c# - 错误：无法将“System.Windows.Controls.TextBlock”类型的对象转换为“System.IConvertible”类型

Question

我想在 datagrid wpf 中获得一个单元格的值，我像 2,3 等那样实现这个。然后我想将一个 int 值与这个单元格的值进行比较，但我无法获得单元格的值。如何获取单元格的值？我的代码：

DataGridRow row = (DataGridRow)dataGrid.ItemContainerGenerator.ContainerFromItem(e.AddedItems[0]);
            if (row != null)
            {
                DataGridCellsPresenter presenter = GetVisualChild<DataGridCellsPresenter>(row);

                DataGridCell cell1 = presenter.ItemContainerGenerator.ContainerFromIndex(2) as DataGridCell;
                DataGridCell cell2 = presenter.ItemContainerGenerator.ContainerFromIndex(4) as DataGridCell;
                DataGridCell cell3 = presenter.ItemContainerGenerator.ContainerFromIndex(6) as DataGridCell;

                SMBPModelDataContext db = new SMBPModelDataContext();
                StoreDistributionInformation psaRow = MyDataGrid.SelectedItem as StoreDistributionInformation;

    if (psaRow.Day1 != Convert.ToInt32((cell1.Content)))
    {

    }

我在标题中出现此错误：psaRow.Day1 != Convert.ToInt32((cell1.Content))

提前致谢