data passing

[merlinv]

I would like to pass data back and forth between forms.

An example would be good.

Thanks.

Merlin

 

[kmfna]

Merlin,

You can add arguments to the constructor. Look for the function in your code that has the "InitializeComponent()" function call, and that is your constructor. so, if you have a "Form2" and a "Form1", and you want to use a button on "Form1" called "button1". You might have something like this:

//button on form1
button1_Click(object sender, System.EventArgs e)
{
    Form2 f = new Form2();
    f.Show();
    this.Hide();
}

==============
//Constructor on form 2
Form2()
{
    InitializeComponent();
}

This will create a new instance of form2.

If you wanted to pass a string to Form2 to populate a label with you would change the constructor, or add an overloaded.

So now same form and button names, with the addition of "label1" on form 2

//button on form1
button1_Click(object sender, System.EventArgs e)
{
    string LabelText = "this will show up in the label";

    Form2 f = new Form2(LabelText);
    f.Show();
    this.Hide();
}

==============
//Constructor on form 2
Form2(string LabelText)
{
    InitializeComponent();
    
    label1.Text = LabelText;
}

Good Luck,
Kevin


- "The truth hurts, maybe not as much as jumping on a bicycle with no seat, but it hurts.