无法在DataGridView中编辑单元格更改不保存

如何解决无法在DataGridView中编辑单元格更改不保存

我创建了一个DataGridView，然后将其绑定到列表，如下所示：

public struct singleFieldFrame
        {
            //text and URL frames
            private string id;
            private string text;

            public string id_p { get { return id; } }

            public string text_p { get { return text; } set { text = value; } }

            public singleFieldFrame(string frameID,string data): this()
            {
                id = frameID;
                text = data.Replace('\0',';');
            }
        }
...
public static List<singleFieldFrame> singleFieldFrames;
...

// this struct and singleFieldFrames which is a List of singleFieldFrame reside in the public class
// dataGridView deFinition is inside another public class (namespace is the same)

    var bindingList1 = new BindingList<ID3v2tag.singleFieldFrame>(ID3v2tag.singleFieldFrames);
                    source1= new BindingSource(bindingList1,null);
                    dataGridView1.DataSource = source1;

我的问题是我无法更改dataGridView1中的任何单元格。当我退出编辑模式时，单元格值会自动重置为上一个。