Imports System.Data.SqlTypes
Imports System.Data.SqlClient
Imports DevComponents
Public Class clsUebersichtre

#Region "Deklarationen"
    Dim WithEvents evh As _Generic_Event_Handler.Generic_Event_Handler = Globals.Generic_Event_Handler


    Dim treedata As New DataSet

    Dim TreeaufbauSuche As Boolean = False
    Dim TreeaufbauNr As Integer = 0
    Dim FoundNode As Integer = 0
    Dim Searchstring As String = ""
    Public Treesearch As New AdvTree.AdvTree
    Dim Datenklasse As New _DataClass.DataClass
#End Region

#Region "Tree"

    Public Sub Load_Treeview(ByRef tree As DevComponents.AdvTree.AdvTree)
        Globals.treedata_for_search.Rows.Clear()
        treedata.Tables.Clear()
        TreeaufbauNr = -1
        For Each dr As DataRow In Globals.Objekt.Rows
            If dr.Item("Aktiv") = True Then
                Load_Treedata(dr.Item("Bezeichnung"))
                If Not (treedata Is Nothing) Then
                    Dim oView As DataView = treedata.Tables(0).DefaultView
                    Dim oTable As DataTable = oView.Table
                    Dim oDS As DataSet = New DataSet()
                    oDS.Tables.Add(oTable.Copy())

                    If oDS.Relations.Contains("SelfRefenceRelation") = False Then
                        oDS.Relations.Add("SelfRefenceRelation", _
                            oDS.Tables(0).Columns("id"), _
                            oDS.Tables(0).Columns("Parentid"))
                    End If
                    oTable.Dispose()
                    oTable = Nothing

                    LoadTreeView(oDS, tree)
                    oDS.Dispose()
                    oDS = Nothing
                End If
            End If

        Next

    End Sub

    Public Function Load_Treedata(ByVal datatype As String) As DataTable
        treedata.Tables.Clear()
        Dim selectcommand As New SqlCommand
        Dim connection As New SqlConnection()
        Dim da As New SqlDataAdapter("", connection)

        selectcommand.CommandText = "sp_get_struktur"
        selectcommand.Parameters.Add("@Root", SqlDbType.VarChar)
        selectcommand.Parameters(0).Value = datatype
        selectcommand.CommandType = CommandType.StoredProcedure
        selectcommand.Connection = connection
        Try
            connection.ConnectionString = Globals.sConnectionString
            connection.Open()
            da.SelectCommand = selectcommand
            da.Fill(treedata, "Tree")
            If treedata_for_search.Rows.Count < 1 Then
                For Each c As DataColumn In treedata.Tables(0).Columns
                    If c.ColumnName = "ErweiterteSuche" Then
                        Dim dc As New DataColumn
                        dc.ColumnName = "ErweiterteSuche"
                        dc.DataType = System.Type.GetType("System.String")
                        dc.DefaultValue = "                                                                                                                          "
                        Try
                            Globals.treedata_for_search.Columns.Add(dc)
                        Catch
                        End Try
                    Else
                        Try
                            Globals.treedata_for_search.Columns.Add(c.ColumnName)
                        Catch
                        End Try
                    End If
                Next
            End If
            For Each row As DataRow In treedata.Tables(0).Rows
                Globals.treedata_for_search.ImportRow(row)
            Next
        Catch ex As Exception
            'MsgBox(ex.Message)
        Finally
            connection.Close()
            da.Dispose()
            selectcommand.Dispose()
        End Try
    End Function

    Public Function Update_TreeSearch(ByVal fnkt As String, ByVal Keyvalue As String, ByVal treestruktur As DevComponents.AdvTree.AdvTree)
        If Globals.Update_Treedata_for_search = False Then
            'Exit Function

        End If
        treedata_for_search.Rows.Clear()
        GetAllNodes(treestruktur)
        Globals.Update_Treedata_for_search = False
    End Function

    Protected Function GetAllNodes(ByVal treestruktur As DevComponents.AdvTree.AdvTree) As List(Of TreeNode)

