DataGridView doesn’t allow user to Delete Row

Question

I have a DataGridView as in another question and AllowUserToDeleteRows is set to true.

The docs say that IBindingList.AllowRemove should also be set to true. However, a List doesn't seem to have that interface, and it doesn't seem to need it. One can remove items from a List.

A similar question's answer suggests setting DataGridView.EditMode to EditOnKeystroke. But that doesn't help.

So - How can I get it to allow a user to Delete Rows?

possible duplicate of DataGridView delete row when DataSource is List<myClass> — manji

jsanalytics jsanalytics · Accepted Answer · 2015-08-24T12:27:14

I was able to delete it with no problem:

public class MyDataList : List<MyData>
{
    public MyDataList()
    {
        Add(new MyData { ID = 1, Name = "Name 1" });
        Add(new MyData { ID = 2, Name = "Name 2" });
        Add(new MyData { ID = 3, Name = "Name 3" });
        Add(new MyData { ID = 4, Name = "Name 4" });
        Add(new MyData { ID = 5, Name = "Name 5" });
    }
}


public class MyData
{
    public int ID { get; set; }
    public string Name { get; set; }
}

public partial class Form1 : Form
{
    BindingSource myDataListBindingSource;

    public Form1()
    {
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        myDataListBindingSource = new BindingSource();
        myDataListBindingSource.DataSource = new MyDataList();
        dataGridView1.DataSource = myDataListBindingSource;
    }
}

Result:

DataGridView doesn’t allow user to Delete Row

2 Answers