ArcGIS4LocalGovernment.AAState.promptLastValueProperrtySet C# (CSharp) Method

        public static void promptLastValueProperrtySet()
        {
            try
            {

                object nullObject = null;
                if (AAState.lastValueProperties == null)
                {
                    MessageBox.Show(A4LGSharedFunctions.Localizer.GetString("AttributeAssistantEditorMess_2a"));
                    return;
                }

                object lstNames;
                object lstValues;

                AAState.lastValueProperties.GetAllProperties(out lstNames, out lstValues);
                LastValueEntry lstVal;
                for (int i = 0; i < AAState.lastValueProperties.Count; i++)
                {
                    string strVal = ((object[])lstNames)[i].ToString();

                    lstVal = AAState.lastValueProperties.GetProperty(strVal) as LastValueEntry;
                    if (lstVal != null)
                    {
                        if (lstVal.Value == null || lstVal.Value == DBNull.Value)
                        {
                            nullObject = "<null>";
                        }
                        else
                        {
                            nullObject = lstVal.Value.ToString();
                        }
                        string strRet = Microsoft.VisualBasic.Interaction.InputBox(A4LGSharedFunctions.Localizer.GetString("AttributeAssistantEditorMess_2b") + strVal + "\r\n" + A4LGSharedFunctions.Localizer.GetString("AttributeAssistantEditorMess_2c") + nullObject.ToString() + "\r\n" + A4LGSharedFunctions.Localizer.GetString("AttributeAssistantEditorMess_2d"), A4LGSharedFunctions.Localizer.GetString("AttributeAssistantEditorMess_2b") + strVal, nullObject.ToString());

                        if (strRet != "")
                        {
                            if (strRet.ToString().ToUpper() == "<null>".ToUpper())
                            {
                                lstVal.Value = null;

                                AAState.lastValueProperties.SetProperty(strVal, lstVal);
                            }
                            else
                            {
                                lstVal.Value = strRet;

                                AAState.lastValueProperties.SetProperty(strVal, lstVal);
                            }
                        }
                    }

                }

            }
            catch (Exception ex)
            {
                MessageBox.Show(A4LGSharedFunctions.Localizer.GetString("AttributeAssistantEditorChain2") + ex.Message);
            }
        }