        Dim allNodes As List(Of TreeNode) = New List(Of TreeNode)()

        ' start recursion for each root node of the treeview
        For i As Integer = 0 To TreeStruktur.Nodes.Count - 1
            GetAllNodes(TreeStruktur.Nodes(i), allNodes)
        Next

        Return allNodes

    End Function

    Protected Sub GetAllNodes(ByVal subRoot As DevComponents.AdvTree.Node, ByVal allNodes As List(Of TreeNode))

        ' check for null (this can be removed since within th
        If (subRoot Is Nothing) Then
            Exit Sub
        End If

        ' add subroot
        Dim r As DataRow
        r = treedata_for_search.NewRow
        r.Item(0) = subRoot.Tag
        Try
            r.Item(1) = subRoot.Parent.Tag
        Catch
            r.Item(1) = 0
        End Try

        r.Item(2) = subRoot.Text
        r.Item(3) = subRoot.ImageIndex
        treedata_for_search.Rows.Add(r)
        'allNodes.Add(subRoot)
        ' add all it's children
        For i As Integer = 0 To subRoot.Nodes.Count - 1
            GetAllNodes(subRoot.Nodes(i), allNodes)
        Next


    End Sub


    ''' <summary>
    ''' Tree aufbauen
    ''' </summary>
    ''' <param name="oDS"></param>
    ''' <param name="oTreeview"></param>
    ''' <remarks></remarks>
    Private Sub LoadTreeView(ByVal oDS As DataSet, ByRef oTreeview As DevComponents.AdvTree.AdvTree)
        'Dim oTreeView As TreeView = New TreeView()
        Dim oDataRow As DataRow
        For Each oDataRow In oDS.Tables(0).Rows
            If Not oDataRow.IsNull("Parentid") Then
                If oDataRow.Item("Parentid") = 0 Then
                    'If oDataRow.IsNull("Parentid") Then
                    Dim oNode As New DevComponents.AdvTree.Node
                    oNode.Text = Trim(oDataRow("Bezeichnung").ToString())
                    Try
                        'oNode.ToolTipText = Trim(oDataRow("ErweiterteSuche").ToString)
                    Catch
                    End Try
                    oNode.Tag = oDataRow("id").ToString
                    oNode.ImageIndex = oDataRow("ImageIndex")
                    oTreeview.Nodes.Add(oNode)
                    RecursivelyLoadTree(oDataRow, oNode)
                End If
            End If
        Next oDataRow
        oDS.Dispose()
        oDS = Nothing
    End Sub
    ''' <summary>
    ''' Child-Nodes hinzufügen
    ''' </summary>
    ''' <param name="oDataRow"></param>
    ''' <param name="oNode"></param>
    ''' <remarks></remarks>
    Private Sub RecursivelyLoadTree(ByVal oDataRow As DataRow, ByRef oNode As DevComponents.AdvTree.Node)
        Dim oChildRow As DataRow
        For Each oChildRow In oDataRow.GetChildRows("SelfRefenceRelation")
            Dim oChildNode As New DevComponents.AdvTree.Node
            oChildNode.Text = Trim(oChildRow("Bezeichnung").ToString())
            oChildNode.Tag = oChildRow("id").ToString()
            oChildNode.ImageIndex = oChildRow("ImageIndex")
           
            oNode.Nodes.Add(oChildNode)
            RecursivelyLoadTree(oChildRow, oChildNode)
        Next oChildRow
    End Sub
    Public Function FindNode(ByVal _nodeCollection As AdvTree.NodeCollection, ByVal SearchVal As Integer, ByVal SearchString As String) As AdvTree.Node
        Dim tmpNode As AdvTree.Node
        For Each _child As AdvTree.Node In _nodeCollection
            If _child.Tag = SearchVal Then

