how to call a variable in code behind to aspx page

Question

i know i have seen this but cant recall the correct way of doing it    basically i have a string variable called  string clients  in my  cs file   but i wasn t to be able to pass it to my aspx page something like   lt   clients  gt      please correct me  i do not recall or not sure how to do this   new to c   and when i googled it   it was not clear   or not many of these out there   searched as   asp net c   lt      gt  not consistent results   maybe because i do not know how to call these

User · Answer

I would create a property to access the variable  like this   protected string Test       get  set      And in your markup    lt    this Test   gt

User · Answer

You can access a public protected property using the data binding expression  lt    myproperty   gt  as given below        lt asp Label ID  Label1  runat  server  Text   lt   CodeBehindVarPublic   gt   gt  lt  asp Label gt    you should call DataBind method  otherwise it can t be evaluated       public partial class WebForm1   System Web UI Page            public string CodeBehindVarPublic   get  set          protected void Page Load object sender  EventArgs e                      CodeBehindVarPublic   xyz            you should call the next line  in case of using  lt   CodeBehindVarPublic   gt             DataBind

User · Answer

The HelloFromCsharp aspx look like this    lt    Page Language  C   AutoEventWireup  true  CodeBehind  HelloFromCsharp aspx cs  Inherits  Test HelloFromCsharp    gt    lt  DOCTYPE html PUBLIC  -  W3C  DTD XHTML 1 0 Transitional  EN   http   www w3 org TR xhtml1 DTD xhtml1-transitional dtd  gt    lt html xmlns  http   www w3 org 1999 xhtml  gt   lt head runat  server  gt       lt title gt  lt  title gt   lt  head gt   lt body gt       lt form id  form1  runat  server  gt       lt p gt          lt    clients  gt       lt  p gt       lt  form gt   lt  body gt   lt  html gt    And the HelloFromCsharp aspx cs   using System  using System Collections Generic  using System Linq  using System Web  using System Web UI  using System Web UI WebControls   namespace Test       public partial class HelloFromCsharp   System Web UI Page               public string clients          protected void Page Load object sender  EventArgs e                        clients    Hello From C

User · Answer

The field must be declared public for proper visibility from the ASPX markup  In any case  you could declare a property    private string clients  public string Clients   get   return clients         UPDATE  It can also be declared as protected  as stated in the comments below   Then  to call it on the ASPX side       lt   Clients     Note that this won t work if you place it on a server tag attribute  For example       lt asp Label runat  server  Text   lt   Clients         This isn t valid  This is       lt div  lt   Clients   lt  div

User · Answer

For   lt   clients  gt    to work you need to have a public or protected variable clients in the code-behind   Here is an article that explains it  http   msdn microsoft com en-us library 6c3yckfw aspx

User · Answer

Make sure that you have compiled your   cs file before browsing the ASPX page

User · Answer

You need to declare your clients variable as public  e g   public string clients    but you should probably do it as a Property  e g   private string clients  public string Clients  get  return clients    set  clients   value       And then you can call it in your  aspx page like this    lt   Clients  gt    Variables in C  are private by default  Read more on access modifiers in C  on MSDN and properties in C  on MSDN

User · Answer

In your code behind file  have a public variable  public partial class  Default   System Web UI Page       public string clients       protected void Page Load object sender  EventArgs e                   your code that at one points sets the variable         this clients    abc             now in your design code  just assign that to something  like    lt div gt       lt p gt  lt    clients   gt  lt  p gt   lt  div gt    or even a javascript variable   lt script type  text javascript  gt       var clients     lt    clients   gt      lt  script gt

User · Answer

First you have to make sure the access level of the variable is protected or public  If the variable or property is private the page won t have access to it   Code Behind   protected String Clients   get  set      Aspx   lt span gt  lt   Clients   gt   lt  span gt

[c#] how to call a variable in code behind to aspx page

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