/// <summary>
/// This method will draw the items of the DropDownList. It will draw the Icon and the text and
/// with the indent that goes with the item
/// </summary>
void ComboBox_DrawItem(object sender, DrawItemEventArgs e)
{
if (e.Index == -1)
{
return;
}
else
{
ExplorerComboItem item = (ExplorerComboItem)Items[e.Index];
e.DrawBackground();
e.DrawFocusRectangle();
int indentOffset = indentWidth * item.Indent;
int imageYOffset = (e.Bounds.Height - item.Image.Height) / 2;
Point imagePoint = new Point(
e.Bounds.Left + indentOffset + 2,
e.Bounds.Top + imageYOffset);
Size textSize = e.Graphics.MeasureString(item.Text, Font).ToSize();
int textYOffset = (e.Bounds.Height - textSize.Height) / 2;
Point textPoint = new Point(
e.Bounds.Left + item.Image.Width + indentOffset + 2,
e.Bounds.Top + textYOffset);
e.Graphics.DrawIcon(item.Image, imagePoint.X, imagePoint.Y);
e.Graphics.DrawString(item.Text, e.Font, new SolidBrush(e.ForeColor), textPoint);
}
}
/// <summary>
/// This method will change the currentItem field once a new item is selected
/// </summary>
protected override void OnSelectedIndexChanged(EventArgs e)
{
base.OnSelectedIndexChanged(e);
if (ComboBox.SelectedIndex > -1)
{
currentItem = ComboBox.SelectedItem as ExplorerComboItem;
}
}