將DataGridView的內容轉換爲C＃中的列表＃

Question

獲取DataGridView的內容並將這些值放入C＃列表中的最佳方式是什麼？

Answer 1

 List<MyItem> items = new List<MyItem>(); 
     foreach (DataGridViewRow dr in dataGridView1.Rows) 
     { 
      MyItem item = new MyItem(); 
      foreach (DataGridViewCell dc in dr.Cells) 
      { 
       ...build out MyItem....based on DataGridViewCell.OwningColumn and DataGridViewCell.Value 
      } 

      items.Add(item); 
     } 

Answer 2

或者LINQ的方式

var list = (from row in dataGridView1.Rows.Cast<DataGridViewRow>() 
      from cell in row.Cells.Cast<DataGridViewCell>() 
      select new 
      { 
      //project into your new class from the row and cell vars. 
      }).ToList(); 

Answer 3

var Result = dataGridView1.Rows.OfType<DataGridViewRow>().Select(
      r => r.Cells.OfType<DataGridViewCell>().Select(c => c.Value).ToArray()).ToList(); 

或獲得的值

var Result = dataGridView1.Rows.OfType<DataGridViewRow>().Select(
      r => r.Cells.OfType<DataGridViewCell>().ToDictionary(c => dataGridView1.Columns[c.OwningColumn].HeaderText, c => (c.Value ?? "").ToString() 
       ).ToList(); 

Answer 4

的字符串字典如果您在使用數據源綁定你的列表，你可以通過轉換回，

List<Class> myClass= DataGridView.Datasource as List<Class> ; 

Answer 5

IEnumerable.OfType<TResult>擴展方法可以成爲你最好的朋友。以下是我如何通過LINQ查詢完成的：

List<MyItem> items = new List<MyItem>(); 
dataGridView1.Rows.OfType<DataGridViewRow>().ToList<DataGridViewRow>().ForEach(
       row => 
       { 
        foreach (DataGridViewCell cell in row.Cells) 
        { 
         //I've assumed imaginary properties ColName and ColValue in MyItem class 
         items.Add(new MyItem { ColName = cell.OwningColumn.Name, ColValue = cell.Value }); 
        } 
       });