Question

I have 2 forms in my project, form1 and form2. When I click in a button in form1 I run this code:

Form tempform = new Form2(); tempform.Show(); 

In my code for Form2 I have a label which I now need to change the text. How can I access the label?

I tried:

tempform.label1.value = 'new text' 

And that didn’t work, I even tried to access using the Controls collection but I think I messed that up. Is there any way I can access the label? OR is there any way I can pass a value to that new form and then have that form alter the label text.

Thanks

Answer 1

If the label value should only be set once, when the form is created, then use a constructor for Form2 like this:

public Form2(string labelValue) {   _labelValue = labelValue; } 

and then call that constructor when you create the form.

Alternatively, if the label changes over the lifetime of the form, make a public property:

public string LabelValue {   get { return label1.Text; }   set { label1.Text = value; } } 

Also I would recommend naming the parameters and/or properties to reflect the meaning of the value, for example ‘titleText’ instead of ‘labelValue’. That way Form2 can decide how it wants to display the information (in the title bar, a label, a textbox, etc), and Form1 doesn’t have to worry about that.

Edit: Consume the LabelValue property like this:

Form2 newForm = new Form2(); // Assign object to a Form2 instead of Form newForm.LabelValue = 'new text'; newForm.Show();