FdoToolbox.Tasks.Controls.FdoJoinCtl.PromptLeftFilter C# (CSharp) Method

        private void PromptLeftFilter()
        {
            var connMgr = ServiceManager.Instance.GetService<FdoConnectionManager>();
            var conn = connMgr.GetConnection(this.SelectedLeftConnection);

            using (var svc = conn.CreateFeatureService())
            {
                using (ClassDefinition cd = svc.GetClassByName(this.SelectedLeftSchema, this.SelectedLeftClass))
                {
                    var expr = ExpressionEditor.EditExpression(conn, cd, null, txtLeftFilter.Text, ExpressionMode.Filter);
                    if (expr != null)
                        txtLeftFilter.Text = expr;
                }
            }
        }