLEDB:Create System Database=False;Jet OLEDB:Don't" & _
        " Copy Locale on Compact=False;Jet OLEDB:Compact Without Replica Repair=False;Use" & _
        "r ID=Admin;Jet OLEDB:Global Bulk Transactions=1"
        '
        'OleDbInsertCommand1
        '
        Me.OleDbInsertCommand1.CommandText = "INSERT INTO 用户(用户名, 密码) VALUES (?, ?)"
        Me.OleDbInsertCommand1.Connection = Me.OleDbConnection1
        Me.OleDbInsertCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("用户名", System.Data.OleDb.OleDbType.VarWChar, 50, "用户名"))
        Me.OleDbInsertCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("密码", System.Data.OleDb.OleDbType.VarWChar, 50, "密码"))
        '
        'OleDbSelectCommand1
        '
        Me.OleDbSelectCommand1.CommandText = "SELECT 用户名, 密码 FROM 用户"
        Me.OleDbSelectCommand1.Connection = Me.OleDbConnection1
        '
        'OleDbUpdateCommand1
        '
        Me.OleDbUpdateCommand1.CommandText = "UPDATE 用户 SET 用户名 = ?, 密码 = ? WHERE (用户名 = ?) AND (密码 = ? OR ? IS NULL AND 密码 IS " & _
        "NULL)"
        Me.OleDbUpdateCommand1.Connection = Me.OleDbConnection1
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("用户名", System.Data.OleDb.OleDbType.VarWChar, 50, "用户名"))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("密码", System.Data.OleDb.OleDbType.VarWChar, 50, "密码"))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_用户名", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "用户名", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_密码", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "密码", System.Data.DataRowVersion.Original, Nothing))
        Me.OleDbUpdateCommand1.Parameters.Add(New System.Data.OleDb.OleDbParameter("Original_密码1", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "密码", System.Data.DataRowVersion.Original, Nothing))
        '
        '注册新用户
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.BackColor = System.Drawing.Color.Silver
        Me.ClientSize = New System.Drawing.Size(264, 205)
        Me.Controls.Add(Me.Label5)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.TextBox3)
        Me.Controls.Add(Me.TextBox2)
        Me.Controls.Add(Me.TextBox1)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.MaximizeBox = False
        Me.Name = "注册新用户"
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "注册新用户"
        CType(Me.Da1, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub 注册新用户_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    

        Try
            OleDbDataAdapter1.SelectCommand.CommandText = "select * from 用户"
            Da1.Clear()
            OleDbDataAdapter1.Fill(Da1)
            Me.BindingContext(Da1, "用户").AddNew()

        Catch ex As Exception

        End Try
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If TextBox1.Text = "" Then
            MsgBox("用户名不能为空!")
            Exit Sub
        End If
        If TextBox2.Text = "" Then
            MsgBox("密码不能为空!")
            Exit Sub
        End If
        If TextBox3.Text = "" Then
            MsgBox("密码不能为空!")
            Exit Sub

        End If
        If Trim(TextBox2.Text) <> Trim(TextBox3.Text) Then
            MsgBox("您两次输入的密码不一致!")
            Exit Sub
        End If

        Try
            Me.BindingContext(Da1, "用户").EndCurrentEdit()
            OleDbDataAdapter1.Update(Da1.用户)
            MsgBox("恭喜您,注册成功!")
        Catch ex As Exception
            MsgBox("用户名已注册,请注册其它用户名!")
            TextBox1.Text = ""
            TextBox2.Text = ""
            TextBox3.Text = ""
        End Try
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Me.Close()
    End Sub
End Class