problem selecting cell after datagridviewcell Drop Down

Question

Hello..

I want to drag n drop Single cell.. such that i can copy the value form one cell to another.. i used following code .. everything works fine but problem is that after dropping cell the new cell where i am dropping value doesn't highlight. and highlight remain on the first cell where i start dragging...

Here is the code.. i try to set current cell .. but still didn't work.

private void dataGridView1_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
DataGridView.HitTestInfo info = dataGridView1.HitTest(e.X, e.Y);
if (info.RowIndex >= 0 && info.ColumnIndex >= 0)
{
string text = Convert.ToString(dataGridView1.Rows[info.RowIndex].Cells[info.ColumnIndex].Value);
if (text != null)
{
dataGridView1.DoDragDrop(text, DragDropEffects.Copy);
}
}
}
}
private void dataGridView1_DragEnter(object sender, DragEventArgs e)
{
e.Effect = DragDropEffects.Copy;
}
private void dataGridView1_DragDrop(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(typeof(System.String )))
{
DataGridView dgv = (DataGridView)sender;
Point p = dgv.PointToClient(new Point(e.X, e.Y));
DataGridView.HitTestInfo info= dgv.HitTest(p.X, p.Y);
if (info.RowIndex >= 0 && info.ColumnIndex >= 0)
{
dataGridView1[info.ColumnIndex,info.RowIndex].Value = e.Data.GetData(typeof(System.String));
dgv.CurrentCell = dataGridView1[info.ColumnIndex, info.RowIndex];
dgv.CurrentCell.Selected = true;
}
}
}

try abc · Answer

Solved.. Problem is DoDragDrop event is called in Mouse_Down. instead i called it from Mouse_Move and Problem get solved. As Calling DoDragDrop from Mouse Down will return to Mouse Down event after drag n drop Complete. and set focus to the cell where Mouse Down Pressed.. here is the code private Rectangle dragBoxSrc; string text = null ; private void dataGridView1_MouseDown( object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { DataGridView.HitTestInfo info = dataGridView1.HitTest(e.X, e.Y); if (info.RowIndex >= 0 && info.ColumnIndex >= 0) { text = Convert.ToString(dataGridView1.Rows[info.RowIndex].Cells[info.ColumnIndex].Value); if (text != null ) { dragBoxSrc = new Rectangle( new Point(e.X, e.Y), SystemInformation.DragSize); } else { dragBoxSrc = Rectangle.Empty; } } } } private void dataGridView1_MouseMove( object sender, MouseEventArgs e) { if ((e.Button & MouseButtons.Left) == MouseButtons.Left) { if (dragBoxSrc != Rectangle.Empty && !dragBoxSrc.Contains(e.X, e.Y)) { DragDropEffects dropEffect = dataGridView1.DoDragDrop(text, DragDropEffects.Copy); } } } private void dataGridView1_DragEnter( object sender, DragEventArgs e) { e.Effect = DragDropEffects.Copy; } private void dataGridView1_DragDrop( object sender, DragEventArgs e) { if (e.Data.GetDataPresent( typeof (System.String ))) { DataGridView dgv = (DataGridView)sender; Point p = dgv.PointToClient( new Point(e.X, e.Y)); DataGridView.HitTestInfo info= dgv.HitTest(p.X, p.Y); if (info.RowIndex >= 0 && info.ColumnIndex >= 0) { dataGridView1[info.ColumnIndex,info.RowIndex].Value = e.Data.GetData( typeof (System.String)); dgv.CurrentCell = dataGridView1[info.ColumnIndex, info.RowIndex]; } } }

Hirendra Sisodiya · Answer

good..........