"Rows" is a property of the DataGridView that returns all the rows as a collection. For a particular Row, you can set the .Selected property to True (or False) to select (or unselect) that Row.

For example,

dgv = new DataGridView

.

.

.

dgv.Rows(index).Selected = True

I've worked it out.

I need to make the row the current row.

CurrentRow is readonly, but setting the current cell has the desired effect.

"Rows" is a property of the DataGridView that returns all the rows as a collection. For a particular Row, you can set the .Selected property to True (or False) to select (or unselect) that Row.

For example,

dgv = new DataGridView

.

.

.

dgv.Rows(index).Selected = True

I had a similar problem, which this almost solved.

The row gets selected, (the cells in the row are highlighted), but the little black arrow in the column to the left of the data stays at the previously selected row.

How do I get it to update that as well?

The DataGridView can contain multiple SELECTED rows (if you set property MultiSelect to True) but should only contain a single CurrentCell - this is the cell that is currently active (being edited for example). Set the CurrentCell property to a non-hidden non-disabled, non-header cell and that will move the black arrow to the row that contains that cell. This row can be checked with the CurrentRow (read-only) property of the dgv.

For example in VB:

DataGridView1.CurrentCell = DataGridView1.Rows(1).Cells(0)

Hope this helps.

PS Best to put separate issues on separate threads - you can always reference one thread from another using a hyperlink.

I've worked it out.

I need to make the row the current row.

CurrentRow is readonly, but setting the current cell has the desired effect.

When I try to set the CurrentCell property I get this error "Operation is not valid because it results in a reentrant call to the SetCurrentCellAddressCore function"

Any clue how to fix this?....

In what event or method do you set the CurrentCell property? Is it possible, albeit farfetched, that the method that sets the property is being executed as a result of the current cell being changed?

Just a stab.

Thanks for the post Hank. I just wanted to add one additional point -- when setting the CurrentCell property, it's important that the Cells[x] that is chosen is visible. If it is hidden, then an exception will be thrown.

Hi,

Just stumbled across this thread, as it's exactly the problem I'm now trying to solve. All good, except for one point. My datagridview is large enough that the record I'm trying to refocus on is off the screen. i.e. the cell is not visible.

How do I get round this?

Cheers.

Ahh, don't worry, I've figured it out. I need to force a scroll and redraw first, then set the current row/cell;

DataGridView1.FirstDisplayedScrollingRowIndex = DataGridView1.Rows(counter).Index

This has been a helpful thread.

Thanks to all contributors.

I have a slightly different question along these lines if someone can help me out.

I have a multi-select datagridview. I have added a contextmenu to my rows when adding them based on a column value. I only allow a row selection. When you right click on the row, the contextmenu pops up, but it does NOT select the row that was right clicked on.

I solved this problem by checking the mousedown event, checking to see if it was the right mouse button that was clicked and then selecting the row. The result is like a multi-select selection with the CTRL key pressed. If the SHIFT key is pressed it works the same way, which is not correct.

I started writing all kinds of code to make the right click to perform the multi-select in all cases like a left click before popping up my contextmenu. I'm having a hard time doing this and it seems the wrong approach.

I want the right click to behave like the left click (select row and perform correctlyfor multi-select)and then pop open the contextmenu.

Anyone know how to do this?

Thanks!

See if this thread helps you out make sure you read the second post and the one from "dd3" on 5-11-07

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=196286&SiteID=1

private void cmuGrid_Opening(object sender, CancelEventArgs e)

// get the mouse porsition and convert it to coordinate within the grid

Point pt = grdJobs.PointToClient(MousePosition);

// now get the testinfo at the gridcoordinate

DataGridView.HitTestInfo hti = grdJobs.HitTest(pt.X, pt.Y);

// is it a cell?

if (hti.Type == DataGridViewHitTestType.Cell)

{

// make the cell the current on and select the row

grdJobs.ClearSelection();

grdJobs.CurrentCell = grdJobs.Rows[hti.RowIndex].Cells[hti.ColumnIndex];

grdJobs.Rows[hti.RowIndex].Selected = true;

// do whatever you want to do, set contextmenu text for example

}

private void cmuGrid_Opening(object sender, CancelEventArgs e)

// get the mouse porsition and convert it to coordinate within the grid

Point pt = grdJobs.PointToClient(MousePosition);

// now get the testinfo at the gridcoordinate

DataGridView.HitTestInfo hti = grdJobs.HitTest(pt.X, pt.Y);

// is it a cell?

if (hti.Type == DataGridViewHitTestType.Cell)

{

// make the cell the current on and select the row

grdJobs.ClearSelection();

grdJobs.CurrentCell = grdJobs.Rows[hti.RowIndex].Cells[hti.ColumnIndex];

grdJobs.Rows[hti.RowIndex].Selected = true;

// do whatever you want to do, set contextmenu text for example

}

Just started using this code for the above multi-select row feature. Only immediate bug: If you move the mouse real fast, some rows get skipped. Butonly 'real' fast.

void Grid_MouseDown(object sender, MouseEventArgs e)

DataGridView.HitTestInfo hti = Grid.HitTest(e.X, e.Y);

if (e.Button == MouseButtons.Right && hti.Type == DataGridViewHitTestType.Cell)

{

if(Control.ModifierKeys != Keys.Control)

{

Grid.ClearSelection();

}

Grid.MouseMove += new MouseEventHandler(m_pinGrid_MouseMove);

Grid.Rows[hti.RowIndex].Cells[hti.ColumnIndex].Selected = true;

}

void Grid_MouseMove(object sender, MouseEventArgs e)

DataGridView.HitTestInfo hti = Grid.HitTest(e.X, e.Y);

if (e.Button == MouseButtons.Right && hti.Type == DataGridViewHitTestType.Cell)

{

m_pinGrid.Rows[hti.RowIndex].Cells[hti.ColumnIndex].Selected = true;

}

void Grid_MouseUp(object sender, MouseEventArgs e)

DataGridView.HitTestInfo hti = Grid.HitTest(e.X, e.Y);

if (e.Button == MouseButtons.Right)

{

Grid.MouseMove -= new MouseEventHandler(Grid_MouseMove);

}

You can change the sorting order

or

This is a very helpful thread. Really appreciate help of all contributors.

I was a bit surprised that no method exists to carry out this common task froma few parameters like column and lookup value.

My solution learned from this thread (thanks to all) may be useful for others so here it is.

/gustav

This information helped me get the programatically selected row displayed, but the scroll bar slider is not positioned correctly. I added a new row to the bottom of the grid programatically and the code sample code helped me get the new row displayed. However, the scroll bar slider is positioned at the top of the scroll bar instead of the bottom. As soon as the user takes some action that causes the grid to adjust (move to a different row, sort, etc.), the slider jumps to the proper position. Is there some way to programatically reset the slider?

protected void gvwNavButtons_DataBound(object sender, EventArgs e)

{

if (gvwNavButtons.Rows.Count == 1)

{

true;

gvwNavButtons.Visible = false;

}
}

My goal is to
1) when there is only a single record returned
2) select the row. The queries for other GridViews are dependant on which row is selected
3) make the GridView hidden
4) do other things

Can anyone shed some light on why i get this error message? it seems so straight forward and others seem to be using this syntax.

Thanks
Jon