CODEWITHSUNDEEP
c#asp.netvariablesglobal-variables
suman
suman

Reputation: 728

Make a local variable value global in c#

I have the following code.In this code i am able to get the string value like 1,2,3 etc through the use of eventHandling.How i get the value is not important for now.What i need now is to be able to access this string value outside the page_load event like in the function myfun() as given below.How do i acheive that.

protected void Page_Load(object sender, EventArgs e)
{

    hfm mymaster = (hfm)Page.Master;
    lcont lc = mymaster.getlcont();
    lc.myevent += delegate(string st)
     {
         //slbl.Text = st;

         string str =st;
      }
 }

   protectd void myfun()
   {
     //i want to access the string value "st" here.
   }

Upvotes: 1

Views: 17399

Answers (5)

NeverHopeless
NeverHopeless

Reputation: 11233

You can do it in two ways as i see:

1) Pass as param:

protected void Page_Load(object sender, EventArgs e)
{

    hfm mymaster = (hfm)Page.Master;
    lcont lc = mymaster.getlcont();
    lc.myevent += delegate(string st)
     {
         //slbl.Text = st;

         string str =st;
         myfunc(str); // pass as param
      }
 }

 protectd void myfun(string str)  // see signature
 {
     //i want to access the string value "st" here.
 }

2) Make a class variable:

string classvariable;
protected void Page_Load(object sender, EventArgs e)
{

    hfm mymaster = (hfm)Page.Master;
    lcont lc = mymaster.getlcont();
    lc.myevent += delegate(string st)
     {
         //slbl.Text = st;

         string str =st;
         classvariable = str; // set it here
     }
}

protectd void myfun()
{
   //i want to access the string value "st" here. // get it here
}

Upvotes: 1

Suji
Suji

Reputation: 1326

A single change can make it possible. declare str as global variable

public class Form1
{
     string str = "";//Globel declaration of variable
    protected void Page_Load(object sender, EventArgs e)
    {
    }
}

Upvotes: 1

joelrb
joelrb

Reputation: 216

Place your global (or class?) variable before the Page_Load or right after the Class declaration. 

public partial class Index : System.Web.UI.Page
{
   private string str = "";

   protected void Page_Load(object sender, EventArgs e)
   {

      hfm mymaster = (hfm)Page.Master;
      lcont lc = mymaster.getlcont();
      lc.myevent += delegate(string st)
      {
          //slbl.Text = st;

         str =st;
      }
   }

   protectd void myfun()
   {
     //i want to access the string value "st" here.

     //value of st has been passed to str already in page_load.
     string newString = str;
   }

}

Upvotes: 1

MattSizzle
MattSizzle

Reputation: 3175

You can make it public:

public - the member can be reached from anywhere. This is the least restrictive visibility. Enums and interfaces are, by default, publicly visible

Example

<visibility> <data type> <name> = <value>;

or

public string name = "John Doe";

Upvotes: 1

Andrew
Andrew

Reputation: 3663

In my experience, you would simply declare the variable you want global outside of the scope of the functions.

IE: Whatever / wherever they are contained. 

string st; // St is declared outside of their scopes
protected void Page_Load(object sender, EventArgs e)
{}
   protectd void myfun()
   {
   }

Upvotes: 1

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