DataGrid绑定DataTable出错

直接用DataGrid.ItemSource = DataTable.DefaultView时会出现以下错误：

target element is 'TextBlock' (Name=''); target property is 'Text

需要用CollectionViewSource来做中间转换 .另外实时更新数据，所以不能把它做成StaticResource。

要想DataGrid render速度快，需要支持虚拟化，及设置列宽和行高。

<toolkit:DataGrid VirtualizingStackPanel.VirtualizationMode="Recycling" 
                                      VirtualizingStackPanel.IsVirtualizing="True" 
                                      EnableColumnVirtualization="True"
                                      EnableRowVirtualization="True"
                                      RowHeight="23"
                                      ColumnWidth="100"
                                      ScrollViewer.HorizontalScrollBarVisibility="Visible"
                                      ScrollViewer.VerticalScrollBarVisibility="Visible"
                                      Name="DgdData" Grid.Row="0" AutoGenerateColumns="True" DataContext="{Binding DataTableSource}" ItemsSource="{Binding}" />
                    

 private void BtnFirstPage_Click(object sender, RoutedEventArgs e)
        {
            this.mData.DataPageNum = 1;
            this.SetDisData(this.mData.DataPageNum, this.mData.DataPageSize);
        }

        private void BtnPrevPage_Click(object sender, RoutedEventArgs e)
        {
            this.mData.DataPageNum--;
            this.mData.DataPageNum = this.mData.DataPageNum > 1 ? this.mData.DataPageNum : 1;
            this.SetDisData(this.mData.DataPageNum, this.mData.DataPageSize);
        }

        private void BtnNextPage_Click(object sender, RoutedEventArgs e)
        {
            int maxPageNum = (int)Math.Ceiling((double)this.mData.Times.Count / (double)this.mData.DataPageSize);
            this.mData.DataPageNum++;
            this.mData.DataPageNum = this.mData.DataPageNum > maxPageNum ? maxPageNum : this.mData.DataPageNum;
            this.SetDisData(this.mData.DataPageNum, this.mData.DataPageSize);
        }

        private void BtnLastPage_Click(object sender, RoutedEventArgs e)
        {
            int maxPageNum = (int)Math.Ceiling((double)this.mData.Times.Count / (double)this.mData.DataPageSize);
            this.mData.DataPageNum = maxPageNum;
            this.SetDisData(this.mData.DataPageNum, this.mData.DataPageSize);
        }
        
        private void SetDisData(int pageNum, int pageSize)
        {
            DataRow row;
            int startRow = (pageNum - 1) * pageSize;
            int endRow = startRow + pageSize;
            endRow = this.mData.Times.Count > endRow ? endRow : this.mData.Times.Count;
            this.mDtData.Rows.Clear();

            CollectionViewSource itemCollectionViewSource2 = new CollectionViewSource();
            itemCollectionViewSource2.Source = this.mDtData;
            DgdData.DataContext = itemCollectionViewSource2;

        }