CS0103: The name 'pm' does not exist in the current context

[adamjee]

I am passing an Object using Session from one form to other.
pm.a = a;
pm.b = b;
e.g. Session["master"] = pm;

OK, it passes and i receive it another form. at second form, I received it on Page Load
Master master = new Master();
Page_Load
{
pm = (Master)Session["master"];
}
protected void btnSubmitPolicy_Click(object sender, EventArgs e)
{
pm.c = c;
}

I declared pm at top of Class.
Now i want to add more properties in pm object. but under Submit_click...

Problem is that , pm initializes at each post back and clears initial values. I dont want to trust on Session thats why I need to get Session values in object when 1st time page Loads...

Please Help.

[Frinavale]

Problem is that , pm initializes at each post back and clears initial values. I dont want to trust on Session thats why I need to get Session values in object when 1st time page Loads...

Please Help.

Use the isPostBack Page property to determine whether or not it is the first time the user visits the page.

For example, to check if it's the first time visiting use something like:

If IsPostBack = False Then
    'This is the first time the user has visited the page
End If
 

-Frinny

[adamjee]

I am not satisfy withthe answer...

Basically Variable resets every time when Page refresh...

[Frinavale]

I dont want to trust on Session thats why I need to get Session values in object when 1st time page Loads...

What do you mean by this?
Why don't you want to "trust" what's in Session?


If you want to get values of an object "When its the First Time the Page Loads" you do this:

Master pm;
Page_Load
{  if( isPostBack == false)
    {
        pm = (Master)Session["master"];
    }
}

But that is not your problem.
Your problem is that you are not saving the changes to your object in the Button Click event code....

Since you are changing the state of your object in the Button Click event (setting more of the object's properties), you need to re-save that object in session in order to retain the "new values".

If you do not re-save your object, it will appear as if the object is "reset".
The reason is quite simply because it is reset...since you didn't save your changes.

Master pm;
Page_Load
{  
    pm = (Master)Session["master"];
}
protected void btnSubmitPolicy_Click(object sender, EventArgs e)
{   //what is c? has it been declared somewhere? are you sure it's being set properly?
    pm.c = c;
    Session["master"] = pm;
}

Oh yeah, also, you have not declared a variable named "pm"...you need to declare one in order to use it.

You need to change

Master master;
Page_Load{//...
 

To

Master pm;
Page_Load{//...
 

Otherwise you do not have a Master object variable named "pm" to use in your code.

-Frinny