frmretreattable.vb

VB写的进销存管理系统

        Me.bunSearch.TabIndex = 96
        Me.bunSearch.Text = "搜索"
        '
        'bunAdd
        '
        Me.bunAdd.Location = New System.Drawing.Point(48, 152)
        Me.bunAdd.Name = "bunAdd"
        Me.bunAdd.Size = New System.Drawing.Size(40, 24)
        Me.bunAdd.TabIndex = 94
        Me.bunAdd.Text = "添加"
        '
        'bunUpdate
        '
        Me.bunUpdate.Location = New System.Drawing.Point(336, 152)
        Me.bunUpdate.Name = "bunUpdate"
        Me.bunUpdate.Size = New System.Drawing.Size(88, 24)
        Me.bunUpdate.TabIndex = 100
        Me.bunUpdate.Text = "更新到数据库"
        '
        'bunNext
        '
        Me.bunNext.Location = New System.Drawing.Point(288, 152)
        Me.bunNext.Name = "bunNext"
        Me.bunNext.Size = New System.Drawing.Size(32, 24)
        Me.bunNext.TabIndex = 99
        Me.bunNext.Text = ">>"
        '
        'bunCancel
        '
        Me.bunCancel.Location = New System.Drawing.Point(240, 152)
        Me.bunCancel.Name = "bunCancel"
        Me.bunCancel.Size = New System.Drawing.Size(40, 24)
        Me.bunCancel.TabIndex = 98
        Me.bunCancel.Text = "取消"
        '
        'frmRetreatTable
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(432, 190)
        Me.Controls.Add(Me.bunPrevious)
        Me.Controls.Add(Me.bunDelete)
        Me.Controls.Add(Me.bunSave)
        Me.Controls.Add(Me.bunSearch)
        Me.Controls.Add(Me.bunAdd)
        Me.Controls.Add(Me.bunUpdate)
        Me.Controls.Add(Me.bunNext)
        Me.Controls.Add(Me.bunCancel)
        Me.Controls.Add(Me.Label9)
        Me.Controls.Add(Me.txtDay)
        Me.Controls.Add(Me.txtMonth)
        Me.Controls.Add(Me.txtYear)
        Me.Controls.Add(Me.txtRCount)
        Me.Controls.Add(Me.txtOId)
        Me.Controls.Add(Me.txtRId)
        Me.Controls.Add(Me.Label8)
        Me.Controls.Add(Me.Label6)
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.Label7)
        Me.Controls.Add(Me.Label5)
        Me.Controls.Add(Me.Label2)
        Me.MaximizeBox = False
        Me.MinimizeBox = False
        Me.Name = "frmRetreatTable"
        Me.Text = "退货数据表"
        Me.ResumeLayout(False)

