private TreeViewItem FindTreeViewItemUnderTreeViewItemByModelName(TreeViewItem tvi, string modelName)
{
TreeViewItem treeViewItemRet = null;
if (tvi != null)
{
ICrowdMemberModel model = tvi.DataContext as ICrowdMemberModel;
if (model.Name == modelName)
{
return(tvi);
}
else if (tvi.Items != null)
{
for (int i = 0; i < tvi.Items.Count; i++)
{
TreeViewItem item = tvi.ItemContainerGenerator.ContainerFromItem(tvi.Items[i]) as TreeViewItem;
var treeViewItem = FindTreeViewItemUnderTreeViewItemByModelName(item, modelName);
if (treeViewItem != null)
{
treeViewItemRet = treeViewItem;
break;
}
}
}
}
return(treeViewItemRet);
}
public static object GetCurrentSelectedCrowdInCrowdCollection(Object tv, out ICrowdMemberModel crowdMember)
{
CrowdModel containingCrowdModel = null;
crowdMember = null;
TreeView treeView = tv as TreeView;
if (treeView != null && treeView.SelectedItem != null)
{
if (treeView.SelectedItem is CrowdModel)
{
containingCrowdModel = treeView.SelectedItem as CrowdModel;
}
else
{
DependencyObject dObject = treeView.GetItemFromSelectedObject(treeView.SelectedItem);
TreeViewItem tvi = dObject as TreeViewItem; // got the selected treeviewitem
crowdMember = tvi.DataContext as ICrowdMemberModel;
dObject = VisualTreeHelper.GetParent(tvi); // got the immediate parent
tvi = dObject as TreeViewItem; // now get first treeview item parent
while (tvi == null)
{
dObject = VisualTreeHelper.GetParent(dObject);
tvi = dObject as TreeViewItem;
}
containingCrowdModel = tvi.DataContext as CrowdModel;
}
}
return(containingCrowdModel);
}
public void Remove(ICrowdMemberModel member)
{
if (member == null)
{
return;
}
this.crowdMemberCollection.Remove(member);
member.PropertyChanged -= Member_PropertyChanged;
}
private void viewModel_ExpansionUpdateNeeded(object sender, CustomEventArgs <ExpansionUpdateEvent> e)
{
CrowdModel crowdModel = sender as CrowdModel;
DependencyObject dObject = null;
ExpansionUpdateEvent updateEvent = e.Value;
if (updateEvent == ExpansionUpdateEvent.Filter)
{
ExpandMatchedNode(sender);
}
else if (updateEvent == ExpansionUpdateEvent.DragDrop)
{
if (this.currentDropItemNode != null)
{
this.currentDropItemNode.IsExpanded = true;
}
}
else
{
if (this.selectedCrowdRoot != null && crowdModel != null)
{
TreeViewItem item = treeViewCrowd.ItemContainerGenerator.ContainerFromItem(this.selectedCrowdRoot) as TreeViewItem;
dObject = FindTreeViewItemUnderTreeViewItemByModelName(item, crowdModel.Name);
if (dObject == null)
{
dObject = treeViewCrowd.GetItemFromSelectedObject(crowdModel);
}
}
else
{
dObject = treeViewCrowd.GetItemFromSelectedObject(crowdModel);
}
TreeViewItem tvi = dObject as TreeViewItem;
if (tvi != null)
{
ICrowdMemberModel model = tvi.DataContext as ICrowdMemberModel;
if (tvi.Items != null && tvi.Items.Count > 0)
{
if (updateEvent != ExpansionUpdateEvent.Delete)
{
tvi.IsExpanded = true;
}
else
{
UpdateExpansions(tvi);
}
}
else
{
tvi.IsExpanded = false;
}
}
}
}
private void viewModel_EditNeeded(object sender, CustomEventArgs <string> e)
{
ICrowdMemberModel modelToSelect = sender as ICrowdMemberModel;
if (sender == null) // need to unselect
{
DependencyObject dObject = treeViewCrowd.GetItemFromSelectedObject(treeViewCrowd.SelectedItem);
TreeViewItem tvi = dObject as TreeViewItem; // got the selected treeviewitem
if (tvi != null)
{
tvi.IsSelected = false;
