How to pass values across the pages in ASP net without using Session

Question

I am trying to improve performance of my web portal  I m using Session to store state information   But I heard that using session will decrease the speed of the application  Is there any other way to pass values across the page in asp net

User · Answer

You can use query string to pass value from one page to another    1 pass the value using querystring   Response Redirect  Default3 aspx value     txt Text     amp  number   n     2 Retrive the value in the page u want by using any of these methods    Method1       string v   Request QueryString  value        string n Request QueryString  number      Method2         NameValueCollection v   Request QueryString      if  v HasKeys                  string k   v GetKey 0           string n   v Get 0           if  k     value                         lbltext Text   n ToString                      if  k     value1                         lbltext Text    error occured                     NOTE Method 2 is the fastest method

User · Answer

You can pass values from one page to another by followings    Response Redirect Cookies Application Variables HttpContext   Response Redirect  SET    Response Redirect  Defaultaspx Name Pandian      GET    string Name   Request QueryString  Name      Cookies  SET    HttpCookie cookName   new HttpCookie  Name    cookName Value    Pandian      GET     string name   Request Cookies  Name   Value    Application Variables  SET    Application  Name      pandian     GET     string Name   Application  Name   ToString      Refer the full content here   Pass values from one to another

User · Answer

If it s just for passing values between pages and you only require it for the one request  Use Context      Context       The Context object holds data for a single user  for a single   request  and it is only persisted for the duration of the request  The   Context container can hold large amounts of data  but typically it is   used to hold small pieces of data because it is often implemented for   every request through a handler in the global asax  The Context   container  accessible from the Page object or using   System Web HttpContext Current  is provided to hold values that need   to be passed between different HttpModules and HttpHandlers  It can   also be used to hold information that is relevant for an entire   request  For example  the IBuySpy portal stuffs some configuration   information into this container during the Application BeginRequest   event handler in the global asax  Note that this only applies during   the current request  if you need something that will still be around   for the next request  consider using ViewState  Setting and getting   data from the Context collection uses syntax identical to what you   have already seen with other collection objects  like the Application    Session  and Cache  Two simple examples are shown here        Add item to Context Context Items  myKey     myValue      Read an item from the  Context Response Write Context  myKey       http   msdn microsoft com en-us magazine cc300437 aspx S6  Using the above  If you then do a Server Transfer the data you ve saved in the context will now be available to the next page  You don t have to concern yourself with removing tidying up this data as it is only scoped to the current request

User · Answer

You can assign it to a hidden field  and retrieve it using   var value  Request Form  value

User · Answer

There are multiple ways to achieve this  I can explain you in brief about the 4 types which we use in our daily programming life cycle   Please go through the below points   1 Query String   FirstForm aspx cs  Response Redirect  SecondForm aspx Parameter     TextBox1 Text     SecondForm aspx cs  TextBox1 Text   Request QueryString  Parameter   ToString      This is the most reliable way when you are passing integer kind of value or other short parameters  More advance in this method if you are using any special characters in the value while passing it through query string  you must encode the value before passing it to next page  So our code snippet of will be something like this   FirstForm aspx cs  Response Redirect  SecondForm aspx Parameter     Server UrlEncode TextBox1 Text      SecondForm aspx cs  TextBox1 Text   Server UrlDecode Request QueryString  Parameter   ToString       URL Encoding   Server URLEncode   HttpServerUtility UrlDecode    2  Passing value through context object  Passing value through context object is another widely used method   FirstForm aspx cs  TextBox1 Text   this Context Items  Parameter   ToString      SecondForm aspx cs  this Context Items  Parameter     TextBox1 Text  Server Transfer  SecondForm aspx   true     Note that we are navigating to another page using Server Transfer instead of Response Redirect Some of us also use Session object to pass values  In that method  value is store in Session object and then later pulled out from Session object in Second page   3  Posting form to another page instead of PostBack  Third method of passing value by posting page to another form  Here is the example of that   FirstForm aspx cs  private void Page Load object sender  System EventArgs e       buttonSubmit Attributes Add  onclick    return PostPage           And we create a javascript function to post the form   SecondForm aspx cs  function PostPage        document Form1 action    SecondForm aspx      document Form1 method    POST      document Form1 submit      TextBox1 Text   Request Form  TextBox1   ToString      Here we are posting the form to another page instead of itself  You might get viewstate invalid or error in second page using this method  To handle this error is to put EnableViewStateMac false  4  Another method is by adding PostBackURL property of control for cross page post back  In ASP NET 2 0  Microsoft has solved this problem by adding PostBackURL property of control for cross page post back  Implementation is a matter of setting one property of control and you are done   FirstForm aspx cs   lt asp Button id buttonPassValue style    Z-INDEX  102  runat    server    Text    Button            PostBackUrl      SecondForm aspx    gt  lt  asp Button gt    SecondForm aspx cs  TextBox1 Text   Request Form  TextBox1   ToString      In above example  we are assigning PostBackUrl property of the button we can determine the page to which it will post instead of itself  In next page  we can access all controls of the previous page using Request object   You can also use PreviousPage class to access controls of previous page instead of using classic Request object   SecondForm aspx  TextBox textBoxTemp    TextBox  PreviousPage FindControl    TextBox1    TextBox1 Text   textBoxTemp Text    As you have noticed  this is also a simple and clean implementation of passing value between pages   Reference  MICROSOFT MSDN WEBSITE  HAPPY CODING

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