2024-12-11 C#: DatagridView Select last row

Source: https://stackoverflow.com/questions/3810722/datagridview-select-last-row

I have some trouble with setting the last row in my datagridview selected. I select the last row this way:

if (grid.Rows.Count > 0)
{
    try
    {
        grid.Rows[grid.Rows.Count - 1].Selected = true;
        grid.CurrentCell = grid.Rows[grid.Rows.Count - 1].Cells[1]
    }
    catch (IndexOutOfRangeException)
    { }
    catch (ArgumentOutOfRangeException)
    { }
}

When I execute this code I get an exception:
- IndexOutOfRangeException occurred: Index-1 does not have a value.
When I debug the Rowscollection and the corresponding Cells collection I see both collections are filled. The index also exists of the Rows and Cells collection.
I have no clue what I am doing wrong here. Someone who can help me out here? Thnx

Solution

dataGridView1.ClearSelection();//If you want

int nRowIndex = dataGridView1.Rows.Count - 1;
int nColumnIndex = 3;

dataGridView1.Rows[nRowIndex].Selected = true;
dataGridView1.Rows[nRowIndex].Cells[nColumnIndex].Selected = true;

//In case if you want to scroll down as well.
dataGridView1.FirstDisplayedScrollingRowIndex = nRowIndex;

Gives following output: (Last row, scrolled and selected)

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