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Form1.vb
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Form1.vb
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Imports System
Imports System.IO
Imports System.Windows.Forms
Imports DevExpress.Utils
Namespace XtraPivotGrid_SaveLoadCollapsedState
Partial Public Class Form1
Inherits Form
Private layoutStream As New MemoryStream()
Private collapseStateStream As New MemoryStream()
Public Sub New()
InitializeComponent()
btnClear.Enabled = False
End Sub
Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
Dim adapter As New nwindDataSetTableAdapters.ProductReportsTableAdapter()
pivotGridControl1.DataSource = adapter.GetData()
End Sub
Private Sub btnSave_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSave.Click
If pivotGridControl1.Fields.Count > 0 Then
layoutStream.Dispose()
layoutStream = New MemoryStream()
pivotGridControl1.SaveLayoutToStream(layoutStream, OptionsLayoutBase.FullLayout)
collapseStateStream.Dispose()
collapseStateStream = New MemoryStream()
pivotGridControl1.SaveCollapsedStateToStream(collapseStateStream)
btnClear.Enabled = True
End If
End Sub
Private Sub btnLoad_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnLoad.Click
If layoutStream.Length > 0 AndAlso collapseStateStream.Length > 0 Then
layoutStream.Seek(0, SeekOrigin.Begin)
pivotGridControl1.RestoreLayoutFromStream(layoutStream, OptionsLayoutBase.FullLayout)
collapseStateStream.Seek(0, SeekOrigin.Begin)
pivotGridControl1.LoadCollapsedStateFromStream(collapseStateStream)
End If
End Sub
Private Sub btnClear_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnClear.Click
If layoutStream.Length > 0 AndAlso collapseStateStream.Length > 0 Then
pivotGridControl1.Fields.Clear()
End If
End Sub
End Class
End Namespace