Question

我是datagridview的新手。我有datagrid cellformatting事件。当此事件被触发时，e.Value将变为null。如果我将数据源与Bindinglist绑定，那么如果我直接绑定IList，则e.Value为Null，我得到了正确的值。

private void Form1_Load(object sender, EventArgs e)
{
   IList<MyClass> myClassList = new List<MyClass>();
   myClassList.Add(new MyClass());
   myClassList.Add(new MyClass());

   BindingList<MyClass> myClassDS = new BindingList<MyClass>(myClassList);
   var source = new BindingSource(myClassDS, null);

   dataGridView1.DataSource = source; //e.Value is null here
   //dataGridView.DataSource = myClassList; //This is working fine
}

private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
   //e.Value is null. here i should get current cell value.
}

Answer 1

检查以下值：

dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value

在cellformatting中，使用BindingList时e.value属性为null

1 个答案: