Datagridview添加新列并专注于此

Question

Hello sir i am having trouble in focusing my datagridview i have code like this

private void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
    DataGridViewColumn col = new DataGridViewTextBoxColumn();
    col.DataPropertyName = "2";
    col.HeaderText = "2".ToString();
    col.Name = "2".ToString();

    dataGridView1.Columns.Add(col);
    mm = e.RowIndex;
    dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex + 1].Selected=true;
}

And i want to focus this newly added column cell i have used upper code but its not working its focusing on second row because its a last column of current row i also tried this one

private void dataGridView1_ColumnAdded(object sender, DataGridViewColumnEventArgs e)
{
    if (mm != 0)
    { 
        dataGridView1.CurrentCell = dataGridView1.Rows[mm].Cells[e.Column.Index];
        dataGridView1.BeginEdit(true);
        dataGridView1.Rows[mm].Cells[e.Column.Index].Selected = true;
    }
}

This really confusing me i have tried all these but still its going to second row first cell what to do in this case?

[Updated]

  private void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
        {
DataGridViewColumn col = new DataGridViewTextBoxColumn();
                                    col.DataPropertyName = "";
                                    col.HeaderText = j.ToString();
                                    col.Name = j.ToString();
                                    dataGridView1.Columns.Add(col);
    }

And my code of tried

private void dataGridView1_ColumnAdded(object sender, DataGridViewColumnEventArgs e)
        {
            if (mm != 0)
            {
                dataGridView1.ClearSelection();
            dataGridView1.CurrentCell = dataGridView1.Rows[mm].Cells[e.Column.Index];

            dataGridView1.Rows[mm].Cells[e.Column.Index].Selected = true;
            }
        }

[Updated1]

Answer 1

The code you use is selecting cell . To select a column use this code instead:

dataGridView1.Columns[columnIndex].Selected = true;

Remember to deselect all the columns selected before if you want each column to be selected at a time. You can use some variable to save the last selected column and deselect it when needed.

UPDATE

Here is the code you should have tried:

private void dataGridView1_ColumnAdded(object sender, DataGridViewColumnEventArgs e)
{
   dataGridView1.ClearSelection();
   e.Column.Selected = true;
}