我使用以下代码获取datagidview＃1的副本：
<?php session_start(); ?>此代码将所有标题，列和行复制到第二个Private Sub copytable()
Dim sourceGrid As DataGridView = Me.DataGridView1
Dim targetGrid As DataGridView = Me.DataGridView2
Dim targetRows = New List(Of DataGridViewRow)
For Each sourceRow As DataGridViewRow In sourceGrid.Rows
If (Not sourceRow.IsNewRow) Then
Dim targetRow = CType(sourceRow.Clone(), DataGridViewRow)
For Each cell As DataGridViewCell In sourceRow.Cells
targetRow.Cells(cell.ColumnIndex).Value = cell.Value
Next
targetRows.Add(targetRow)
End If
Next
'Clear target columns and then clone all source columns.
targetGrid.Columns.Clear()
For Each column As DataGridViewColumn In sourceGrid.Columns
targetGrid.Columns.Add(CType(column.Clone(), DataGridViewColumn))
Next
'It's recommended to use the AddRange method (if available)
'when adding multiple items to a collection.
targetGrid.Rows.AddRange(targetRows.ToArray())
End Sub
，然后我想过滤第二个DataGridView，但我不能（BindingSource.Filter）绑定源不存在。
如何为第二个DataGridView ??
Bindingsource