                Return _child
            End If
            ' If InStr(UCase(_child.Text), UCase(SearchString)) > 0 Then
            ' Return _child
            ' End If
            tmpNode = FindNode(_child.Nodes, SearchVal, SearchString)
            If Not tmpNode Is Nothing Then
                Return tmpNode
            End If
        Next
        Return Nothing
    End Function


    Public Function TreeView_GetRootNode(objTV As AdvTree.AdvTree, node As AdvTree.Node) As _DataClass.DataClass.Struktur_Selectiontype
        Try
            If node.Parent Is Nothing Then
                Return Datenklasse.Get_Selectiontype(node.Text)
            Else
                Dim parent As AdvTree.Node = node.Parent
                While Not parent.Parent Is Nothing
                    parent = parent.Parent
                End While
                Return Datenklasse.Get_Selectiontype(Trim(parent.Text))
            End If
        Catch
        End Try
    End Function



    Public Function Init_Search()
        FoundNode = 0
        Searchstring = ""
        Me.Treesearch.Nodes.Clear()
    End Function

    Public Function SearchNode(ByRef tree As AdvTree.AdvTree, ByVal SearchString As String) As AdvTree.Node
        'Return tree.FindNodeByCellText(SearchString)

        Me.Treesearch.Nodes.Clear()
        For Each dr As DataRow In treedata_for_search.Rows
            'InStr(UCase(SearchString), UCase(dr.Item("Bezeichnung")))
            If InStr(UCase(dr.Item("Bezeichnung")), UCase(SearchString)) > 0 Or InStr(UCase(dr.Item("ErweiterteSuche")), UCase(SearchString)) > 0 Then
                Dim tn As New AdvTree.Node
                tn.Text = dr.Item("Bezeichnung")
                tn.Tag = dr.Item("id")
                Treesearch.Nodes.Add(tn)
            End If
        Next
        Return FindFirst(tree)
    End Function

    Public Function FindFirst(ByRef Tree As AdvTree.AdvTree) As AdvTree.Node
        Try
            If Me.Treesearch.Nodes.Count > 0 Then Me.Treesearch.SelectedNode = Me.Treesearch.Nodes(0)
            Return FindNode(Tree.Nodes, Treesearch.SelectedNode.Tag, "")
        Catch
        End Try
    End Function



    Public Function FindNextNode(ByRef tree As AdvTree.AdvTree) As AdvTree.Node
        Try
            Treesearch.SelectedNode = Treesearch.SelectedNode.NextNode
            If Treesearch.SelectedNode Is Nothing Then
                Return FindFirst(tree)
            End If
            Return Me.FindNode(tree.Nodes, Treesearch.SelectedNode.Tag, "")
        Catch ex As Exception

        End Try
    End Function

    Public Function FindPrevNode(ByRef tree As AdvTree.AdvTree) As AdvTree.Node
        Try
            Treesearch.SelectedNode = Treesearch.SelectedNode.PrevNode
            If Treesearch.SelectedNode Is Nothing Then
                Return FindLastNode(tree)
            End If
            Return Me.FindNode(tree.Nodes, Treesearch.SelectedNode.Tag, "")
        Catch ex As Exception
        End Try
    End Function

    Public Function FindLastNode(ByRef tree As AdvTree.AdvTree) As AdvTree.Node
        Try
            Treesearch.SelectedNode = Treesearch.Nodes(Treesearch.Nodes.Count - 1)
            Return Me.FindNode(tree.Nodes, Treesearch.SelectedNode.Tag, "")
        Catch ex As Exception
        End Try

    End Function

    Public Function Get_DBObjektname(ByVal type As Integer) As String
        For Each dr As DataRow In Globals.Objekt.Rows
            If dr.Item("Objektnr") = type Then
                Return dr.Item("DBOBject")
                Exit For
            End If
        Next
    End Function




#End Region

#Region "EVH-Ereignisse"
    Private Sub evh_Strucktur_Changed(ByVal keyvalue As Integer, ByVal treehanlde As Integer) Handles evh.Strucktur_Changed
        Try
           
        Catch

        End Try
    End Sub
#End Region

End Class