CODEWITHSUNDEEP
asp.net-mvc-4razor
Henry
Henry

Reputation: 883

How to Set value for Hidden field in Razr MVC

In my application I need to pass some values from one page(page A to Page B) to another page. For this I am using Session variables(I cannot use Tempdata as it doesn't work on loadbalancing). In Page A I am setting the Session Variable. In Page B I need to retrieve the above Session variable. For this I am using a Hidden field in Page B. I dont know how to set the Session Variable to Hidden Field in Page B.

Page A

[HttpPost]
public JsonResult GetFileName(string updatedfileName, string orgfileName)
{
    Session["OrgFileName"] = orgfileName;
    Session["UpdatedFileName"] = updatedfileName;
    var result = myService.getFile(updatedfileName, orgfileName);
    return Json(result, JsonRequestBehavior.AllowGet);
}

Page B

<div style="display:none" >         
    <input type="hidden" value="" id="hdnfilename" />
</div>

Upvotes: 1

Views: 26359

Answers (1)

Gustavo Gondim
Gustavo Gondim

Reputation: 1643

In the controller of "Page B", set a ViewBag.MyValueto your session variable and apply it to the hidden's value.

Controller

ViewBag.MyValue = Session["MYVALUE"];

View

<input type="hidden" value="@ViewBag.MyValue" id="hdnfilename" />

If you need to get a session variable from JavaScript, you will need to develop an action that will return the session variable and consume it with JavaScript/jQuery, like this:

// Controller code
[HttpGet]
public JsonResult GetSessionVarValue(string key)
{
    return Json(new { key = key, value = Session[key] }, JsonRequestBehavior.AllowGet);
}

// JavaScript code
var mySessionValue;
$.getJSON("/GetSessionVarValue", "MYKEY", function(data) {
    mySessionValue = data.value;
});

You may take care with Session variables in load balance, too. The best way to secure store session variables is changing the state of session mode configuration to StateServer. http://msdn.microsoft.com/en-us/library/ms178586.aspx

Upvotes: 5

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