Windows Forms

Thomas Stockwell wrote:

good luck even more in .NET

if(this.dataGrid1.CurrentRowIndex!=-1)
{
((DataTable)this.dataGrid1.DataSource).DefaultView.Delete(this.dataGrid1.CurrentRowIndex);
((DataTable)this.dataGrid1.DataSource).AcceptChanges();
}

private void DataGridView_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
{
 // Make sure we're getting the key press event for a text type editor...
 if (e.Control.GetType() == typeof(DataGridViewTextBoxEditingControl))
  // Handle the editing control's keypress event...
  (e.Control).KeyPress += DataGridViewTextBoxEditingControlTextBoxControl_KeyPress;
}

private void DataGridViewTextBoxEditingControlTextBoxControl_KeyPress(object sender, KeyPressEventArgs e)
{
 // Standard editing keys can be processed...
 if (e.KeyChar == (char)Keys.Back)
 {
  e.Handled = false;
  // No need for further validation...
  return;
 }

 // Just evaluate the contents of the cell if the value type is int
 // NOTE: _dataGridView here is a reference to the grid in context...
 if (_dataGridView.CurrentCell.ValueType != typeof (int))
  return;

 // Validate the key char...
 // NOTE: By specifying e.Handled = true, we are indicating that
 // we absorbed the character and this key is not sent to the cell.
 e.Handled = char.IsNumber(e.KeyChar);
}