private bool CanLoadProperties(MetadataViewModelBase obj)
{
if (obj is CategoryViewModel || obj == null)
{
return(false);
}
return(!obj.Root.IsLoadingInProcess && !obj.IsBusy && obj.Root.IsConnected);
}
private bool CanRefresh(MetadataViewModelBase o)
{
if (o == null)
{
return(false);
}
return(!o.Root.IsLoadingInProcess && !o.IsBusy && o.Root.IsConnected);
}
private void Refresh(MetadataViewModelBase o)
{
o.RefreshTreeItem();
if (o.Model.IsPropertyLoaded)
{
ShowProperties(o);
}
o.Model.Definition = string.Empty;
}
private async void LoadProperties(MetadataViewModelBase obj)
{
if (obj.Model.IsPropertyLoaded)
{
obj.Root.RefreshProperties(obj);
}
await obj.Root.LoadProperties(obj);
ItemProperties.Clear();
ItemProperties.AddRange(obj.Model.Properties);
}
private bool CanShowDefinition(MetadataViewModelBase obj)
{
if (obj == null)
{
return(false);
}
if (obj.Type == DbEntityEnum.Table &&
(!obj.Model.IsChildrenLoaded(DbEntityEnum.Column).GetValueOrDefault(false) && !obj.Root.IsConnected))
{
return(false);
}
return(!(obj is CategoryViewModel) && _printerFactory.IsSupported(obj.Model) && !obj.IsBusy && !obj.Root.IsLoadingInProcess);
}
private async void ShowDefinition(MetadataViewModelBase obj)
{
obj.IsBusy = true;
obj.Root.IsLoadingInProcess = true;
try
{
if (!string.IsNullOrWhiteSpace(obj.Model.Definition))
{
DefinitionText = obj.Model.Definition;
return;
}
if (obj.Type == DbEntityEnum.Table)
{
if (!obj.Model.IsChildrenLoaded(null).GetValueOrDefault(false))
{
await obj.Root.LoadModel(obj, DbEntityEnum.All);
}
foreach (var child in obj.Model.Children)
{
if (!child.IsPropertyLoaded)
{
obj.Root.DbLoader.Connection.InitialCatalog = obj.Model.DataBaseName;
await obj.Root.DbLoader.LoadProperties(child);
if (obj.Root.IsDefaultDatabase)
{
obj.Root.DbLoader.Connection.InitialCatalog = string.Empty;
}
}
}
}
//get printer
DefinitionText = obj.Model.Definition = _printerFactory.GetPrinter(obj.Model).GetDefintition(obj.Model);
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
finally
{
obj.IsBusy = false;
obj.Root.IsLoadingInProcess = false;
}
}
private IEnumerable <MetadataViewModelBase> FindMatchesNode(MetadataViewModelBase node, string text, DbEntityEnum mask)
{
if (node.Name.Contains(text) && !(node is CategoryViewModel) && mask.HasFlag(node.Type))
{
yield return(node);
}
if (node.Children.Count != 0 && !node.HasFakeChild)
{
foreach (var treeViewItemViewModelBase in node.Children)
{
var treeViewItem = (MetadataViewModelBase)treeViewItemViewModelBase;
foreach (MetadataViewModelBase res in FindMatchesNode(treeViewItem, text, mask))
{
yield return(res);
}
}
}
}