Question

我可以执行以下操作，但它将我的DataGridView创建为Readonly。

var entries = (from e in dbContext.Entries
 where e.FromWord == "test"
  select new {
    EntryID = e.EntryID,
    WordClass = e.WordClass,
    Plural = e.Plural,
    FromWord = e.FromWord,
    LettersOnly = e.LettersOnly,
    Notes = e.notes
  }
).ToList();
dataGridView1.DataSource = entries;

如何使DataGridView可编辑？

如果我删除ToList（），我会收到一条错误消息，说我必须使用DataSet作为DataSource。有没有一种简单的方法来创建DataSet。我正在使用Entity-Framework和Database-First。

Answer 1

@Nobody，在上面的评论中，帮助我通过此链接回答了我的问题Editable DataGridView bound to a list

我创建了这个模型类：

  public class RowEntry
  {
    public int EntryID {get; set;}
    public string WordClass {get; set;}
    public bool Plural {get; set;}
    public string FromWord {get; set;}
    public string LettersOnly {get; set;}
    public string Notes { get; set; }
  }

然后只需将linq查询更改为 - 删除匿名类：

List<RowEntry> entries = (from e in dbContext.Entries
     where e.FromWord == "test"
      select new RowEntry {
        EntryID = e.EntryID,
        WordClass = e.WordClass,
        Plural = e.Plural,
        FromWord = e.FromWord,
        LettersOnly = e.LettersOnly,
        Notes = e.notes
      }
    ).ToList();
dataGridView1.DataSource = entries;

DataGridView现在可以编辑。我猜测匿名List类型的范围太有限，无法由DataGridView类编辑。

当DataSource是LIst＆lt;＆a;＆gt;时，如何使DataGridView在WinForms中可编辑

1 个答案: