/// <summary>
/// 附件列表删除
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btn_delete_Click(object sender, RoutedEventArgs e)
{
MessageBoxResult result = MessageBox.Show("确认要删除选中项？", "提示", MessageBoxButton.YesNo);
if (result == MessageBoxResult.Yes)
{
if (AttachmentSources != null || AttachmentSources.Count > 0)
{
List <FileAttachment> delatt = AttachmentSources.Where(p => p.IsChecked == true).ToList();
foreach (FileAttachment att in delatt)
{
att.DataState = DataStateEnum.Deleted;
}
UpdateAttSource();
chkAll.IsChecked = false;
}
if (AttachmentSources == null || AttachmentSources.Count == 0)
{
xpsDocViewr.Document = null;
}
}
}
/// <summary>
/// 更新附件数据源
/// </summary>
private void UpdateAttSource()
{
CurrentFile.Attachments = new List <FileAttachment>(AttachmentSources);
dgList.ItemsSource = AttachmentSources.Where(r => r.DataState != DataStateEnum.Deleted);
}