use of information from a previous form

[naghoumeh14]

let us consider we have two forms form1 and form2 and there are some information in form1 that i would like to use in form2... which method should i use to perform this action?

[sanforjackass]

if form1 create form2 then from form2 you can define a public var. like this: int x; public int X { set { x=value; } } then when you create you can send the var. like this: form2 f2=new form2(); f2.X=5; f2.show();

[naghoumeh14]

suppose we have a tab of buttons in form1 and i want to use the text of the clicked button in form2... how can i do such a thing?

[DaveyM69]

There are three obvious ways if Form1 is the parent. 1. Form1 sets a property in Form2 (as suggested above) 2. Form1 calls a method in Form2 3. Form2 raises a custom DataRequest event with custom EventArgs. Form1 subscribes to this and fills the event args accordingly when it handles the event. If Form2 is the parent form then a DataChanged event in Form1 and a suitable handler in Form2 is the way to go. If the hierachy is different, then a combination of the above up and down the hierachy will work. If that gets too complex then a separate manager class that routes events between the class instances can be useful.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Why are you using VB6? Do you hate yourself? (Christian Graus)

[sanforjackass]

use delegation: in form1 create textbox and put: public delegate void dd(string s); public static dd d; and put (d=new dd(write);) in public Form1() then write method (write): privet void write(string s) { textbox1.text=s; } in form2 create button and textbox then in click event put: Form1.d(textbox1);

modified on Wednesday, January 20, 2010 6:53 PM