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Michael Yarbrough
995
Unable to sort databound tree nodes...
posted

I have a simple test here and cannot seem to get the nodes to accept sorting when they are bound. I even tried sorting the DataView of the table and binding to that but still no luck. Here is my example. I have 1 ultratree on the form called treeActive and am calling my Override.Sort  =Ascending in the InitializeNode section:

Imports Infragistics.Win

Imports Infragistics.Win.UltraWinTree

Public Class Form1 Public dsFilesToBurn As New DataSet("dsFilesToBurn")

Public tbl As New DataTable("FilesToBurn")

Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

CreateDataSet()

AddRows()

treeActive.SetDataBinding(dsFilesToBurn, "FilesToBurn")

treeActive.ExpandAll(ExpandAllType.Always)

'treeActive.Override.SortComparer = New NodeSorter(treeActive.Nodes(1), "Ascending")

'treeActive.Override.Sort = SortType.Ascending

End Sub

Private Sub CreateDataSet()

Dim c As DataColumn

c = New DataColumn("FileName")

With c

.DataType = GetType(String)

End With

tbl.Columns.Add(c)

c = New DataColumn("FileNameGUID")

With c

.DataType = GetType(String)

End With

tbl.Columns.Add(c)

c = New DataColumn("FileParentGUID")

With c

.DataType = GetType(String)

End With

tbl.Columns.Add(c)

c = New DataColumn("FileType")

With c

.DataType = GetType(String)

End With

tbl.Columns.Add(c)

c = New DataColumn("FileID") With c

c.AllowDBNull = False

c.DataType = GetType(Integer)

c.AutoIncrement = True

c.ReadOnly = True

End With

tbl.Columns.Add(c)

tbl.PrimaryKey = New DataColumn() {c}

c = New DataColumn("FilePathCD")

c.DataType = GetType(String)

c.MaxLength = 500

tbl.Columns.Add(c)

c = New DataColumn("FileIcon")c.DataType = GetType(Image)

tbl.Columns.Add(c)

c = New DataColumn("DirGUID")

c.DataType = GetType(String)

c.MaxLength = 50

tbl.Columns.Add(c)

'THIS SHOULD BE SET TO "<SOFTWARE LIBRARY>" IF IT IS FROM THE LIBRARY

'

c = New DataColumn("FilePathLocal")c.DataType = GetType(String)

c.MaxLength = 500

tbl.Columns.Add(c)

c = New DataColumn("CDGUID")c.DataType = GetType(String)

c.MaxLength = 50

tbl.Columns.Add(c)

c = New DataColumn("IsDownloaded")c.DataType = GetType(Boolean)

tbl.Columns.Add(c)

c = New DataColumn("FileSizeInt")

c.DataType = GetType(UInteger)

tbl.Columns.Add(c)

c = New DataColumn("FileSizeStr")c.DataType = GetType(String)

tbl.Columns.Add(c)

dsFilesToBurn.Tables.Add(tbl)

Dim dr As New DataRelation("dr", tbl.Columns("FileNameGUID"), tbl.Columns("FileParentGUID"))

dsFilesToBurn.Relations.Add(dr)

End Sub

Private Sub AddRows() Dim r As DataRow = dsFilesToBurn.Tables(0).NewRow

r("FileName") = "My InHouse App"

r("FileType") = "Folder"

r("FileNameGUID") = "1234"

dsFilesToBurn.Tables(0).Rows.Add(r)

r = dsFilesToBurn.Tables(0).NewRow

r("FileName") = "MyFile Folder"

r("FileType") = "Folder"

r("FileNameGUID") = "1222"

r("FileParentGUID") = "1234"

 

dsFilesToBurn.Tables(0).Rows.Add(r)

r = dsFilesToBurn.Tables(0).NewRow

r("FileName") = "BrownFile.exe"

r("FileType") = "File"

r("FileNameGUID") = "1212"

r("FileParentGUID") = "1234"

r("FileSizeStr") = "54.2 MB"

r("FileSizeInt") = 56623104

dsFilesToBurn.Tables(0).Rows.Add(r)

r = dsFilesToBurn.Tables(0).NewRow

r("FileName") = "ADumbFile.exe"

r("FileType") = "File"

r("FileNameGUID") = "1616"

r("FileParentGUID") = "1234"

r("FileSizeStr") = "54.2 MB"

r("FileSizeInt") = 56623104

dsFilesToBurn.Tables(0).Rows.Add(r)

r = dsFilesToBurn.Tables(0).NewRow

r("FileName") = "CoolFile.exe"

r("FileType") = "File"

r("FileNameGUID") = "1414"

r("FileParentGUID") = "1222"

r("FileSizeStr") = "54.2 MB"

r("FileSizeInt") = 56623104

dsFilesToBurn.Tables(0).Rows.Add(r)

r = dsFilesToBurn.Tables(0).NewRow

r("FileName") = "A New File.abc"

r("FileType") = "File"

r("FileNameGUID") = "1111"

r("FileParentGUID") = "1222"

r("FileSizeStr") = "13.4 MB"

r("FileSizeInt") = 14050914

dsFilesToBurn.Tables(0).Rows.Add(r)

r = dsFilesToBurn.Tables(0).NewRow

r("FileName") = "ABigFle.123"

r("FileType") = "File"

r("FileNameGUID") = "1223"

r("FileParentGUID") = "1222"

r("FileSizeStr") = "700 MB"

r("FileSizeInt") = 734003200

dsFilesToBurn.Tables(0).Rows.Add(r)

 

r = dsFilesToBurn.Tables(0).NewRow

r("FileName") = "NewAFile.exe"

r("FileType") = "File"

r("FileNameGUID") = "1515"

r("FileParentGUID") = "1222"

r("FileSizeStr") = "54.2 MB"

r("FileSizeInt") = 56623104

dsFilesToBurn.Tables(0).Rows.Add(r)

r = dsFilesToBurn.Tables(0).NewRow

r("FileName") = "JohnsFile.exe"

r("FileType") = "File"

r("FileNameGUID") = "1717"

r("FileParentGUID") = "1222"

r("FileSizeStr") = "54.2 MB"

r("FileSizeInt") = 56623104

dsFilesToBurn.Tables(0).Rows.Add(r)

r = dsFilesToBurn.Tables(0).NewRow

r("FileName") = "Some File.exe"

r("FileType") = "File"

r("FileNameGUID") = "1181"

r("FileParentGUID") = "1222"

r("FileSizeStr") = "54.2 MB"

r("FileSizeInt") = 56623104

dsFilesToBurn.Tables(0).Rows.Add(r)

End Sub

Private Sub treeActive_InitializeDataNode(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinTree.InitializeDataNodeEventArgs) Handles treeActive.InitializeDataNode

Try

If e.Node.IsRootLevelNode AndAlso e.Node.HasNodes Then

e.Node.Override.ShowExpansionIndicator = Infragistics.Win.UltraWinTree.ShowExpansionIndicator.CheckOnDisplay

End If

If (e.Node.Level = 0) AndAlso Not (e.Node.Cells("FileParentGUID").Value Is DBNull.Value) Then

e.Node.Visible = False

Else

e.Node.Visible = True

End If

Catch

End Try

Try

'JUST TRY TO SORT EVERYTHING ASCENDING

e.Node.Override.Sort = SortType.Ascending

Catch ex As Exception

End Try

End Sub

End Class

 

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