deletestuinfo.vb

一个基于SQL架构的管理系统

Imports System
Imports System.Data
Imports System.Data.SqlClient
Public Class Form8
    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 TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents DataGrid1 As System.Windows.Forms.DataGrid
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents Button3 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Label1 = New System.Windows.Forms.Label
        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.Button1 = New System.Windows.Forms.Button
        Me.DataGrid1 = New System.Windows.Forms.DataGrid
        Me.Button2 = New System.Windows.Forms.Button
        Me.Button3 = New System.Windows.Forms.Button
        CType(Me.DataGrid1, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(24, 40)
        Me.Label1.Name = "Label1"
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "请输入学号"
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(176, 40)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(144, 21)
        Me.TextBox1.TabIndex = 1
        Me.TextBox1.Text = ""
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(48, 96)
        Me.Button1.Name = "Button1"
        Me.Button1.TabIndex = 2
        Me.Button1.Text = "确定"
        '
        'DataGrid1
        '
        Me.DataGrid1.DataMember = ""
        Me.DataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText
        Me.DataGrid1.Location = New System.Drawing.Point(8, 152)
        Me.DataGrid1.Name = "DataGrid1"
        Me.DataGrid1.Size = New System.Drawing.Size(464, 296)
        Me.DataGrid1.TabIndex = 3
        '
        'Button2
        '
        Me.Button2.Location = New System.Drawing.Point(184, 96)
        Me.Button2.Name = "Button2"
        Me.Button2.TabIndex = 4
        Me.Button2.Text = "更新"
        '
        'Button3
        '
        Me.Button3.Location = New System.Drawing.Point(304, 96)
        Me.Button3.Name = "Button3"
        Me.Button3.TabIndex = 5
        Me.Button3.Text = "关闭"
        '
        'Form8
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(472, 453)
        Me.Controls.Add(Me.Button3)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.DataGrid1)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.TextBox1)
        Me.Controls.Add(Me.Label1)
        Me.Name = "Form8"
        Me.Text = "删除学生信息"
        CType(Me.DataGrid1, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If TextBox1.Text = "" Then
            MsgBox("学号不能为空")
        Else
            deleteStuInfo()
        End If
    End Sub
    Sub deleteStuInfo()
        Dim str As String
        'Dim da As SqlDataAdapter
        'Dim ds As New DataSet
        'Dim frmName As String = "欢迎您"
        str = "Data Source=localhost;Initial Catalog = Student;integrated Security=true"
        Dim con As New SqlConnection(str)
        con.Open()
        Dim sql As String = "select * from student_Info where student_ID='" & TextBox1.Text.ToString().Trim() & "'"
        'and user_Des='" & sMenuText & "'
        Dim sql1 As String = "delete  from student_Info where student_ID='" & TextBox1.Text.ToString().Trim() & "'"
        'Dim sql2 As String = "update user_Info set user_PWD='" & TextBox3.Text.ToString().Trim() & "' where user_ID='" & TextBox1.Text.ToString().Trim() & "'"
        Dim cmd As New SqlCommand(sql, con)
        Dim cmd1 As New SqlCommand(sql1, con)
        'Dim cmd2 As New SqlCommand(sql2, con)
        'da = New SqlDataAdapter(sql, con)
        ' da.Fill(ds)
        ' DataGrid1.DataSource = ds.Tables(0)
        Dim reader As SqlDataReader
        reader = cmd.ExecuteReader


        If reader.Read() = True Then
            reader.Close()
            cmd1.ExecuteNonQuery()

            ' Me.Hide()
            'frm.Show()
            'frm1.Close()
            'frm.Text = "安徽建筑工业学院欢迎您---" & TextBox1.Text

        Else
            MsgBox("该用户不存在！")
        End If
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Me.Close()

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Dim str As String
        Dim ds As New DataSet
        Dim da As SqlDataAdapter
        'Dim frmName As String = "欢迎您"
        str = "Data Source=localhost;Initial Catalog = Student;integrated Security=true"
        Dim con As New SqlConnection(str)
        con.Open()
        Dim sql As String = "select * from student_Info "
        da = New SqlDataAdapter(sql, con)
        da.Fill(ds)
        DataGrid1.DataSource = ds.Tables(0)
    End Sub

    Private Sub Form8_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim str As String
        Dim ds As New DataSet
        Dim da As SqlDataAdapter
        'Dim frmName As String = "欢迎您"
        str = "Data Source=localhost;Initial Catalog = Student;integrated Security=true"
        Dim con As New SqlConnection(str)
        con.Open()
        Dim sql As String = "select * from student_Info "
        da = New SqlDataAdapter(sql, con)
        da.Fill(ds)
        DataGrid1.DataSource = ds.Tables(0)
    End Sub
End Class