async public Task <object> GetInstanceAsync()
{
if (_fc != null)
{
return(_fc);
}
if (_etconn != null)
{
try
{
Dataset ds = new Dataset();
await ds.SetConnectionString(_etconn.ToXmlString());
await ds.Open();
_fc = (await ds.Elements())[0].Class as IFeatureClass;
return(_fc);
}
catch
{
_fc = null;
}
}
return(null);
}
void ConnectionProperties_Click(object sender, EventArgs e)
{
if (_etconn == null)
{
return;
}
FormEventTableConnection dlg = new FormEventTableConnection();
dlg.DbConnectionString = _etconn.DbConnectionString;
dlg.TableName = _etconn.TableName;
dlg.IdField = _etconn.IdFieldName;
dlg.XField = _etconn.XFieldName;
dlg.YField = _etconn.YFieldName;
dlg.SpatialReference = _etconn.SpatialReference;
if (dlg.ShowDialog() == DialogResult.OK)
{
EventTableConnection etcon = new EventTableConnection(
dlg.DbConnectionString,
dlg.TableName,
dlg.IdField, dlg.XField, dlg.YField,
dlg.SpatialReference);
ConfigConnections connStream = new ConfigConnections("eventtable", "546B0513-D71D-4490-9E27-94CD5D72C64A");
connStream.Add(dlg.TableName, etcon.ToXmlString());
_etconn = etcon;
}
}
public string ShowConnectionStringDialog(string initConnectionString)
{
EventTableConnection conn = new EventTableConnection();
try
{
conn.FromXmlString(initConnectionString);
}
catch { }
this.DbConnectionString = conn.DbConnectionString;
this.TableName = conn.TableName;
this.IdField = conn.IdFieldName;
this.XField = conn.XFieldName;
this.YField = conn.YFieldName;
this.SpatialReference = conn.SpatialReference;
if (this.ShowDialog() == DialogResult.OK)
{
conn = new EventTableConnection(
this.DbConnectionString,
this.TableName,
this.IdField,
this.XField,
this.YField,
this.SpatialReference);
return(conn.ToXmlString());
}
return(String.Empty);
}
public void ExplorerObjectDoubleClick(ExplorerObjectEventArgs e)
{
FormEventTableConnection dlg = new FormEventTableConnection();
if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
ConfigConnections connStream = new ConfigConnections("eventtable", "546B0513-D71D-4490-9E27-94CD5D72C64A");
EventTableConnection etconn = new EventTableConnection(
dlg.DbConnectionString,
dlg.TableName,
dlg.IdField, dlg.XField, dlg.YField,
dlg.SpatialReference);
string id = connStream.GetName(dlg.TableName);
connStream.Add(id, etconn.ToXmlString());
e.NewExplorerObject = new EventTableObject(this.ParentExplorerObject, id, etconn);
}
}
