Public Class frmReaderType
    Inherits System.Windows.Forms.Form

#Region " Windows 窗體設計器生成的代碼 "

    Public Sub New()
        MyBase.New()

        '該調用是 Windows 窗體設計器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 調用之后添加任何初始化

    End Sub

    '窗體重寫 dispose 以清理組件列表。
    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 窗體設計器所必需的
    Private components As System.ComponentModel.IContainer

    '注意: 以下過程是 Windows 窗體設計器所必需的
    '可以使用 Windows 窗體設計器修改此過程。
    '不要使用代碼編輯器修改它。
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents btnModify As System.Windows.Forms.Button
    Friend WithEvents btnAdd As System.Windows.Forms.Button
    Friend WithEvents grdReaderType As System.Windows.Forms.DataGrid
    Friend WithEvents btnDelete As System.Windows.Forms.Button
    Friend WithEvents btnClose As System.Windows.Forms.Button
    Friend WithEvents btnSave As System.Windows.Forms.Button
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents txtCount As System.Windows.Forms.TextBox
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents txtLimit As System.Windows.Forms.TextBox
    Friend WithEvents txtReaderType As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.txtReaderType = New System.Windows.Forms.TextBox
        Me.Label1 = New System.Windows.Forms.Label
        Me.btnModify = New System.Windows.Forms.Button
        Me.btnAdd = New System.Windows.Forms.Button
        Me.grdReaderType = New System.Windows.Forms.DataGrid
        Me.btnDelete = New System.Windows.Forms.Button
        Me.btnClose = New System.Windows.Forms.Button
        Me.btnSave = New System.Windows.Forms.Button
        Me.Label2 = New System.Windows.Forms.Label
        Me.txtCount = New System.Windows.Forms.TextBox
        Me.Label3 = New System.Windows.Forms.Label
        Me.txtLimit = New System.Windows.Forms.TextBox
        CType(Me.grdReaderType, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'txtReaderType
        '
        Me.txtReaderType.Location = New System.Drawing.Point(224, 42)
        Me.txtReaderType.Name = "txtReaderType"
        Me.txtReaderType.Size = New System.Drawing.Size(120, 21)
        Me.txtReaderType.TabIndex = 12
        Me.txtReaderType.Text = ""
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(224, 8)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(80, 24)
        Me.Label1.TabIndex = 11
        Me.Label1.Text = "讀者類別"
        '
        'btnModify
        '
        Me.btnModify.Location = New System.Drawing.Point(80, 256)
        Me.btnModify.Name = "btnModify"
        Me.btnModify.Size = New System.Drawing.Size(48, 23)
        Me.btnModify.TabIndex = 10
        Me.btnModify.Text = "修改"
        '
        'btnAdd
        '
        Me.btnAdd.Location = New System.Drawing.Point(8, 256)
        Me.btnAdd.Name = "btnAdd"
        Me.btnAdd.Size = New System.Drawing.Size(48, 23)
        Me.btnAdd.TabIndex = 6
        Me.btnAdd.Text = "添加"
        '
        'grdReaderType
        '
        Me.grdReaderType.DataMember = ""
        Me.grdReaderType.HeaderForeColor = System.Drawing.SystemColors.ControlText
        Me.grdReaderType.Location = New System.Drawing.Point(8, 8)
        Me.grdReaderType.Name = "grdReaderType"
        Me.grdReaderType.ReadOnly = True
        Me.grdReaderType.Size = New System.Drawing.Size(200, 200)
        Me.grdReaderType.TabIndex = 5
        '
        'btnDelete
        '
        Me.btnDelete.Location = New System.Drawing.Point(152, 256)
        Me.btnDelete.Name = "btnDelete"
        Me.btnDelete.Size = New System.Drawing.Size(48, 23)
        Me.btnDelete.TabIndex = 7
        Me.btnDelete.Text = "刪除"
        '
        'btnClose
        '
        Me.btnClose.DialogResult = System.Windows.Forms.DialogResult.Cancel
        Me.btnClose.Location = New System.Drawing.Point(296, 256)
        Me.btnClose.Name = "btnClose"
        Me.btnClose.Size = New System.Drawing.Size(48, 23)
        Me.btnClose.TabIndex = 8
        Me.btnClose.Text = "關閉"
        '
        'btnSave
        '
        Me.btnSave.Location = New System.Drawing.Point(224, 256)
        Me.btnSave.Name = "btnSave"
        Me.btnSave.Size = New System.Drawing.Size(48, 23)
        Me.btnSave.TabIndex = 9
        Me.btnSave.Text = "保存"
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(224, 138)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(80, 24)
        Me.Label2.TabIndex = 11
        Me.Label2.Text = "可借書數"
        '
        'txtCount
        '
        Me.txtCount.Location = New System.Drawing.Point(224, 172)
        Me.txtCount.Name = "txtCount"
        Me.txtCount.Size = New System.Drawing.Size(120, 21)
        Me.txtCount.TabIndex = 12
        Me.txtCount.Text = ""
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(224, 73)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(80, 24)
        Me.Label3.TabIndex = 11
        Me.Label3.Text = "借書期限"
        '
        'txtLimit
        '
        Me.txtLimit.Location = New System.Drawing.Point(224, 107)
        Me.txtLimit.Name = "txtLimit"
        Me.txtLimit.Size = New System.Drawing.Size(120, 21)
        Me.txtLimit.TabIndex = 12
        Me.txtLimit.Text = ""
        '
        'frmReaderType
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.CancelButton = Me.btnClose
        Me.ClientSize = New System.Drawing.Size(352, 285)
        Me.Controls.Add(Me.txtReaderType)
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.btnModify)
        Me.Controls.Add(Me.btnAdd)
        Me.Controls.Add(Me.grdReaderType)
        Me.Controls.Add(Me.btnDelete)
        Me.Controls.Add(Me.btnClose)
        Me.Controls.Add(Me.btnSave)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.txtCount)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.txtLimit)
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog
        Me.MaximizeBox = False
        Me.Name = "frmReaderType"
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "設置讀者類別"
        CType(Me.grdReaderType, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private typeds As New DataSet

