DataGridView navigating to next row

Question

I have a C# winforms application and I am trying to get a button working that will select the next row in a datagridview after the one curently selected.

The code I

Answer 1

First, set "Multiselect" property of datagridview to false.

int currentRow = dataGridView1.SelectedRows[0].Index;
if (currentRow < dataGridView1.RowCount)
{
    dataGridView1.Rows[++currentRow].Selected = true;
}

It will select the next row in the datagridview.

Answer 2

It's here:

dataGridView1.SelectedRows[selectedRowCount]

If you have 3 selected rows then selectedRowCount = 3 and there are three rows with indexes: 0, 1, 2.

You are trying to access #3 which doesn't exist.

Answer 3

dgv_PhotoList.Rows[dgv_PhotoList.CurrentRow.Index+1].Selected = true;

Answer 4

this example to read value cell or column is number 4 of datagridview

        int courow = dataGridView1.RowCount-1;
        for (int i=0; i < courow; i++)
        {
            MessageBox.Show(dataGridView1.Rows[i].Cells[4].Value.ToString());
        }

Answer 5

try this:

 int nRow;
private void Form1_Load(object sender, EventArgs e)
{

    nRow = dataGridView1.CurrentCell.RowIndex;
}

private void button1_Click(object sender, EventArgs e)
{
    if (nRow < dataGridView1.RowCount )
    {
        dataGridView1.Rows[nRow].Selected = false;
        dataGridView1.Rows[++nRow].Selected = true;
    }
}

Answer 6

I prefer this row selection :

First check if no multiselect : number_of_data Then get the select cell (or row) : row_index

private void next_click(object sender, EventArgs e)
    {
        int number_of_data = dataGridView.SelectedRows.Count;
        if (number_of_data > 1) return;

        int row_index = dataGridView.SelectedCells[0].RowIndex;

        if (row_index < dataGridView.RowCount-1)
        {
            dataGridView.Rows[row_index++].Selected = false;
            dataGridView.Rows[row_index].Selected = true;
        }

        // Do something 

    }