(New) DataGridView Question

[joey.powell]

If I click down on a control on a form and then drag and release on a
datagridview, how can I tell which cell the release occured over?

[Larry Lard]

jo*********@topscene.com wrote:

If I click down on a control on a form and then drag and release on a
datagridview, how can I tell which cell the release occured over?

When the drag is dropped, the DGV will receive a DragDrop event
containing the screen coordinates of the drop point. Convert these to
client coordinates with PointToClient, then use the HitTest method to
workout where the drop was. Sample code:

Private Sub DataGridView1_DragDrop(ByVal sender As Object, ByVal e
As System.Windows.Forms.DragEventArgs) Handles DataGridView1.DragDrop
Dim dropPointScreen As Point = New Point(e.X, e.Y)
Dim dropPointClient As Point =
DataGridView1.PointToClient(dropPointScreen)
Dim hitTest As DataGridView.HitTestInfo = _
DataGridView1.HitTest(dropPointClient.X, dropPointClient.Y)

MsgBox("Dropped on row " & hitTest.RowIndex.ToString & _
", column " & hitTest.ColumnIndex.ToString)
End Sub

--
Larry Lard
Replies to group please
When starting a new topic, please mention which version of VB/C# you
are using

[Larry Lard]

Larry Lard wrote:

jo*********@topscene.com wrote:

If I click down on a control on a form and then drag and release on a
datagridview, how can I tell which cell the release occured over?

When the drag is dropped, the DGV will receive a DragDrop event
containing the screen coordinates of the drop point. Convert these to
client coordinates with PointToClient, then use the HitTest method to
workout where the drop was. Sample code:

Private Sub DataGridView1_DragDrop(ByVal sender As Object, ByVal e
As System.Windows.Forms.DragEventArgs) Handles DataGridView1.DragDrop

One day I will learn to check which group I am posting to.

public Form1()
{
InitializeComponent();

dataGridView1.AllowDrop = true;
dataGridView1.DragEnter += new
DragEventHandler(dataGridView1_DragEnter);
dataGridView1.DragDrop += new
DragEventHandler(dataGridView1_DragDrop);
}

void dataGridView1_DragDrop(object sender, DragEventArgs e)
{
Point dropPointScreen = new Point(e.X, e.Y);
Point dropPointClient =
dataGridView1.PointToClient(dropPointScreen);
DataGridView.HitTestInfo hitTest =
dataGridView1.HitTest(dropPointClient.X,
dropPointClient.Y);

MessageBox.Show("Dropped on row " +
hitTest.RowIndex.ToString() +
", column " +
hitTest.ColumnIndex.ToString());

}

void dataGridView1_DragEnter(object sender, DragEventArgs e)
{
e.Effect = DragDropEffects.All;
}
--
Larry Lard
Replies to group please
When starting a new topic, please mention which version of VB/C# you
are using