exception occur when i compare current value of session to null
Basically its a get method .when the function hit first time it simply return the view of login page after that when i set session value,after that in post back request it give me an exception object instance
var sessionvar =
System.Web.HttpContext.Current.Session["EmployeeName"].ToString();
if (!String.IsNullOrWhiteSpace(sessionvar))
return RedirectToAction("ViewWareHouseList", "Inventary");
return View();
}
asp.net-mvc
asked Nov 14 '18 at 9:47
usmanusman
62
add a comment |
Basically its a get method .when the function hit first time it simply return the view of login page after that when i set session value,after that in post back request it give me an exception object instance
var sessionvar =
System.Web.HttpContext.Current.Session["EmployeeName"].ToString();
if (!String.IsNullOrWhiteSpace(sessionvar))
return RedirectToAction("ViewWareHouseList", "Inventary");
return View();
}
asp.net-mvc
asked Nov 14 '18 at 9:47
usmanusman
62
You should useasoperator ifSession["EmployeeName"]contains null value:if (!String.IsNullOrWhiteSpace(System.Web.HttpContext.Current.Session["EmployeeName"] as string)).
– Tetsuya Yamamoto
Nov 14 '18 at 9:49
2
Possible duplicate of Testing a session variable for null or empty space
– Tetsuya Yamamoto
Nov 14 '18 at 9:50
add a comment |
Basically its a get method .when the function hit first time it simply return the view of login page after that when i set session value,after that in post back request it give me an exception object instance
var sessionvar =
System.Web.HttpContext.Current.Session["EmployeeName"].ToString();
if (!String.IsNullOrWhiteSpace(sessionvar))
return RedirectToAction("ViewWareHouseList", "Inventary");
return View();
}
asp.net-mvc
asked Nov 14 '18 at 9:47
usmanusman
62
Basically its a get method .when the function hit first time it simply return the view of login page after that when i set session value,after that in post back request it give me an exception object instance
var sessionvar =
System.Web.HttpContext.Current.Session["EmployeeName"].ToString();
if (!String.IsNullOrWhiteSpace(sessionvar))
return RedirectToAction("ViewWareHouseList", "Inventary");
return View();
}
asp.net-mvc
asp.net-mvc
asked Nov 14 '18 at 9:47
usmanusman
62
asked Nov 14 '18 at 9:47
usmanusman
62
asked Nov 14 '18 at 9:47
usmanusman
62
asked Nov 14 '18 at 9:47
usmanusman
62
asked Nov 14 '18 at 9:47
usmanusman
62
62
You should useasoperator ifSession["EmployeeName"]contains null value:if (!String.IsNullOrWhiteSpace(System.Web.HttpContext.Current.Session["EmployeeName"] as string)).
– Tetsuya Yamamoto
Nov 14 '18 at 9:49
2
Possible duplicate of Testing a session variable for null or empty space
– Tetsuya Yamamoto
Nov 14 '18 at 9:50
add a comment |
You should useasoperator ifSession["EmployeeName"]contains null value:if (!String.IsNullOrWhiteSpace(System.Web.HttpContext.Current.Session["EmployeeName"] as string)).
– Tetsuya Yamamoto
Nov 14 '18 at 9:49
2
Possible duplicate of Testing a session variable for null or empty space
– Tetsuya Yamamoto
Nov 14 '18 at 9:50
You should use
as operator if Session["EmployeeName"] contains null value: if (!String.IsNullOrWhiteSpace(System.Web.HttpContext.Current.Session["EmployeeName"] as string)).– Tetsuya Yamamoto
Nov 14 '18 at 9:49
You should use
as operator if Session["EmployeeName"] contains null value: if (!String.IsNullOrWhiteSpace(System.Web.HttpContext.Current.Session["EmployeeName"] as string)).– Tetsuya Yamamoto
Nov 14 '18 at 9:49
2
2
Possible duplicate of Testing a session variable for null or empty space
– Tetsuya Yamamoto
Nov 14 '18 at 9:50
Possible duplicate of Testing a session variable for null or empty space
– Tetsuya Yamamoto
Nov 14 '18 at 9:50
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53297193%2fexception-occur-when-i-compare-current-value-of-session-to-null%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53297193%2fexception-occur-when-i-compare-current-value-of-session-to-null%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
You should use
asoperator ifSession["EmployeeName"]contains null value:if (!String.IsNullOrWhiteSpace(System.Web.HttpContext.Current.Session["EmployeeName"] as string)).– Tetsuya Yamamoto
Nov 14 '18 at 9:49
2
Possible duplicate of Testing a session variable for null or empty space
– Tetsuya Yamamoto
Nov 14 '18 at 9:50