    Private Sub frmReaderType_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Try
            OleConn.SelectQuery("select * from 讀者類別", typeds)
            If typeds.Tables.Count > 0 Then
                grdReaderType.SetDataBinding(typeds, "Table")
                grdReaderType.CurrentRowIndex = 0
                txtReaderType.Text = grdReaderType.Item(0, 0)
                txtLimit.Text = grdReaderType.Item(0, 1)
                txtCount.Text = grdReaderType.Item(0, 2)
            End If
        Catch ex As Exception
            OleConn.DisplayError(ex)
        End Try
    End Sub

    Private Sub btnAdd_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAdd.Click
        If txtReaderType.Text = "" Then
            MsgBox("請輸入讀者類別")
            txtReaderType.Focus()
        ElseIf txtLimit.Text = "" Then
            MsgBox("請輸入借書期限")
            txtLimit.Focus()
        ElseIf txtCount.Text = "" Then
            MsgBox("請輸入可借書數")
            txtCount.Focus()
        Else
            Try
                Dim dr As DataRow = typeds.Tables(0).NewRow()
                dr("類別") = txtReaderType.Text
                dr("借書期限") = CInt(txtLimit.Text)
                dr("可借書數") = CInt(txtCount.Text)
                typeds.Tables(0).Rows.Add(dr)
                If grdReaderType.CurrentRowIndex > 0 Then
                    txtReaderType.Text = grdReaderType.Item(grdReaderType.CurrentRowIndex, 0)
                    txtLimit.Text = CStr(grdReaderType.Item(grdReaderType.CurrentRowIndex, 1))
                    txtCount.Text = CStr(grdReaderType.Item(grdReaderType.CurrentRowIndex, 2))
                Else
                    grdReaderType.CurrentRowIndex = 0
                    txtReaderType.Text = grdReaderType.Item(0, 0)
                    txtLimit.Text = CStr(grdReaderType.Item(0, 1))
                    txtCount.Text = CStr(grdReaderType.Item(0, 2))
                End If
            Catch ex As Exception
                OleConn.DisplayError(ex)
            End Try
            MsgBox("添加成功")
        End If
    End Sub

    Private Sub btnDelete_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDelete.Click
        If grdReaderType.CurrentRowIndex < 0 Then
            MsgBox("請先選擇要刪除的讀者類別")
            grdReaderType.Focus()
        Else
            Try
                Dim str As String = "類別='" & grdReaderType.Item(grdReaderType.CurrentRowIndex, 0) & "'"
                Dim dr As DataRow() = typeds.Tables(0).Select(str)
                dr(0).Delete()
            Catch ex As Exception
                OleConn.DisplayError(ex)
            End Try
            MsgBox("刪除成功")
        End If
    End Sub

    Private Sub btnModify_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnModify.Click
        If txtReaderType.Text = "" Then
            MsgBox("請輸入讀者類別")
            txtReaderType.Focus()
        ElseIf txtLimit.Text = "" Then
            MsgBox("請輸入借書期限")
            txtLimit.Focus()
        ElseIf txtCount.Text = "" Then
            MsgBox("請輸入可借書數")
            txtCount.Focus()
        ElseIf grdReaderType.CurrentRowIndex < 0 Then
            MsgBox("請先選擇要修改的讀者類別")
            grdReaderType.Focus()
        Else
            Try
                Dim str As String = "類別='" & grdReaderType.Item(grdReaderType.CurrentRowIndex, 0) & "'"
                Dim dr As DataRow() = typeds.Tables(0).Select(str)    'DR表示TABLES中的一行數據
                dr(0).BeginEdit()
                dr(0).Item("類別") = txtReaderType.Text
                dr(0).Item("借書期限") = CInt(txtLimit.Text)
                dr(0).Item("可借書數") = CInt(txtCount.Text)
                dr(0).EndEdit()
            Catch ex As Exception
                OleConn.DisplayError(ex)
            End Try
            MsgBox("修改成功")
        End If
    End Sub

    Private Sub grdReaderType_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles grdReaderType.MouseDown
        Dim hti As DataGrid.HitTestInfo
        hti = grdReaderType.HitTest(e.X, e.Y)        '使用X Y坐標獲取信息
        If hti.Type = DataGrid.HitTestType.Cell Or hti.Type = DataGrid.HitTestType.RowHeader Then
            txtReaderType.Text = grdReaderType.Item(hti.Row, 0)
            txtLimit.Text = CStr(grdReaderType.Item(hti.Row, 1))
            txtCount.Text = CStr(grdReaderType.Item(hti.Row, 2))
        End If
    End Sub

    Private Sub btnSave_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSave.Click
        Try
            OleConn.UpDate(typeds.Tables(0))
            typeds.AcceptChanges()
        Catch ex As Exception
            OleConn.DisplayError(ex)
        End Try
        MsgBox("保存成功")
    End Sub

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