How to make the label visible using c# code in MVC3?

Question

Following is the Label in my view page,

 <label id="back"  onclick="BacktoSubmit()"  style="cursor:pointer; text-decoration:underline; color:Blue; padding-left:670px; visibility:hidden;">Back to list</label>

Following is my Controller Method,

   public ActionResult TRSkillGradeAvailability(FormCollection frmCollection, string Submit, string Search, string TabType)
    {
        try
        {
            string strLoggedUser = GetLogUser();
            TRSkillGradeAvailabilityModel objTRSkillGradeAvailabilityModel = new TRSkillGradeAvailabilityModel();
            TRSkillGradeAvailabilityModel objTRSkillGradModel = new TRSkillGradeAvailabilityModel();
            TravelReadyCommonModel objTravelReadyCommonModel = new TravelReadyCommonModel();
            string strVertical = string.Empty, strGeo = string.Empty, strGrade = string.Empty, strSkill = string.Empty;
            strVertical = Convert.ToString(frmCollection["ddlVertical"]);
            strGeo = Convert.ToString(frmCollection["ddlGeo"]);
            strGrade = Convert.ToString(frmCollection["ddlGrade"]);
            strSkill = Convert.ToString(frmCollection["ddlSkill"]);
            AssignViewBag(strVertical, strGeo, strGrade, strSkill);


            var button = Submit ?? Search;
            if (button != "Submit")
            {

                if (button == null)
                {
                    button = "Search";
                }
            }
            if (TabType == "1")
            {
                TempData["Tab"] = "1";
                if (button == "Search")
                {                       
                    Label lbl = new Label();
                    lbl.FindControl("back").Visible = true;
                    string strSearchId = string.Empty;
                    strSearchId = Convert.ToString(frmCollection["txtSearch"]).Trim();
                    objTRSkillGradeAvailabilityModel = objTRSkillGradeAvailabilityModel.GetTRPoolData(strVertical, strGeo, strSkill, strGrade, 3, strSearchId, strLoggedUser);
                }
                else if (button == "Submit")
                {
                    if (strVertical == TravelReadyContants.StaticVariable.AllVertical)
                        objTRSkillGradeAvailabilityModel = objTRSkillGradeAvailabilityModel.GetTRPoolData(strVertical, strGeo, strSkill, strGrade, 1, string.Empty, strLoggedUser);
                    else
                        objTRSkillGradeAvailabilityModel = objTRSkillGradeAvailabilityModel.GetTRPoolData(strVertical, strGeo, strSkill, strGrade, 2, string.Empty, strLoggedUser);
                }
            }
            else if (TabType == "2")
            {
                TempData["Tab"] = "2";
                objTRSkillGradeAvailabilityModel = objTRSkillGradeAvailabilityModel.GetMyPoolData(strLoggedUser);
                if (button == "Search")
                {
                    string strSearchId = string.Empty;
                    strSearchId = Convert.ToString(frmCollection["txtSearch"]).Trim();
                    objTRSkillGradeAvailabilityModel.lstTRSkillGradeAvailabilty = objTRSkillGradeAvailabilityModel.lstTRSkillGradeAvailabilty.FindAll(List => List.AssocId == strSearchId);
                }
                else if (button == "Submit")
                {
                    if (strVertical != TravelReadyContants.StaticVariable.AllVertical)
                        objTRSkillGradeAvailabilityModel.lstTRSkillGradeAvailabilty = objTRSkillGradeAvailabilityModel.lstTRSkillGradeAvailabilty.FindAll(List => List.Geo == strGeo && List.Vertical == strVertical && List.SkillName == strSkill && List.GradeName == strGrade);
                    else
                        objTRSkillGradeAvailabilityModel.lstTRSkillGradeAvailabilty = objTRSkillGradeAvailabilityModel.lstTRSkillGradeAvailabilty.FindAll(List => List.Geo == strGeo && List.SkillName == strSkill && List.GradeName == strGrade);
                }
            }

            GetdropdownValues(ref objTravelReadyCommonModel, ref objTRSkillGradModel, 1, string.Empty);
            objTRSkillGradeAvailabilityModel.LoggedInUser = strLoggedUser;
            objTRSkillGradeAvailabilityModel.lstGeo = objTravelReadyCommonModel.lstGeo;
            objTRSkillGradeAvailabilityModel.lstGrade = objTRSkillGradModel.lstGrade;
            objTRSkillGradeAvailabilityModel.lstSkill = objTRSkillGradModel.lstSkill;
            objTRSkillGradeAvailabilityModel.DefaultGeo = objTRSkillGradModel.DefaultGeo;
            objTRSkillGradeAvailabilityModel.DefaultGrade = objTRSkillGradModel.DefaultGrade;
            objTRSkillGradeAvailabilityModel.DefaultSkill = objTRSkillGradModel.DefaultSkill;

            GetdropdownValues(ref objTravelReadyCommonModel, ref objTRSkillGradModel, 2, strGeo);
            objTRSkillGradeAvailabilityModel.lstVerticals = objTravelReadyCommonModel.lstVerticals;
            objTRSkillGradeAvailabilityModel.DefaultVertical = objTRSkillGradModel.DefaultVertical;

            return View(objTRSkillGradeAvailabilityModel);
        }
        catch (Exception ex)
        {
            ILogManager LogManager = new LogManager();
            var frame = new StackFrame(0);
            LogManager.CallLogging(frame, ex.Message, ex.StackTrace);
            return RedirectToAction("Error", "Common");
        }
    }

in this method i've used,

     Label lbl = new Label();
     lbl.FindControl("back").Visible = true;

this code to make the label visible while click the search button but it shows 'NullReferenceException' How to fix this issue anyother way to make the label visible when click search button?

What is the class - Label? Why you cant edit view directly? – maxs87 Nov 26 '13 at 14:37 — maxs87, Nov 26 '13 at 14:37

score 0 · Answer 1 · answered Nov 27 '13 at 05:45

You can add one more property to your model of type string like visible

public string Visibility { get; set; }

Set this model property

if (button == "Search")
{
         objTRSkillGradeAvailabilityModel.Visibility = "visible";         
}

else
      objTRSkillGradeAvailabilityModel.Visibility = "hidden";

and in view

<label id="back" name="back" style="visibility:@Model.Visibility"/>

score 0 · Answer 2 · answered Sep 28 '20 at 04:39

0

@Html.Label("", "Invalid Account ID or Payment not paid.", htmlAttributes: new { @class = "control-label col", style = "color:#ff0000", hidden="false" })

answered Sep 28 '20 at 04:39

Khan

1
2

How to make the label visible using c# code in MVC3?

2 Answers2