在 2.0 中使用时，出现错误，跨线程操作无效：从创建它的线程以外的线程访问控制 'ListView1'

Question

请帮我转换编码...

Public Sub FillListView(ByVal lstbox As ListView, ByVal colwidth As Integer, ByVal dset As DataSet)
    Dim c As DataColumn
    For Each c In dset.Tables(0).Columns
        Dim h As New ColumnHeader
        h.Text = c.ColumnName
        h.Width = colwidth
        ' lstbox.Invoke(
        lstbox.Columns.Add(h) ''Problem here
        ') 
    Next

    Dim dt As DataTable = dset.Tables(0)
    Dim str(dset.Tables(0).Columns.Count) As String

    Dim rr As DataRow
    For Each rr In dt.Rows
        For col As Integer = 0 To dset.Tables(0).Columns.Count - 1
            str(col) = rr(col).ToString()
        Next
        Dim ii As New ListViewItem(str)
        lstbox.Items.Add(ii) ''Problem here
    Next
End Sub

Answer 1

推测您必须从 UI 线程以外的线程调用它。为了修复它，您需要调用回 UI 线程。这是您可以做到的一种方法：

Public Delegate Sub FillListView(ByVal lstbox As ListView, ByVal colwidth As Integer, ByVal dset As DataSet)

Public Sub FillListView(ByVal lstbox As ListView, ByVal colwidth As Integer, ByVal dset As DataSet)

    ' Invoke back to the UI thread, if necessary
    If lstbox.InvokeRequired Then
        lstbox.Invoke(New FillListViewDelegate(AddressOf FillListView), listbox, colWidth, dset))
        Exit Sub
    End If

    Dim c As DataColumn
    For Each c In dset.Tables(0).Columns
        Dim h As New ColumnHeader
        h.Text = c.ColumnName
        h.Width = colwidth
        lstbox.Columns.Add(h)
    Next

    Dim dt As DataTable = dset.Tables(0)
    Dim str(dset.Tables(0).Columns.Count) As String

    Dim rr As DataRow
    For Each rr In dt.Rows
        For col As Integer = 0 To dset.Tables(0).Columns.Count - 1
            str(col) = rr(col).ToString()
        Next
        Dim ii As New ListViewItem(str)
        lstbox.Items.Add(ii)
    Next
End Sub

在 2.0 中使用时，出现错误，跨线程操作无效：从创建它的线程以外的线程访问控制 'ListView1'

when use in 2.0, i got the error,Cross-thread operation not valid: Control 'ListView1' accessed from a thread other than the thread it was created on

vb.net

visual-studio-2008