66.142.0.142/66.142.0.142.tar/66.142.0.142/tblPartsedit.aspx.vb

Text File | 2010-08-24 | 13KB | 508 lines

Imports System.Data
Imports System.Data.Common
Imports System.Xml
Imports System.IO
Imports System.Data.OleDb

'
' ASP.NET code-behind class (Page)
'

Partial Class tblPartsedit
    Inherits AspNetMaker7_tfpssnet

    ' Page object
    Public tblParts_edit As ctblParts_edit

    '
    ' Page Class
    '
    Class ctblParts_edit
        Inherits AspNetMakerPage
        Implements IDisposable

        ' Used by system generated functions
        Private RsWrk As Object, sSqlWrk As String, sWhereWrk As String

        Private arwrk As Object

        Private armultiwrk() As String

        ' Page URL
        Public ReadOnly Property PageUrl() As String
            Get
                Dim Url As String = ew_CurrentPage() & "?"
                If tblParts.UseTokenInUrl Then Url = Url & "t=" & tblParts.TableVar & "&" ' Add page token
                Return Url
            End Get
        End Property

        ' Validate page request
        Public Function IsPageRequest() As Boolean
            Dim Result As Boolean
            If tblParts.UseTokenInUrl Then
                Result = False
                If ObjForm IsNot Nothing Then
                    Result = (tblParts.TableVar = ObjForm.GetValue("t"))
                End If
                If ew_Get("t") <> "" Then
                    Result = (tblParts.TableVar = ew_Get("t"))
                End If
                Return Result
            End If
            Return True
        End Function

        ' tblParts
        Public Property tblParts() As ctblParts
            Get
                Return ParentPage.tblParts
            End Get
            Set(ByVal v As ctblParts)
                ParentPage.tblParts = v
            End Set
        End Property

        ' tblParts
        Public Property tblEmployees() As ctblEmployees
            Get
                Return ParentPage.tblEmployees
            End Get
            Set(ByVal v As ctblEmployees)
                ParentPage.tblEmployees = v
            End Set
        End Property

        '
        '  Constructor
        '  - init objects
        '  - open connection
        '
        Public Sub New(ByRef APage As AspNetMaker7_tfpssnet)
            m_ParentPage = APage
            m_Page = Me
            m_PageID = "edit"
            m_PageObjName = "tblParts_edit"
            m_PageObjTypeName = "ctblParts_edit"

            ' Table Name
            m_TableName = "tblParts"

            ' Initialize table object
            tblParts = New ctblParts(Me)
            tblEmployees = New ctblEmployees(Me)

            ' Connect to database
            Conn = New cConnection()
        End Sub

        '
        '  Subroutine Page_Init
        '  - called before page main
        '  - check Security
        '  - set up response header
        '  - call page load events
        '
        Public Sub Page_Init()
            Security = New cAdvancedSecurity(Me)
            If Not Security.IsLoggedIn() Then Security.AutoLogin()
            If Not Security.IsLoggedIn() Then
                Security.SaveLastUrl()
                Page_Terminate("login.aspx")
            End If

            ' Table Permission loading event
            Security.TablePermission_Loading()
            Security.LoadCurrentUserLevel(TableName)

            ' Table Permission loaded event
            Security.TablePermission_Loaded()
            If Not Security.CanEdit Then
                Security.SaveLastUrl()
                Page_Terminate("tblPartslist.aspx")
            End If

            ' User ID loading event
            Security.UserID_Loading()
            If Security.IsLoggedIn() Then Call Security.LoadUserID()

            ' User ID loaded event
            Security.UserID_Loaded()

            ' Global page loading event (in ewglobal*.vb)
            ParentPage.Page_Loading()

            ' Page load event, used in current page
            Page_Load()
        End Sub

        '
        '  Class terminate
        '  - clean up page object
        '
        Public Sub Dispose() Implements IDisposable.Dispose
            Page_Terminate("")
        End Sub

        '
        '  Sub Page_Terminate
        '  - called when exit page
        '  - clean up connection and objects
        '  - if URL specified, redirect to URL
        '
        Sub Page_Terminate(url As String)

            ' Page unload event, used in current page
            Page_Unload()

            ' Global page unloaded event (in ewglobal*.vb)
            ParentPage.Page_Unloaded()

            ' Close connection
            Conn.Dispose()
            Security = Nothing
            tblParts.Dispose()
            tblEmployees.Dispose()

            ' Go to URL if specified
            If url <> "" Then
                HttpContext.Current.Response.Clear()
                HttpContext.Current.Response.Redirect(url)
            End If
        End Sub

    '
    ' Page main processing
    '
    Sub Page_Main()

        ' Load key from QueryString
        If ew_Get("prtID") <> "" Then
            tblParts.prtID.QueryStringValue = ew_Get("prtID")
        End If

