public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
if (context != null &&
context.Instance != null &&
provider != null)
{
edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
if (edSvc != null)
{
ListBoxControl dbs = new ListBoxControl();
dbs.Click += Dbs_Click;
try
{
QDocumentCR doc = (QDocumentCR)((QChangeRequest)context.Instance).GetRoot();
List <QPoolField> fields = doc.GetDescendants <QPoolField>();
List <String> tables = fields.Select(cr => cr.TableName).Distinct().ToList();
dbs.DataSource = tables;
edSvc.DropDownControl(dbs);
value = dbs.SelectedItem;
}
catch (Exception ex)
{
}
}
}
return(value);
}
private List <QPoolField> GetDataSource(ITypeDescriptorContext context)
{
QDocumentCR doc = (QDocumentCR)((QChangeRequest)context.Instance).GetRoot();
List <QPoolField> fields = doc.GetDescendants <QPoolField>();
return(fields);
}
private List <QPoolField> GetDataSource(ITypeDescriptorContext context)
{
// get document
QDocumentCR doc = null;
if (context.Instance is QCRModifier)
{
doc = (QDocumentCR)(((QCRModifier)context.Instance).ChangeRequest).GetRoot();
}
else if (context.Instance is QChangeRequest)
{
doc = (QDocumentCR)((QChangeRequest)context.Instance).GetRoot();
}
List <QPoolField> fields = doc.GetDescendants <QPoolField>();
return(fields);
}
private object InitDropDown_Criterio(ITypeDescriptorContext context, ListBoxControl dbs)
{
object retval = null;
try
{
QDocumentCR doc = (QDocumentCR)((QChangeRequest)context.Instance).GetRoot();
List <QPoolField> fields = doc.GetDescendants <QPoolField>();
dbs.DisplayMember = "FieldName";
dbs.DataSource = fields;
edSvc.DropDownControl(dbs);
retval = ((QPoolField)dbs.SelectedItem).FieldName;
}
catch (Exception ex)
{
}
return(retval);
}
private List <QPoolField> GetDataSource(ITypeDescriptorContext context)
{
QDocumentCR doc = (QDocumentCR)((QChangeRequest)context.Instance).GetRoot();
List <QPoolField> fields = doc.GetDescendants <QPoolField>();
object inst = context.Instance;
if (inst.GetType() == typeof(QAddCriterioCR))
{
// return only those belonging to table
string tableName = (string)context.Instance.GetType().GetProperty("WhereTable").GetValue(context.Instance, null);
return(fields.Where(p => p.TableName == tableName).ToList <QPoolField>());
}
else if (inst.GetType() == typeof(QAddColumnToTableCR) || inst.GetType() == typeof(QAddColumnToViewCR))
{
string tableName = (string)context.Instance.GetType().GetProperty("TableName").GetValue(context.Instance, null);
return(fields.Where(p => p.TableName == tableName).ToList <QPoolField>());
}
return(fields);
}