'********************************** 'Using OleDb Command
'By:wgscd
'QQ153964481 '*********************************
'先建立一个用ACCACESS建立一个名为“wgscd”的数据库
'字段：编号,电话,地址,QQ,MAIL '保存路径：C:\me\source_file\wgscd.mdb '*********************************
Public Class Form1
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 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
Friend WithEvents DataGridTableStyle1 As System.Windows.Forms.DataGridTableStyle
Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.Button1 = New System.Windows.Forms.Button
Me.DataGrid1 = New System.Windows.Forms.DataGrid
Me.DataGridTableStyle1 = New System.Windows.Forms.DataGridTableStyle
Me.Button2 = New System.Windows.Forms.Button
Me.Button3 = New System.Windows.Forms.Button
Me.TextBox1 = New System.Windows.Forms.TextBox
CType(Me.DataGrid1, System.ComponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
'
'Button1
'
Me.Button1.Location = New System.Drawing.Point(528, 24)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(88, 32)
Me.Button1.TabIndex = 1
Me.Button1.Text = "Delete"
'
'DataGrid1
'
Me.DataGrid1.BackgroundColor = System.Drawing.Color.Tan
Me.DataGrid1.CaptionText = "oleDb demo By wgscd"
Me.DataGrid1.DataMember = ""
Me.DataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText
Me.DataGrid1.Location = New System.Drawing.Point(24, 72)
Me.DataGrid1.Name = "DataGrid1"
Me.DataGrid1.Size = New System.Drawing.Size(608, 304)
Me.DataGrid1.TabIndex = 2
Me.DataGrid1.TableStyles.AddRange(New System.Windows.Forms.DataGridTableStyle() {Me.DataGridTableStyle1})
'
'DataGridTableStyle1
'
Me.DataGridTableStyle1.BackColor = System.Drawing.Color.Blue
Me.DataGridTableStyle1.DataGrid = Me.DataGrid1
Me.DataGridTableStyle1.HeaderBackColor = System.Drawing.Color.FromArgb(CType(128, Byte), CType(255, Byte), CType(255, Byte))
Me.DataGridTableStyle1.HeaderFont = New System.Drawing.Font("宋体", 12.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
Me.DataGridTableStyle1.HeaderForeColor = System.Drawing.SystemColors.ControlText
Me.DataGridTableStyle1.LinkColor = System.Drawing.Color.RosyBrown
Me.DataGridTableStyle1.MappingName = ""
Me.DataGridTableStyle1.SelectionBackColor = System.Drawing.Color.FromArgb(CType(255, Byte), CType(192, Byte), CType(255, Byte))
'
'Button2
'
Me.Button2.Location = New System.Drawing.Point(40, 16)
Me.Button2.Name = "Button2"
Me.Button2.Size = New System.Drawing.Size(88, 32)
Me.Button2.TabIndex = 3
Me.Button2.Text = "add new row"
'
'Button3
'
Me.Button3.Location = New System.Drawing.Point(160, 16)
Me.Button3.Name = "Button3"
Me.Button3.Size = New System.Drawing.Size(152, 32)
Me.Button3.TabIndex = 4
Me.Button3.Text = "insert command "
'
'TextBox1
'
Me.TextBox1.Location = New System.Drawing.Point(440, 32)
Me.TextBox1.Name = "TextBox1"
Me.TextBox1.Size = New System.Drawing.Size(72, 21)
Me.TextBox1.TabIndex = 5
Me.TextBox1.Text = "TextBox1"
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
Me.BackColor = System.Drawing.Color.FromArgb(CType(255, Byte), CType(224, Byte), CType(192, Byte))
Me.ClientSize = New System.Drawing.Size(696, 430)
Me.Controls.Add(Me.TextBox1)
Me.Controls.Add(Me.Button3)
Me.Controls.Add(Me.Button2)
Me.Controls.Add(Me.DataGrid1)
Me.Controls.Add(Me.Button1)
Me.Name = "Form1"
Me.Text = "Form1"
CType(Me.DataGrid1, System.ComponentModel.ISupportInitialize).EndInit()
Me.ResumeLayout(False) End Sub #End Region Dim strconn As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\me\source_file\wgscd.mdb"
Dim ds As New DataSet("ds")
Dim dt As New DataTable("tb")
Dim oleconn As New OleDbConnection(strconn)
Dim olecmd As New OleDbCommand("select * from 美女联系方式", oleconn) '女名单") ' Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
If oleconn.State = ConnectionState.Open Then If CInt(TextBox1.Text) > 0 Then
olecmd.CommandText = "delete from 美女联系方式 where id=" & TextBox1.Text
olecmd.ExecuteNonQuery()
oleconn.Close()
MsgBox("ID为" & TextBox1.Text & "的记录成功删除！")
' Me.DataGrid1 = Nothing
' Me.DataGrid1.Refresh() End If Else End If getDb() Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load getDb() End Sub
Dim olead As New OleDbDataAdapter(olecmd) Sub getDb() Try oleconn.Open()
olead.Fill(ds)
dt = ds.Tables(0)
DataGrid1.DataSource = dt
TextBox1.Text = dt.Rows.Count Catch ex As Exception MsgBox(ex.Message) End Try End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Dim dr As DataRow = dt.NewRow
dr(0) = "999"
dr(1) = "77"
dr(2) = " 0407"
dr(3) = "767"
dr(4) = "737"
dr(5) = "737"
dt.Rows.Add(dr)
dt.AcceptChanges()
ds.AcceptChanges() End Sub Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Try
If oleconn.State = ConnectionState.Open Then
'添加记录命令串
olecmd.CommandText = "insert into 美女联系方式 (编号,电话,地址, QQ,MAIL) values (@tid,@phone,@addr,@qq,@mail)"
olecmd.Parameters.Add("@tid", "66")
olecmd.Parameters.Add("@phone", "665454").DbType = DbType.String
olecmd.Parameters.Add("@addr", "swust")
olecmd.Parameters.Add("@qq", "355566")
olecmd.Parameters.Add("@mail", "[email protected]")
olecmd.ExecuteNonQuery()
oleconn.Close() End If Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
End Class
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