.net – How to highlight the current cell in a DataGridView when SelectionMode=FullRowSelect

datagridviewnetvb.netwinforms

I have an editable DataGridView with SelectionMode set to FullRowSelect (so the whole row is highlighted when the user clicks on any cell). However I would like the cell that currently has focus to be highlighted with a different back color (so the user can clearly see what cell they are about to edit). How can I do this (I do not want to change the SelectionMode)?

Best Answer

I figured out a better way of doing this, using the CellFormatting event:

Private Sub uxContacts_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles uxContacts.CellFormatting
    If uxContacts.CurrentCell IsNot Nothing Then
        If e.RowIndex = uxContacts.CurrentCell.RowIndex And e.ColumnIndex = uxContacts.CurrentCell.ColumnIndex Then
            e.CellStyle.SelectionBackColor = Color.SteelBlue
        Else
            e.CellStyle.SelectionBackColor = uxContacts.DefaultCellStyle.SelectionBackColor
        End If
    End If
End Sub

Related Solutions

.net – DataGridView: how to focus the whole row instead of a single cell

Put this code either into your form's constructor or set it in datagridview's Properties using the IDE.

dgv.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
dgv.MultiSelect = false;
dgv.RowPrePaint +=new DataGridViewRowPrePaintEventHandler(dgv_RowPrePaint);

Then paste the following event into the form code:

private void dgv_RowPrePaint(object sender, DataGridViewRowPrePaintEventArgs e)
{
    e.PaintParts &= ~DataGridViewPaintParts.Focus;
}

And it works! :-)

"dgv" is the DataGridView in question and "form" is the Form that contains it.

Note, that this soulution doesn't display the dotted rectangle around the whole row. Instead, it removes the focus dots entirely.

C# – How to update the GUI from another thread

The simplest way is an anonymous method passed into Label.Invoke:

// Running on the worker thread
string newText = "abc";
form.Label.Invoke((MethodInvoker)delegate {
    // Running on the UI thread
    form.Label.Text = newText;
});
// Back on the worker thread

Notice that Invoke blocks execution until it completes--this is synchronous code. The question doesn't ask about asynchronous code, but there is lots of content on Stack Overflow about writing asynchronous code when you want to learn about it.

Best Answer

Related Solutions

.net – DataGridView: how to focus the whole row instead of a single cell

C# – How to update the GUI from another thread

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