Passing values from form2 to form1 using objects

[shoram]

it's no longer a problem passing variables between two form its just this

form1 is still open

i do a few actions that change a var in form2

and i want the new number to be send to form1 immediatly after those changes are done

how can i do so without opening a new form1 and sending the var into the only form1 that is open

[vijaydiwakar]

it's no longer a problem passing variables between two form its just this

form1 is still open

i do a few actions that change a var in form2

and i want the new number to be send to form1 immediatly after those changes are done

how can i do so without opening a new form1 and sending the var into the only form1 that is open

pls explain thy problem in detail

[shoram]

pls explain thy problem in detail

the problem is that i dont know how to write somthing in form1 while im in form2
without opening a new form1

[vijaydiwakar]

the problem is that i dont know how to write somthing in form1 while im in form2
without opening a new form1

to access the form u must have to create the object.
try this code
for that add two forms and one module and try this code

'in form1
Private Sub Form_Load()
   ReDim myObj(0)
   Set myObj(0) = Me
   Form2.Show
End Sub
'in form2
Private Sub Form_Click()
myObj(0).Caption = "hai"
End Sub
' in module
Public myObj() As Form

This will defenetly solve thy problem

[shoram]

im sorry but can you do it in c# i dont know anything in vb and thanks for helping

[vijaydiwakar]

im sorry but can you do it in c# i dont know anything in vb and thanks for helping

I'm sorry i don't no anything in C#

[kenobewan]

Suggest that you find a converter.

[shoram]

where can i find a converter? i didnt know they exist

[SammyB]

It's the same principle in C#, but you will need to pass the Form1 object to Form2 and change the Modifiers property of any control that you want to access from Privater to Internal. HTH --Sam

You can also create an event in Form2 that Form1 could fire whenever something changes. That is much more complecated, but easily done. If that is what you want, you should tell us whether you are using 2003 or 2005.

Here is the code for Form1:

		private void button1_Click(object sender, EventArgs e)
		{
			Form2 FrmChild = new Form2(this);
			FrmChild.Show();
		}

Here is the code for Form2. Notice that the constructor is overridden to get the Form1 object:

		private Form1 FrmParent;
		public Form2(Form1 parent)
		{
			InitializeComponent();
			FrmParent = parent;
		}
		private void button1_Click(object sender, EventArgs e)
		{
			this.textBox1.Text = FrmParent.textBox1.Text;
		}

[shoram]

sorry for the late replay but i have 2003 and the method you gave me doesnt work
if its not so hard can you please tell me how to do that in 2003
thanks in advance

[SammyB]

sorry for the late replay but i have 2003 and the method you gave me doesnt work
if its not so hard can you please tell me how to do that in 2003
thanks in advance

Well, I did do it in 2005, but it does not use any new features. What problem are you having?

[shoram]

i over came the error but how do i insert the value into the textbox?

[shoram]

i over came the error but how do i insert the value into the textbox?

ok forget that replay, my problem is diffrent
i need to pass a value from form2 to form1 not the other way

[SammyB]

ok forget that replay, my problem is diffrent
i need to pass a value from form2 to form1 not the other way

That's what I did in post #9 above, only I put the value into a Textbox on Form1. If you need to pass back a value, then you will need to create a Form1 property for Form2 to use:

public int Know;
private void button1_Click(object sender, EventArgs e)
{
	Form2 FrmChild = new Form2(this);
	FrmChild.ShowDialog();
	MessageBox.Show(Know.ToString());
}

Then, Form2 just puts the value into that property:

private Form1 FrmParent;
public Form2(Form1 parent)
{
	InitializeComponent();
	FrmParent = parent;
}
private void button1_Click(object sender, EventArgs e)
{
	FrmParent.Know = 42;
	this.Close();
}

[shoram]

by that answer i can surly belive that you saw the hitch hikcer galxci guide but not about that. when i did the thing you told me to it opened a diffrent form telling me the answer and i wanted that the form1 to get the value (without closing)