private void Form1_Load(object sender, EventArgs e)
{
DataList list = new DataList();
list.Add(new DataEdit(1, "Rocky"));
list.Add(new DataEdit(2, "Fred"));
list.Add(new DataEdit(3, "Mary"));
list.Add(new DataEdit(4, "George"));
list.BeginEdit();
this.dataListBindingSource.DataSource = list;
this.dataListBindingSource.ListChanged += new ListChangedEventHandler(dataListBindingSource_ListChanged);
}
private void toolStripButton2_Click(object sender, EventArgs e)
{
// this is the wrong way to perform a cancel / undo operation
// and an "Edit level mismatch in CopyState" exception will be thrown
DataList list = (DataList)this.dataListBindingSource.DataSource;
this.dataListBindingSource.CancelEdit();
list.CancelEdit();
list.BeginEdit();
}
private void Form1_Load(object sender, EventArgs e)
{
DataList list = new DataList();
list.Add(new DataEdit(1, "Rocky"));
list.Add(new DataEdit(2, "Fred"));
list.Add(new DataEdit(3, "Mary"));
list.Add(new DataEdit(4, "George"));
list.BeginEdit();
this.dataListBindingSource.DataSource = list;
this.dataListBindingSource.ListChanged += new ListChangedEventHandler(dataListBindingSource_ListChanged);
}
private void cancelButton_Click(object sender, EventArgs e)
{
// get business object reference
DataList list = (DataList)this.dataListBindingSource.DataSource;
// cancel current row
this.dataListBindingSource.CancelEdit();
// unbind the UI
UnbindBindingSource(this.dataListBindingSource);
// cancel the list and restart editing
list.CancelEdit();
list.BeginEdit();
// rebind the UI
this.dataListBindingSource.DataSource = list;
}