        ' Create form object
        ObjForm = New cFormObj
        If ObjForm.GetValue("a_edit") <> "" Then
            tblParts.CurrentAction = ObjForm.GetValue("a_edit") ' Get action code
            LoadFormValues() ' Get form values

            ' Validate Form
            If Not ValidateForm() Then
                tblParts.CurrentAction = "" ' Form error, reset action
                Message = ParentPage.gsFormError
                LoadRow() ' Restore row
                RestoreFormValues() ' Restore form values if validate failed
            End If
        Else
            tblParts.CurrentAction = "I" ' Default action is display
        End If

        ' Check if valid key
        If ew_Empty(tblParts.prtID.CurrentValue) Then Page_Terminate("tblPartslist.aspx") ' Invalid key, return to list
        Select Case tblParts.CurrentAction
            Case "I" ' Get a record to display
                If Not LoadRow() Then ' Load Record based on key
                    Message = "No records found" ' No record found
                    Page_Terminate("tblPartslist.aspx") ' No matching record, return to list
                End If
            Case "U" ' Update
                tblParts.SendEmail = True ' Send email on update success
                If EditRow() Then ' Update Record based on key
                    Message = "Update succeeded" ' Update success
                    Dim sReturnUrl As String = tblParts.ReturnUrl
                    Page_Terminate(sReturnUrl) ' Return to caller
                Else
                    LoadRow() ' Restore row
                    RestoreFormValues() ' Restore form values if update failed
                End If
        End Select

        ' Render the record
        tblParts.RowType = EW_ROWTYPE_EDIT ' Render as edit

        ' Render row
        RenderRow()
    End Sub

    '
    ' Get upload file
    '
    Sub GetUploadFiles()

        ' Get upload data
    End Sub

    '
    ' Load default values
    '
    Sub LoadDefaultValues()
    End Sub

    '
    ' Load form values
    '
    Sub LoadFormValues()
        tblParts.prtDescription.FormValue = ObjForm.GetValue("x_prtDescription")
        tblParts.prtDescription.OldValue = ObjForm.GetValue("o_prtDescription")
        tblParts.prtID.FormValue = ObjForm.GetValue("x_prtID")
    End Sub

    '
    ' Restore form values
    '
    Sub RestoreFormValues()
        tblParts.prtDescription.CurrentValue = tblParts.prtDescription.FormValue
        tblParts.prtID.CurrentValue = tblParts.prtID.FormValue
    End Sub

    '
    ' Load row based on key values
    '
    Function LoadRow() As Boolean
        Dim RsRow As OleDbDataReader
        Dim sFilter As String = tblParts.KeyFilter

        ' Row Selecting event
        tblParts.Row_Selecting(sFilter)

        ' Load SQL based on filter
        tblParts.CurrentFilter = sFilter
        Dim sSql As String = tblParts.SQL

        ' Write SQL for debug
        If EW_DEBUG_ENABLED Then ew_Write(sSql)
        Try
            RsRow = Conn.GetTempDataReader(sSql)
            If Not RsRow.Read() Then
                Return False
            Else
                LoadRowValues(RsRow) ' Load row values

                ' Row Selected event
                tblParts.Row_Selected(RsRow)
                Return True
            End If
        Catch
            If EW_DEBUG_ENABLED Then Throw
            Return False
        Finally
            Conn.CloseTempDataReader()
        End Try
    End Function

    '
    ' Load row values from recordset
    '
    Sub LoadRowValues(ByRef RsRow As OleDbDataReader)
        tblParts.prtID.DbValue = RsRow("prtID")
        tblParts.prtDescription.DbValue = RsRow("prtDescription")
    End Sub

    '
    ' Render row values based on field settings
    '
    Sub RenderRow()

        ' Row Rendering event
        tblParts.Row_Rendering()

        '
        '  Common render codes for all row types
        '
        ' prtDescription

        tblParts.prtDescription.CellCssStyle = ""
        tblParts.prtDescription.CellCssClass = ""

        '
        '  View  Row
        '

        If tblParts.RowType = EW_ROWTYPE_VIEW Then ' View row

            ' prtDescription
            tblParts.prtDescription.ViewValue = tblParts.prtDescription.CurrentValue
            tblParts.prtDescription.CssStyle = ""
            tblParts.prtDescription.CssClass = ""
            tblParts.prtDescription.ViewCustomAttributes = ""

            ' View refer script
            ' prtDescription

            tblParts.prtDescription.HrefValue = ""

        '
        '  Edit Row
        '

        ElseIf tblParts.RowType = EW_ROWTYPE_EDIT Then ' Edit row

            ' prtDescription
            tblParts.prtDescription.EditCustomAttributes = ""
            tblParts.prtDescription.EditValue = ew_HtmlEncode(tblParts.prtDescription.CurrentValue)