this.selectedCrowdRoot = null;
}
}
else
{
bool itemFound = false;
TextBox txtBox = null;
treeViewCrowd.UpdateLayout();
if (this.viewModel.SelectedCrowdModel == null)
{
var allCharsCrowd = this.viewModel.CrowdCollection[Constants.ALL_CHARACTER_CROWD_NAME];
if (allCharsCrowd != null)
{
TreeViewItem firstItem = treeViewCrowd.ItemContainerGenerator.ContainerFromItem(allCharsCrowd) as TreeViewItem;
if (firstItem != null)
{
firstItem.IsSelected = true;
this.viewModel.SelectedCrowdModel = firstItem.DataContext as CrowdModel;
}
}
}
if (sender is CrowdModel)
{
if (this.viewModel.SelectedCrowdModel == null || this.viewModel.SelectedCrowdModel.Name == Constants.ALL_CHARACTER_CROWD_NAME) // A new crowd has been added to the collection
{
for (int i = 0; i < treeViewCrowd.Items.Count; i++)
{
TreeViewItem item = treeViewCrowd.ItemContainerGenerator.ContainerFromItem(treeViewCrowd.Items[i]) as TreeViewItem;
if (item != null)
{
var model = item.DataContext as ICrowdMemberModel;
if (model.Name == modelToSelect.Name)
{
item.IsSelected = true;
itemFound = true;
txtBox = FindTextBoxInTemplate(item);
this.viewModel.SelectedCrowdModel = model as CrowdModel;
break;
}
}
}
}
}
if (!itemFound)
{
DependencyObject dObject = null;
if (e != null) // Something sent as event args
{
if (e.Value == "EditAfterDragDrop" && this.currentDropItemNodeParent != null)
{
dObject = currentDropItemNodeParent;
}
}
else
{
if (this.selectedCrowdRoot != null && this.viewModel.SelectedCrowdModel != null)
{
TreeViewItem item = treeViewCrowd.ItemContainerGenerator.ContainerFromItem(this.selectedCrowdRoot) as TreeViewItem;
dObject = FindTreeViewItemUnderTreeViewItemByModelName(item, this.viewModel.SelectedCrowdModel.Name);
}
else
{
dObject = treeViewCrowd.GetItemFromSelectedObject(this.viewModel.SelectedCrowdModel);
}
}
TreeViewItem tvi = dObject as TreeViewItem; // got the selected treeviewitem
if (tvi != null)
{
ICrowdMemberModel model = tvi.DataContext as ICrowdMemberModel;
if (tvi.Items != null)
{
tvi.IsExpanded = true;
tvi.UpdateLayout();
for (int i = 0; i < tvi.Items.Count; i++)
{
TreeViewItem item = tvi.ItemContainerGenerator.ContainerFromItem(tvi.Items[i]) as TreeViewItem;
if (item != null)
{
model = item.DataContext as ICrowdMemberModel;
if (model.Name == modelToSelect.Name)
{
item.IsSelected = true;
itemFound = true;
item.UpdateLayout();
txtBox = FindTextBoxInTemplate(item);
if (model is CrowdModel)
{
this.viewModel.SelectedCrowdModel = model as CrowdModel;
this.viewModel.SelectedCrowdParent = tvi.DataContext as CrowdModel;
}
else
{
this.viewModel.SelectedCrowdMemberModel = model as CrowdMemberModel;
this.viewModel.SelectedCrowdModel = tvi.DataContext as CrowdModel;
}
if (this.selectedCrowdRoot == null)
{
this.selectedCrowdRoot = tvi.DataContext as CrowdModel;
}
break;
}
}
}
}
}
}
if (txtBox != null)
{
this.viewModel.EnterEditModeCommand.Execute(txtBox);
}
}
}
private void UnLoadCharacter(object state)
{
ICrowdMemberModel model = state as ICrowdMemberModel;
//if (model != null && this.EditedCharacter.Name == model.Name)
// this.EditedCharacter = null;
}
public void Add(ICrowdMemberModel member)
{
this.crowdMemberCollection.Add(member);
this.crowdMemberCollection.Sort(ListSortDirection.Ascending, new CrowdMemberModelComparer());
member.PropertyChanged += Member_PropertyChanged;
}