c# .net datagridview SelectionChanged

Question

I'm racking my head over something that should be pretty simple to do. Its been a day now so I finally give up and I will ask the question. How can I actually trigger the selectionChanged event on the datagridview in .net? I would basically like to grab the row values when the user double-clicks/ or single clicks any where on a row. but I cant for the life of me get this event to fire even tough I read here that this should be the even I need to use?

private void dataGridView1_SelectionChanged(object sender, EventArgs e)
        {
            foreach (DataGridViewRow row in AddrGrid.SelectedRows)
            {
                string value1 = row.Cells[0].Value.ToString();
                string value2 = row.Cells[1].Value.ToString();
                //...
            }
        }

I have tried something similar to this but im hopeless I click on the datagrid cells or rows and this does not fire what I'm I missing?

when I click on a cell I get this event to fire.

private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {


            Addresses.aTyp = AddrGrid.Rows[AddrGrid.CurrentCell.RowIndex].Cells["Address Type"].Value.ToString();
            Addresses.seq  =  AddrGrid.Rows[AddrGrid.CurrentCell.RowIndex].Cells["Sequence"].Value.ToString();

        }

But I like to capture the double click or click on a row not just a cell. Any help would be most appreciated.

i'm pretty new to the event handling throw me a bone and tell me how to hook it up please. — Miguel, Dec 29 '12 at 06:31
what is AddrGrid this looks to be the issue.. I will post what it should look like — MethodMan, Dec 29 '12 at 06:39
What are you wanting to do exactly in this Event dataGridView1_CellContentClick — MethodMan, Dec 29 '12 at 06:45
im trying to select a few values from the grid and then close the form that the grid is displaying on. — Miguel, Dec 29 '12 at 06:46
What do you have set in the property window for DataGridView's MultiSelect property — MethodMan, Dec 29 '12 at 06:50

score 2 · Answer 1 · answered Dec 29 '12 at 06:41

private void dataGridView_SelectionChanged(object sender, EventArgs e) 
{
     foreach (DataGridViewRow row in dataGridView1.SelectedRows) 
     {
        string value1 = row.Cells[0].Value.ToString();
        string value2 = row.Cells[1].Value.ToString();
     }
 }

score 2 · Answer 2 · answered Dec 29 '12 at 06:46

you can use this

    private void AddrGrid_CellEnter(object sender, DataGridViewCellEventArgs e)
    {

        Addresses.aTyp = AddrGrid.Rows[AddrGrid.CurrentCell.RowIndex].Cells["Address Type"].Value.ToString();
        Addresses.seq = AddrGrid.Rows[AddrGrid.CurrentCell.RowIndex].Cells["Sequence"].Value.ToString();
    }

score 1 · Accepted Answer · answered Dec 29 '12 at 06:33

1

On your grid object lets call it 'foo'. You will do something like..

foo.SelectionChanged += dataGridView1_SelectionChanged

you will need to do that somewhere to wire the event up. I normally do it in the constructor for the form

answered Dec 29 '12 at 06:33

iamkrillin

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@MarkHall Good call, I always forget that option is there – iamkrillin Dec 29 '12 at 06:36
I feel like such an idiot this is what I was trying to do ! thank you for pointing me in the right direction. – Miguel Dec 29 '12 at 06:48

score 0 · Answer 4 · answered Jan 23 '20 at 22:19

Many answers relating to the selectionchanged event for a DataGridview use "DG1.SelectedRows(0)". This is fundementally wrong. There may be multiple rows selected and the first selected row may not be the newly selected row. Unless you want to parse over all of the selected rows each time, "DG1.Rows(DG1.CurrentCell.RowIndex)" should be used

c# .net datagridview SelectionChanged

4 Answers4