            ' Edit refer script
            ' prtDescription

            tblParts.prtDescription.HrefValue = ""
        End If

        ' Row Rendered event
        tblParts.Row_Rendered()
    End Sub

    '
    ' Validate form
    '
    Function ValidateForm() As Boolean

        ' Initialize
        ParentPage.gsFormError = ""

        ' Check if validation required
        If Not EW_SERVER_VALIDATE Then Return (ParentPage.gsFormError = "")

        ' Return validate result
        Dim Valid As Boolean = (ParentPage.gsFormError = "")

        ' Form_CustomValidate event
        Dim sFormCustomError As String = ""
        Valid = Valid And Form_CustomValidate(sFormCustomError)
        If sFormCustomError <> "" Then
            If ParentPage.gsFormError <> "" Then ParentPage.gsFormError = ParentPage.gsFormError & "<br />"
            ParentPage.gsFormError = ParentPage.gsFormError & sFormCustomError
        End If
        Return Valid
    End Function

    '
    ' Update record based on key values
    '
    Function EditRow() As Boolean
        Dim RsEdit As OleDbDataReader, RsChk As OleDbDataReader
        Dim sSql As String, sFilter As String
        Dim sSqlChk As String, sFilterChk As String
        Dim bUpdateRow As Boolean
        Dim RsOld As OrderedDictionary
        Dim sIdxErrMsg As String
        Dim Rs As New OrderedDictionary
        sFilter = tblParts.KeyFilter
        If tblParts.prtDescription.CurrentValue <> "" Then ' Check field with unique index
            sFilterChk = "(prtDescription = '" & ew_AdjustSql(tblParts.prtDescription.CurrentValue) & "')"
            sFilterChk = sFilterChk & " AND NOT (" & sFilter & ")"
            tblParts.CurrentFilter = sFilterChk
            sSqlChk = tblParts.SQL
            Try
                RsChk = Conn.GetDataReader(sSqlChk)
                If RsChk.Read() Then
                    sIdxErrMsg = "Duplicate value '%v' for unique index '%f'".Replace("%f", "prtDescription")
                    sIdxErrMsg = sIdxErrMsg.Replace("%v", tblParts.prtDescription.CurrentValue)
                    Message = sIdxErrMsg
                    Return False
                End If
            Catch e As Exception
                If EW_DEBUG_ENABLED Then Throw
                Message = e.Message
                Return False
            Finally
                RsChk.Close()
                RsChk.Dispose()
            End Try
        End If
        tblParts.CurrentFilter  = sFilter
        sSql = tblParts.SQL
        Try
            RsEdit = Conn.GetDataReader(sSql)
        Catch e As Exception
            If EW_DEBUG_ENABLED Then Throw
            Message = e.Message
            RsEdit.Close()
            EditRow = False
        End Try
        If Not RsEdit.Read() Then
            RsEdit.Close()
            EditRow = False ' Update Failed
        Else
            RsOld = Conn.GetRow(RsEdit)
            RsEdit.Close()

            ' prtDescription
            tblParts.prtDescription.SetDbValue(tblParts.prtDescription.CurrentValue, System.DBNull.Value)
            Rs("prtDescription") = tblParts.prtDescription.DbValue

            ' Row Updating event
            bUpdateRow = tblParts.Row_Updating(RsOld, Rs)
            If bUpdateRow Then
                Try
                    tblParts.Update(Rs)
                    EditRow = True
                Catch e As Exception
                    If EW_DEBUG_ENABLED Then Throw
                    Message = e.Message
                    EditRow = False
                End Try
            Else
                If tblParts.CancelMessage <> "" Then
                    Message = tblParts.CancelMessage
                    tblParts.CancelMessage = ""
                Else
                    Message = "Update cancelled"
                End If
                EditRow = False
            End If
        End If

        ' Row Updated event
        If EditRow Then
            tblParts.Row_Updated(RsOld, Rs)
        End If
    End Function

        ' Page Load event
        Public Sub Page_Load()

            'HttpContext.Current.Response.Write("Page Load")
        End Sub

        ' Page Unload event
        Public Sub Page_Unload()

            'HttpContext.Current.Response.Write("Page Unload")
        End Sub

    ' Form Custom Validate event
    Public Function Form_CustomValidate(ByRef CustomError As String) As Boolean

        'Return error message in CustomError
        Return True
    End Function
    End Class

    '
    ' ASP.NET Page_Load event
    '

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Response.Buffer = EW_RESPONSE_BUFFER
        Response.Cache.SetCacheability(HttpCacheability.NoCache)

        ' Page init
        tblParts_edit = New ctblParts_edit(Me)
        tblParts_edit.Page_Init()

        ' Page main processing
        tblParts_edit.Page_Main()
    End Sub

    '
    ' ASP.NET Page_Unload event
    '

    Protected Sub Page_Unload(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Unload

        ' Dispose page object
        If tblParts_edit IsNot Nothing Then tblParts_edit.Dispose()
    End Sub
End Class