    End Sub

#End Region
    Private myDataAdapter As New SqlClient.SqlDataAdapter
    Private myDataReader As SqlClient.SqlDataReader
    Private myDataSet As DataSet = New DataSet("retreat")
    Private TableName As String
    Private myIndex As Integer = 0
    Private RowsMax As Integer
    Private Sub Rshowfield()
        If myIndex >= 0 Then
            Dim currRows() As DataRow = myDataSet.Tables(0).Select(Nothing, Nothing, DataViewRowState.CurrentRows)
            Dim myRow As DataRow = currRows(myIndex)
            txtRId.Text = myRow(0)
            txtOId.Text = myRow(1)
            txtRCount.Text = myRow(2)
            txtYear.Text = Microsoft.VisualBasic.DateAndTime.Year(myRow(3))
            txtMonth.Text = Microsoft.VisualBasic.DateAndTime.Month(myRow(3))
            txtDay.Text = Microsoft.VisualBasic.DateAndTime.Day(myRow(3))
        End If
    End Sub
    Private Sub bunCancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bunCancel.Click
        On Error GoTo ErrorHandle
        If RowsMax < 0 Then
            txtOId.Text = ""
            txtRId.Text = ""
            txtRCount.Text = ""
            txtYear.Text = ""
            txtMonth.Text = ""
            txtDay.Text = ""
            Exit Sub
        End If
        Rshowfield()
        Exit Sub
ErrorHandle:
        ShowErr()
    End Sub
    Private Sub bunDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bunDelete.Click
        On Error GoTo ErrorHandle
        If RowsMax < 0 Then
            MsgBox("库中没有可删除的记录！", , "退货数据表")
            Exit Sub
        End If
        If MsgBox("是否删除？", 36, "提示") = vbYes Then
            Dim myRow As DataRow = myDataSet.Tables(0).Rows(myIndex)
            Dim strsql As String = "delete from retreat where r_id='" & myRow("r_id") & "'"
            Dim mycommand As New SqlClient.SqlCommand(strsql, db)
            db.Open()
            mycommand.ExecuteNonQuery()
            db.Close()
            myRow.Delete()
            myDataSet.AcceptChanges()
            RowsMax = RowsMax - 1
            If RowsMax >= 0 Then
                myIndex = myIndex - 1
                Rshowfield()
                Exit Sub
            Else
                txtOId.Text = ""
                txtRId.Text = ""
                txtRCount.Text = ""
                txtYear.Text = ""
                txtMonth.Text = ""
                txtDay.Text = ""
                bunPrevious.Enabled = False
                bunDelete.Enabled = False
                bunSearch.Enabled = False
                bunSave.Enabled = False
                bunNext.Enabled = False
                Exit Sub
            End If
        Else
            Exit Sub
        End If
        Exit Sub
ErrorHandle:
        ShowErr()
    End Sub
    Private Sub bunNext_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bunNext.Click
        On Error Resume Next
        If myIndex < RowsMax Then
            myIndex = myIndex + 1
        End If
        Rshowfield()
    End Sub
    Private Sub bunPrevious_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bunPrevious.Click
        On Error Resume Next
        If myIndex > 0 Then
            myIndex = myIndex - 1
        End If
        Rshowfield()
    End Sub
    Private Sub bunSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bunSave.Click
        On Error GoTo ErrorHandle
        Dim myRow As DataRow = myDataSet.Tables(0).Rows(myIndex)
        myRow("r_count") = txtRCount.Text
        myRow("r_date") = CDate(txtYear.Text & "/" & txtMonth.Text & "/" & txtDay.Text)
        myDataSet.AcceptChanges()
        Dim strsql As String = "update retreat set r_count='" & myRow("r_count") & "', r_date='" & myRow("r_date") & "' where r_id='" & myRow("r_id") & "'"
        Dim mycommand As New SqlClient.SqlCommand(strsql, db)
        db.Open()
        mycommand.ExecuteNonQuery()
        db.Close()
        MsgBox("已经保存修改", , "退货数据表")
        Exit Sub
ErrorHandle:
        ShowErr()
    End Sub
    Private Sub bunSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bunSearch.Click
        On Error GoTo ErrorHandle
        Dim IDQuery As String
        Dim myRow As DataRow
        myIndex = 0
        IDQuery = InputBox("输入要搜索的退货编号", "按退货编号搜索")
        Dim currRows() As DataRow = myDataSet.Tables(0).Select(Nothing, Nothing, DataViewRowState.CurrentRows)
        For Each myRow In currRows
            If myRow("r_id") Like "*" & LCase(IDQuery) & "*" Then
                Rshowfield()
                Exit Sub
            Else
                myIndex = myIndex + 1
            End If
        Next
        MsgBox("没有找到符合条件的记录", , "退货数据表")
        Exit Sub
ErrorHandle:
        ShowErr()
    End Sub
    Private Sub frmFactory_Activated(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Activated
        ShowStatus("数据管理－－", "退货数据表")
    End Sub

    Private Sub frmFactory_Closed(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Closed
        Me.Dispose()
        Me.Close()
        ShowStatus("", "")
        RetreatTableOpened = False
        TableMenuEnable()
    End Sub
    Private Sub bunUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bunUpdate.Click
        db.Open()
        myDataAdapter.Update(myDataSet)
        db.Close()
        MsgBox("已经更新到数据库", , "退货数据表")
    End Sub
    Private Sub frmProduct_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
        TableName = CurrentTable
        Dim strSelectRetreat As String = "select * from Retreat"
        Dim cmdSelectRetreat As New SqlClient.SqlCommand(strSelectRetreat, db)
        myDataAdapter.SelectCommand = cmdSelectRetreat
        Dim xx As SqlCommandBuilder = New SqlCommandBuilder(myDataAdapter)
        db.Open()
        myDataAdapter.Fill(myDataSet)
        db.Close()
        bunAdd.Enabled = False
        Dim currRows() As DataRow = myDataSet.Tables(0).Select(Nothing, Nothing, DataViewRowState.CurrentRows)
        RowsMax = currRows.Length - 1
        If RowsMax < 0 Then
            myIndex = -1
            MsgBox("数据库中没有记录", , "退货数据表")
            bunPrevious.Enabled = False
            bunDelete.Enabled = False
            bunSearch.Enabled = False
            bunSave.Enabled = False
            bunNext.Enabled = False
        Else
            Rshowfield()
        End If
    End Sub

End Class