passing a value to a new form

Richard Brennan

I have an app with a log on screen. The user that logs on can have administrator access - this information need passing to the form that opens when they log on.

on the logon form i have:

string admin = "yes";
or
string admin = "no";

When the next from opens it needs to know if admin is yes or no. The new form disables functions if the log on is not an administrator.

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Raja Krishnamurthy15y ago
Accepted answer
It was so easy in VB .Net (modules) but in C# you got to create a Static Class and have properties. You can set those properties and access them all across your application without creating an instance of the class.

Ex,

public static class Global
{
public static bool isAdmin {get; set;}
}

now you can set the value from your form like Global.isAdmin = true; //or false as the case maybe

and access it in other form like

if (Global.isAdmin)
//do what you need to do for admin

you can learn more about static classes and members here.

HTH
Sam Hobbs15y ago
I think there is an easier solution. First I must say that I am not sure about all your code and requirements. Let's say however that you have something such as the following:
Application.Run(new FormLogon());
FormMain mf = new FormMain();
Application.Run(mf);
Then the change is likely as easy as:
Application.Run(new FormLogon());
FormMain mf = new FormMain();
mf.admin = "yes";
Application.Run(mf);
Except in FormMain you need to add a public member or property called admin. Then in the FormMain's Load event you use admin. This exact code will not do what you need to do but I don't know enough of the details of what you need to do to be able to be more accurate about the code.

Another possibility is to create a constructor for FormMain that has a parameter for admin but that might be too advanced for you.

All of this will be very easy to understand when you become familiar with the basics of the C# language.
Richard Brennan15y ago
thanx - i added a blank code file and it worked a treat.

But I first tried to add the static class to a new project type, class library - and it did not work. Do u know why?