internal void SchemaChanged(JoinSourceType type)
{
if (type == JoinSourceType.Target)
{
return;
}
_view.ClearJoins();
FdoConnection conn = GetConnection(type);
if (conn != null)
{
using (FdoFeatureService service = conn.CreateFeatureService())
{
switch (type)
{
case JoinSourceType.Left:
_view.LeftClasses = service.GetClassNames(_view.SelectedLeftSchema);
ClassChanged(type);
break;
case JoinSourceType.Right:
_view.RightClasses = service.GetClassNames(_view.SelectedRightSchema);
ClassChanged(type);
break;
}
}
}
}
private void UpdateSourceClasses()
{
using (FdoFeatureService svc = CreateSourceService())
{
string schema = cmbSrcSchema.SelectedItem.ToString();
var classes = svc.GetClassNames(schema);
cmbSrcClass.DataSource = classes;
if (classes.Count > 0)
{
cmbSrcClass.SelectedIndex = 0;
}
CheckEmptyName();
}
}
private void UpdateTargetClasses()
{
using (FdoFeatureService svc = CreateTargetService())
{
string schema = cmbDstSchema.SelectedItem.ToString();
string srcClass = this.SourceClass;
var classes = svc.GetClassNames(schema);
if (!string.IsNullOrEmpty(srcClass))
{
//Activate this option only if the source class name doesn't exist in the target's selected schema
chkCreate.Enabled = !classes.Contains(srcClass);
}
cmbDstClass.DataSource = classes;
if (classes.Count > 0)
{
cmbDstClass.SelectedIndex = 0;
}
CheckEmptyName();
}
}
void OnAfterNodeExpansion(object sender, TreeViewEventArgs e)
{
if (e.Action == TreeViewAction.Expand)
{
TreeNode node = e.Node;
TreeNode root = _explorer.GetRootNode(RootNodeName);
//Is a FDO data source node
if (IsChild(root.Nodes, node, NODE_LEVEL_CLASS))
{
//Find the connection node
TreeNode connNode = node;
while (connNode.Level > 1)
{
connNode = connNode.Parent;
}
string connName = connNode.Name;
using (new TempCursor(Cursors.WaitCursor))
{
switch (node.Level)
{
case NODE_LEVEL_CONNECTION: //Connection node
{
if (!(bool)node.Tag) //Not loaded, load it now
{
//Clear out dummy node
node.Nodes.Clear();
CreateSchemaNodes(node);
node.Tag = true; //Schema is loaded
}
}
break;
case NODE_LEVEL_SCHEMA: //Schema Node
{
bool isPartial = Convert.ToBoolean(node.Tag);
if (isPartial)
{
Debug.Assert(node.Nodes.Count == 1); //Has a dummy node
string schemaName = node.Name;
FdoConnection conn = _connMgr.GetConnection(connName);
using (FdoFeatureService svc = conn.CreateFeatureService())
{
Debug.Assert(svc.SupportsPartialSchemaDiscovery());
List <string> classNames = svc.GetClassNames(schemaName);
GetClassNodesPartial(classNames, node);
node.Tag = false; //This node is no longer partial
node.Expand();
}
}
}
break;
case NODE_LEVEL_CLASS: //Class Node
{
bool isPartial = Convert.ToBoolean(node.Tag);
if (isPartial)
{
Debug.Assert(node.Nodes.Count == 1); //Has a dummy node
string schemaName = node.Parent.Name;
FdoConnection conn = _connMgr.GetConnection(connName);
using (FdoFeatureService svc = conn.CreateFeatureService())
{
Debug.Assert(svc.SupportsPartialSchemaDiscovery());
ClassDefinition cd = svc.GetClassByName(schemaName, node.Name);
if (cd != null)
{
UpdateClassNode(node, cd);
}
}
}
}
break;
}
}
}
}
}
