Question

我正在尝试使用下面的代码将数据从剪贴板粘贴到WPF Datagrid的底部，但它一直说索引是负数或高于行数。

CanUSerAddRows设置为true

string text = Clipboard.GetText();

string[] line = Regex.Split(text , ",");

foreach (string word in line)
{

   int index = DgInvoiceLines.Items.Count;
   string prodCode = word ;

   DataGridCell ProdCodeCell = GetCell(index, 0);
   DataGridCellInfo pcell = new DataGridCellInfo(ProdCodeCell);
   string ProdCellContentType = pcell.Column.GetCellContent(pcell.Item).GetType().Name.ToString();
   if (ProdCellContentType == "TextBlock") ((TextBlock)cell.Column.GetCellContent(cell.Item)).Text = prodCode;
   else if (ProdCellContentType == "TextBox") ((TextBox)cell.Column.GetCellContent(cell.Item)).Text = prodCode;

   DataGridCell CommentCodeCell = GetCell(index, 12);
   DataGridCellInfo Ccell = new DataGridCellInfo(CommentCodeCell);
   string CommentCellContentType = Ccell.Column.GetCellContent(Ccell.Item).GetType().Name.ToString();
   if (CommentCellContentType == "TextBlock") ((TextBlock)cell.Column.GetCellContent(cell.Item)).Text = "Ord";
   else if (CommentCellContentType == "TextBox") ((TextBox)cell.Column.GetCellContent(cell.Item)).Text = "Ord";

   index = index + 1;
}

修改

如果我将索引更改为0，则会抛出空引用异常

非常感谢任何帮助。感谢

Answer 1

在我看来，最好的方法是创建额外的数据对象，以添加到您的网格（我假设）绑定到的底层集合中。如果网格ItemsSource是ObservableCollection<T>，则新行将自动显示

将数据粘贴到WPF Datagrid中

1 个答案: