private void method_17(object sender, int index, DxfViewport item)
{
DxfModel model = this.Model;
if (model == null)
{
return;
}
item.vmethod_3(this.Model);
item.vmethod_2((IDxfHandledObject)this.OwnerBlock);
if (item.ViewportEntityHeader == null || model.ViewportEntityHeaders.Contains(item.ViewportEntityHeader))
{
return;
}
model.ViewportEntityHeaders.Add(item.ViewportEntityHeader);
}
private void method_18(object sender, int index, DxfViewport oldItem, DxfViewport newItem)
{
DxfModel model = this.Model;
if (model == null)
{
return;
}
newItem.vmethod_3(this.Model);
newItem.vmethod_2((IDxfHandledObject)this.OwnerBlock);
if (newItem.ViewportEntityHeader != null && !model.ViewportEntityHeaders.Contains(newItem.ViewportEntityHeader))
{
model.ViewportEntityHeaders.Add(newItem.ViewportEntityHeader);
}
oldItem.vmethod_4(this.Model);
oldItem.vmethod_2((IDxfHandledObject)null);
if (oldItem.ViewportEntityHeader == null || !model.ViewportEntityHeaders.Contains(oldItem.ViewportEntityHeader))
{
return;
}
model.ViewportEntityHeaders.Remove(oldItem.ViewportEntityHeader);
}